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备战二模基础训练题.docx

备战二模基础训练题.docx
备战二模基础训练题.docx

测试一

21.Mrs. Wang often tells ______ s ome interesting stories in class.

A.we

B. us

C. our

D. 011门;

22.He was bom in Shanghai ______ February 5, 1989?

A.in

B. at

C. on

D. to

23.— What can you see in the picture?

—I can see a farm. And there ________ a lot of animals on it.

A.is

B. are

C. be

D. will be

24.Tom wanted to take some good photos, ______ h e lost his camera.

A. or

B. and

C. but

25?— ____ you play the baseball, Lily?

—Yes, I can.

A. Can

B. Must

C. should

26.1 have two pen friends. ________ of them are English.

A. Both

B. All

C. Some

27. — _____ bicycle is this?

—I think it\ Jirrfs. He has just bought a new one?

A. Who

B. Which

C. What

2& The film My Own Swordsman kept us ________ a ll the time.

29.I'm very proud that Beijing is one of _______ cities in the world.

30.— What was Tom doing at 9:00 last night?

——He _____ his homework. D. so

D. Need

D. Many

D. Whose

A? 1 augh B. laughed C? laughing D. to laugh

A. big

B. bigger

C. biggest

D. the biggest

A? does B.did C? is doing D? was doing 31.— What did Mr. Smith do before he came to China?

—He _______ in a car factory.

A. works

B. worked C? is working

32.1 will send you a message as soon as I _______ the news?

A. get

B. gets

C. got

33.— Where is Jane, mum?

—She ______ to the library. She will be back soon.

A. is going

B. has been C? has gone

34.It's well-known that the telephone _______ by Bell in 1876. D. will work

D. getting D. will go

D. was invented

35.— What did the teacher say to you just now?

—She asked _______ ?

A. where I learned English

B. where I learn English

C? where did I learn English D. where do I learn English

B

Giraffes are the tallest animals of all. They have long legs and long necks? Father giraffes can grow to nearly five and a half meters tall, and a mother giraffe to nearly five meters tall.

Giraffe skin is blotched(皮肤上的斑)in patterns (样式)of browns and yellows. No two have the same

pattern.

They live in parts of Africa. Their necks are long so they can reach high into trees to eat the leaves. Leaves give

giraffes most of the water they need so that they do not often have to drink wate匚A giraffe only drinks about once a day, Giraffes1 long legs mean they take big steps when they walk or run. One step can be about 5 meters long.

They can run very fast, A giraffe heart is the biggest of any animafs. Although giraffes are peaceful animals, they will protect themselves from lions?

Accepting an award may seem like a simple task, but each year the Academy Awards (奥斯卡奖)proves there may be more to it than you might think. Oscar history has seen its fair share of memorable and bad ?

So the question remains: what makes a great acceptance speech? in mind for

your next shining moment:

1. Be thankful and simple. Make sure you thank the important people goal.

Don't be too arrogant or full of yourself but don't be so modest (谦 众)thinks you are looking down upon the honor. It's only natural to be a get on well with the audience ? At this year's Oscars, The King's Speech the story of how he only came to make the movie thanks to the help of was in the audience. He showed grace and humility (谦卑)when he mentioned her: “So, with

this tonight, I honor you and the key point of the story is, listen to your mother ;

2. Keep it short. Say as much as you can in as few words as possible. There's no need to thank every single person you know. As Oscar producer Bruce Cohen warned people at the annual nominees luncheon (年度提名人?宴)before this year 5s show, "Nothing is more dangerous than a winner reading a list of names.Make each sentence meaningful and don't get too carried away.

3. Finally, make the best use of your moment. Don, be afraid to have a little fun and say something unforgettable Cleverness and humor will help your speech stand out in a good way and keep everyone entertained ? Don 5t make rude and unfit jokes, especially about others. Such jokes may get everyone talking, but you may be the only one laughing in the end ?

A. four meters

B. five meters

C. five meters and a half

D. six meters

52. Why does a giraffe only drink once a day? Because _________ ?

A. he can drink enough at a time B ? he doesn^t need much water C ? he has a stomach like a camel does D. leaves give him the rest of water 53. What is the passage mainly about?

A. Giraffe skin pattern.

B. Protection of giraffes.

C. Some facts about giraffes.

D. Giraffes and lions ?

C

We were on our tour a few summers ago, driving through Chicago, we got pulled over. A middle-aged policeman came up to the car and some trouble at first. Looking at us, he said, "You were speeding. Where Our guitarist (吉他手)、Tim, told him that we were on our way to his way towards us totally changed ? He asked, "Oh, so you boys are in a that we wee

He then asked all the usual band questions about the type of the we had been at it. Suddenly, he stopped and said/9

Tim, you want to get

when right outside of the city, was really wanted to give us are you going in such a hurry?^ Wisconsin to play a show. Then music group?" We told him

music we played, and how long out of this ticket, don't you?”

Tim said, "Yes." So the officer asked him to step out of the car. The rest of us, inside of the car, dicing know what to think as we watched the policeman talk to Tim.

Next thing we knew, the policeman was putting Tim in the back of the police car that he had parked in front of us. With that, he threw the car into reverse (倒车),stopping a few feet off our car. Now we suddenly felt nervous? We didn't know if we were all

going to prison, or if the policeman was going to sell Tim on the black market or something ? All of a sudden, the policeman's voice came over his loudspeake 匚 He said, “ Ladies and gentlemen, for the first time ever, we have Tim here singing on Route 90?" Seconds later, Tim started screaming into the receiver. The policeman enjoyed the performance (演出),and set us on our way without a ticket.

54. What does the underlined sentence “we got pulled over" mean?

A. We pulled the car over.

B. We pushed the car upside down.

C. We were stopped.

D. Our car broke down.

55. The policeman became friendly to the boys when he knew they _________

A. were going to join a group

B. were young musicians

C. were driving for fun

D. were going to a concert

56. The boy probably felt _______ when they drive off.

A. joyful

B. upset

C. nervous

D. afraid

thank-you moments, good

Here are three tips to keep who helped you reach your 逊的)that the audience (观 little excited, so use this to director Tom Hooper told his Australian mother, who

This time, Melissa Leo's use of the dirty word during her acceptance speech was the first in Oscar history. She said it before covering her mouth: U I really don't mean to hurt the audience's feelings/5

57.The underlined word "arroganf, may mean _______ ?

A. honest B? relaxed C? excited D? self-centered

58.To make a great acceptance speech one must _______ ?

A. thank his mother

B. be careful not to say too much

C? thank all the people who once helped him D. be humorous and funny to make the audience laugh

59.What is true with Tom Hooper?

A. He has an Australian mother. B? He thanked his father in the shining moment.

C. He is the hero of the film "The King's Speech”?

D. He used some dirty words in his acceptance speech.

60? What is the best title for the passage?

A. Giving a Thank-you Speech

B. Accepting the Academy Awards

C. Some Advice for the Acceptance Speech D? How to Win the Academy Awards Successfully

八、阅读短文,根据短文内容回答问题。(共10分,每小题2分)

Freda Bright says, "Only in opera (戏居U) do people die of love.n It's true? You really can*t love somebody to death. I've known people to die from no love, but Fve never known anyone to be loved to death. We just can f t love one another enough. A heart-warming story tells of a woman who finally decided to ask her boss for a raise in payment. All day she felt nervous and uneasy? Late in the afternoon she collected the courage to approach her employer. To her joy, the boss agreed to a raise. The woman arrived home that evening to a beautiful table set with their best dishes? Candles were softly glowing. Her husband had come home early and prepared a festive meal. She wondered if someone from the office had told him the news, or... did he just somehow know that she would not get turned down?

She found him in the kitchen and told him the good news. They held each other in arms and kissed, then sat down to the wonderful meal. Next to her plate the woman found a beautifully lettered note? It read, ^Congratulations, darling! I knew you'd get the raise! These things will tell you how much I love you."

Following the supper, her husband went into the kitchen to clean up. She noticed that a second card had fallen from his pocket. Picking it off the floor, she read, "Doni worry about not getting the raise! You are good enough for it anyway! These things will tell you how much I love you.'1

Someone has said that the measure(K/S) of love is when you love without measure? What this man feels for his wife is total acceptance and love, whether she succeeds or fails? His love celebrates her victories and cares for her wounds? He stands with her, no matter what life throws in their direction.

Upon receiving the Nobel Peace Prize, Mother Teresa said, "What can you do to promote world peace? Go home and love your family." And love your friends? Love them without measure.

65.Can we love one another enough?

66.Did the woman get raised or not?

67.How many cards did the husband make for his wife?

68.What did the husband feel for his wife?

69.What's the passage mainly about?

70.不要睡得太晚。这对身体有害。

DoiVt stay up too late. It's _____________________________ your health.

71.小王你怎么了,脸色这么苍H?

_____________________________ you, Xiao Wang? You look so pale.

72.有麻烦时你可以找老师帮忙。

You can _______________________________ when you are in trouble.

73.你为什么不试穿一下那条红裙子?多好看啊!

_________________________ that red dress? How nice it looks!

74.除了上课,泰勒小姐所有时■间都花在帮家里做家务。

But for schooling, Miss Tailor _________________________________________ housework.

35.—Do you know ________ for Shanghai?

一Next Monday.

A. when Mr Smith left C. when Mr Smith will leave

D. when will Mr Smith leave

B

Why keep them?

People keep dogs and cats because they enjoy their friendship. Fish cannot be friendly, but they have beautiful shapes and colours ? They are pleasure to watch as they swim in their tanks (水

槽).

What do they need?

First of all, the fish need a suitable (合适的)tank, and you must fill the tank with suitable water. It is also good for them to have a few water plants in the tank to keep the water pure (纯 彳争)?A

测试二

21. Mum, Pm thirsty. Would you please pass _______ a glass of juice?

A. her

B. me

C. him 22. Yao Ming was born in Shanghai ___________ 1980.

A. in

B. on

C. at 23. —Have you seen Mr. Smith?

—Yes. Look, he __________ his bike over there. A. cleans B. cleaned C. is cleaning 24. — _______ is your mother?

——She is in the kitchen ? D. us D. of D. has clean A. How

B. What

C. When

25. — Jack, how are you feeling today?

一Much _______ . I think I can go to school tomorrow.

A. good

B. better

C. well

26. Fm thirsty, Mum. I want

to drink ?

A. everything

B. anything

C. something

27. —Mum, may I watch TV now?

—No, you _______ finish your homework first. A. mustn't B. must C ? need 28. Hurry up,

you will be late for school.

A. or

B. but

C.so

29. —What does your sister like doing in her spare time?

一She_______ watching TV.

A. likes

B. liked

C. has liked 30? She will play with you as soon as she _______ her homework ? A. finish B. finishes C. will finish

D. Where

D. best

D. nothing

D. can't D. and

D. had liked D. finished

31. —I didift see you last week.

—I had a bad cold. The doctor asked me _________ a t home for a week.

A. stay

B. staying

C. stayed

32. 一Hello! This is Henry Speaking. Fd like to speak to your father.

一Sorry, he has ______ Shanghai.

A. been in

B. been to

C. gone to 33. ——I called you yesterday evening, but there was no answer.

——Oh, Fm sorry, I _____ dinner in my friend's home ? A. have B. had

C. was having 34. The Summer Palace ________ in 1750.

D. to stay

D. come to

D. have had A. was built B. is built

C. builds

D. built

B. when did Mr Smith leave

few snails (蜗牛)in the tank are good idea, too. They will keep the water clean.

What about feeding them?

There are many kinds of fish food that you can get in pet shops? Most are suitable for all kinds of fish. You should feed your fish once a day only. It is important not to give them too much food. Just give them as much as they can eat in about 15 minutes. This will keep them healthy.

51.It is not good to put in the fish tank.

A.a few snails

B. a few water plants

C.only a little water

D. enough clean water

52.How often can you feed the fish?

A.Once a week.

B. Once a day.

C? Every fifteen minutes. D. As many times as possible?

53.Which of the following is NOT true according to the passage?

A.Some people love to keep fish of beautiful shapes and colors.

B.A suitable tank with suitable water is important for fish keeping.

C? All the fish food sold in the pet shops are suitable for any kind of fish.

D.If it takes the fish 30 minutes to eat up the fish food, the food is too much.

c

Sometimes the most difficult thing about feelings is sharing them with others. Sharing your feelings helps you both when your feelings are good and when they aren^t so good? Sharing also helps you to get closer to people you care about and who care about you.

Before you can share your feelings with someone, you have to know what feelings you have ? Maki ng a list of your feelings can help? You can do this in your head or by writing them out on a piece of paper or even by drawing pictures.

If youre feeling sad, worried, or upset, you'd better tell someone? If you keep such feelings locked inside, they can even make you feel sick! So if you talk with someone who cares for you, like your mom or dad, you will start to feel better. /But what if you don't want to talk with your mom or dad? Then find another trusted (可彳言赖1%) adult? Maybe this person can help you talk what you mean, try explaining it in a different way. Is there anything you think could be done to make things better? If so, say 让.

54.You also need to when you want to talk about your feelings.

A. find a quiet place

B. make a small talk

C.choose the right person D? choose the right time

55.Which of the following is NOT true according to the passage?

A. Sharing feelings helps you to get closer to people?

B? Keeping bad feelings locked inside can make you sick.

C? It isn*t helpful that you share your feelings when you feel good.

D.Many people find it difficult to share feelings with someone?

56.What can we tearn from the passage?

A.All people feel shy about sharing their feelings.

B.Children need to share all their feelings with their parents?

C? Kids should try their best to deal with the problems they meet.

D. Its good for people to share feelings with a trusted person?

七、阅读短文,根据短文内容,从短文后的五个选项中选出能填入空白处的最佳选项。选项中有一项为多余选项。Peter and I live in the same building. 61 , but mine is on the ninth floor. He is kind but careless, and sometimes gets into trouble-

Last Friday afternoon, Peter went to a wild island to spend his holiday with his friends. They swam in the river, went fishing, played the guitar. 62 ?

Three days later, they decided to come back to the bank. Unfortunately, their boat hit a rock and soon went down. They were all in danger. With a villager's help, all of them were out of danger- They didn't come back until midnight. Peter was too hungry and quite tired. So he wished to get home as soon as possible. But the lift didn9t work. 63_ . He stopped by my door and took out a key. Of course, he could not open the door. He tried it again and again, but failed. He became angry and shouted, TT1 cut

you down with a knife!^

64 ? I understood at once what was happening and said, "You are trying to open a wro ng door, Peter."

“Sorry, I can't agree with you, Mike!” he shouted, Tt,s my room? You have entered it by mistake!"

八、阅读短文,根据短文内容冋答问题。(共10分,每小题2分)

Anne Holland's speech

Dear Students

Fm very happy to be your guest speaker today. It is a great pleasure to visit your school and to meet all of you.

I would like to tell you about myself. I have been a news reporter for the past fifteen years. I chose this job so I could travel the world, but the job has taught me many unforgettable lessons. The work is sometimes difficult? I have seen famines(饥荒),wars, earthquakes(出也震),poverty and death? But I have also seen courage, hope and happiness?

In India, I visited a city where there were many homeless children. Some were as

young as four years old. They lived by begging (乞讨)or stealing. But then a wonderful lady called Rosa opened a home for them. Within one year, she was looking after two hundred children. She clothed them, fed them and taught them. She gave them hope. Another time, I was in Turkey after a terrible earthquake? In one place, I found an old lady whose house was in ruins (成为废

墟)?Her son was missing and rescue workers said there was no chance that he was still alive? But the old lady did not give up hope. For four days, she moved heavy stones one at a time by herself. She did not stop until she found her son. He was alive. Here in China, I met a young boy with a serious medical condition. He had undergone twenty operations and spent nearly his whole life in hospital. I thought he would be sad, but when I met him, his smile was so warm and welcoming.

In life, we need role models that we can admireC 崇拜)and learn from? When my life is difficult, I try to remember the courage and goodness of these three people?

65.How long has Anne Holland been a news reporter?

66.What did Rosa do for the children?

67.Was the old lady's son saved?

68.In which country did Anne Holland give this speech?

69.What lesson do you think Anne Holland learnt from these three people?

九、完成句子(共10分,每小题2分)

根据屮文意思完成句子。

70.我们己工作了两个小时,该休息了。

We have worked for two hours. It's ____________________________ a rest.

71.小伙子,你哪不舒服?

_________________________ x yang man?

72.我认为他看上去不像她母亲。

______________________ she looks like her mother.

73.当李先生听到这个好消息吋,兴奋得说不出话來。

Mr. Li was_______ e xcited ________________________ s ay anything when he heard this piece of good news.

74.要下雨了,你最好叫你爸爸不要出去散步了。

It is going to rain. ____________________________________________________ .

测试三

21 ? 一Who's your Chinese teacher?

—Miss Zhang ? She has taught_____ Chinese for two years. A. our B. us

C. ours

D. we

22. —When will Mr. Black come to Beijing?

— _______ t he morning of September 5山?

A. In

B. On

C. At

D. For

23. There _____ something wrong with my bike today, so I have to walk to school.

A. is

B. are

C. has

D. have 24. Beijing is the capital of China and it is one of ________ cities in the world ?

A. big

B. bigger

C ? biggest

D. the biggest

25. 一 ___ do you visit your grandparents, Jane?

-Once a month. A. How soon B. How long C. How often D. How far

26. Look! The students are playing on the playground ? Some are running, some are playing basketball, A. other B ? the other C. another D. others 27. Our teacher told us ______ a t the Science Museum on time.

A. arrive

B ? arrived

C ? to arrive

28. Jim, hurry up, ________ weTl be late for the concert.

A. but

B. or

C. so

35. —Could you tell me _______ 1

—Next week.

A ? when John will come back C ? when John came back

Tom arrived at the bus station quite early for Paris bus. The bus for Paris would not leave until five to twelve. He saw a lot of people waiting in the station. Some were standing in line, others were walking around. There was a group of schoolgirls- Their teacher was trying to keep them in line. Tom looked around but there was no place for him to sit.

He walked into the station cafe ? He looked up at the clock there .It was only twenty to twelve. He found a seat and sat down before a large mirror on the wall. Just then, Mike, one of Torres workmates, came in and sat with Tom.

"What time is your bus?" asked Mike. “There's plenty of time yet J answered Tom. “Well, I'll get you some mo re tea then/5 said Mike.

They talked while drinking. Then Tom looked at the clock again. u Oh! Its going backward (倒行)!” he cried. U A few minutes ago it was twenty to twelve and now it's half past eleven.^

are watching.

D. arriving

D. and 29. My brother A. went —to Canada to learn English in 2005. B.

goes C. will go 30. -Be quiet! The children —Oh, sorry.

A. sleep 31. His father

D. would go

now.

A ? works

B. slept

C. were sleeping .in the factory since he was twenty. B.

has worked

C. will work

D. are sleeping D. was working

32.—Jim, ________ you answer the last question?

—Sorry, I cant ITs too hard ? A. need B. may

C. must

D. can

33. If it

tomorrow, we'll go to Bird's Nest.

A. didift rain

B. woift rain

C. doesn't rain

D. isn't raining 34. These photos

A. take on the Great Wall last week.

B. took C ? were taken

D ? are taken

B. when will John come back D. when did John come back

u Ybu7e looking at the clock in the mirror.^ said Mike? Tom was so sad. The next bus was not to leave for another hou匚

Since then Tom has never liked mirrors?

51.The bus for Paris would leave at ____________ ?

A.12:05

B. 11:55

C. 11: 30

D. 11:40

52.Tom went into the station cafe because _______ ?

A.Mike asked him to have a cup of tea

B.he didn't like to stay with the schoolgirls

C? if was quite early and he could find a seat there

D. he wanted to have a drink with his workmate there

53. ___________ , so he was sad.

A.There was something wrong with the clock

B.Tom couldiVt arrive in Paris on time

C.Tom couldn?t have coffee with Mike

D.The train arrived late that day

c

Thinking is something you choose to do as a fish chooses to live in water. To be human is to think? But thinking may come naturally without your knowing how you do it. Thinking about thinking is the key to critical(扌比判性的)thinking. When you think critically, you take control of your thinking processes (过程).Otherwise, you might be controlled by the ideas of others. Indeed, critical thinking is at the heart of education.

The word “criiical" here has a special meaning. It does not mean taking one view against another view, as when someone critic izes another person for doing something wrong. The nature of critical thinking is thinking beyond the easily seen—beyond the pictures on TV, the untrue reports in the newspapers, and the faulty reasoning.

Critical thinking is an attitude as much as an activity. If you are interested in life and want to dig deeper into it, you are a critical thinker. If you find pleasure in deep thinking about different ideas, characters, and facts, you are a critical thinker.

Activities of the mind and higher-order reasoning (扌隹理)are processes of deep and careful consideration? They take time, and do not go hand in hand with the fast speed in today's world: fast foods, instant coffee, and self-developing film. If you are among the people who believe that speed is a measure (尺度)of intelligence (智慧)、you may lean】somethin口new from a story about Albert Einstein. The first time Banesh Hoffman, a scientist, was to discuss his work with Albert Einstein. Hoffman was too nervous to speak. But Einstein immediately made Hoffman feel comfortable by saying, "Please go slowly. I don5t understand things quickly."

54.Critical thinking is important to us because if we do not think critically, _________ .

A. it will be hard for us to think naturally and fast

B? we might be controlled by other peopled ideas

C? we will follow the ideas of others naturally

D? we might be fooled by other peopled ideas

55 - If you are a critical thinker, you will _________ ?

A.take one view against another view

B.trust the reports in the newspapers

C- think deeply about different ideas

D. criticize other people for their mistakes

56. In the last paragraph, "something new M suggests that __________ ?

A. speed can improve intelligence

B? intelligence is not decided by speed

C? the smarter you are, the faster you do things

D? the faster you do things, the smarter you become

七、阅读短文,根据短文内容,从短文厉的五个选项中选出能填入空白处的最佳选项。选项中有一项为多余选项。

There was a boy who was sent to a boarding school.^He used to be the brightest student in his class? He was at the top in every

competition. 61 ? His grades started dropping? He hated being in a group? He was lonely all the time. He felt that no one loved him.

His parents began to worry. But even they did not know what was wrong?_______ 62 ____ .

They sat on the bank of the lake near the school. The father started asking him questions about his classes, teachers and sports. Then he asked, "Do you know, son, why I am here today?,'

The boy said, “To check my grades?"

"No, no/' his dad replied. “I am here to tell you that you are the most important person for me. _____________ I want to see you happy. I don't care about grades. ______ . YOU ARE MY LIFE."

Now the boy had everything he wanted, 64 ? He meant the world to someone?

Thanks a lot, Dad. YOU ARE MY LIFE.

八、阅读短文,根据短文内容冋答问题。(共10分,每小题2分)

Homework is a big part of going to school. Unluckily, homework has to be done outside class一during times when you would probably much rather be doing something else, for example, you like going to a birthday party instead of copying out a whole Chinese text. Luckily, there are several things you can do to make homework less work?

First, be sure you understand the task? Write it down in your notebook if you need to, and don't be afraid to ask questions about what's expected. If you want, you can also ask how long the special homework task should take to finish, so you can plan your time.

Second, use any small pieces of time you have in school to work on your homework? Many schools have study halls that allow students to study or get homework done. The more work you can get done in school means the less you'11 have to do that night.

What if you don't have time in school to get homework done? Yoifll need to think about how much homework you have for a given night and what else is going on that day, and then plan your time. Most high school students have more than two hours of homework a night. If it^ a heavy homework day and it seems like you got a task in every subject but gym and lunch, youTl need to spend more time on homework .Il's a good idea to come up with some kind of homework timetable, especially if you enjoy sports or activities or have an after-school job?

65? Is homework a big part of going to school?

66? What do students like doing outside class?

67? Where can students study or do their homework in school?

68.How long do most high school students spend on their homework a night?

69.What advice does the writer give students on homework in the passage?

书面表达(25分)

九、完成句子(共10分,每小题2分)

根据屮文意思完成句子。

70.杨林,放学厉和我一块去购物怎么样?

______ going shopping with me after school, Yang Lin?

71.今天太热了,为什么不去游泳呢?

It's too hot today?________ o swimming?

72.我们从良乡到北京乘高铁需要半小时。

________ go from Liangxiang to Beijing by sky train.

73.昨天李英洗完衣服才做作业。

Li Ying _______ her clothes yesterday.

74.我认为我们没有必要过于担心日本地震给我们带來的影响。

________ the influences which the earthquake in Japan has brought to us.

测试四

21.Tom is a kind boy. ____ is always ready to help others?

A.He

B. His

C. Him

D. Himself

22.Lily gets up _____ 7 o'clock?

A.in

B. on

C. at

D. to

23.There ___ many places of interest in Beijing.

A. has B? have C? is D. are

24.■一___ helped the poor cat find its home?

…My best friend, Mary.

A. What

B. Who

C. Whose

D. Which

25.The price of the bus ticket is much ____ than before?

A. cheap B? cheapest C. cheaper D. the cheapest

26.My mother has two brothers? One is a doctor, ___ is a lawye匚

A. other B? another C. others D. the other

27.一- ____ you give your seat to this old man?

―Of course?

A. Can

B. Shall

C. Need

D. Must

https://www.wendangku.net/doc/da11084515.html,s very late at night, _____ our teacher is still working .

A. and

B. but

C. or

D. so

29.… Where is your grandpa now?

—He _______ newspaper in the living room.

A. read

B. is reading

C. was reading

D. reads

30.If you're strict with yourself, you ______ great progress?

A. make

B. made

C. will make

D. have made

31.Parents always ask their children ____ all kinds of difficulties bravely.

A. face B? facing C? to face D. faced

32.— What did Lucy do yesterday afternoon?

■一She __ her parents do the housework?

A. help

B. helped

C. will help

D. is helping

33.Students in Beijing _____ away many books to the Hope Schools since 2009?

A. have given

B. give C? will give D. gave

34.The 29th Olympic Games _____ in Beijing in 2008.

A. is held

B. was held

C. holds

D. held

35.——Can you tell me ___________ in the future?

-一Sure? It must be much better .

A. what will our life be like

B. what our life will be like

C.what is our life like D? what our life is like

B

A strong earthquake has hit the town of Galta 200 kilometres north of Madras. The earthquake hit the town at 7:15 yesterday evening. The earthquake measured(量出)7.2 on the Richter scale(里克特震级),the strongest for five years.

The earthquake happened as most people were having their evening meal at home. There were very few people outside in the streets?Buildings fell down and many fires started. The electricity and water were cut off.

As it was dark, the emergency services had a lot of problems? There was no electricity for lights, and there was no water to put out the fires. Early this morning, planes flew over the town to see the damage.

The emergency services are now trying to reach the town. The nearest airport is at Bandeh about 100 kilometers away? The railway station at Galta is closed, because four bridges fell down in the earth. The nearest train station is 32 kilometres away at Solan. We shall have more reports for you during the day?

51. What were the most people doing when the earthquake hit the town?

A. Sitting outside?

B. Cutting off the electricity?

C.Staying at home?

D. Starting fires.

52? Why didn^ the emergency services reach the town?

A.Because it was dark. B? Because planes flew over.

C? Because there was no wate匚 D. Because four bridges fell down

53.How far is the nearest airport from the town?

A. About 100 kilometers away. B? 32 kilometres away.

C.About 72 kilometers away.

D. 200 kilometres north of Madras.

c

All over the world, the global diet includes fast food一prepared items from inexpensive restaurants, snack bars, or food stands. Some examples of American fast food are hamburgers, hot dogs, sandwiches, fried chicken, and so on. Some types of intemational fast foods might be German sausage and Schnitzel, Italian pizza, Japanese sushi and tempura, Chinese eggrolls and noodles and the like? The variety of fast foods all over the world is growing. Even so, this kind of style is becoming worldwide. Fast-food places usually prepare and serve the items quickly. Many are part of fast-food chains (eating places with the same name and company owner). For example, the biggest and most famous American fast-food chain serves hamburgers in nearly every part of the world.

For several reasons, many people choose fast food. First, it is quick and convenient- Second, it is cheaper than special home-cooked meals or formal restaurant dinners. And third, it is easy to find every eating place with the same company name. The atmosphere and style of most fast-food places is casual, comfortable, and familiar.

Why do other eaters stay away from this fast, easy kind of nourishment? The main reason is its low nutritional value? Fast food doesn't have large amounts of fiber, vitamins, minerals, and the like-elements necessary for good nutrition and health. In contrast (相反),most types of fast food have a lot of fat, sugar, or salt in them. Possibly, these things can cause or increase health disorders, like heart disease, and some kinds of cancer. Recently, these quick and easy kinds of world wide nourishment are generally getting better and more healthful. For example, many fast-food restaurants now have put vegetable items on their menus ?

Of course, human beings around the world don" always eat in fast-food places.The variety of food choices is large now and is probably going to increase?The number of food preparation methods is growing too. Cooking customs, eating habits, and food preferences all over the world are becoming more healthful. In these and other ways, the global diet is changing.

54.From Paragragh 1 ,we can know that ___________________ ?

A.America serves four kinds of fast food

B.we used to have more types of fast food

C.different countries have different types of fast food

D.America serves fewer fast food than other countries

55.The underlined phrase “stay away frorrT means ___________ ?

A. move away from

B. disorder C? get out of D. dislike

56.The passage is mainly about ___________ .

A. the changing global diet

B? the increasing types of diet

C? the reason why people choose fast food

D.the reason why people dislike fast food

七、阅读短文还原句子(共8分,每小题2分)

Liz was excited. She was going to Asia with her mom. Neither of them had ever travelled out of the United States before? They were going to fly to Hong Kong? 61 、they would travel to Shanghai and Beijing.

"Beijing is inland?62 ? I forget the name of the port. Anyway, we*re going to see the Great Wall, the Tiananmen Square,

and the Forbidden City. Its going to be so cool!'1 she told her neighbor Jane?

From China,they would go to Japan. From Japan, they would catch a flight back to Los Angeles.

H 63 ? Its only going to cost us $2,800 each, IF we don't shop a lot/1she laughed?

H I hope your trip is more fun than mine was," said Jane?"I travelled to the Bahamas on a large ship. 64 ? I stayed in bed for almost three days?"

"We've heard about those /' said Liz. 'Tm sure Mom and I will have a happy holiday.11

八、阅读与表达(共10分,每小题2分)

A type of bird that is now extinct (》肖失)is the passenger pigeon? The passenger pigeon lived in the eastern part of North America. Scientists believe that in the year 1500 there were as many as five billion of these birds living from Canada to the Gulf of Mexico. They flew at great speeds and would travel to many places to look for food. Passenger pigeons grew to be about 16 inches Iong.

Settlers who came to North America killed the passenger pigeon for food and for its feathers? The forests where they lived were cut down to clear the land for farming. Because the passenger pigeon laid only one egg at a time, their population did not grow quickly. The last passenger pigeon died at Cincinnati Zoological Gardens in 1914.

Another type of bird that has become extint is the dodo. The dodo lived on an island called Mauritius in the Indian Ocean? It had short, stubby legs and wings and a large curved beak. The dodo was about the size of a large turkey. It was acturally related to the pigeon, but it could not fly. Like the passenger pigeon it laid only one egg at a time? Dodos became extinct because they were eaten by sailors and animals, such as pigs and monkeys, that the sailors brought to the island. The dodo is believed to have died out in 1680.

Another flightless bird that has become extinct is the moa. The moa lived on the North and South Islands of New Zealand. Like the dodo, the moa's legs were shorter, but some of these birds grew to be more than ten feet tall. And the causes of its extinction is the same as the dodo's? The moa is believed to have died out sometime during the 1700s.

65.Were there many passenger pigeon in the year 1500?

66.When did the last passenger pigeon die at Cincinnati Zoological Gardens ?

67.Where did the dodo live before it died out?

68.How many kinds of birds have died out in the passage?

69.Why have these birds died out?

第四部分书而表达(共25分)

九、完成句子(共10分,每小题2分)

根据屮文意思完成句子。

70.该吃晚饭了。

___________________________________ suppe匚

71.春天來了,咱们去植树吧。

Spring is coming. _____________________ to plant trees.

72.河水过去很脏,但是现在很干净。

The river ________________________ dirty. But it's very clean now.

73.父母和邻居都为他而自豪。

__________________________________________ him.

74.学生们作业太多,用在体育锻炼上的时间很少。

The students have ___________________________________________ physical exercises.

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weather in England and their number increased year by yea

匚As a result, when in 1985 the government of China wanted to bring back the Milu deer, the Duke of Bedford was able to help. The first deer came back to China to the Nanhaizi Milu Park 20 kilometers south of Beijing and the centre in Dafeng, Jiangsu province?

The deer certainly seem happy to be back in China because their number has grown quickly. There are now so many of them that a new park has been opened for them in Hubei Province. At the moment the Milu deer live in centres where they are being well protected and cared for. It is hoped that one day there will be enough animals to let them live in the wild again.

294words

54.The Milu deer disappeared long ago in China because _________ .

A. they were not well protected

B. they could find nothing to eat

C? they died of a serious disease D? they had the habit of living together

55.After some of the Milu deer were taken to Britain, _________ ?

A.people used them to carry things

B.the Duke of Beford sold them all

C.they didn^t like the weather there

D? their rmmber became larger and larger

56.What's the best title of the passage?

A. The number of the Mulu dee匚

B. The life of the Milu deer.

C.The return of the Milu dee匚

D. The importance of the Milu deer.

B

Read how Sofia writes a composition.

1 SOwords

51.What does Sofia do first before she writes the composition?

A.She looks at the title and thinks a lot.

B.She has a sandwich and goes to watch TV.

C? She writes a few ideas onto a piece of paper.

l.The weekend before

she has to give it to the

teacher, she

sits on

her

own in the kitchen. First,

she looks at the title and

thinks a lot.

2.Then she writes a few

ideas onto a piece of

paper, in no particular

order. She looks up a

couple of words in the

dictionary and writes

those down.

3 .The n she has a

sandwich and goes to

watch TV.

4.The next day she looks

at what she wrote. She

adds some more ideas.

Then she decides how to

order her ideas?She

starts to write.

5.There are some words

she's not sure about so she

looks them up in her

dictionary?

6.When she has finished

writing, she reads

carefully through her

composition?She

crosses some things out

and changes one or two

sentences ?

7.Then she looks back at

her notes from other

written work. She makes

sure she hasn't made any

of the same mistakes ?

S.Finally, she writes out

her composition onto a

clean piece of paper and

puts it in her bag.

D? She looks up a couple of words in the dictionary.

52.When she meets some words she's not sure, _________ ?

A. she writes them down

B. she looks back at her notes

C? she crosses some things out D. she looks them up in the dictionary

53? From the passage we can know Sofia is a ________ ?

A. driver

B. doctor

C. student

D. parent

七、阅读短文,根据短文内容,从短文后的五个选项屮选出能填入空白处的最佳选项n选项屮有一?项为多余选项。(共8分,每小题2分)

____ 61 ___ . A blind man climbed Mt.Qomolangma! Can you believe it? Fm still surprised at (his.

Eric Weihenmeyer has been blind since he was 13. _______ 62 ___ . After he became blind, he started mountain climbing?Most mountain climbers need to use their eyes to climb mountains. How can Eric do this without the use of his eyes? Well, Eric climbs by feeling with his hands and listening to the sounds around him. Eric also always climbs with friends. They wear special jackets with bells and he follows this sound, too.

____ 63 ___ , Eric decided to climb Mt.Qomolangma. Mountain climbing experts were very shocked when they heard this. Mt.Qomolangma is a very difficult mountain to climb? Many people try but don't succeed? The experts said he couldn5t do it, but Eric wasn't worried.

____ 64 ___ ? They started the challenging climb? They climbed for 48 tiring days? On the last day of the climb, they didn9t start until 9 p.m. Climbing in the dark was challenging for Eric,s friends, but it wasif t for Eric. Due to his blindness, he has been climbing that way his whole life. In the end, they reached the top of Mt.Qomolangma. Though they were completely exhausted, they were very proud of themselves? Instead of feeling tired, they were happy?

237words

八、阅读短文,根据短文内容冋答问题。(共10分,每小题2分)

On Friday, January 14, 2005, my cousin, Kara Rose, came into the world? She looked perfectly healthy from the outside, but on the inside, the doctors had failed to discover a serious problem? She often had trouble breathing and then turned blue. The doctors found that Kara had been born without part of her heart. They didn^t think she would live long enough to leave the hospital. When she was four days old, she had her first operation? My family stayed together during this hard time, hoping everything would turn out for the best. I was also anxiously hoping the doctors would be able to make her life longer.

Kara's strength and determination (决尤、)to live were strong. Eventually, she could go home? We all waited patiently for new technology that could give Kara a new heart. When she was eighteen months old, her parents took her to a famous surgeon who performed a series of operations. There was no guarantee she would make it through the operation, but she succeeded?Kara grew stronger every day, and it was not long before she was well enough to be around people. She had an amazing character and always wore a sweet smile. When she fell asleep against my body, happy and content, I realized how valuable life really is. As I took her in my arms with her warm breath against my neck, I decided to live every day of my life to the fullest?This child who is 15 years younger than I has gone through more suffering and pain than I ever have? I admire her strength and determination. Kara has taught me that no matter how bad things seem, they can work out in the end. Knowing this small, beautiful child has made me a stronger person, I now believe that difficulty can be beaten.

65.Did Kara Rose come into the world on January 14, 2005?

66.Why did she often have trouble breathing?

67.When did she have her first operation, four days old or eighteen months old?

68.What did the writer realize when Kara fell asleep against her body?

69.What does the writer want to tell us?

九、完成句子(共10分,每小题2分)

70.学习压力令我们透不过气,是时候放松一下了!

Work pressure makes us feel down. _________________________to relax!

71我一收到你的电子邮件,就告诉你妈妈。

F11 tell your mother about it _________________________________ I get your E-mail.

72.这篇文章很容易,大家都能读懂。

The article is ____________________________ everybody can understand it.

73.好的教师应该既不太严厉乂不太软弱。

A good teacher must be __________________________________________ .

74.他服药以防止感冒恶化。

He took medicines ________________________________________

测试六

21. —Are these books _______ , Dad?

—Yes. Um looking for them. Thank you.

A. yours B? his C. hers

22. New York is a good place to visit ______ May or Decembe匚

A. on

B. in

C. at

D. theirs D. for

23. — Can you play football?

—Yes, _______ I can't play it very well.

A. and

B. or

C. so D .but

24. Excuse me, si匚I bought the shoes yesterday, but they are in different sizes. One is Size 37 and

A. other

B. another

C. the other

D. others

is Size 38.

25. I'm alone at home? My parents ______ Shanghai on business and will be back next week.

A. have been to

B. have gone to C?has been to

26.—Can I speak to Mr. Black?

-I am sorry, but he ______ a n important meeting now?

A. has

B. had

C. will have

27.All the students in my class _____ h ard-work in g.

A. am

B. is

C. are

D. has gone to D. is having D. be

2& Grandpa is sleeping? You _____ p lay the guitar.

A. needn5t

B. mustn5t

C. wouldn9t

D. won^t

29.一Don" always make Tony _____ this or that. He is already a big boy.

—Maybe you9re right.

A. do

B. done

C. to do

D. doing

30.―_______ d o you visit your grandparents?

Once a week?

A. How soon

B. How often

C. How far

31 ? I _____ an English book when the bell rang.

A. read

B. will read

C. am reading 32? Life today is _____ than that in the old days?

A. good

B. best

C. better

33? Difficult work ______ e asy if you do it very carefully?

A. become

B. became

C. will become

34.My e-mail _______ t o you last night. Have you received it yet?

A. sends

B. sent

C. is sent

35.-It's raining. Maybe we can go out when the rain stops.

—But do you know _____ ?

A. when the rain will stop

B. when the rain stopped

C. when will the rain stop

D. when did the rain stop

六、阅读理解(共26分,每小题2分)

D. How long

D. was reading D. the best

D. has become

D. was sent

Choosing which university to go to is one of the biggest and most expensive decisions youTl have to make. Here are some things to consider.

Work out whether you want to study at home or abroad? If youle going abroad, first you have to think of the cost of your study, living expenses and the flight tickets.

Decide which courses interest you and find out more about who will teach the course? Try to collect information from past students ?Check out the ability of the teachers. Study the key subjects in the course and compare them with the ones from other universities. Find out if the university offers work for practice or exchange programs for the course you're interested in.

Check what the university's policy (政策)is for switching (转换)courses in the university or changing universities.

Many universities now have websites. Use them as a chance to ask the universities all the questions you want.

Visit education exhibitions(展览会).YouUl be able to find out more by talking to teachers from different universities, and they can be found easily at the same time?

Go to see the university if you can. If this is not possible because of the cost, do some research and find out where the university is as well as the environment around it. It shouldift be too hard to do that with programs like Google Maps?

51.How many suggestions are mentioned in the passage?

A.Six.

B. Seven.

C. Eight.

D. Nine.

52.According to the passage, if you9re going to study abroad, what should you do first?

A.Think of the cost?

B. Find out a university.

C.Choose the course?

D. Check the teachersability?

53.Which is the easiest way to get to know different universities?

A.Check the website?B? Visit education exhibitions.

C. Use Google Maps.

D. Go to see the universities.

c

In March last year, the car I was driving was involved (卷入)in a serious accident with another car on a country road? I soon found myself at the center of a crazy activity, in the middle of doctors, policemen and passers-by. A large can opener was used to get me out of my broken car and into an ambulance(救护车).

Over the next eight hours, I was taken to hospital, tested with X-ray and diagnosed (诊断)with a broken neck. Knowing that Fd been saved from death encouraged me throughout the long wait in the hospital and helped me deal with the countless visitors? Only after I was sure that the last friend had left, could I direct my energies inwards. Flying in and out of my line of vision during my hospital stay was the Red Cross lady, a gentle presence in white who, from time to time, came in to offer cups of tea. After the visitors had gone, she came up to me and checked if I was all right.

I found myself telling her everything about the accident, my fears for my family as a result of my injuries (伤)—about my whole life. While I waited for an ambulance to take me to another hospital, she stood by my bed and held my hand as I off-loaded all the emotion Fd hidden from my family. She listened, quiet and patient.

Even now, the knowledge that I have the ways to get in touch with her provides me with great comfort. I look forward to a day in the near future when my angel (天彳吏)and I can meet again, in happier situation.

In times of danger, faith (JX^) can encourage us. My faith in human nature called back by the kindness of a stranger has helped to ease my journey back to health.

54? What happened to the writer in the accident?

A.She was hit by a car.

B. She was held in her car.

C. She was caught by the police?

D. She was thrown into a can.

55.The underlined word ^off-loaded55 means _____________ i n the passage?

A.spoke out

B. put down C? showed off D. turned over

56.The most important result of the Red Cross lady's faith was that ________ ?

A. the writer got well more quickly B? the writer missed her very much

C. the writer became much happier

D. the writer had her own faith back

七、阅读短文还原句子(共8分,每小题2分)

高一数学指数函数知识点及练习题

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高三政治第三课练习题 班级学号姓名 一、选择题: 1.下列关于中国共产党性质的表述,正确的是 ①.中国共产党的最高理想和最终目标是实现共产主义 ②.中国共产党是中国工人阶级的先锋队,也是中国人民和中华民族的先锋队 ③.中国共产党领导地位的确立是历史和人民的选择 ④.中国共产党对国家和社会生活的领导主要是政治、思想和组织领导 A.①②③B.①②C.①③ D.②③④ 2、“各级党委要全面分析和正确判断经济社会发展面临的形势,确定经济社会发展的基本思路和工作重点,加强和改进对经济社会重大事务的综合协调,把握社会主义现代化建设大局。”这段话说明 A.中国共产党是中国工人阶级的先锋队 B.中国共产党执政的实质是大力发展生产力 C.中国共产党对国家的领导方式是经济领导 D.中国共产党是中国特色社会主义事业的领导核心 3.中共长沙市委十届五次全会审议通过了《中共长沙市委关于制定长沙市国民经济和社会发展第十一个五年规划的建议》,把“显著增强自主创新能力”放在实施科教兴市战略的首位。这体现了党 A.思想领导 B.政治领导 C.行政领导 D.组织领导 4.中国共产党是社会主义现代化建设事业的领导核心,面对当今国际国内的新形势,中国共产党必须始终坚持 ①.科学执政、民主执政、依法执政 ②.权为民所用、情为民所系、利为民所谋 ③.政治领导、经济建设、公共服务的职能 ④.思想建设、组织建设、作风建设 A.①②③B.①②④ C.①③④ D.②③④ 5.在党的十六届五中全会代表中,有工人、农民、军人、知识分子,还有一定数量的民营企业家。这说明 ①.中国共产党是工人阶级的先锋队,同时也是中国人民和中华民族的先锋队 ②.中国共产党有着广泛的群众基础 ③.中国共产党最广泛最充分地调动一切积极因素 ④.中国共产党的阶级基础已经发生改变。 A.①②③④ B.①②③ C.②③D.①③④ 6、中共中央建议将“国家建立健全同经济发展水平相适应的社会保障制度”和“公民的合法私有财产不受侵犯”等内容写入宪法。这体现了中国共产党 ①.立党为公、执政为民的根本目标②.经济立法职能 ③.全心全意为人民服务的宗旨④.解放思想、实事求是的思想路线 A.①③ B.②④C.①③④D.①②③ 中共中央政治局向中央委员会报告工作,讨论研究完善社会主义市场经济体制问题和修改宪法部分内容的建议。据此回答7-8题。

指数函数练习题

指数函数练习题

指数与指数函数练习题 姓名 学号 (一)指数 1、化简[ 3 2 ) 5(-] 4 3的结果为 ( ) A .5 B .5 C .-5 D .-5 2、将 3 2 2-化为分数指数幂的形式为 ( ) A .2 12- B .3 12- C .2 1 2-- D . 6 52- 3. 3 334)2 1 ()21()2()2(---+-+----的值 ( ) A 4 3 7 B 8 C -24 D -8 4(a, b 为正数)的结果是_________. 5、 3 2 1 41()6437 ---+-=__________.

6、 ) 3 1 ()3)((65 613 1212132b a b a b a ÷-=__________。 (二)指数函数 一. 选择题: 1. 函数x y 24-=的定义域为 ( ) A ),2(+∞ B (]2,∞- C (]2,0 D [)+∞,1 2. 下列函数中,在),(+∞-∞上单调递增的是 ( ) A ||x y = B 2 y x = C 3x y = D x y 5.0= 3.某种细菌在培养过程中,每20分钟分裂一次(一个分 裂为两个)。经过3个小时,这种细菌由1个可繁殖成( ) 511 .A 个 512 .B 个 1023 .C 个 1024 .D 个 ax x f =)(x a x g =)(的图

增,则该厂到2010年的产值(单位:万元)是( ) n a A +1(.%13 ) n a B +1(.%12 ) n a C +1(.%11 ) n D -1(9 10 . %12 ) 二. 填空题: 1、已知)(x f 是指数函数,且25 5 )23(=-f ,则=)3(f 2、 已知指数函数图像经过点P(1,3)-,则(2)f = 3、 比较大小12 2- 1 3 2- , 0.32()3 0.22 ()3 , 0.31.8 1 4、 3 1 1 2 13,32,2-?? ? ??的大小顺序有小到大依 次 为 _________ 。 5、 设10<x x x x a a 成立的x 的集合是 6、 函数 y = 7、 函数 y = 8、若函数1 41 )(++=x a x f 是奇函数,则a =_________ 三、解答题:

公共基础知识科技常识练习题

科技常识练习题 1. (单选题)以下属于低碳经济的做法是()。 A. 秸秆粉碎沤沼一沼渣肥田一反哺农田作物 B. 发电厂对煤炭燃烧后产生的气体进行脱硫 C. 许多废弃物不填埋或焚烧,而是回收利用 D. 采用空气源热能或者地下水循环调节室温 2. (单选题)低碳经济的起点是()。 A. 技术创新 B. 统计碳源和碳足迹 C. 制度创新 D. 发展观的改变 3. (多选题)下列符合低碳经济要求的是()。 A. 无纸化办公 B. 大力发展公共交通 C. 减少使用一次性用品 D. 步行或骑自行车上班 E. 开私家车上班 4. (多选题)下列关于低碳经济的说法,正确的是()。 A. 遵循可持续发展理念 B. 减少煤炭石油等消耗 C. 寻找新的可利用能源 D. 增加使用天然气能源 5. (单选题)下列生活方式中不符合低碳经济要求的是()。 A. 建筑中使用中空玻璃 B. 电冰箱中保持较多的霜 C. 步行或骑自行车上班 D. 使用太阳能热水器 6. (单选题)下列关于PM2.5的说法不准确的是()。 A. PM2.5是指环境空气中空气动力学当量直径小于或等于2.5微米的颗粒物 B. PM2.5源于一次颗粒物排放,也源于二次颗粒物排放 C. 当前,以臭氧(O3)、PM2.5和酸雨为特征的区域性复合型大气污染日益突出 D. 我国PM2.5监测的时间表即将正式出台 7. (单选题)霾和雾的区别在于()。 A. 水汽含量的大小 B. 气象现象的颜色 C. 行程消散的时间 D. 细小颗粒物的成分 8. (多选题)下列关于“雾霾”说确的是()。 A. 雾霾天气少开窗 B. 雾和霾没有区别

C. 机动车尾气的排放是雾霾天气形成的原因之一 D. 二氧化硫、氮氧化物和可吸人颗粒物这三项是雾霾主要组成 9.(单选题)2011年11月,环保部发布了《环境空气PM10和PM2.5的测定重量法》,由于提出了PM2.5的概念,引起了人们的广泛关注。下列关于PM2.5的说法有 误的一项是()。 A. PM2.5是指大气中直径大于或等于2.5微米的颗粒物 B. PM2.5也称“可入肺颗粒物” C. 它的直径还不到人的头发粗细的1/20 D. PM2.5在地球大气成分中含量很少,但是它对空气质量和能见度等有重要的影响 10. (单选题)下列关于雾霾的说法,不正确的是()。 A. 雾霾是“雾”和“霾”的组合词 B. 雾霾常出现在城市地区 C. 雾霾是特定气候条件与人类活动相互作用的结果 D. 雾霾即是PM2.5 11. (单选题)下列对世界科技革命的说法不成立的是()。 A. 15世纪以来,世界科技大致发生了五次革命 B. 世界科技革命包括两次科学革命和三次技术革命 C. 第五次科技革命包括电子技术革命和信息技术革命两个阶段 D. 目前,信息技术革命尚未结束 12. (单选题)下列选项与第三次科技革命密切相关的是() A. 燃机车 B. 网络购物 C. 按揭消费 D. 潮汐发电 13. (单选题)在人类社会的发展史上,经历了三次科技革命,其标志为()。 A. 蒸汽机的发明、纺织机的发明、电子计算机的发明 B. 蒸汽机的发明、电力的发明、电子计算机的发明 C. 蒸汽机的发明、电力的发明、电子计算机的发明和原子能的发明和使用 D. 蒸汽机的发明、纺织机的发明、原子能的发明和使用 14. (单选题)在第二次科技革命中,导致汽车工业和石油工业兴起的发明是 ()。 A. 蒸汽机 B. 电动机 C. 汽轮机 D. 燃机 15. (单选题)过去5个世纪发生了5次科技革命。这些革命出现的顺序是()。

2020-2021备战中考化学二模试题分类汇编——流程图综合及答案解析

一、中考初中化学流程图 1.高纯氧化铁可作为现代电子工业的材料,以下是硫铁矿烧渣(主要成分为Fe 2O 3、FeO 、SiO 2)为原料制备高纯氧化铁(Fe 2O 3)的生产流程示意图:[(NH 4)2CO 3溶液呈碱性,40℃以上时(NH 4)2CO 3分解]。 (1)实验室中,操作Ⅰ、操作Ⅱ用到的玻璃仪器玻璃棒、_______、烧杯等。 (2)写出通入CO 后所发生反应的化学方程式_______(任意写一个)。 (3)在该生产流程中当加入(NH 4)2CO 3后,应该控制的条件是 ______ 。 (4)滤液Ⅱ中可回收的物质在农业上可做 _____ (5)写出在空气中煅烧FeCO 3的化学方程式_____。 【答案】漏斗 3CO+Fe 2O 3高温2Fe+3CO 2(或FeO+CO 高温Fe+CO 2) 温度控制在40℃以下(或控制溶液的酸碱度) 氮肥或肥料 32 2324FeCO +O 2Fe O +4CO 高温 【解析】 【分析】 【详解】 (1)操作Ⅰ、操作Ⅱ都是将固体与液体分开,操作为过滤,过滤操作用到的玻璃仪器玻璃棒、漏斗、烧杯等。 (2)高温条件下,氧化铁和一氧化碳反应生成铁和二氧化碳,氧化亚铁和一氧化碳反应生成铁和二氧化碳,反应的化学方程式为:Fe 2O 3+3CO 高温2Fe+3CO 2, FeO+CO 高温Fe+CO 2。 (3)因为40℃以上时(NH 4)2CO 3分解,因此加入(NH 4)2CO 3后,温度控制在40℃以下;(NH 4)2CO 3溶液呈碱性,所以要控制酸碱性。

(4)滤液Ⅱ中可回收的产品中含有硫酸铵,在生活中可作为氮肥。 (5)在空气中煅烧FeCO 3,是碳酸亚铁和氧气在高温下生成二氧化碳和氧化铁,对应的化学反应方程式4FeCO 3+O 2 高温2Fe 2O 3+4CO 2。 故答案为:(1)漏斗; (2)3CO+Fe 2O 3高温2Fe+3CO 2(或FeO+CO 高温Fe+CO 2); (3)温度控制在40℃以下(或控制溶液的酸碱度); (4)氮肥或肥料; (5)4FeCO 3+O 2 高温2Fe 2O 3+4CO 2。 2.高纯氧化铁(Fe 2O 3)又称“引火铁”,可作催化剂,在现代工业上有广泛应用前景。以下是用赤铁矿(含少量 SiO 2 等杂质)为原料,制备高纯氧化铁的生产流程示意图。 已知:氨水呈碱性(主要成分NH 3· H 2O 是一种碱);(NH 4)2CO 3溶液呈碱性,40℃以上易分解。 (1)写出高温时赤铁矿中的Fe 2O 3 与 CO 发生反应的化学方程式_____。 (2)①和②处的操作是_____,这个操作中玻璃棒的作用是_____。 (3)加入(NH 4)2CO 3 后,该反应必须控制的条件是_____;(NH 4)2CO 3与FeSO 4 发生复分解反应而生成FeCO 3,则②处反应的化学方程式为_____。 (4)用蒸馏水洗涤FeCO 3 的目的是除去表面附着的杂质,洗涤干净的标志是:取最后一次洗涤液,向其中加入适量的 BaCl 2 溶液,无_____(填现象)产生,即为洗涤干净。 【答案】232Fe O +3CO 2Fe+3CO 高温 过滤 引流 温度控制在40℃以下 ()()43434422NH O +FeSO =FeC +O NH C SO ↓ 沉淀 【解析】 【分析】 一氧化碳和氧化铁高温生成铁和二氧化碳,铁和稀硫酸反应生成硫酸亚铁和氢气,碳酸铵和硫酸亚铁反应生成碳酸亚铁和硫酸铵。 【详解】 (1)高温时赤铁矿中的Fe 2O 3 与 CO 发生反应是一氧化碳和氧化铁高温生成铁和二氧化

平舌翘舌练习,看这个就够了

如何区别平舌音和翘舌音? (1)利用声旁类推。汉字大部分是形声字,我们可利用形声字的声旁类推。以下汉字作声废寝忘食的字,绝大多数是翘舌音:中、争、正、主、生、长、章、者、史、申、只、式、士、寿、受、止、周、卓、直、占、垂、朱、如、至、少、丈、专、成等。以下汉字作声旁的字,绝大多数是平舌音:宗、才、卒、叟、采、zun尊、兹、司、曹、仓、匝、子、曾等。 (2)记少不记多。常用字中,zh作声母的字比z作声母的字约多两倍,只记z作声母的字就省事多了。 (3)形声字中声旁读d,t,或虽不读d、t,但声旁与它们两个声母相关的字,绝大多数是翘舌音。 (4)利用声韵配合规律。如韵母ua、uai、uang只有与翘舌音相拼,不与平舌音相拼,所以断定“庄、揣、创”等字一定是翘舌音。[解题过程] 下面着重介绍一下其中平舌音和翘舌音练习。因为不少人,尤其是南方人,在平舌音和翘舌音的区分和发音方面,常常弄不清楚,发不准。问题主要出在z、zh不分,c、ch不分,s、sh不分。 2、下面提出两个解决这个问题的主要方法: 第一,选择一些字、词进行对比练习和组词练习,以读准其声母,并辨音记词,提高区分能力。 (1)字的对比练习。训练要求是,对比平翘舌声母,再分别组词作朗诵练习。 平——翘;滋——之字——只咋——扎总——中嘴——追增——

正尊——准藏——张 (2)词的对比练习。训练要求是:对比平翘舌声母,再分别用每个词说句话。 平——翘:自主——支柱栽花——摘花木材——木柴推辞——推迟私人——诗人司机——实际 (3)、组词练习。训练要求是:用平翘舌音组词,辨音记词,再用每个词说句话。 Z——zh在职杂志栽种增长自重宗旨 Zh——z渣滓张嘴种族长子沼泽振作 C——ch财产草场猜出采茶彩绸餐车 Ch——c车次场次蠢才纯粹差错陈词 S——sh三十丧生扫射私塾四十四声 Sh——s哨所山色深思神速上诉深邃 第二,选择一些绕口令,分清平翘舌音,由慢到快反复练习。 平舌音:苏、澡、洒、岁、栽、村、醉、散、错、扫、赛、紫、聪、总、才、字、所、擦、尊、司、砸、艘、祖、餐、糟、粗、采、速、 翘舌音:争、枝、软、梳、梢、耍、植、站、诗、首、处、认、事、张、照、晒、收、装、值、霜、朝、然、眨、如、主、失、专、双、舌、炒、展、蜘、蛛、蝉、池、柔、珠、翅、睁、时、伸、潮、湿、虫、阵、蛇、抄、拾、摔、重、纯、熟、尝、石、使、称、柱、秤、沉、止、瘦、丑、战、士、助、哨、顺、杀、冲、市、吹、祝、厂、申、诚、实、招、施、狮、整、盛、煮、猪、初、转、治、啄、摘、程、砖、查、世、创、追、闯

指数函数、对数函数、幂函数练习题大全(标准答案)

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