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江西省吉安一中2013届高三最后一模英语

江西省吉安一中2013届高三最后一模英语
江西省吉安一中2013届高三最后一模英语

英语试卷

第Ⅰ卷(共115分)

第一部分:听力

第一节((共5小题:每小题1.5分,满分7.5分)

听下面5段对话。每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。每段对话仅读一遍。

1. Who might take the man to the concert tonight?

A. The woman.

B. Betty.

C. Not mentioned.

2. What does Maria think of studying English abroad?

A. It?s useful and necessary.

B. It?s useful but expensive.

C. It?s useless and expensive.

3. When does the shop open on Wednesdays?

A. At 10:00 a.m.

B. At 9:00 a.m.

C. At 8:00 a.m.

4. What does the woman ask the man to do?

A. Help her.

B. Go on with his work.

C. Attend a meeting.

5. Why is Frank happy today?

A. He is always happy.

B. He will buy an MP4 player.

C. His purchase was worthwhile.

第二节:听下面5段对话。每段对话后有几个小题,从题中所给出的A、B、C三个选项种选出最佳选项,并标在试卷的相应位置。听每段对话前,你将有时间阅读各个小题,每小题5秒钟;听完后,各小题给出5秒钟的作答时间。每段对话读两遍。

听第6段材料,回答6至8题。

6. Who will be the last person to know about the party?

A. The woman?s brother.

B. The man?s brother.

C. The man?s sister.

7. Why is there a party room still available?

A. A guest has just cancelled his reservation.

B. It is not the busy season.

C. The party room is too big.

A. At 8:00 p.m.

B. At 7:30 p.m.

C. At 7:00 p.m.

听第7段材料,回答9至11题。

9. What did the woman do yesterday?

A. She visited the man at home.

B. She visited the man at his company.

C. She had a meeting.

10. Who is Kathy?

A. The man?s secretary.

B. The man?s wife.

C. The woman?s friend.

11. How many guests will the man have tonight?

A. 2.

B. 3.

C. 4.

听第8段材料,回答12至14题。

12. For whom does the man want to buy the gift at first?

A. His wife.

B. His girlfriend.

C. His sister.

13. What does the woman show to the man?

A. A lovely necklace.

B. A silver ring.

C. A beautiful suit.

14. How much will the man pay in total?

A. $120.

B. $100.

C. $ 60.

听第9段材料,回答15至17题。

15. What does the man get from the woman?s car?

A. Her license.

B. Her cell phone.

C. Some medicine.

16. What does the woman ask the man to do?

A. Call the police.

B. Take her to the hospital.

C. Repair the car.

17. Where will the man go next?

A. The police station.

B. The hospital.

C. A nearby house. 听第10段材料,回答18至20题。

18. What is the main purpose of introducing the new tests?

A. To inform parents and schools.

B. To pick out good students.

C. To compare teachers.

A. 1%.

B. 10%.

C. 20%.

20. What is the main reason for troublemakers? bad performance at school?

A. Parents.

B. Teachers.

C. The society.

第二部分:英语知识运用(共两节,满分45分)

第一节:单项填空(共15小题,每小题1分,满分15分)

从A、B、C、D四个选项中,选出可以填入空白处的最佳选项。

21. —It is said in the brochure that the hotel is a comfortable one with a wonderful sea view.

—_________. In fact, it is half a mile away from the sea. It is really noisy.

A. That?s their story

B. You?ve got it.

C. Come off it

D. It?s my pleasure.

22. With the help of the new teacher, _________ number of the students in my class who have made _________ great progress in English up to now is far larger.

A. the; the

B. a; a

C. the; /

D. a; /

23. —Oh, Mom, just a few minutes.

—Hurry up, Harry, or by the time you pack your belongings, the flight _________!

A. has left

B. will have left

C. had left

D. will be leaving

24. _________your watch five minutes ahead is an effective way to avoid being late.

A. Set

B. Having set

C. Setting

D. Being set

25. To forbid the cheating strictly in this important exam, the authorities have released a rule that students _________ bring any reference books and stationery into their classrooms.

A. will not

B. shall not

C. might not

D. need not

26. Clothing made of man-made materials has advantage over _________ made of natural ones like cotton, wool or silk.

A. one

B. it

C. that

D. the ones

27. Due to the policy of free highway fees on major holidays, too many passenger cars are trapped on the highways, causing heavy traffic jams, some even _________ for several hours.

A. held up

B. broken up

C. taken up

D. given up

28. The organizers promise _________ wins the first prize a chance to go abroad.

29. —I?m fed up with these naughty boys!

—Maybe we can find a new direction for their _________ energies. How about a football game?

A. abundant

B. abnormal

C. aggressive

D. alternative

30. Recent accidents, _________ forty-five people lost their lives, have renewed concerns over the safety of overnight buses.

A. that

B. where

C. which

D. when

31. Such _________ the case, I couldn?t help but _________ him.

A. being; support

B. is; to support

C. has been; supporting

D. be; supported

32. I left university with a good degree in English Literature, but no _________ of what I wanted to do.

A. sense

B. difference

C. hope

D. chance

33. “Mary looks hot and dry”“So _________ you if you had so high a fever.”

A. do

B. are

C. will

D. would

34. It is necessary for children to exchange ideas with parents from time to time so that the generation gap between parents and children can be _________.

A. released

B. replaced

C. narrowed

D. disappeared

35. Steps must be taken _________ this kind of disaster will never happen again.

A. so that

B. even if

C. because

D. as

第二节完形填空(共20小题;每小题1.5分,满分30分)

阅读下面短文,从短文后各题所给的四个选项(A、B、C和D)中,选出最佳选项。

The summer of 1975 I?d just graduated from college in Southern California and received

a Ford Car for a 36 present. I had my first job, in Los Angeles. One Sunday night, thinking myself a very 37 gown-up, I 38 my uncle?s place in South Laguna after

a visit, 39 admitting to him that I had less than an eighth of a tank of gas and no

40 to buy more on the way to L.A. I pulled onto the Pacific Coast Highway and watched the 41 move down as I headed north. When the engine started giving off strong smells,

I 42 into a gas station. There was no self-serve then; there were no credit cards, no ATMs.

I 43 the guy at the station. I could write him a check for gas, I said, or I could

44 in my car and try to walk to a town with a 45 the next morning. As he was informing

the next 46 . The driver—a thin, plain, middle-aged guy—overheard the tail end of my 47 request. As the attendant went to 48 him, he nodded at me. “ 49 her tank first,” he said.

“Really?”I said. 50 bloomed. “Oh, thank you. Thank you. But please. I just need two 51 worth. I just need to get home.”

“Fill it,” he 52 to the attendant. Then he turned to me, “You?ll do the same one day, for someone else.”

I keep looking for someone unlucky, hoping to save her 53 on the road. Meanwhile, in case she never shows up, I try for other acts of 54 kindness. That quiet driver is always at the pump a few feet away, instructing the attendant to fill mine 55 .

36. A. graduation B. birthday C. Christmas D. wedding

37. A. independent B. honest C. polite D. confident

38. A. reached B. left C. witnessed D. took

39. A. after B. without C. on D. by

40. A. time B. chance C. place D. cash

41. A. sun B. window C. needle D. clock

42. A. jumped B. walked C. looked D. pulled

43. A. seized B. pushed C. begged D. warned

44. A. sit B. sleep C. break D. fight

45. A. bank B. station C. hotel D. restaurant

46. A. door B. garage C. pump D. town

47. A. planned B. failed C. pretended D. suggested

48. A. serve B. attack C. charge D. treat

49. A. Open B. Start C. Fill D. Heat

50. A. Anxiety B. Nervousness C. Caution D. Hope

51. A. miles? B. hours? C. liters? D. dollars?

52. A. explained B. repeated C. threatened D. ordered

53. A. night B. car C. gas D. money

55. A. immediately B. quickly C. next D. first

第三部分:阅读理解(共20小题,每小题2分,满分40分)

阅读下面短文,从每题所给的A、B、C、D四个选项中,选出最佳选项。

A

It was blazing hot, just like most July days. I stepped into a tiny ice-cream shop to cool off with a chocolate ice-cream. It was an old woman bent over a table near the door. Her back was so badly twisted that her face nearly touched the tabletop. I sat down facing her a couple of tables away.

“Poor woman,” I thought, “What does she get out of life? Why God let people live so long past their prime?”

As I thought, another aged lady entered the shop and sat down with her. Soon the two of them were talking about childhood days. They talked of how little the shop had changed in 70 years... In minutes, the two of them were trembling with laughter.

I looked again at the first woman, then in the mirror on a nearby wall, catching a picture of myself. I was wearing a dirty shirt. She was well dressed in white, her hands sparking with gold rings. I was sad. She was laughing, smiling. I was putting the pieces of my life together. She had millions of wonderful memories to recall. I sat alone. She was sharing the day with a good friend. I was secretly worried about getting old. She was old, but it wasn?t hurting her.

As I left the shop, I thought of my foolish question about God letting people live past their prime. Why, that woman was more alive, more sensitive to life than I was. Age has not bent her spirit.

56. From the passage we know that the ice-shop _________.

A. changed a lot in the past

B. had only a couple of tables

C. started its business 70 years ago.

D. had only women shoppers.

57. What is the meaning of the underlined word “prime” in this passage?

A. miserable life

B. wonderful experience

C. long career

D. time of great strength, beauty, vigor(活力)

58. The writer implies all of the following except that _________.

A. the old lady had lived a full and satisfying life

B. the writer had more problems than the old lady

D. the old lady had learned to enjoy the simple things in life

59. Which of the following is the conclusion the writer made about the old lady?

A. She was more alive and sensitive to life than the writer.

B. She considered the young man pitiable.

C. She was to be pitied for her old age.

D. People should not be allowed to live when they are too old.

60. Which of the following is the main idea of the passage?

A. To tell us the life of old people

B. To show that old age does not mean being short of spirit.

C. To show the difference between the old and the young.

D. To make the reader have a pity on the old people.

B

Clothes can make phone calls, play music, dial your pal?s number, keep you warm during cold weather and operate your computer?

This is not a fantasy. A British company, called Electrotextiles, has created a wide range of clothes—clothes that have minds of their own! Scientists, working for the company, have invented a kind of fabric that can be blended(混合) with flexible electronic materials to create intelligent clothing. The result are electronic garments.

If you think the wearer has to be wired to different devices, think again. These designer clothes are wire-free, soft to touch and washable! Like any electronic device, these high-tech clothes have to be powered. Currently, a tiny nine-volt battery serves the purpose. But the researchers hope that in the near future the clothes will generate electricity by using body heat. These clothes are 100 percent shock proof, they say.

The Electrotextiles team has also created the world?s first cloth keyboard. This keyboard can be sewn into your trousers or skirt. To use this device, you will have to sit down and tap on your lap! These …lap-tap?gadgets(器具) are all set to take over laptop computers!

Another useful garment is the shirt-cum-mobile phone. This handy invention enables drivers to chat comfortably with others at the wheel! Other popular electronic wear include the denim(牛仔布) jacket with flexible earphones sewn into the hood(风帽) and the electronic ski jacket with a built-in heater. The ski jacket is also programmed to send signals to a satellite. This technology is known as global positioning system and

Having completed the cloth keyboard, scientists have already started to work on a new project—a necktie that can be used as a computer mouse. What is the next? Do you have any idea?

61. The electronic garments are similar to other electronic devices in that _________.

A. they feel smooth and soft

B. they use electricity as power

C. they can be washed in water

D. they are made from flexible materials

62. How will researchers improve these high-tech clothes?

A. Body heat will be used as power.

B. The wearer will not get shocked.

C. A tiny nine-volt battery will work.

D. They will get charged automatically.

63. What does the underlined phrase “This handy invention” in Paragraph 5 refer to?

A. The laptop computer.

B. The electronic ski jacket.

C. The shirt-cure-mobile phone.

D. The world?s first cloth keyboard.

64. If you are going on a ski adventure, which device do you need?

A. The cloth keyboard.

B. The electronic ski jacket.

C. The necktie to be used as a mouse.

D. The denim jacket with earphones.

65. The main purpose of the text is _________.

A. to advertise for an English company

B. to predict the future trend of science

C. to show how rapidly science develops

D. to introduce some intelligent clothing

C

Suppose you want to go abroad and learn about the foreign exchange in culture in different countries. Here is some information you may need.

_________.

C. anything from $3,500

D. no more than $7,000

67. Which organization held more foreign exchanges?

A. EF Foundation

B. AFS

C. Rotary International

D. SCCE

68. The students who refer to both the good and bad times as an exchange student include _________.

A. Susan Lane and Sara Small

B. Linda Marks and David Links

C. Tom Jennings and Linda Marks

D. Susan Lane and Tom Jennings

69. As a result of his experience in the foreign exchange program Tom Jennings learnt to become _________.

A. independent and adaptable

B. determined and independent

C. selfish and defensive

D. defensive and determined

70. If a student wanted to take part in a foreign exchange program, but had not enough money, then the best place would be _________.

A. Iceland and America

B. Thailand and France

C. Germany and Iceland

D. Germany and Thailand

D

Of the thousands of different kinds of animals that exist in the world man has learned to make friends with an enormous number. Some are pets, and offer him companionship; some give protection, and some do hard work which man cannot do for himself. Dogs, which serve man in all three capacities, are found in various species in all countries of the world. The Husky can live in the cold polar regions, and the Saluki is at home in the hottest parts of Central Africa. The inhabitants of certain countries are dependent for their very lives on the camel. In the West Indies the little donkey, strong and sure-footed, carrying heavy loads even in mountainous places, is a familiar sight.

Trained and tamed for many generations, domestic animals are not accustomed to roaming in search of food and shelter. They look to their masters to provide for their needs, and as long as these are supplied, they are content to do what their masters require.

All domestic animals need proper food. It must be suitable for them, sufficient in quantity, fresh and clean. Some people feed a pet dog or cat on odds and ends of table scraps(剩饭), and then wonder why the animal seems tired and dull. The quantity of food depends on the size of the animal and the amount of exercise it takes. Overfeeding is

animal is to maintain good health.

Even well cared for animals may sometimes fall ill. If this happens, the wise master seeks the best advice he can get. All sorts of medicines and treatments are available for sick animals, and in some countries organizations exist to provide them free or at a cheap price. Useful, friendly, hardworking animals deserve to have some time, money and attention spent on their health.

71. What main idea does the author want to convey in the first paragraph?

A. There exists thousands of species of animals in the world.

B. Man came to establish a close relationship with a number of animals.

C. In some regions a donkey seems to be a very useful beast.

D. An animal will be useless unless domesticated.

72. When an animal doesn?t get enough food, it will probably _________.

A. refuse to obey its master

B. immediately fall ill

C. require its master to offer some food

D. seek for food on its own

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

A. They can act as friends, guards, and servants to man.

B. They have great adaptation for the environment.

C. There live a great variety of species of dogs on the globe.

D. The Husky and the Saluki are the strongest species ever known in the world.

74. To keep a domestic animal physically fit, its owner is advised _________.

A. not to hesitate to spend enormous amount of money on it

B. to pay attention to its proper feeding

C. not to allow it to take excessive amounts of exercise

D. to join some sort of pet-keeping organizations

75. Which of the following would be the best title for this passage?

A. Domesticated Animals—Man?s Best Friends.

B. Proper Diet—the Road to Health.

C. The Advantages of Raising Domestic Animals.

D. Some Tips on Pet-keeping.

第Ⅱ卷(共35分)

第四部分:书面表达(共两节,满分35分)

第一节:阅读表达(共5小题,每小题2分,满分10分)

continue to undertake to do for children that which only children can do for themselves. Teaching children to read is not passing reading on to them. It is certainly not endless hours spent in activities about reading. Douglas insists that “reading cannot be taught directly and schools should stop trying to do the impossible”.

(2) Teaching and learning are two different processes. _________ in function and in kind. The function of teaching is to create the conditions and the climate that will make it possible for children to devise the most efficient system for teaching themselves to read. Teaching is also public activity. It can be seen and observed.

(3) Learning to read involves all that each individual does to make sense of the world of printed language. Almost all of it is private, for learning is an occupation of the mind, and that process is not open to public observation.

(4) If teacher and learner roles are not interchangeable, what then can be done through teaching that will aid the child in exploring knowledge? Smith has one principal rule for all teaching instructions. “Make learning to read easy, which means making reading

a meaningful, enjoyable and frequent experience for children.”

(5) When the roles of teacher and learner are seen for what they are, and when both teacher and learner fulfill them appropriately, then much of the pressure and feeling of failure for both is eliminated. Learning to read is made easier when teachers create an environment where children are given the opportunity to solve the problem of learning to read by reading.

76. What is the main idea of the passage? ( no more than 8 words)

___________________________________________________________________________

77. Fill in the blank in Paragraph 2 with proper words. (no more than 3 words)

___________________________________________________________________________

78. What does the underlined word “them” in Paragraph 5 refers to? (2 words)

___________________________________________________________________________

79. How does the author develop Paragraph 4? (no more than 4 words)

___________________________________________________________________________

80. What does it mean according to the author if teachers can enable students to develop their own way of reading? (no more than 8 words)

___________________________________________________________________________

第二节:写作(满分25分)

请观察所给的图画并根据你对该图画的理解写一篇英语短文,内容包括:

(1)简要描述图片,并说明该图片所揭露的现象;

(2)分析造成该现象的原因(至少两点);

(3)提出自己的看法。

要求:1. 词数120左右。开头已经给出,不计入词数。

2. 文章中不得提及考生所在学校及本人姓名。

The Internet has long been regarded as a wonderful tool that allows students to gain insight to useful resources and information. However, this is not always the case.______________________

_______________________________________________________________________________

_______________________________________________________________________________

_______________________________________________________________________________

听力:1-5 BBCAC 6-10 BAABB 11-15 BBABB 16-20 BCABA

单选:21-25 ACBCB 26-30 CACAB 31. AADCA

完形填空:36-40 AABBD 41-45 CDCBA 46-50 CBACD 51-55 DBACD

阅读理解:56-60 CDCAB 61-65 BACBD 66-70 BDCAD 71-75 BADBA

阅读表达:

76. Reading ability is something gained rather than taught. /Reading activity is something gained by learning.

77. They differ/They are different/There are differences.

78. The/Their roles

79. By raising and answering questions/quotation.

80. The teaching of reading will be successful./The reading teaching will be a success.

【参考范文】

As is vividly shown in the picture, a boy is happy with the fact that he can depend on the Internet to finish tasks without any difficulty. It mirrors a common phenomenon. Nowadays, students tend to make use of the Internet to gain information they need.

There are some reasons accounting for it. To begin with, students find it convenient to surf the Internet for useful information, where problems can be solved with the help of several clicks. What?s more, there?s no doubt that the pressure to succeed also causes students to turn to computers for accurate answers. As a result, it?s likely that students will lose interest in studying, which is not beneficial to their overall development.

In my opinion, measures must be taken to solve the problem. Firstly, it is vital that students gain confidence in themselves and their abilities while doing tasks. Besides, what teachers and parents should do is encourage students to be creative. Finally, doing tasks independently is of great significance.

江西省抚州市南城一中2020届高三6月模拟考试英语试题

江西省抚州市南城一中2020届高三6月模拟考试 英语试题 第一部分听力(共两节,满分30分) 第一节(共5小题;每小题1.5分,满分7.5分) 听下面5段对话。每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。每段对话仅读一遍。 1. What is the woman probably doing? A. Searching for a box. B. Fixing the shelf. C. Doing some cleaning. 2. What is the restriction for the ride? A. Age. B. Height. C. Weight. 3. What does the woman mean? A. The poetry class is very popular. B. Dr. Robinson is easy to get along with. C. The course will be difficult. 4. What is the man concerned about? A. How he is dressed. B. How big his boat is. C. How he will go sailing. 5. How many times has the man stayed at the hotel before this visit? A. Once. B. Twice. C. Three times. 第二节(共15小题;每小题1.5分,满分22.5分) 听下面5段对话或独白。每段对话或独白后有2至4个小题,从题中所给的A、B、C 三个选项中选出最佳选项,并标在试卷的相应位置。听每段对话或独白前,你将有5秒钟的时间阅读各个小题;听完后,各小题将给出5秒钟的作答时间。每段对话或独白读两遍。

江西吉安一中11-12学年高二下期中考试-地理.

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4、根据各县(市、区)师范定向生招生计划及考生填报志愿,为确保生源质量,今年我市师范定向生最低录取控制线为517分(个别县区计划未录满经申报后可在本县内调剂录取),中考中招改革实验区师范定向生最低录取控制等级为5B2C。 5、为了严肃招生纪律,规范招生秩序,根据省、市有关文件规定,九江一中、市同文中学、市三中重点班不得违规招收“跳档生”。 6、按照《江西省2019年中等学校招生工作有关规定》(赣教考字〔2019〕4号)文件精神,普通高中招生实行限时报到制,各市直重点高中接市中招办录取名单后应及时通知已被录取的学生在报到期限内到校报名,报到期限为7月18日、19日、20日三天时间,以便于建立新生录取数据库并办理学籍转接手续。 凡未按时报到的考生,视为自动放弃录取资格,可参加下一批次一般高中录取或选择外设区市民办普通高中录取。同时,根据文件要求,市直各普通高中学校必须根据市教育局下达的招生计划、录取分数线和收费标准招收学生,不得超计划、降分数、超收费标准违规招生,不得招收已经录取他校的学生。

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江西省八所重点中学2020届高三联考理科综合参考答案 物理 选择题(本大题共8小题,每小题6分,共48分。在每小题给出的四个选项中,第14~18题只有一项符合题目要求,第19~21题有多项符合题目要求。全部选对的得6分,选对但不全的得3分,有选错或不选的得0分。) 题号 14 15 16 17 18 19 20 21 答案 C C D D C AC AD AB 必考题 22.(1) 3.85 (1分) (2) 否 (1分) (3) A (1分) (4) 2F?mkd 2 2mg (2分) 23.(1) D (1分) E (1分) (2)如右图(2分) (3) 4.0 (2分) 0.64 (2分) 68% (2分) 24.解:【解析】(1)带正电粒子从AB 圆弧面静止开始加速到 CD 圆弧面上, 由动能定理得qU =1 2mv 2………………………………………………(2分) 解得v =√ 2qU m …………………………………………………………………(1分) 在圆形磁场中洛仑兹力提供向心力:qvB =m v 2 r ………………………………(2分) 由题意可知:r =R …………………………………………………………………(1分) 所以磁感应强度为B = √2qmU qR …………………………………………………(1分) (2)从P 点被加速的粒子运动轨迹如下图所示: A 1 A 2 S R 2 E R 3

则在磁场中的运动周期T=2πR v ………………………………………………………(2分) 在磁场中的运动时间t1=120 360T=2πR 3v ………………………………………………(2分) 出磁场后到到达探测板所需的时间t2=3R?√3 2 R v ……………………………………(2分) 从O1 点到探测板MN所需的时间 t=t1+t2=(3?√3 2+2 3 π)R√m 2qU ……………………………………………(1分) 25.解:(1)以沿传送带向上为正,A、B在碰撞过程中动量守恒 ?mv0+Mv=m v B+Mv A①……1分 机械能守恒: 1 2mv02+1 2 Mv2=1 2 mv B2?1 2 Mv A2②……1分 代入数据联解①②得v A=0 ;v B=4m/s③……1分(2)从碰后到A达到与传送带相同速度的过程中对A有: μMgcosθ?Mgsinθ=Ma A④……1分 v=a A t A⑤……1分 通过的位移x A=v 2 t A⑥……1分

宁夏银川一中2020届高三第五次月考化学试题 Word版含解析

宁夏银川一中2020 届高三第五次月考理科综合能力测试 化学试题 1.废电池投入的垃圾桶上应贴有的垃圾分类标志是 A B C D A. A B. B C. C D. D 【答案】A 【解析】 【分析】 废旧电池能严重污染水体和土壤,所以废干电池实施集中处理,以防止对水源和土壤的污染,它不属于金属,不能够燃烧,不属于玻璃材料,所以属于有害垃圾。 【详解】A.图示标志为有害垃圾,故A正确; B.图示标志为可回收垃圾,故B错误; C.图示标志为餐厨垃圾,故C错误; D.图示标志为其它垃圾,故D错误; 故选:A。 2.用N A代表阿伏加德罗常数的数值。下列说法正确的是 A. 3.6 g CaO2晶体中阴离子的数目为0.1N A B. 将7.1 g Cl2通入水中,转移电子数为0.1N A C. 标准状况下,11.2 L O2和CO2混合气体含有的氧原子数为N A D. 室温下,1L pH=13的NaOH溶液中,由水电离出的OH-的数目为0.1N A 【答案】C 【解析】

【详解】A.3.6g过氧化钙的物质的量为0.05mol,而1mol过氧化钙中含1mol阴离子,故0.05mol 过氧化钙中含0.05N A个阴离子,故A错误。 B.氯气与水反应为可逆反应,不能进行到底,所以将7.1 g Cl2通入水中,转移电子数小于0.1N A,故B错误; C.O2和CO2均含两个氧原子,标准状况下,11.2 L O2、CO2混合气体物质的量为0.5mol,含有的氧原子数为N A,故C正确; D.在氢氧化钠溶液中,氢原子的物质的量浓度为10-13mol/L,全部来自于水的电离,而水电离出的氢氧根的浓度等于水电离出的氢离子的浓度,故pH=13的氢氧化钠中,水电离出的氢氧根的个数为10-13N A ,故D错误; 故答案为C。 3.下列反应 的离子方程式正确的是A. 碳酸钠的水溶液呈碱性:CO32-+2H2O H2CO3+2OH-B. 用CH3COOH溶解CaCO3:CO32-+CH3COOH=CH3COO-+H2O+CO2↑ C. 向Fe (OH)3胶体中加入氢碘酸溶液:Fe(OH)3+3H+=Fe3++3H2O D. 氯化亚铁溶液中通入氯气:2Fe2++Cl2=2Fe3++2Cl- 【答案】D 【解析】 【详解】A、碳酸钠水溶液呈碱性的原因是因为碳酸根离子水解:CO32-+H2O HCO3-+OH-;故A错误; B、醋酸是弱电解质,写化学式,离子方程式为 CaCO3+2CH3COOH═Ca2++H2O+CO2↑+2CH3COO-,故B错误; C、向Fe(OH)3胶体中加入氢碘酸溶液,二者发生氧化还原反应,正确的离子方程式为:2Fe (OH)3+6H++2I-=2Fe2++I2+6H2O,故C错误; D. 氯化亚铁溶液中通入氯气,氯气氧化亚铁离子,离子方程式为:2Fe2++Cl2=2Fe3++2Cl-,故D正确; 故答案为D。 【点睛】注意明确离子方程式正误判断常用方法:检查反应物、生成物是否正确,检查各物质拆分是否正确,如难溶物、弱电解质等需要保留化学式,检查是否符合原化学方程式等。 4.某铁的氧化物(Fe x O)1.52g溶于足量盐酸中,向所得溶液中通入标准状况下112mlCl2,恰好将Fe2+完全氧化。x值为()

江西省九江第一中学高一 物理第一学期12月月月考考试卷及解析

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C.D. 5.盐城某火车转弯处规定速度为60km/h,下列说法中正确的是() A.轨道的弯道应是内轨略高于外轨 B.轨道的弯道应是外轨和内轨等高 C.如果火车按规定速率转弯,轨道对车轮无侧向压力 D.如果火车按规定速率转弯,轨道对车轮有侧向压力 6.一汽车通过拱形桥顶点时速度为10 m/s,车对桥顶的压力为车重的3/4,如果要使汽车在桥顶对桥面没有压力,车速至少为; A.15 m/s B.20 m/s C.25 m/s D.30 m/s 7.关于曲线运动,下列叙述中正确的是 A.物体做曲线运动时所受的合外力一定是变力 B.变速运动一定是曲线运动 C.当物体所受合外力的方向与物体速度方向不在同一直线上时,物体一定做曲线运动D.当物体做曲线运动时,物体所受的合外力方向与物体加速度方向不在同一直线上8.如图所示,竖直放置的玻璃管内放置着一片树叶和一个小石子,现将玻璃管迅速翻转180°,玻璃管内非真空,下列说法正确的是() A.树叶和小石子同时落到底部 B.小石子在下落过程中,处于失重状态 C.树叶在下落过程中,处于超重状态 D.将玻璃管抽成真空,重复上述实验,在树叶和小石子下落过程中,树叶和小石子都处于超重状态 9.一个物体受到大小分别为2 N、4 N和5 N的三个共点力的作用,其合力的最小值和最大值分别为( ) A.0 N,11 N B.1 N,11 N C.1 N,9 N D.0 N,9 N

【全国百强校】江西省吉安市第一中学2015-2016学年高二下学期第一次段考文数试题(解析版)

一、选择题(本大题共12个小题,每小题5分,共60分.在每小题给出的四个选项中,只有一项是符合题目要求的.) 1.复数212i i -=+( ) A .i B .i - C .4355i -- D .4355 i -+ 【答案】A 【解析】 试题分析:由题意得,()()()()212251212125 i i i i i i i i ---===++-,故选A . 考点:复数的运算. 2.已知0,0x y >>,且21x y +=,则xy 的最大值是( ) A .14 B .18 C .4 D .8 【答案】B 考点:基本不等式的应用. 3.已知,a b R ∈,则a b >是11()()22a b <的( )条件 A .充分不必要 B .必要不充分 C .必要 D .既不充分也不必要 【答案】C 【解析】 试题分析:由题意得,根据指数函数1 ()2x y =为单调递减函数,则当a b >时,1 1 ()()22a b <成立的;当11()()22a b <时,a b >是成立,所以a b >是11()()22 a b <的充要条件,故选C . 考点:充要条件的判定及指数函数的性质.

4.下列参数方程(t 为参数)中,与方程2y x =表示同一曲线的是( ) A. 2x t y t =??=? B .2tan tan x t y t ?=?=? C. x t y =?????2tan tan x t y t =??=? 【答案】 【解析】 试题分析:由题意得,A ,C ,D 项中0y ≥,而题设中函数y 的值域为全体实数,故A 项中的方程与方程2y x =表示的不是同一曲线,均可排除,通过B 项中的方程组可求得y 和x 的关系式为2y x =符合题意,故选B . 考点:抛物线的参数方程. 5.函数()f x 的定义域为R ,(1)2f -=,且对任意x R ∈,()2f x '>,则()24f x x >+的解集 为( ) A .(1,1)- B .(1,)-+∞ C .(,1)-∞- D .R 【答案】 B 考点:函数单调性的应用. 6.已知函数32 ()422f x x ax bx =--+在1x =处有极大值-3,则ab 等于( ) A .2 B .3 C .6 D .9 【答案】D 【解析】 试题分析:由题意得2()1222f x x ax b '=--,因为()f x 在1x =处有极大值3-,所以 (1)12220(1)4223f a b f a b '=--=??=--+=-? ,解得3,3a b ==,所以9ab =,故选D . 考点:用导数在函数的极值(点)的应用.

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