辽宁省沈阳市东北育才学校2020┄2021学年高二下学期期中试题英语

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. What does the woman want to do？

A. Find a place.

B. Buy a map.

C. Get an address.

2. What will the man do for the woman？

A. Repair her car.

B. Give her a ride.

C. Pick up her aunt.

3. Who might Mr. Peterson be？

A. A new professor.

B. A department head.

C. A company director.

4. What does the man think of the book？

A. Quite difficult.

B. Very interesting.

C. Too simple.

5. What are the speakers talking about？

A. Weather.

B. Clothes.

C. News.

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几个小题，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，你将有时间阅读各个小题，每小题5秒钟；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。

听第6段材料，回答6、7题。

6. Why is Harry unwilling to join the woman？

A. He has a pain in his knee.

B. He wants to watch TV.

C. He is too lazy.

7. What will the woman probably do next？

A. Stay at home.

B. Take Harry to hospital.

C. Do some exercise.

听第7段材料，回答第8、9题。

8. When will the man be home from work？

A. At 5:45.

B. At 6:15.

C. At 6:50.

9. Where will the speakers go？

A. The Green House Cinema.

B. The New State Cinema.

C. The UME Cinema.

听第8段材料，回答第10至12题。

10. How will the speakers go to New York？

A. By air.

B. By taxi.

C. By bus.

11. Why are the speakers making the trip？

A. For business.

B. For shopping.

C. For holiday.

12. What is the probable relationship between the speakers？

A. Driver and passenger.

B. Husband and wife.

C. Fellow workers.

听第9段材料，回答第13至16题。

13. Where does this conversation probably take place？

A. In a restaurant.

B. In an office.

C. In a classroom.

14. Where does John do now？

A. He’s a trainer.

B. He’s a tour guide.

C. He’s a college student.

15. How much can a new person earn for the first year？

A. $10,500.

B. $12,000.

C. $15,000.

16. How many people will the woman hire？

A. Four.

B. Three.

C. Two.听第10段材料，回答第17至20题

17. How long has the speaker lived in a big city？

A. One year.

B. Ten years.

C. Eighteen years.

18. What is the speaker’s opinion on public transport？

A. It’s comfortable.

B. It’s time-saving.

C. It’s cheap.

19. What is good about living in a small town？

A. It’s safer.

B. It’s healthier.

C. It’s more convenient.

20. What kind of life does the speaker seem to like most？

A. Busy.

B. Colorful.

C. Quiet.

第二部分：阅读理解（共20小题, 每小题2分, 满分40分）

第一节（共15小题；每小题2分, 满分30分）

阅读下列短文，从每篇短文后各题所给的A、B、C、D四个选项中选出最佳选项，并在答题卡上将该项涂黑。

A

Janet Guthrie and Danica Patrick, first female Indy competitor and winner

No complaints about woman drivers. Janet Guthrie, an space engineer who was training to be an astronaut, turned to car racing when she was cut from the space program for not having completed her doctors degree. In 1977, Guthrie became the first female Indy 500 competitor. She didn’t take the lead, but Danica Patrick did. In 2005 and in 2008, Patrick became the first woman ever to win an Indy Car Series.

Raymonde de Laroche, first female licensed pilot

A former actress who'd been born Elise Raymonde Deroche in Paris in 1882, Raymonde de Laroche was inspired to take up flying after seeing the Wright Brothers flight demonstrations in 1907 in France. Though she wasn’t the first female pilot, de Laroche was the first woman to earn a pilot’s license in 1910.

Gertrude Ederle, first woman to swim across the English Channel

On August 6. 1926. Gertrude Caroline Ederle became the first woman to swim across the English Channel. Ederle, who lived to be 98 and died in 2003, was also an Olympic swim champion and five-time world record-holder in five swimming events

Kathrine Switzer, Nina Kuscik and Joan Benoit, first major female marathoners.

In 1967, 20-year-old Kathrine Switzer became the first woman to run in the Boston Marathon, even though race officials had tried to stop her. Nina Kuscik became the first woman to officially win the Boston Marathon, 1972. In 1984, American Joan Benoit became the first winner of the Women’s Olympic Marathon, finishing 400 meters ahead of Norw ay's Grete Waitz

21. Why was Janet Guthrie forbidden to take up space program？

A. She used to be a woman driver.

B. She showed interested in car racing.

C. She was employed as an engineer.

D. She didn't gain doctors degree.

22. What made Raymonde de Laroche decide to become a pilot？

A. Her experience as an actress.

B. Her settlement in Paris.

C. Wright Brothers influence.

D. Wright Brothers dialogues.

23. What's the similarity between Gertrude Ederle and Kathrine Switzer？

A. They were athletic

B. They lived a long life.

C. They had a higher fame.

D. They were looked down upon.

B

FOR ALL the technological wonders of modern medicine, from gene-editing to fetal（胎儿的） surgery, health care—with its fax machines and clipboards（资料夹）—is often stubbornly old-fashioned. This outdated era is slowly drawing to a close as, slowly, the industry catches up with the artificial-intelligence （AI）revolution. And it should have happened earlier, argues Eric Topol, a heart doctor keen on digital medicine.

Dr Topol’s vision of medicine’s future is optimistic. He thinks AI will be particularly useful for repetitive tasks where errors arise easily, such as selecting images, examining heart traces for abnormal symptoms or recording doctors’ words into patient records. In short, AI is set to save time, lives and money.

Much of this is imaginary—but AI is already defeating people in a variety of narrow jobs for which it has been trained. Eventually it may be able to diagnose and treat a wider range of diseases. Even then, Dr Topol thinks, humans would watch over the rules, rather than being

replaced by them.

The author’s fear is that AI will be used to deepen the assembly-line（流水线） culture of modern medicine. If it awards a “gift of time” on doctors, he argues that this additional benefit should be used to extend the time of consultations, rather than simply speeding through them more efficiently.

The Hippocratic Oath holds that there is an art to medicine as well as a science, and that “warmth, sympathy and understanding may be more important than the surgeon’s knife or the chemist’s drug”. That is not just a cliché：the patients of sympathetic physicians have been shown to do better. As Dr Topol says, it is hard to imagine that a robot could really replace a human doctor. Yet as demand for health care goes beyond the supply of human carers, the future may involve consultations on smartphones and measurements monitored by chat robots. The considerately warmed stethoscope（听诊器）, placed gently on a patient’s back, may become history.

24.According to the author, health care has been generally considered ____________.

A. to bring out many technological wonders

B. to boost the sales of fax machines and clipboards

C. to be out of date and fail to keep up with modern times

D. to constantly catch up with new technological progress

25. AI is set to save time, lives and money because it can ___________.

A. repeat doctors’ words and instructions

B. correct doctors’ errors and mistakes

C. select doctors according to patients’ demands

D. replace doctors’ tasks in certain fields

26. The underlined word “cliché” is closest in meaning to __________.

A. an idea so often used that becomes uninteresting

B. an idea so interesting that is often used

C. an effective rule that applies to medicine and doctors

D. a benefit to both doctors and patients

27. It can be inferred from the passage that _____________.

A. AI will completely replace the jobs of doctors

B. doctors’ sympathy and understanding should not be ign ored

C. the application of AI will discourage the assembly-line culture

D. AI will bring warmth, sympathy and understanding to patients

C

The hemlock（铁杉）trees along the Creek, New York, look healthy. However, scientist Gary Lovett says the white balls which provide protection for the bugs are created by a tiny insect. It’s hard to believe the tiny bug could kill a tree. However, trees can end up with millions and millions of the pests. When there are that many, it ends up killing the tree.

The bug from East Asia is slowly killing trees across the USA. The trouble-making bug is just one of many invasive（入侵的） pests that have slipped into the United States. They can hurt other living things in their new home.

Many invasive pests arrive on wooden pallets（运货板）piled inside shipping containers. They support and separate goods, and keep them from sliding around. Invasive pests often tunnel into the pallets. How can we stop pests from riding on pallets？ Lovett says new rules are needed. The companies that mak e pallets don’t want more rules. Congress has added an amendment（修正案） in the 2018 Farm Bill to try and prevent this problem. However, Lovett is

not hopeful it will make much of a difference. Pallets are checked by inspectors. Many are sprayed with bug-kill ing pesticide. “I believe in the system，” said Brent McClendon, president of The National Wooden Pallet and Container Association. He also said shipping containers are checked very carefully.

Still, each year 13 million containers are shipped to the U. S. Each is full of wooden pallets. Lovett says：“Inspectors can’t possibly check everything. All it takes are a few bad pallets; we should get rid of wooden pallets.” He believes pallets should be made of plastic or eco-composite wood. Eco-composite wood is a mix of wood fiber and plastic. Insects cannot hide into it. One problem is that these choices cost more. They may be worth the extra money, though. Invasive pests cost the U．S. $5 billion a year. Trees don’t just die in forests. They also die in cities and our yards. Then, they need to be replaced. That costs money, too.

28. All the statements are TRUE except that ________．

A. pesticide has been applied to bug-killing

B. invasive pests are native to Creek

C. invasive pests hide in pallets used in shipping

D. the companies making pallets don’t want more rules

29. What can we infer from the passage？

A. Bugs can be easily spotted by eyes.

B. Bugs ruin the shipping goods slowly.

C. Even tiny bugs could be a threat to a tree.

D. Bugs cover trees with white soft balls to protect tress.

30. Why does Gary Lovett want to get rid of wooden pallets？

A. Because insects mostly die in them.

B. Because plastic pallets are eco-friendly.

C. Because they are not worth extra money.

D. Because they are the major pest carriers.

31. What does the passage mainly talk about？

A. Invasive pests are harming plants in the USA.

B. Effective measures have stopped the pest invasion.

C. Congress contributes a lot to dealing with invasive pests.

D. Ecosystem in the USA is poorly damaged by invasive woods.

D

While elephants born without tusks （长牙）are not unheard of，they normally form just 2 to 6 percent of the population. However, that is not the case at Mozambique’s Gorongosa National Park, where an astonishing 33 percent of female elephants born after the country’s civil war ended in 1992 are tuskless. While that may appear to be just a coincidence, Joyce Poole, an elephant behavior expert, has another theory. The researcher thinks we may be witnessing unnatural evolution of the species due to the constant hunting of elephants for valuable ivory.

Poole says before the country’s 15-year-long civil war, the 100,000-acre park was home to over 4,000 elephants. However, by the time the conflict ended in 1992, about 90 percent of them had been killed for ivory to help finance weapons （武器）and meat to feed the soldiers. Of the less than 200 survivors, over 50 percent of adult females had no tusks. Therefore, it is not surprising that the park’s tuskless elephant population has grown greatly.

This is not the first time researchers have observed a great change in the population of elephants. At Zambia’s South Luangwa National Park and Lupande Game Management Area，

areas which were heavily hunted in the 1970s and 1980s, 35% of elephants 25 years or older and 13% of those younger than 25 are now without tusks. A 2008 study published found that the number of tuskless females at the Ruaha National Park in Tanzania went from 10.5 percent in 1969 to almost 40 percent in 1989, largely due to illegal hunting for ivory.

The recent ban on ivory in both the US and China should help get rid of, or at least reduce, elephant hunting. However, scientists are not sure how long it will take for elephants with a higher rate of tuskless females, to change the trend.

32. What is the probable cause of the phenomenon mentioned in Paragraph 1 ？

A. Illegal hunting.

B. Constant farming.

C. A pure coincidence.

D. Natural evolution.

33. Why did people kill so many elephants during the civil war in Mozambique？

A. T o get funds by selling ivory.

B. To develop new weapons.

C. T o provide food for local people.

D. To make ivory products.

34. Which of the following had the earliest record on tuskless elephants？

A. Gorongonsa National Park.

B. South Luangwa National Park.

C. The Ruaha National Park.

D. Lupande Game Management Area.

35. What does the underlined phrase “the trend” in the last paragraph refer to？

A. Elephants facing greater danger.

B. Elephants growing more slowly.

C. Fewer female elephants staying alive.

D. More female elephants being tuskless.

第二节（共5小题；每小题2分，满分10分）

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。并在答题卡上将该项涂黑。选项中有两项为多余选项。

Can We Stop Food Longing Through Imaginary Eating？

Are you fighting an urge to reach for chocolate？ Then, let it melt in your mind, not in your mouth. According to the recent research, imagining eating a specific food reduces your interest in that food, so you eat less of it.

This reaction to repeated exposure to food—being less interested in something because you’ve experienced it too much—is called habituation. ____36____

The research is the first to show that habituation can occur through the power of the mind. “If you just think about the food itself—how it tastes and smells—that will increase your appetite,” said Carey Morewedge, a well-kn own psychologist. “It might be better to force yourself to repeatedly think about chewing and swallowing the food in order to reduce your longing. ____37____ Visualizing yourself eating chocolate wouldn’t prevent you from eating lots of cheese,” he added.

Morewedge conducted an interesting experiment. 51 subjects were divided into three groups. One group was asked to imagine putting 30 coins into a laundry machine and

then eating three chocolates. ____38____ Another group was asked to imagine putting three coins into a laundry machine and then eating 30 chocolates. Lastly, a control group

imagined just putting 33 coins into the machine—with no chocolates. ____39____ When

they said they had finished, these were taken away and weighed. The results showed the group that had imagined eating 30 chocolates each ate fewer of the chocolates than the other groups.

____40____ Physical signals—that full stomach feeling—are only part of what tells us we’ve finished a meal. The research suggests that psychological effects, such as

habituation, also influence how much a person eats. It may lead to new behavioral

techniques for people looking to eat more healthily, or have control over other habits.

A. What’s more, this only works with the specific food you’ve imagined.

B. People were advised to try different methods to perform the experiment.

C. For example, a tenth bite is desired less than the first bite, according to the research.

D. All of them then ate freely from bowls containing the same amount of chocolate each.

E. It meant those who repeatedly imagined eating would prefer some specific food.

F. This requires the same motor skills as eating small chocolates from a packet, the study

says.

G. This study is part of the research looking into what makes us eat more than we actually

need.

第三部分：语言知识运用

第一节：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、D）中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。

I was at the post office early that morning, hoping to be in and out in a short while. Yet, I

41 myself standing in a queue that went all the way into the hallway. I had never seen so many

people there on a weekday. It seemed someone might have made an announcement, welcoming customers to carry as many 42 as they could and bring them in when I needed to have my own package 43 . The queue moved very slowly. My patience ran out and I got 44 . The longer it took, the angrier I became. When I got to the counter finally, I finished my 45 quickly and briefly, and then walked past the queue that was now extending past the front door.

“Excuse me,” I said, trying not to be too pushy. Several people had to move 46 to make room for me to get to the 47 .

I stepped out, complaining about the 48 conditions. Thinking I was going to be late for my dentist appointment, I headed into the parking lot.

A woman was coming across the lot in my 49 . She was walking with determination, and each step sounded very heavy. I 50 that she looked as if she could breathe fire. It stopped me in my tracks. I 51 myself and it wasn't pretty. Had I looked like that？ Her body language said that she was having a 52 day. My anger melted away. I wished I could wrap her in a hug but I was a 53 . So I did what I could in a minute 54 she hurried past me—I smiled. In a second everything changed. She was astonished, then somewhat 55 .Then her face softened and her shoulders 56 . I saw her take a deep breath. Her pace slowed and she smiled back at me as we passed each other. I continued to smile all the way to my 57 . Wow, it's amazing what a simple smile can do.

From then on, I became aware of people's 58 and my own, the way we show our feelings. Now I use that 59 every day to let it 60 me that when facing the world, I can try a smile.

41. A. found B. helped C. troubled D. enjoyed

42. A. possessions B. packages C. chances D. dollars

43. A. lifted B. cashed C. weighed D. carried

44. A. pleased B. disappointed C. delighted D. annoyed

45. A. business B. choice C. situation D. attitude

46. A. away B. about C. along D. aside

47. A. counter B. cashier C. exit D. entrance

48. A. weather B. service C. work D. purchase

49. A. satisfaction B. decision C. direction D. imagination

50. A. announced B. discovered C. proved D. noticed

51. A. trusted B. recognized C. hid D. persuaded

52. A. rough B. bright C. big D. nice

53. A. gentleman B. stranger C. customer D. passenger

54. A. until B. though C. before D. since

55. A. attracted B. frightened C. excited D. confused

56. A. trembled B. raised C. relaxed D. tightened

57. A. car B. office C. home D. doctor

58. A. appearances B. reactions C. conversations D. expressions

59. A. treatment B. awareness C. conclusion D. achievement

60. A. remind B. show C. give D. tell

第二节：语篇填空（共10小题；每小题1.5分，满分15分）

阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括

号中词语的正确形式填空，并将答案填写在答题纸相应位置上。

Everyone likes to have friends 61 are trustworthy. When what we say matches what we do, we earn trust and friendship. On 62 contrary, once we break our word, nobody will ever trust us again. For example, if you are 63 untrustworthy worker, you are less likely 64 （get）a promotion. Therefore, the 65 （important）of keeping one's word cannot be stressed too much.

I once had the unpleasant experience of someone breaking his promise to me. Last month, everyone in my class had to gather at school 66 6：30 am for our 67 （graduate） trip. My friend Ben asked me to meet him at McDonald's at six, but he never showed up. I was 68 （depress）that when I called him, he told me he was already at school. I 69 （rush）straight there, but all my classmates still blamed me for delaying the trip. After that, I ended my 70 （friend） with Ben because I don't need friends who can't keep their word.

第四部分：写作

第一节短文改错（共10小题；每小题1分，满分10分）

假定英语老师要求同桌之间互相修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。

增加：在缺词处加一个漏字符号（^），并在其下面写出该加的词。

删除：把多余的词用斜线（\）划掉。

修改：在错的词下面划一横线，并在该词下面写出修改后的词。

注意：

1．每处错误及其修改均仅限1词；

2．只允许修改10处，多者（从第11处起）不计分。

In my childhood, my parents sent me to learn Chinese calligraphy. However, things are quite opposite to their expectations. Not only I get bored with hours of practice but also I doubted about the valuable of it. Nevertheless, when I entered high school, write calligraphy proved both essential or beneficial. It was at that time when I realized how important it is to master a certain skill.

Judging from my own experience, I want to say a few word to those children who have a same trouble as I did. Do not refuse to learn a skill when young, as at the long run you will find them helpful.

第二节：书面表达（25分）

假定你是李华，是校学生会主席，你校将举行校文化节，学校安排你写一封电子邮件，邀请外籍教授Black先生做关于中美文化差异的讲座。

要点：1.讲座时间：2019年5月16日下午15点到17点；

2.讲座地点：报告厅；

3.联系方式：。

注意：1.词数100左右；

2.可以适当增加细节，以使行文连贯。

Dear Professor Black,

______________________________________________________________________________________________________ __________________________________________________

Yours,

Li Hua

答案

1-5ABCBA 6-10 BCACA 11-15ACBCA 16-20CBCAB

21-23 DCA 24-27 CDAB 28-31 BCDA 32-35 AACD 36-40CAFDG

41-45ABCDA 46-50DCBCD 51-55BABCD 56-60CADBA

61．who/that 62. the 63.an 64.to get 65.importance

66. at 67.graduation 68.depressed 69.rushed 70.friendship

短文改错： In my childhood, my parents sent me to learn Chinese calligraphy. However, things

are were quite opposite from their expectations. Not only did

I get bored with hours of practice but also I doubted about the valuable value of it. Nevertheless, when I entered high school, write writing calligraphy proved both essential

or and beneficial. It was at that time when that I realized how important it is to master a certain skill. Judging from my own experience, I want to say a few

word words to those children who have a the same trouble as I did. Do not refuse to learn a skill when young, as at in

the long run you will find them it helpful. 书面表达：

Dear Professor Black,

I am Li Hua, chairman of the Students' Union. Our school will have a culture festival and I am writing to invite you to give us a lecture about the cultural differences between America and China, which will begin at 15 o'clock and end at 17 o'clock on May 16th, 2019 in the lecture hall.

As an expert in international culture, you must have a good knowledge of the cultural differences, so we hope you could help us clear some cultural confusion. Could you please

contact us at if you could come to our culture festival？

We are looking forward to your reply.

Yours truly,

Li Hua

辽宁省沈阳市东北育才学校2018-2019学年高二上学期期中考试数学试题(解析版)

2018-2019学年度上学期高二年级期中考试数学试卷 一、选择题：（每题5分，满分60分） 1.已知命题p：?x∈R，sinx≤1，则（） A. ?p：?x R，sinx≥1 B. ?p：?x R，sinx>1 C. ?p：?x∈R，sinx＞1 D. ?p：?x∈R，sinx≥1 【答案】C 【解析】 【分析】 根据?p是对p的否定，故有：?x∈R，sinx＞1．从而得到答案． 【详解】∵?p是对p的否定∴?p：?x∈R，sinx＞1 故选：C． 【点睛】本题主要考查全称命题与特称命题的转化问题． 2.是"方程""表示焦点在轴上的椭圆的( ) A. 充分不必要条件 B. 充要条件 C. 必要不充分条件 D. 既不充分也不必要条件 【答案】B 【解析】 【分析】 将方程mx2+ny2=1转化为，然后根据椭圆的定义判断． 【详解】将方程mx2+ny2=1转化为， 根据椭圆的定义，要使焦点在y轴上必须满足，且，即m＞n＞0 反之，当m＞n＞0，可得出＞0，此时方程对应的轨迹是椭圆 综上证之，”m＞n＞0”是”方程mx2+ny2=1表示焦点在y轴上的椭圆”的充要条件

故选：B． 【点睛】本题考查椭圆的定义，难度不大，解题认真推导． 3.如图是谢宾斯基三角形，在所给的四个三角形图案中，黑色的小三角形个数构成数列的前4项，则 的通项公式可以是（） A. B. C. D. 【答案】A 【解析】 【分析】 着色的小三角形个数构成数列{a n}的前4项，分别得出，即可得出{a n}的通项公式． 【详解】着色的小三角形个数构成数列{a n}的前4项，分别为：a1=1，a2=3，a3=3×3=32，a4=32×3， 因此{a n}的通项公式可以是：a n=3n﹣1． 故选：A． 【点睛】本题考查了等比数列的通项公式，考查了观察分析猜想归纳推理能力与计算能力，属于中档题．4.已知双曲线的中心在坐标原点,离心率,且它的一个顶点与抛物线的焦点重合,则此双曲线 的方程为（） A. B. C. D. 【答案】D 【解析】 此题考查双曲线标准方程的求法；可以利用定义或待定系数法求，首先要搞清楚焦点所在的位置，然后在求解，如果不清楚焦点位置，首先要讨论；由已知得到：，因为抛物线的焦点是，所以双曲线的顶点是，所以双曲线焦点在轴上，且，所以，所以标准方程是，

辽宁东北育才学校高一下阶段考1英语试卷

2020-2021学年辽宁东北育才学校高一下阶段考1英语试卷学校:___________姓名：___________班级：___________考号：___________ 一、阅读选择 Maybe you don’t think animals have certain mental powers which human beings do not have. But the truth is that some of them have instincts, and besides this, I am sure they can feel certain things we humans cannot. A personal experience showed me this. Some years ago, I had a dog named Howard. From the time when he was a puppy, he was timid, so we named him Howard, sounding like “coward”! He was especiall y afraid of thunderstorms. At the first flash of lightning or crash of thunder, he would run whining into his house and hide under a table. I often went for a walk with Howard. Once, as we were walking along a road, it began to rain. I quickly ran to a bus stop for shelter. The bus stop had a roof supported by metal poles. Soon after I had got there, Howard caught my trousers in his teeth and tried to pull me away. At first I was puzzled and a little angry at his behavior. But I decided to humor him and walked away from the shelter into the rain and started to go home. When I was about two hundred metres from the shelter, there came a flash of lightning and soon after, there was thunder which nearly deafened me. Howard stopped walking and began whining. Thinking he was afraid, I bent to pick him up. As I straightened up, I glanced at the bus shelter we had just left. I was shocked to see that two of the poles were bent and the roof was lying on the ground, broken. The shelter had been struck by the bolt of lightning! 1．The author named his dog Howard mainly because of_______. A．his timid characteristic B．one of the author’s friends Howard C．his loud sound D．his strange behaviors 2．The reason why the author was puzzled and angry with the dog was that . A．Howard had a strange behavior B．Howard should be afraid of the metal poles C．Howard should know the approaching of the terrible lightning D．Howard bit his trousers in his teeth 3．Which of the following is true according to the passage?

辽宁省沈阳市东北育才学校2019-2020学年高一下学期期中考试英语试题 Word版含解析

东北育才学校科学高中部线上教学阶段性检测 高一年级英语学科 完成时间100分钟总分120分 第一部分阅读（共两节，满分50分） 第一节（共15小题，每小题2.5分，总分37.5分） A You might have heard a lot about ancient towns and ancient cities in China. Here, we list several of the most beautiful ancient villages in China. Baoshan Stone City, Yunnan Province Baoshan Stone City was built on a huge mushroom-shaped rock, and only has about one hundred houses. The houses are laid out in an orderly way, built on the rock, and linked by stone steps. The Naxi people there still lead an original life and grow crops in terraces (梯田); you can experience the colorful culture of the Naxi ethnic (民族的) group there. Tuvas Village in Kanas, Xinjiang Kanas Tuvas Village is near the mysterious Lake Kanas. The small village is located in a valley, and only has about 80 houses. These Swiss-style wooden houses are all surrounded by wooden fences. Tuvas is an ancient minority group. They traditionally lived as hunter-gathers. You can visit a local family, go herding (放牧) with the locals and experience the peaceful ancient village life. Jiaju Tibetan Village, Danba, Sichuan Province Jiaju Tibetan Village is known as the “Tibetan fairyland”. It stands on a mountain slope, and consists of about 140 houses. These unique houses are all built with crown-shaped roofs, red eaves, and white walls, which make the houses look like little castles among the forest. Xijiang Miao Village, Guizhou Province If you re interested in the Miao Minority, Xijiang Miao Village can be a great destination for deepening your u nderstanding of Miao history and culture. It’s the largest Miao village in China, and now has 1432 households with a population of over 5000, of which 99.5% are Miao ethnic group. It’ s also famous for the houses built

2018-2019学年辽宁省沈阳市东北育才学校高二下学期期中考试英语试题 听力

2018—2019学年度下学期期中考试高二年级英语科试卷 答题时间：120分钟满分：150分 命题人：高二英语组校对人：高二英语组 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.What does the woman want to do? A.Find a place. B.Buy a map. C.Get an address. 2.What will the man do for the woman? A.Repair her car. B.Give her a ride. C.Pick up her aunt. 3.Who might Mr.Peterson be? A.A new professor. B.A department head. C.A company director. 4.What does the man think of the book? A.Quite difficult. B.Very interesting. C.Too simple. 5.What are the speakers talking about? A.Weather. B.Clothes. C.News. 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几个小题，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，你将有时间阅读各个小题，每小题5秒钟；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。 听第6段材料，回答6、7题。 6.Why is Harry unwilling to join the woman? A.He has a pain in his knee. B.He wants to watch TV. C.He is too lazy. 7.What will the woman probably do next?

【6套合集】辽宁东北育才学校高中部2020中考提前自主招生数学模拟试卷附解析

中学自主招生数学试卷 一、选择题（每小题3分，共24分.在每小题给出的四个选项中，有且只有一项是正确的．）1．（3分）﹣3的相反数是（） A．3B．﹣3C．±3D． 2．（3分）下列计算正确的是（） A．2a+3b＝5ab B．＝±6 C．a2b÷2ab＝a2D．（2ab2）3＝8a3b6 3．（3分）如图，图1是一个底面为正方形的直棱柱；现将图1切割成图2的几何体，则图2的俯视图是（） A．B．C．D． 4．（3分）一组数据1，2，3，3，4，5．若添加一个数据3，则下列统计量中，发生变化的是（） A．平均数B．众数C．中位数D．方差 5．（3分）如图，AB是⊙O的直径，直线P A与⊙O相切于点A，PO交⊙O于点C，连接BC．若∠P＝40°，则∠ABC的度数为（） A．20°B．25°C．40°D．50° 6．（3分）如图，直线l1∥l2∥l3，直线AC分别交l1，l2，l3于点A，B，C；直线DF分别交l1，l2，l3于点D、E、F，AC与DF相交于点H，且AH＝2，HB＝1，BC＝5，则＝（）

A．B．2C．D． 7．（3分）已知实数x、y满足：x﹣y﹣3＝0和2y3+y﹣6＝0．则﹣y2的值为（）A．0B．C．1D． 8．（3分）如图，直线y＝kx+b与y＝mx+n分别交x轴于点A（﹣1，0），B（4，0），则函数y＝（kx+b）（mx+n）中，当y＜0时x的取值范围是（） A．x＞2B．0＜x＜4 C．﹣1＜x＜4D．x＜﹣1 或x＞4 二、填空题（本大题共10小题，每小题3分，共30分．） 9．（3分）“五一”小长假期间，扬州市区8家主要封闭式景区共接待游客528600人次，同比增长20.56%．用科学记数法表示528600为． 10．（3分）若有意义，则x的取值范围是． 11．（3分）分解因式：mx2﹣4m＝． 12．（3分）若方程x2+kx+9＝0有两个相等的实数根，则k＝． 13．（3分）一个圆锥的母线长为5cm，底面半径为2cm，那么这个圆锥的侧面积为cm2．14．（3分）如图，点A是反比例函数y＝的图象上的一点，过点A作AB⊥x轴，垂足为B．点C为y轴上的一点，连接AC，BC．若△ABC的面积为4，则k的值是．

2019—2020学年度东北育才学校高三第一次模拟试题高中化学

2019—2020学年度东北育才学校高三第一次模拟试 题高中化学 命题人：高三化学组 考试时刻：90分钟总分值100分 相对原子质量： H：1 O：16 C：12 N：14 S：32 Ag：108 Fe：56 Cl：35.5 Si：28 一、选择题〔此题共15个小题，每题只有一个正确选项，每题3分，共45分〕 1、以下物质：①Cl2②Na ③Na2O2④NO2分不与水反应，氧化剂与还原剂的物质的量之比为1:1的是 A、①② B、②③ C、①②③ D、①②③④ 2、Na2O2、CaC2、CaH2、Mg3N2都能与水反应，且反应中都有气体放出。以下讲法正确的选项是 A、差不多上氧化还原反应 B、CaC2, Mg3N2与水反应属于复分解反应 C、Na2O2,CaH2与水反应，水作氧化剂 D、CaH2与水反应产生H2,它是氧化产物 3、将n molCu2S的与足量的稀硝酸反应，生成硝酸铜、硫酸、一氧化氮和水，那么参加反应的硝酸中被还原的硝酸的物质的量是 A、4n mol B、10n mol C、10n/3 mol D、2n/3 mol 4、以下离子方程式正确的选项是 A、碳酸氢钠溶液与少量石灰水反应：HCO3-+Ca2++OH-=CaCO3↓+H2O B、氯化铵与氢氧化钠两种浓溶液混合加热： C、氢氧化镁与稀硫酸反应：H++ OH-= H2O D、单质铜与稀硝酸反应：Cu+2H++2NO3-= Cu2++2NO↑+ H2O 5、假设溶液中由水电离产生的c(OH_)=10-14mol/L,满足此条件的溶液中一定能够大量共存的离子组是 A、Al3+、Na+、NO3—、Cl— B、Na+、K+、NO3—、Cl— C、Na+、K+、Cl—、AlO2- D、NO3—、K+、NH4+、SO42- 6、现有碳酸钠、氢氧化钡、硫酸三种体积和物质的量浓度都相同的溶液，以不同的顺序将它们混合，如生成沉淀，赶忙过滤掉。关于所得溶液的酸碱性的以下结论中不正确的选项是 A、一定显碱性 B、可能显中性 C、不可能显酸性 D、可能显碱性

2020年辽宁省沈阳市东北育才学校高一(下)期中数学试卷

期中数学试卷 题号一二三总分 得分 一、选择题（本大题共12小题，共60.0分） 1.已知α是锐角，，，且，则α为（） A. 30° B. 45° C. 60° D. 30°或60° 2.化简的结果为（） A. -1 B. 1 C. cotα D. -cotα 3.若点P（-1，2）是钝角α的终边上一点，则角α可以表示为（） A. B. C. arctan（-2） D. 以上都不对 4.已知函数f（x）=-sin4x，则（） A. f（x）在上单调递增 B. f（x）在上单调递减 C. f（x）在上单调递增 D. f（x）在上单调递减 5.如果函数y=sin2x+a cos2x的图象关于直线x=-对称，那么a等于（） A. B. 1 C. D. -1 6.已知平面上三点A，B，C，满足，，，则 =（） A. 28 B. -28 C. 100 D. -100 7.为了得到函数的图象，可以将函数y=2cos2x的图象（） A. 向右平移个单位 B. 向右平移个单位 C. 向左平移个单位 D. 向左平移个单位 8.已知角α，β∈（0，），且=tanβ，则（） A. B. C. 2 D. 9.如图，在△ABC中，，，若， 则λ+μ的值为（） A. B. C. D. 10.若，则S不能是（）

A. B. C. D. 11.O为△ABC内一点，且2++=，=t，若B，O，D三点共线，则t的值为 （） A. B. C. D. 12.已知函数f（x）=A sin（ωx+φ）（A＞0，ω＞0，0＜φ＜π），其部分图象如图所示， 则f（π）+f（2π）+f（3π）+…+f（2018π）的值为（） A. B. 0 C. 2018 D. 二、填空题（本大题共4小题，共20.0分） 13.设α为锐角，若cos（α+）=，则sin（2α+）=______． 14.已知向量与的夹角是钝角，则k的取值范围是______． 15.已知，，与的夹角为120°，，则与的夹角为______． 16.已知函数f（x）=|sin x|+cos x，现有如下几个命题： ①函数f（x）为偶函数； ②函数f（x）最小正周期为2π； ③函数f（x）值域为； ④若定义区间（a，b）的长度为b-a，则函数f（x）单调递增区间长度的最大值为．其 中正确命题为______． 三、解答题（本大题共6小题，共70.0分） 17.已知向量． （1）若与垂直，求k的值； （2）若与平行，求k的值． 18.已知向量，，设． （1）求函数f（x）的最小正周期和对称中心；

2018-2019学年度辽宁省沈阳市东北育才高三年级第五次模拟考试试卷与答案

{正文} 2018-2019学年度辽宁省沈阳市东北育才高三年级第五次模拟考试 数学（理科）试卷 答题时间：120分钟 满分：150分 一、选择题：本大题共12小题，每小题5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．已知i 为虚数单位，4 1z i = -，则复数z 的虚部为 A ．2i - B ．2i C ．2 D ．2- 2．已知全集? ?? ???≥--==020192018,x x x A R U ，则U C A = A ．{|20182019}x x ≤≤ B ．{|20182019}x x << C ．{|20182019}x x <≤ D ．{|20182019}x x ≤< 3．向量,,a b c 在正方形网格中的位置如图所示．若向量c =λ+a b ，则实数=λ A ．2- B ．1- C ．1 D ．2 4．已知等差数列{}n a 的前n 项和为n S ，满足8584S a =-，则该数列的公差是 A ．1 B ．2 C ．3 D ．4 5．若双曲线22 2:14x y C m -=的焦距为45C 的一个焦点到一条渐近线的距离为 A ．2 B ．4 C 19．219

6．已知函数()2()ln x f x ef e x e '=-，则()f x 的极大值点为 A ． 1e B ．1 C ．e D ．2e 7．已知函数()sin()=+f x A x ω?，（0,0>>A ω，||2 <π ?）的部分图象如图所示， 则?=ω? A ． 6π B ．4π C ．3 π D ．23π 8．如图，网络纸上小正方形的边长为1，粗线画出的是某四棱锥的三视图，则该几何体的体积为 A ．2 B ． 8 3 C ．6 D ．8 9．某地区高考改革，实行“3+2+1”模式，即“3”指语文、数学、外语三门必考科目，“1”指在物理、历史两门科目中必选一门，“2”指在化学、生物、政治、地理以及除了必选一门以外的历史或物理这五门学科中任意选择两门学科，则一名学生的不同选科组合有 A ．8种 B ．12种 C ．16种 D ．20种

2016沈阳各高中高考情况

2016沈阳各高中高考成绩（大部分数据来自各高中官网），希望可以帮助到考生和家长们！ 本溪高中 1、理科杨本瑞、白鹤洋、王鹤儒同学分别以704分、698分、697分（并列），进入全省前十名，全省第一。其中杨本瑞进入全省前三。 2、理科690分以上6人，全省第一；680分以上14人；670分以上50人，全省第一；660分以上90人，全省第一；650分以上166人，全省第一；640分以上225人，全省第一；600分以上463人，全省第一。 文科630分以上6人，620分以上13人。600分以上59人，全省第一。 文理合计有522人过600分，全省第一。 3、理科一批本上线人数825人，文科一批本上线人数236人，文理合计共有1061人过一本录取线（参加考试人数1090人），一本上线率达97.34%，全省第一。创历史新高。 4、宫常裕老师所带的3年17班全班56人，悉数过640分段，其中700分以上1人，690分以上4人，680分以上7人，全班平均分为667.28分，堪称全省第一班！ 5、高分段考生在以往几乎被名校包揽而今年向全省各中学分散的情况下，我校预计有近三十人考入清华北大。 6、理科普通班每班过600分人数平均为24人，过一本分数线人数平均为65人；文科普通班每班过600分人数平均为6人，过一本分数线人数平均为48人；理科4个奥赛班悉数过600分段。 东北育才（本部+科高+少儿班）

参加高考共501人，其中文理科660分以上的96人，约总人数五分之一；600分以上近400人，占总人数的75%，全省第一。超常教育实验部杨明煜以701分获得沈阳市理科最高分，高中部张锏戈以641分获得沈阳市文科最高分。理科一本上线率99.2%，文科一本上线率100%。高分群体数量、质量在全市遥遥领先。 优才教育实验成果突出，超常教育实验班600分以上100%，总平均分656分。高中部科技创新班、数学特长班600分以上均为97%。 辽宁省实验学校 理科： 理科高分频出，690分以上——黄道吉、尹国栋；680分以上——侯懿、张玮琪、赵文亮、孙士淇、曾麟凯、金泽润、杨卓然、宋扬、王梓默；670分以上——张钰、王金辉、张云佳、许伊琳、黄川宁、王华强、刘光楠、赵梓含、杨嘉琳、程昊、赵琦、陈鉴轩、黄梓安、曲心和、马跃元、曹洋笛、李奉治、杨逸飞、刘天想、高晨、刘睿剑、刘芳琳。以上共计33人。理科正式参加高考考生436人，平均分633.02，有372人超过600分，一本率达到99.5%。文科： 文科630分以上——孙梦晗、董妍婷、马智雍；620分以上——韩雨迪、兰英、刘绍萱、吴辰、孙晔。610分以上21人。文科正式参加高考考生85人，平均分592.68，600分以上36人，一本率达到98.8%。 多渠道升学： 王诺舟获得数学奥林匹克竞赛国际金牌，保送北京大学；苏海舰获得数学奥林匹克竞赛国家金牌，保送北京大学；刘智媛提前被清华大学录取；百余人获得清华、北大、人大等全国著

2015年东北育才学校分流考试数学试题及答案

2015年东北育才学校分流考试数学试题及答案 一、选择题 1. 实数0.3π中是无理数的有（ ） A.0个 B.1个 C.2个 D.3个 2. 某几何组合体的主视图和左视图为同一视图，如图所示，则该几何体的俯视图不可能是（ ） 3. 实数a 、b 、c 在数轴上对应的点如图所示，则下列式子中正确的是（ ） A.ac>bc B.-a-c>-b-c C.-a<-b<-c D.|a-b|=a-b 4. 为了响应国家“节约用水”的号召，在东北育才学校某班级中，随机调查6名同学的家庭一年用水量（单位：吨），记录如下：10、9、8、9、9、12，则这组数据的平均数和中位数是分别是（ ） A.9.5；9 B.9.5；8.5 C.9；9.5 D.9.5；10 5. 如图，在平行四边形ABCD 中，∠ABC 和∠BCD 的平分线交边AD 于点E ，且BE=12，CE=5，则点A 到BC 的距离是（ ） A. 125 B.4 C. 6013 D. 607 6. 关于x 的方程x 1x 2a a=233 --+的解大于33，则实数a 的取值范围是（ ） A.a>2 B.a>3 C.a<2 D.a<3 7. 如图，点C 、D 在以AB 为直径的⊙O 上，且CD 平分∠ACB ，若AB=6，∠CBA=15°，则CD 的长是（ ）

A. 8. 如图，在Rt △ABC 中，BC=a 、AB=c ，CD 为斜边上的高，DE ⊥AC ，设△ADE 、△CDB 、△ABC 的周长分别为P 1、P 2、P ，则当12P P P +取得最大值时，sinA=（ ） A.12 B.23 D.34 9. 如图，点A 在函数1y x =的图像上，B C （，是利用性质“函数1y x =的图像 上任意一点A 满足求下列问题：作∠BAC 的平分线AE ，过B 作AE 的垂线交AE 于F ，已知当点A 在函数1y x =的图像上运动时，则点F 总在（ ）上运动。 A.直线 B.双曲线 C.抛物线 D.圆 10. 已知关于x 的方程x|x|-2x+c=0，下面四个结论： ①当c=0时，方程有3个解 ②当c=1时，方程有2个解 ③方程至少有1个解 ④方程可以有4个解 A.①④ B.②③ C.①③ D.②④ 二、填空题 11. 02sin601=π+?+-） . 12. 从长度分别为2、4、6、7的四个线段中随机抽取三条，它们能构成三角形的概率是 . 13. 已知关于x 的方程x 2-（m+2）x+m 2+1=0的两个实数根的平方和为5，则实数m 的取值是 . 14. 在正方形ABCD 和正方形CEFZG 中，点D 在CG 上，BC=1、CE=3，H 是AF 的中点，则线段CH 的

辽宁省沈阳市东北育才学校2020学年高一数学下学期第一次月考试题(含解析)

辽宁省沈阳市东北育才学校2020学年高一数学下学期第一次月考试 题（含解析） 一、选择题（共12小题，共60分） 1.角的终边经过点，则的值为 A. B. C. D. 【答案】D 【解析】 根据三角函数定义，，，，所以，故选择D. 2.若，且为第四象限角，则的值等于（） A. B. C. D. 【答案】D 【解析】 ∵sin a=,且a为第四象限角, ∴， 则， 故选：D. 3.如图，的外切正六边形ABCDEF的边长为2，则图中阴影部分的面积为

A. B. C. D. 【答案】D 【解析】 【分析】 由于六边形是正六边形，所以，故是等边三角形， ，设点为与的切点，连接，则，，再根据，进而可得出结论． 【详解】六边形是正六边形， ， 是等边三角形，， 设点为与的切点，连接，则， ， ．故选：． 【点睛】本题主要考查的是正多边形和圆，根据正六边形的性质求出是等边三角形是解答此题的关键． 4.的图象是 A. B. C. D.

【答案】D 【解析】 当时，，故B、C不正确，当时， ，所以A不正确，故选D. 5.将函数的图象向右平移个周期后，所得图象对应的函数为（） A. B. C. D. 【答案】D 【解析】 试题分析：函数的周期为，将函数的图像向右平移个周期即个单位，所得图像对应的函数为，故选D. 【考点】三角函数图像的平移 【名师点睛】函数图像的平移问题易错点有两个,一是平移方向,注意“左加右减”；二是平移多少个单位是对x而言的,不要忘记乘以系数. 6.若，则 A. B. C. D. 【答案】C 【解析】

由题得再结合x 的范围得到即得x的值. 【详解】由题得，所以. 故选：C 【点睛】本题主要考查反三角函数及其奇偶性，意在考查学生对这些知识的理解掌握水平和分析推理计算能力. 7.若，且，则 A. B. C. D. 【答案】A 【解析】 【分析】 对条件两边平方可得，，利用三姊妹关系即可得到 结果. 【详解】由题：，于是 由于， ，故选：A 【点睛】本题考查三角函数的化简求值，判断三角函数的值的符号，诱导公式的应用，考查 计算能力，属于基础题. 8.下列三角函数值大小比较正确的是 A. B. C. D. 【答案】C 【解析】

辽宁省沈阳市东北育才学校2018-2019学年高一英语下学期期中试题

辽宁省沈阳市东北育才学校2018-2019学年高一英语下学期期中试题答题时间：120分钟满分：150分命题人、校对人：高一英语组 第一部分：听力(共20小题; 每小题1.5分, 共30分) 第一节听下面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 relationship between the two speakers? A. Husband and wife. B. Teacher and students. C. Doctor and patient. 2. How does the woman feel about the shoes? A. They’re a bit small. B. They’re too expensive. C. She doesn’t like the color. 3. Why was Alicia late this time? A. She missed the bus. B. Her grandma was sick. C. The bus was in an accident. 4. What was the woman probably trying to get? A. A ticket for a movie. B. A part in a play. C. A job as a model. 5. Where are the speakers? A. At a bag store. B. In a restaurant. C. At a hotel. 第二节听下面5段对话或独白。每段对话或独白后有几个小题，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，你将有时间阅读各个小题，每小题5秒钟；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。听第6段材料，回答第6、7题。 6. Why is Mary upset? A. She failed the test. B. She didn’t s tudy hard. C. Jay did better than her in the test. 7. What score did Jay get in the test?

辽宁省沈阳市东北育才学校高中部2013届高三第一次模拟考试数学理

第Ⅰ卷 一、选择题：本大题共12小题，每小题5分，满分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．已知集合A ，B 都是非空集合，则“()x A B ∈ ”是“x A ∈且x B ∈”的 A ．充分不必要条件 B ．必要不充分条件 C ．充要条件 D ． 既不充分也不必要条件 2. 在右程序框图中，当n N +∈(1)n >时，函数()n f x 表示函数1()n f x -的导函数.若输入函数1sin cos =+()f x x x ，则输出的函数()n f x 可化为 A -x π)4 B ．-x π )4 C +x π)4 D ．+x π )4 3．已知偶函数()f x 在区间[0,)+∞单调增加，则满足 (21)(3)f x f -<-的x 取值范围是 A ．(1,2)- B ．(,1)-∞- C ．(,2)-∞ D ．(2,1)- 4．下列说法错误的是 A ．若命题2:,10p x R x x ?∈-+=，则 2:,10p x R x x ??∈-+≠ B ．命题“若0a =，则0ab =”的否命题是：“若0a ≠，则0ab ≠” C ． “1sin 2 θ= ”是“30θ= ”的充分不必要条件 D ．若命题“p ?”与命题“p 或q ”都是真命题，那么命题q 一定是真命题 5．设b a b x g ax x f x x x +-=++=是奇函数，那么是偶函数，2 4)()110lg()(的值为 A ．1 B.－1 C ．－ 21 D ．2 1 6．如果)(x f '是二次函数, 且 )(x f '的图象开口向上,顶点坐标为(1,3), 那么曲线)(x f y =上任一点的切线的倾斜角α的取值范围是 第2题图

辽宁省沈阳市东北育才学校2018-2019学年高一上学期期中考试生物试题(含详细答案)

2018-2019学年度上学期期中考试高一年级生物试卷 答题时间：60分钟满分： 100分命题、校对：高一生物组一．选择题（共30小题，每小题2分，共60分） 1．关于线粒体的起源，科学家提出了一种解释：原始需氧细菌被一种真核生物细胞吞噬，并进化为宿主细胞内专门进行细胞呼吸的细胞器。以下证据不支持这一观点的是（）A．线粒体能像细菌一样进行分裂增殖 B．线粒体的多数蛋白质由核DNA指导合成 C．线粒体的内膜与细菌细胞膜成分相似 D．线粒体内存在环状DNA 2．下列关于实验方法的叙述，错误的是（） A．可使用生理盐水使哺乳成熟的红细胞吸水涨破 B．研究分泌蛋白的合成和运输时，可用3H标记氨基酸 C．可使用差速离心法将细胞匀浆中的细胞器分离开来 D．用模型构建的方法来制作细胞的三维结构模型 3．下列关于“用高倍镜观察细胞中的叶绿体和线粒体”实验的说法不正确的是（）A．健那绿是活细胞染料 B．观察叶绿体时要选用含叶绿体少而大的细胞C．菠菜叶片也能用来观察线粒体 D．藓类叶片可用来直接观察叶绿体 4．各种植物的花粉四处飞扬，却只有落在同种植物的柱头上才会萌发，落到其他植物的柱头上不会萌发。这与细胞膜的哪种成分有关（） A．糖脂B．磷脂C．糖蛋白D．胆固醇 5．不具膜结构的细胞器是？（） A．线粒体B．叶绿体C．内质网D．核糖体 6．台盼蓝（TB）是细胞活性染料，常用于检测细胞是否存活。活细胞不会被TB染成蓝色，而死细胞则会被染成蓝色。利用TB鉴别细胞活性的基本原理是（） A．死细胞与活细胞的组成成分不同 B．死细胞与活细胞的膜蛋白不同 C．活细胞的细胞膜可阻止TB的进入 D．活细胞能分解进入细胞内的TB 7．下列关于细胞结构与功能的描述，错误的是（） A．活细胞中的线粒体可以定向运动到代谢比较旺盛的部位

辽宁省沈阳市东北育才学校2019-2020学年高一(下)期中英语试卷%28word%2C答案%29

东北育才学校科学高中部线上教学阶段性检测高一年级英语学科 完成时间100分钟总分120分 第一部分阅读（共两节，满分50分］第一节（共15小题，每小题2.5分，总分37.5分） A You might have heard a lot about ancient towns and ancient cities in China.Here,we list several of the most beautiful ancient villages in China. Baoshan Stone City,Yunnan Province Baoshan Stone City was built on a huge mushroom-shaped rock,and only has about one hundred houses.The houses are laid out in an orderly way,built on the rock,and linked by stone steps.The Naxi people there still lead an original life and grow crops in terraces(梯田）；you can experience the colorful culture of the Naxi ethnic(民族的）group there. Tuvas Village in Kanas,Xinjiang Kanas Tuvas Village is near the mysterious Lake Kanas.The small village is located in a valley,and only has about 80 houses.These Swiss-style wooden houses are all surrounded by wooden fences.Tuvas is an ancient minority group.They traditionally lived as hunter-gathers.You can visit a local family,go herding(放牧）with the locals and experience the peaceful ancient village life. Jiaju Tibetan Village,Danba,Sichuan Province Jiaju Tibetan Village is known as the"Tibetan fairyland".It stands on a mountain slope,and consists of about 140 houses.These unique houses are all built with crown-shaped roofs,red eaves,and white walls,which make the houses look like little castles among the forest. Xijiang Miao Village,Guizhou Province If you re interested in the Miao Minority,Xijiang Miao Village can be a great destination for deepening your understanding of Miao history and culture.It's the largest Miao village in China,and now has 1432 households with a population of over 5000,of which 99.5%are Miao ethnic group.It's also famous for the houses built on stilts(支柱）of different heights. 1.What can you do in Kanas Tuvas Village? A.Hike in terraces. B.See houses of a foreign style. C.Go hunting with the locals. D.Learn about houses built on stilts. 2.Where can you admire the houses like castles? A.In Baoshan Stone City. B.In Kanas Tuvas Village.

辽宁省东北育才学校2020┄2021届高三第一次模拟考试化学试题

绝密★启用前试卷类型：A 辽宁省东北育才学校2021年高三第一次模拟考试化学试题本试卷共10页，27小题，满分150分。考试用时120分钟。 注意事项： 1．答卷前，考生务必用黑色字迹的钢笔或签字笔将自己的姓名和考生号、座位号分别填写在答题卡上，用2B铅笔将答题卡试卷类型（A）填涂在答题卡 上，并在答题卡右上角的“考试科目”栏将相应的科目信息点涂黑。 2．选择题每小题选出答案后，用2B铅笔把答题卡上对应题目的答案标号涂黑，如需改动，用橡皮擦干净后，再选涂其他答案，答案不能答在试卷上。 3．非选择题必须用黑色字迹的钢笔或签字笔作答，答案必须写在答题纸上各题目指定区域内相应位置上；如需改动，先划掉原来的答案，然后再写上新的 答案；不准使用铅笔和涂改液。不按以上要求作答的答案无效。 4．考生必须保持答题卡的整洁，考试结束后，将试卷和答题卡一并交回。 可能用到的原子量：C 12 H 1 O 16 S 32 N 14 Fe 56 Na 23 Ag 108 Cl 35.5 Br 79.9 Mg 24 Al 27 选项符合题意）一、选择题（本题包括9小题，每小题3分，共27分。每小题只有一个 ．．．． 1．2021年3月，温家宝指出“抓好资源节约，建设环境友好型社会”，这是我国社会和经济长期发展的重要保证。你认为下列行为与之相悖的是 A．研制对目标昆虫有毒杀作用的新型、可降解杀虫剂 B．大力发展农村沼气，将废弃的秸秆转化为清洁高效的能源 C．研制开发以水代替有机溶剂的化工涂料 D．以聚苯乙烯全面代替木材，生产包装盒、快餐盒等以减少木材使用，保护森林

2． 吸进人体内的氧有2%转化为氧化性极强的活性氧，这些活性氧能加速人体衰老，被称为“生命杀手”，中国科学家尝试用Na 2SeO 3清除人体内的活性氧，则Na 2SeO 3的作用是 Ａ． 还原剂 Ｂ． 氧化剂 Ｃ． 既是氧化剂又是还原剂 Ｄ． 以上均不是 3．在25℃时，浓度均为1 mol/L 的（NH 4）2SO 4、（NH 4）2CO 3、（NH 4）2Fe （SO 4）2（硫酸亚铁铵）三种溶液中，测得其中c （NH 4+）分别为 a mol/L 、b mol/L 、c mol/L ，则下列判断正确的是 A ．a ＞b ＞c B ．a ＞c ＞b C ．b ＞a ＞c D ．c ＞a ＞b 4．已知：t℃下的某一气态平衡体系中含有X （g ）、Y （g ）、Z （g ）、W （g ）四种物 质，此温度下发生反应的平衡常数表达式为：) ()()()(2 22 W c Z c Y c X c K ??=，有关该平衡的说法中 正确的是 A ．升高温度，平衡常数K 变大 B ．增大压强，W （g ）物质的量分数变大 C ．升温，若混合气体的平均相对分子质量变小，则正反应放热 D ．增大X 浓度，平衡向正反应方向移动 5．2021年北京奥运会主体育场——“鸟巢”，被《泰晤士报》评为全球“最强悍”工程。“鸟巢”运用了高强度、高性能的钒氮合金高新钢和884块ETFE 膜，并采用新一代的氮化镓铟高亮度LED 材料。下列有关说法正确的是 A ．合金的熔点通常比组分金属高，硬度比组分金属小 B ．用金属铝与V2O5反应冶炼钒，铝作还原剂 C ．已知Ga 处于ⅢA 族，可推知氮化镓化学式为Ga 3N 2 D ．ETF E 膜（ ）是由两种单体缩聚而成的 6．下列各组离子：（1） I 、ClO 、NO 3、Cl ； （2） K +、H +、NO 3、Cl ； （3）SO 32、S 2、Cl 、OH ； （4）Mg 2+、Cu 2+、SO 42、Cl ； （5）Fe 3+、