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江苏省南通市2021届高三英语上学期开学考试试题【含答案】

江苏省南通市2021届高三英语上学期开学考试试题【含答案】
江苏省南通市2021届高三英语上学期开学考试试题【含答案】

江苏省南通市2021届高三英语上学期开学考试试题

第I卷 (选择题,共85分)

第一部分:听力(共两节,满分20分)

做题时,先将答案标在试卷上。录音内容结束后,你将有两分钟的时间将试卷上的答案转涂到答题纸上。

第一节(共5小题;每小题1分,满分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 do we learn from the conversation?

A. The man hates to lend his tools to other people.

B. The man hasn’t finished working on the bookshelf.

C. The man lost those tools.

2. What do we know about the man?

A. He doesn’t like his job.

B. He will not give up his job.

C. He has a large family to support.

3. What’s the relationship between the two speakers?

A. Classmates.

B. Teachers and students.

C. Headmaster and teachers.

4. Who is worried about gaining weight?

A. The son.

B. Aunt Louise.

C. The mother.

5. Why doesn’t the woman buy the coat?

A. It is expensive.

B. There isn’t her size.

C. She doesn’t like the color.

第二节(共15小题;每小题1分,满分15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,回答第6、7题。

6. What is the woman probably?

A. A hotel clerk.

B. A house agent

C. A shop assistant.

7. What is the pillow filled with?

A. Cotton. C. Dried flowers. C. A special material. 听第7段材料,回答第8至9题。

8. What kind of skills does the woman not have?

A. Operating computers.

B. Doing business.

C. Typing.

9. Which company did the woman work in?

A. A trading company and a trust company.

B. A trust company.

C. A trading company.

听第8段材料,回答第10至12题。

10. What’s wrong with the woman’s mother?

A. She has been sick.

B. She misses her family and friends.

C. She can’t earn enough to support her family.

11. Where does the woman live?

A. In America

B. In India.

C. In Britain.

12. What does the woman plan to do next year?

A. Study a new language.

B. Travel to India.

C. Visi t her father’s native country.

听第9段材料,回答第13至16题。

13. How many Economics lectures will the man attend every week?

A. Five times, from Monday to Friday.

B. Two times, on Thursday and Friday.

C. Two times, on Tuesday and Thursday.

14. Why did the man miss the meeting for the new students yesterday?

A. Because he hadn’t received any notice about that meeting.

B. Because he had to attend the group discussion.

C. Because he had to do some part time jobs yesterday.

15. If a student wants to earn the scholarship, what is the required attendance rate?

A. 80%

B. 90%

C. 100%

16. Which of the following statements is NOT true according to the conversation?

A. The man is a grade one student in the university.

B. The man has to work after school.

C. The man thinks the time of the lecture is too early.

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 do the speakers seem to like most?

A. Busy.

B. Colorful.

C. Quiet.

第二部分英语知识运用(共两节,满分35分)

第一节单项填空(共15小题;每小题1分,满分15分)

请认真阅读下面各题,从题中所给的A、B、C、D四个选项中,选出最佳选项。21.—Do you think the weather will be fine this spring?

—No, we are fortunate. The weatherman forecasts there will be several sand storms.

A. if

B. as

C. though

D. unless

22.Newton is shown as a gifted scientist with every human weakness stood at the point in history magic ended and science began.

A. who; where

B. which; where

C. who; when

D. which; that

23.Now that energy prices are rising so rapidly, further prices are very uncertain, and the risk a new investment depending on them may fail is greater.

A. by which

B. of

C. that

D. in that

24.He tried to avoid making mistakes, but the added pressure caused him to make more than his usual .

A. size

B. space

C. share

D. state

25. —Have you heard that he was admitted into Beijing University?

—Is that true? I’m glad that his efforts at last _______.

A. worked out

B. paid off

C. turned out

D. paid for

26. He revisited his home village last month, and everything there_______his sweet memory of his childhood.

A. brought about

B. brought up

C. brought back

D. brought in

27. He_______writing the paper now. He hadn’t written a single word when I left him ten minutes ago.

A. shouldn’t be

B. can’t have finished

C. can’t be

D. mustn’t have finished

28.I think my father would like to know_______I’ve been up to so far, so I decide to send him a quick note.

A. which

B. what

C. why

D. when

29. —How would you like your coffee?

—_______

A. It’s well done.

B. Very nice. Thank you.

C. One cup, that’s enough.

D. The stronger, the better.

30. —Why hasn’t Jack come back yet? _______anything have happened to him?

—I’m not sure, but I guess something_______.

A.May; must have

B. Can; may have

C. Must; may

D. Should; might have

31. At the bad news, she was so sad_______I had to stay here keeping her_______.

A. that; companion

B. then; companies

C. that; company

D. and; accompany

32. Though it is 30 years_______we last met, I still remember the scene_______we got separated on a rainy day.

A. before; where

B. before; which

C. since; when

D. since; where

33. In my opinion, your composition is not as interesting as his but yours is_______in writing.

A. the best organized

B. better organized

C. so organized as

D. as organized as

34.—Could you possibly tell me what to do with such sort of situation?

—It’s no good asking me all the time, Anna. You’ll have to learn to think yourself.

A. of

B. to

C. by

D. for

35. We had no food left in our backpacks, and things worse, it began to pour.

A. making

B. to have made

C. having made

D. to make 第二节完形填空(共20小题;每小题1分,满分20分)

请认真阅读下面短文,从短文后各题所给的A、B、C、D四个选项中,选出最佳选项。

I used to believe in the American Dream, which meant a job, a mortgage(按揭), credit cards, success. I wanted it and worked toward it like everyone else, all of us 36 chasing the same thing.

One year, through a series of unhappy events, it all fell 37 . I found myself homeless and alone. I had my truck and $56. I 38 the countryside for some place I could rent for the 39 possible amount. I came upon a shabby house four miles up a winding mountain road 40 the Potomac River in West Virginia. It was 41 , full of broken glass and rubbish. I found the owner, rented it, and 42 a corner to camp in.

The locals knew nothing about me, 43 slowly, they started teaching me the 44 of being a neighbor. They dropped off blankets, candles, and tools, and began

45 around to chat. They started to teach me a belief in a 46 American Dream—not the one of individual achievement but of 47 .

What I had believed in, all those things I thought were 48 for a civilized life, were nonexistent in this place. 49 on the mountain, my most valuable possessions were my 50 with my neighbors.

Four years later, I moved back into 51 . I saw many people were having a really hard time, 52 their jobs and homes. I managed to rent a big enough house to 53 a handful of people. There a re four of us now in the house, but over time I’ve had nine people come in and move on to other places. We’d all be in54 if we hadn’t banded together.

The American Dream I believe in now is a shared one. It’s not so much about what I can get for myself; it’s about55 we can all get by together.

36. A. separately B. equally C. violently D. naturally

37. A. off B. apart C. over D. out

38. A. crossed B. left C. toured D. searched

39. A. fullest B. largest C. fairest D. cheapest

40. A. at B. through C. over D. round

41. A. occupied B. abandoned C. emptied D. robbed

42. A. turned B. approached C. cleared D. cut

43. A. but B. although C. otherwise D. for

44. A. benefit B. lesson C. nature D. art

45. A. sticking B. looking C. swinging D. turning

46. A. wild B. real C. different D. remote

47. A. neighborliness B. happiness C. friendliness D. kindness

48. A. unique B. expensive C. rare D. necessary

49. A. Up B. Down C. Deep D. Along

50. A. cooperation B. relationships C. satisfaction D. appointments

51. A. reality B. society C. town D. life

52. A. creating B. losing C. quitting D. offering

53. A. put in B. turn in C. take in D. get in

54. A. yards B. shelters C. camps D. cottages

55. A. when B. what C. whether D. how

第三部分阅读理解(共15小题;每小题2分,满分30分)

请认真阅读下列短文,从短文后各题所给的A、B、C、D四个选项中,选出最佳选项。

A

Shyness is the cause of much unhappiness for a great many people. Shy people are anxious and self-conscious; that is, they are concerned with their own appearance and actions too much. Negative thoughts are constantly occurring in their minds: What kind of impression am I making? Do they like me? Do I sound stupid? Am I wearing unattractive clothes?

It is obvious that such uncomfortable feelings must affect people unfavorably.

A person’s self-concept is reflected in the way he or she behaves and the way a person behaves affects other people’s reactions. In general, the way people think about themselves has a deep effect on all areas of their lives.

Shy people, who have low respect, are likely to be passive and easily influenced by others. They need faith that they are doing“the right thing”. Shy people are very sensitive to criticism. It makes them feel inferior (自卑). They also find it difficult to be pleased by praises because they believe they are unworthy of praise.

A shy person may respond to a praise with a statement like this one: “You’re just saying that to make me feel good, I know it’s not true.”It is clear that, while self-awareness is a healthy quality, overdoing it is harmful.

Can shyness be completely got rid of, or at least reduced? Fortunately, people can overcome shyness with determination since shyness goes hand in hand with lack of self respect. It is important for people to accept their weakness as well as their strengths. Each one of us has his or her own characteristics. We are interested in our own personal ways. The better we understand ourselves, the easier it becomes to live up to our chances for a rich and successful life.

56. The first paragraph is mainly about .

A. the cause of shyness

B. the effect of shyness on people

C. the feelings of shy people

D. the questions in the minds of shy people

57. According to the writer, self-awareness is______.

A. harmful to people

B. a weak point of shy people

C. the cause of unhappiness

D. a good characteristic

58. What is the shy people’s reaction to praise?

A. They are pleased by it.

B. They feel it is not true.

C. They are very sensitive to it.

D. They feel they are worthy of it.

59. We can learn from the passage that shyness can .

A. block our chances for a successful life

B. help us to live up to our full development

C. enable us to understand ourselves better

D. have nothing to do with lack of self-respect

B

July 27th, 2010 was a typical English summer’s day—it rained for 24 hours! As usual, I rushed home from work at midday to check on the house. Nothing was amiss. By the time I left work at 5pm, however, the road into our village was flooded. Our house had never been flooded but, as I opened the front door, a wave of water greeted me. Thank God the kids weren’t with me, because the house was 5 feet deep in water. We lost everything downstairs.

At first we tried to push on through. We didn’t want to move the children out of home, so we camped upstairs. We put a sheet of plastic across the floor to protect us from the damp. But after three months, we felt very sick, so we moved to a wooden house in a park. The house was small, but at first we were all just delighted to be in a new place. Unfortunately, things took longer than expected and we were there

for 10 months. The life there was inconvenient. What surprised me most was how much I missed being part of a community (社区). We had lived in a friendly village with good neighbours, and I’d never thought how much I’d miss that.

Although o ur situation was very hard, it’s difficult to feel too sorry for yourself when you look at what’s happening elsewhere. I watched a news report about floods in Northern India and thought, “We didn’t have a straw hut (茅草房) that was swept away, and our house is still standing. We’re lucky.”

We moved back home in August. With December coming, there’s still reconstruction work to be done, so it’s difficult to prepare for Christmas. But I can’t wait—I’m going to throw a party for our friends in the village to say thanks for their support. This year, I won’t need any gifts—living away from home for months has made me realize how little we actually need or miss all our possessions. Although we are replacing things, there’s really no rush—we have our home back, and t hat’s the main thing.

60. The underlined word “amiss” in the first paragraph means.

A. wrong

B. missing

C. right

D. difficult

61. Why does the author say that they were lucky in the third paragraph?

A. Because they were able to move to a new place.

B. Because many other places were flooded.

C. Because their straw hut was not swept away.

D. Because some others suffered even more.

62. It can be inferred from the text that the author .

A. was sick of staying upstairs

B. cared much about her children

C. could not stand living in a wooden house

D. did not deal well with her family affairs during the flood

63. What does the author mainly want to express by telling herstory?

A. She valued human feelings more than before.

B. She realized she a lmost didn’t need possessions.

C. She found Christmas gifts no longer badly needed.

D. She thought her own home was the most important.

C

Babies are born yogis. Once we were all able to pull our toes up by our ears and laugh about it. Then we aged, got injured, and began carrying stress in our shoulders and back. In short, we lost our balance.

Yoga (瑜伽) is an ancient practice that helps create a sense of union in body, mind, and spirit. It brings us balance. I was seriously out of balance when I started practicing yoga in 1999. I had plantar fascitis (足底筋膜炎) in both feet, and my doctor had warned me against all the things I loved to do: walking, hiking, and playing tennis. I was desperate for exercise. Yoga became my salvation (拯救) and even enhanced my other fitness activities. I practice yoga at least twice a week, but I consider yoga to be part of my daily life because after a while you no longer just practice yoga—you love it.

Yoga becomes part of your physical life. Your body grows stronger, more toned, and more flexible as you move from one pose to the other. I spent a week in Mexico at a yoga retreat (静修), and it was the first vacation on which I lost weight. “Rather than building muscle, yoga builds muscle tone,” says Shakta Kaur Khalsa, author of the K. I. S. S. Guide to Yoga. “Because yoga helps maintain a balanced metabolism (新陈代谢), it also helps to regulate weight. Additionally, yoga stretches muscles lengthwise, causing fat to be removed around the cells.” I do yoga poses throughout the day. After hours at my computer, I stretch my stiff shoulders and arms. When I need a boost of energy, I do energizing poses. When I am feeling exhausted at the end of the day, I do restorative poses.

Yoga becomes part of your mental life. Yoga teaches you to focus on breathing while you hold the poses. This attention to breath is calming; it dissolves stress and anxiety. I use yogic breathing on the tennis courts, in the dentists chair, and in traffic jams. You should always leave a yoga practice feeling energized, not tired. If you feel tired after yoga, it means you spent the time “fighting” yourself, trying to force yourself into poses. In yoga, you “surrender” to the pose by letting go of the tension.

Yoga becomes part of your spiritual life. Yoga is practiced by people from all religions; it is not restricted to any religious group. Yoga teaches “right” living in how we deal with ourselves and others. As I work on a difficult pose, I learn patience, forgiveness, and the value of gentleness. Yoga advocates proper eating, but you don’t have to be a vegetarian to practice yoga.

64. What would be the best title for this passage?

A. What’s Yoga?

B. How I Do Yoga Poses

C. The Benefits of Yoga

D. The Varieties of Yoga

65. According to the third paragraph, yoga can help people .

A. grow taller

B. lose weight

C. become flexible in thinking

D. make more friends

66. People feel tired after yoga because .

A. they consume energy in practicing yoga

B. they respond well to yoga poses

C. they spend too much time on yoga

D. they force themselves into yoga poses

67. If this passage continues, what will the writer most probably write about in the next paragraph?

A. Yoga as a means to keep fit.

B. Different yoga poses.

C. Popularity of yoga all over the world.

D. Encouraging people to do yoga.

D

A research by the National Center for Health Statistics is seen as an important confirmation of the “Hispanic mortality paradox(西班牙裔死亡率悖论).”

On average, Hispanics outlive whites by 2.5 years and blacks by 7.7 years. Their

life expectancy at birth in 2006 was 80.6 years, compared with 78.1 for whites, 72.9 for blacks and 77.7 years for the total population.

The report shows that the Hispanic population has higher life expectancy at birth and at almost every age despite a socioeconomic status lower than that of whites. “Mortality is very correlated with income, education and health care access,” says Elizabeth Arias, author of the report. “You would expect the Hispanic population would have higher mortality, in line with t he black population.”

The Hispanic paradox has been documented for more than two decades, but this is the first time the government has had enough data to issue national numbers. Researchers are struggling to explain why Hispanics live longer.

“We don’t know,” says David Hayes-Bautista, director of the Center for the Study of Latino Health and Culture at UCLA’s David Geffen School of Medicine. “We thought it was a problem in the data, but we can pretty much say this is real.”

Potential factors:

·Culture a nd lifestyle. Support from extended family and lower rates of smoking and drinking. Latino groups in particular have very strong family and social ties.

·Migration. The “healthy migrant effect” argues that healthy people are more likely to emigrate. And when immigrants become ill, they might return home and die there.

“Solving the puzzle may help the nation deal with health care issues because Hispanics use health services less—they make fewer doctors visits and spend less time in hospitals,” Hayes Bautista says. “It’s clearly something in the Latino culture,” he says.

68. In 2006, Hispanics’ life expectancy is years longer than the average of the total population.

A. 2. 5

B. 7. 7

C. 2. 9

D. 80. 6

69. What does the underlined word “outlive” in the second paragraph probably mean?

A. To live longer than. . .

B. To live shorter than. . .

C. To die out.

D. To expect to live.

70. What is the main idea of paragraph three?

A. Hispanics were born better than whites.

B. Morality is closely related with health care access.

C. Whites should have longer life expectancy.

D. Even experts can’t explain the phenomenon.

第四部分任务型阅读(共10小题;每小题1分,满分10分)

请认真阅读下面短文,并根据所读内容在文章后表格中的空格里填入一个最恰当的单词。

注意:每个空格只填一个单词。

Count your blessings (祝福), we’re told, but it’s just not in our nature. We’d rather count our problems. We’re so used to focusing on bad news that we tend to pay no attention to what’s going well. As soon as we solve one problem, we take the progress for granted and find a new cause for alarm. Every now and again it doesn’t hurt to think how good we have it. Start counting:

1. Free time

As much as we complain about being busy, the typical American has more free time than ever—more than five hours per day. If you feel too busy, it’s probably only becau se you’re doing so many other things than work. Experts say there’ll be even more free time in the future.

2. Peace

Wars and terrorist attacks will always make headlines, but it’s remarkable how many of the world’s 6. 7 billion people now live in peace. In recent decades, though the population has been growing, the number of wars around the world has declined.

In some earlier generations, a quarter of the male population died violent deaths. Over the past century, even counting the world wars, a person’s chance of dying from war was less than 2 percent.

3. American dream

While some people are struggling to keep their homes, the vast majority of Americans still have plenty to be thankful for when they walk through the front door.

In 1950 the typical new American house had one floor with 1,000 square feet, two bedrooms, and one bathroom—and even that bungalow was beyond many people’s means. Today, more than two thirds of Americans own their homes, and the typical new house has two floors, at least three bedrooms, two and a half baths, and more than 2, 200 square feet of space for the family.

4. The reader’s revolution

In 1970 barely half the people in the world were literate, and many of them could afford only a few books. Today, more than 80 percent of t he world’s people can read, and 22 percent have access to the greatest library in history. The Web provides classic books and reference works free of charge.

5. More wilderness

Once you travel beyond the cities, you’ll find plenty of open space and peace ful forests. Many of the woodlands cleared by settlers have returned now that the land is no longer needed for agriculture.

6. The modern cars

Cars give off greenhouse gases and create maddening traffic jams, but consider what else they do. Compared with the models on the road in 1970, today’s cars burn less gasoline per mile and emit 98 percent fewer pollutants. That’s why, despite the doubling of the number of cars, there’s much less smog in the air. The basic car today offers more comforts and safety than the luxury (豪华) cars of old.

81.请认真阅读下面短文,并按照要求用英语写一篇150词左右的文章。

和睦的家庭有利于孩子的个性发展和家人的身心健康。请你根据表格中的信息和自身的感受,以How we can build up a harmonious family 为题用英语写一篇短文。

注意:1. 对所有要点逐一陈述,适当发挥,不要简单翻译。

2. 词数150左右,开头已经写好,不计入总词数。

3. 作文中不得提及有关考生个人身份的任何信息,如校名、人名等。

How we can build up a harmonious family

A harmonious family is essential to our personal development and our physical and mental health.

______________________________________________________________________

______________________________________________________________________

______________________________________________________________________

江苏省2021届第一学期高三年级开学检测(1)

英语试题参考答案 2020.08.13 第一部分:听力(共两节,满分20分)

1-5CBACB 6-10BCCAC 11-15ABCAB 16-20CBCAB

第二部分:英语知识运用(共两节,满分35分)

第一节单项填空(共15小题;每小题1分,满分15分)

21-25DACCB 26-30CBBDB 31-35CDBDD

第二节完形填空(共20小题;每小题1分,满分20分)

36-40 ABDDC 41-45 BCADA 46-50 CADAB 51-55 CBCBD

第三部分:阅读理解(共15小题;每小题2分,满分30分)

56-60BDBAA 61-65DBACB 66-70DDCAD

第四部分:任务型阅读(共10小题;每小题1分,满分10分)

71. ignore 72. alarm 73. time 74. growth 75. reach 76. available 77. way 78. efficient 79. safer 80. comfortable

第五部分:书面表达(满分25分)

How we can build up a harmonious family

A harmonious family is essential to our personal development and our physical and mental health. A harmonious family is always full of warmth, love and laughter. Parents and children love and show concern for each other. They also respect and understand each other. If a child grows up in a harmonious family, he is more likely to be cheerful and optimistic. Otherwise, he may be miserable and pessimistic. Meanwhile, parents in a harmonious family are sure to live happily and more healthily.

Since a harmonious family plays a very important role in our life, it is up to every family member to contribute to the building of such a family. First of all, parents should be a role model for their children and pay more attention to their own words and behavior. Besides, they must trust their children and often communicate with them.

As children of the family, we should also respect and understand our parents, and try to share their burdens. If we do so, our home will always be harmonious. (157W)

江苏 - 南通目前已开通的手机号段

江苏 - 南通目前已开通的手机号段130联通号段 (共54个) 计算得出南通联通130号段共有超过54万个手机号(计算方式:号段数*万门 54*10000=540000) 1300353 1300355 1300356 1300357 1300358 1300359 1301676 1301677 1301678 1301679 1302353 1302355 1302356 1302357 1302358 1302359 1303356 1303357 1304670 1304671 1304672 1304673 1304674 1304675 1304676 1304677 1304678 1305700 1305701 1305702 1305703 1305704 1305705 1305706 1305707 1305708 1305709 1306355 1306356 1306357 1306358 1306359 1307320 1307321 1307322 1307323 1307324 1307325 1307326 1307327 1307328 1307329 1308356 1308357 131联通号段 (共44个) 计算得出南通联通131号段共有超过44万个手机号(计算方式:号段数*万门 44*10000=440000) 1310194 1310198 1310199 1314172 1314173 1314174 1314265 1314266 1314267 1314268 1314269 1314290 1314291 1314292 1314293 1314294 1314295 1314296 1314297 1314298 1314299 1316036 1316037 1316038 1316039 1316049 1316745 1316746 1316747 1316748 1316749 1318247 1318248 1318249 1318650 1318651 1318652 1318653 1318654 1318655 1318656 1318657 1318658 1318659

【生物】江苏省南通市、泰州市2020届高三上学期期末考试

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江苏省南通市如皋市2019-2020学年九年级(上)期中数学试卷

2019-2020学年九年级(上)期中数学试卷 一、选择题(本大题共10小题,每小题3分,共30分,在每小题给出的四个选项中,恰 有一项是符合题目要求的,请将正确选项前的字母代号填涂在答题纸相应位置上) 1.抛物线y=﹣3(x﹣1)2+6的顶点坐标为() A.(1,6)B.(1,﹣6)C.(﹣1,﹣6)D.(﹣1,6) 2.如果反比例函数y=(a是常数)的图象在第一、三象限,那么a的取值范围是()A.a<0 B.a>0 C.a<2 D.a>2 3.如图,在⊙O中,所对的圆周角∠ACB=50°,则∠AOB的度数为() A.50°B.100°C.120°D.150° 4.如图,在半径为5cm的⊙O中,弦AB=6cm,OC⊥AB于点C,则OC的值为() A.6cm B.5cm C.4cm D.3cm 5.要将抛物线y=x2平移后得到抛物线y=x2﹣6x+21,下列平移方法正确的是()A.向右平移6个单位长度,再向下平移3个单位长度 B.向右平移6个单位长度,再向上平移3个单位长度 C.向左平移6个单位长度,再向下平移3个单位长度 D.向左平移6个单位长度,再向上平移3个单位长度 6.若点(﹣1,y1),(2,y2),(3,y3)在反比例函数y=(k<0)的图象上,则y1,y2,y3的大小关系是() A.y1>y2>y3B.y3>y2>y1C.y1>y3>y2D.y2>y3>y1 7.如图,PA、PB为圆O的切线,切点分别为A、B,PO交AB于点C,PO的延长线交圆O

于点D,下列结论不一定成立的是() A.PA=PB B.∠BPD=∠APD C.AB⊥PD D.AB平分PD 8.在同一平面直角坐标系中,若抛物线y=x2+(2m﹣1)x+2m﹣4与抛物线y=x2﹣(3m+n)x+n关于y轴对称,则符合条件的m,n的值为() A.m=1,n=﹣2 B.m=5,n=﹣6 C.m=﹣1,n=6 D.m=,n=﹣ 9.如图,四边形ABCD是半圆的内接四边形,AB是直径,=.若∠C=110°,则∠ABC的度数等于() A.55°B.60°C.65°D.70° 10.二次函数y=ax2+bx+c(a,b,c是常数,a≠0)的自变量x与函数值y的部分对应值如下表: 且当x=﹣时,与其对应的函数值y>0,有下列结论:①函数图象的顶点在第四象限内;②﹣2和3是关于x的方程ax2+bx+c=t的两个根;③0<m+n<,其中,正确结论的是() A.①②③B.①②C.①③D.②③ 二、填空题(本大题共8小题,113题,每小题3分,1418题,每小题3分,共29分,不 需要写出解答过程,请把答案直接填写在答题纸相应位置上) 11.二次函数y=﹣2x2﹣4x+5的最大值是.

【解析】江苏省南通市、泰州市2019-2020学年高三上学期第一次调研考试数学试题

2019-2020南通、泰州高三第一次调研试卷 一、填空题:本大题共14小题,每小题5分,共计70分.请把答案填写在答题卡...相应位置上..... . 1.已知集合{1,0,2}A =-,{1,1,2}B =-,则A B =_____. 答案:{1,2}- 解:因为{1,0,2}A =-,{1,1,2}B =-,所以{1,2}A B =- 2.已知复数z 满足(1)2i z i +=,其中i 是虚数单位,则z 的模为_______. 解:22(1)11(1)(1) i i i z i i i i -===+++-,则||z 3.某校高三数学组有5名党员教师,他们一天中在“学习强国”平台上的学习积分依次为35,35,41,38,51,则这5名党员教师学习积分的平均值为______. 答案:40 解:3535413851405 ++++= 4.根据如图所示的伪代码,输出的a 的值为______. 答案:11 解:模拟演示: 1,1a i == 2,2a i == 4,3a i == 7,4a i == 11,5a i ==此时输出11a = 5.已知等差数列{}n a 的公差d 不为0,且1a ,2a ,4a 成等比数列,则 1a d 的值为____. 答案:1 解:由题意得:2214a a a =?,则2111()(3)a d a a d +=?+,整理得1a d =,所以 11a d =

6.将一枚质地均匀的硬币先后抛掷3次,则恰好出现2次正面向上的概率为___. 答案:38 解:223113()()228P C =??= 7.在正三棱柱111ABC A B C -中,12AA AB ==,则三棱锥111A BB C -的体积为____. 解:11 2232V =???= 8.已知函数()sin()3f x x πω=-(0)ω>,若当6x π=时,函数()f x 取得最大值,则ω的最小值为_____. 答案:5 解:由题意得:2632k ωπ π π π-=+,k z ∈,则512k ω=+,k z ∈,因为0ω>,所以 当0k =时ω取得最小值,即5ω= 9.已知函数2()(2)(8)f x m x m x =-+-()m R ∈是奇函数,若对于任意的x R ∈,关于x 的不等式2(+1)()f x f a <恒成立,则实数a 的取值范围是____. 答案:1a < 10.在平面直角坐标系xOy 中,已知点,A B 分别在双曲线22:1C x y -=的两条渐近线上,且双曲线C 经过线段AB 的中点,若点A 的横坐标为2,则点B 的横坐标为_____. 答案:12 11.尽管目前人类还无法准确预报地震,但科学家通过研究,已经对地震有所了解,例如.地震时释放出的能量E (单位:焦耳)与地震里氏震级M 之间的关系为lg 4.8 1.5E M =+.2008年5月汶川发生里氏8.0级地震,它释放出来的能量是2019年6月四川长宁发生里氏6.0级地震释放出来能量的____倍. 答案:1000

江苏省南通市如皋市九年级(上)期末物理试卷

江苏省南通市如皋市九年级(上)期末物理试卷 一、选择题(共10小题) 1.(2分)地球上下列能源中实质上来自于太阳能的是() A.核能B.地热能C.潮汐能D.水能 2.(2分)下列说法正确的是() A.把零下10℃的冰块放在0℃的冰箱保鲜室中,一段时间后,冰块的内能会增加 B.因为水的比热容较大,所以沿海地区比内陆地区昼夜温差大 C.用锯条锯木板,锯条的温度升高,是由于锯条从木板吸收了热量 D.我们不敢大口地喝热气腾腾的汤,是因为汤含有的热量较多 3.(2分)如下图所示,1kW?h的电能能使下列家用电器连续工作大约20小时的是()A.电风扇B.节能灯 C.液晶电视机D.电饭煲 4.(2分)为了保证司乘人员的安全,轿车上设有安全带未系提示系统,当乘客坐在座椅上未系安全带时,仪表盘上的指示灯亮起提示。其工作原理为:当乘客坐在座椅上时,座椅下的开关S1闭合。 (1)若未系安全带,开关S2断开,指示灯亮起; (2)若系上安全带,开关S2闭合,指示灯熄灭。 下列设计符合上述要求的电路图是() A.B. C.D.

5.(2分)一小球在点1静止释放,经过最低点2后,上升到最高点3后返回,如图所示。 在此过程中() A.小球在点1、2、3具有相同的机械能 B.小球每次经过点2的动能都相同 C.小球在点3的动能为零 D.小球从点2上升到点3,减少的动能全部转化为势能 6.(2分)我国未来的航母将采用自行研制的电磁弹射器,如右图所示,电磁弹射器的弹射车与飞机前轮连接,并处于强磁场中,当弹射车内的导体通以强电流时,即可受到强大的推力,下列实验中,与电磁弹射器工作原理一致的是() A.B. C.D. 7.(2分)家庭电路因过热容易引发火灾,发生过热的原因不可能是()A.某处接触不良B.超负荷运行 C.用电器发生短路D.开关处发生短路 8.(2分)如图所示的电路中,R0是定值电阻,L是小灯泡,R是滑动变阻器,闭合开关S1,发现无论怎样移动滑动变阻器的滑片,小灯泡都不发光,现用一只电压表检测这一现象产生的原因,当电压表接ab两点时,电压表有示数但很小;接ac两点时,电压表示数较大,则产生上述现象的原因可能是()

2019-2020学年江苏省南通市如皋市九年级(上)期中数学试卷试题及答案(Word解析版)

2019-2020学年江苏省南通市如皋市九年级(上)期中数学试卷一、选择题(本大题共10小题,每小题3分,共30分,在每小题给出的四个选项中,恰有一项是符合题目要求的,请将正确选项前的字母代号填涂在答题纸相应位置上) 1.(3分)抛物线y=﹣3(x﹣1)2+6的顶点坐标为() A.(1,6)B.(1,﹣6)C.(﹣1,﹣6)D.(﹣1,6)2.(3分)如果反比例函数y(a是常数)的图象在第一、三象限,那么a的取值范围是() A.a<0B.a>0C.a<2D.a>2 3.(3分)如图,在⊙O中,所对的圆周角∠ACB=50°,则∠AOB的度数为() A.50°B.100°C.120°D.150° 4.(3分)如图,在半径为5cm的⊙O中,弦AB=6cm,OC⊥AB于点C,则OC的值为() A.6cm B.5cm C.4cm D.3cm 5.(3分)要将抛物线y x2平移后得到抛物线y x2﹣6x+21,下列平移方法正确的是()A.向右平移6个单位长度,再向下平移3个单位长度 B.向右平移6个单位长度,再向上平移3个单位长度 C.向左平移6个单位长度,再向下平移3个单位长度 D.向左平移6个单位长度,再向上平移3个单位长度 6.(3分)若点(﹣1,y1),(2,y2),(3,y3)在反比例函数y(k<0)的图象上,则y1,y2,y3的大小关系是() A.y1>y2>y3B.y3>y2>y1C.y1>y3>y2D.y2>y3>y1 7.(3分)如图,P A、PB为圆O的切线,切点分别为A、B,PO交AB于点C,PO的延长

线交圆O于点D,下列结论不一定成立的是() A.P A=PB B.∠BPD=∠APD C.AB⊥PD D.AB平分PD 8.(3分)在同一平面直角坐标系中,若抛物线y=x2+(2m﹣1)x+2m﹣4与抛物线y=x2﹣(3m+m)x+n关于y轴对称,则符合条件的m,n的值为() A.m=1,n=﹣2B.m=5,n=﹣6 C.m=﹣1,n=6D.m,n 9.(3分)如图,四边形ABCD是半圆的内接四边形,AB是直径,.若∠C=110°,则∠ABC的度数等于() A.55°B.60°C.65°D.70° 10.(3分)二次函数y=ax2+bx+c(a,b,c是常数,a≠0)的自变量x与函数值y的部分对应值如下表: 且当x时,与其对应的函数值y>0,有下列结论:①函数图象的顶点在第四象限内; ②﹣2和3是关于x的方程ax2+bx+c=t的两个根;③0<m+n<,其中,正确结论的 是() A.①②③B.①②C.①③D.②③ 二、填空题(本大题共8小题,113题,每小题3分,1418题,每小题3分,共29分,不需要写出解答过程,请把答案直接填写在答题纸相应位置上) 11.(3分)二次函数y=﹣2x2﹣4x+5的最大值是.

江苏省南通市、泰州市2020届高三上学期期末考试+地理+Word版含答案

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2019年江苏省南通市如皋市高考数学一模试卷

2019年江苏省南通市如皋市高考数学一模试卷 参考公式 样本数据x 1,x 2,…,x n 的方差s 2 =1n ∑i =1n (x i -x )2 ,其中x =1n ∑i =1 n x i . 棱柱的体积V =Sh ,其中S 是棱柱的底面积,h 是高. 棱锥的体积V =1 3Sh ,其中S 是棱锥的底面积,h 是高. 一、填空题(本大题共14小题,每小题5分,共70分.请把答案填写在题中横线上) 1.设复数z a b =+i (,∈a b R,i 为虚数单位),若(43z =+i)i ,则ab 的值是 . 2.已知集合{}{}|0,|2U x x A x x =>=≥,则U A =e . 3. 某人随机播放甲、乙、丙、丁4首歌曲中的2首,则甲、乙2首歌曲至少有1首被播放的概率是 . 4. 如图是一个算法流程图,则输出的k 的值是 . 5.为调査某高校学生对“一带一路”政策的了解情况,现采用分层抽样的方法抽取一个容量为500的样 本,其中大一年级抽取200人,大二年级抽取100人.若其他年级共有学生3000人,则该校学生总人数是 . 6.设等差数列{}n a 的前n 项和为n S ,若公差52,10d a ==,则10S 的值

是 . 7.在锐角ABC ?中,3,4AB AC ==,若ABC ?的面积为BC 的长是 . 8.在平面直角坐标系xOy 中,若双曲线()2 2210x y a a -=>经过抛物线28y x =的焦 点,则该双曲线的离心率是 . 9. 已知圆锥的侧面展开图是半径为3,圆心角为23 π 的扇形,则这个圆锥的高为 . 10.若直线2y x b =+为曲线x y e x =+的一条切线,则实数b 的值是 . 11.若正实数,x y 满足1x y +=,则 4 y x y +的最小值是 . 12.如图,在直角梯形ABCD 中,//,90,3,2AB DC ABC AB BC DC ∠====,若 ,E F 分别是线段DC 和BC 上的动点,则AC EF ?的取值范围是 . 13. 在平面直角坐标系xOy 中,已知点()0,2A -,点()1,1,B P -为圆222x y +=上一动点,则 PB PA 的最大值是 . 14.已知函数()3,3,x x a f x x x x a ≥?=?-

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