当前位置:文档之家› 2019-2020学年江苏省沭阳县修远中学、泗洪县洪翔中学高一12月联考英语试题

2019-2020学年江苏省沭阳县修远中学、泗洪县洪翔中学高一12月联考英语试题

2019-2020学年江苏省沭阳县修远中学、泗洪县洪翔中学高一12月联考英语试题
2019-2020学年江苏省沭阳县修远中学、泗洪县洪翔中学高一12月联考英语试题

2019—2020学年度第一学期第二次阶段测试

高一英语试题

(试卷分值:150分,考试时间:120分钟)

第I卷选择题(三部分, 共110分)

第一部分:听力第一节(共20小题;每小题1.5分,满分30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.Take a week off. B.Apply for a job. C.Cancel a holiday plan. 2.How much does the man need to pay?

A.$4. B.$8. C.$12.

3.Where does the conversation take place?

A.At home. B.In a clinic. C.In a store.

4.What is the man doing?

A.Looking for a car. B.Visiting a company. C.Picking up the woman. 5.Whom has the man sent an invitation to?

A.Rosa. B.Laura. C.Maria.

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。

听第6段对话,回答第6、7题。

6.What will the man do for the woman?

A.Pay for her gloves. B.Bring her some ink. C.Get her a new book. 7.Where are the two speakers now?

A.In a book store. B.In a classroom. C.At home.

听第7段对话,回答第8、9题。

8.What are the speakers going to do after lunch?

A.See a film. B.Go shopping. C.Attend a meeting. 9.Which restaurant will the speakers go to?

A.Jim’s Café.B.Rose Restaurant. C.Seafood Palace.

听第8段对话,回答第11至12题。

10.How long has the woman been unwell?

A.4 days. B.5 days. C.6 days.

11.What is the relationship between the speakers?

A.Colleagues. B.Doctor and patient. C.Teacher and student. 12.What does the man suggest the woman do?

A.Look for a new job.

B.Do physical tests regularly.

C.Change her breakfast habits.

听第9段对话,回答第13至16题。

13.What do we know about Lance Sterling?

A.He is voiced by Tom Holland.

B.He is handsome and skilled.

C.He isn’t good at socializing.

14.Which movie will the man watch this evening?

A.Spies in Disguise. B.Men in Black. C.Spider-Man: Homecoming. 15.Who has a great mind?

A.Will Smith. B.Tom Holland. C.Walter.

16.What time is it now?

A.5:00 pm. B.6:00 pm. C.7:00 pm.

听第10段独白,回答第17至20题。

17.What does the speaker usually do first after getting up?

A.Do physical exercise. B.Prepare his breakfast. C.Read morning papers. 18.What subject does the speaker like best?

A.Science. B.Math. C.Physics.

19.Why doesn’t the speaker go back home right after school?

A.To do his homework. B.To watch a football game. C.To play sports with others.

20.What is the speaker mainly talking about?

A.His weekly schedule. B.His daily life as a student. C.His colorful school activities.

第二部分:单项选择(共10小题;每小题1分,满分10分)

21.Your parents always arrange everything for you, but since you're no longer a child, you should learn to be ________ them.

A.grateful to B.independent of C.different from D.satisfied with 22.According to the media, after the museum opened to the public, the number of visitors every day reached 30, 000 __________.

A.in all B.at all C.as a whole D.on average 23.Many people who had seen the film The Shallonws were afraid to go to the sea when they remembered the scenes ________ Nancy was attacked by a shark.

A.that B.by which C.which D.in which 24.—How about meeting at eight o'clock outside the cinema?

—That ________ me fine.

A.fits B.meets C.matches D.suits

25.It is illegal for a public official to ask people for gifts or money _____ favors to them. A.in preference to B.in place of C.in exchange for D.in agreement with 26.---I’m sure Andrew will win the first prize in the final.

---I think so. He _____ for it months.

A.is preparing B.has been preparing C.was preparing D.had been preparing 27.--- When will the party be held?

--- It is still _____.

A.making preparation B.making preparations

C.in preparation D.in preparations

28.He ______ cards, but now he is used to ______ a walk after supper.

A.used to play; take B.was used to play; taking

C.used to play; taking D.was used to playing; take

29.I don’t like the way ______ you speak to your mother but I like the way ______ you think of to solve the problem.

A.which, which B.in which, in which

C.不填, that D.不填, in which

30.—Did Peter fix the computer himself?

—He _______,because he doesn’t know much about computers.

A.has it fixed B.had fixed it C.had it fixed D.fixed it

第三部分: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A、B、C和D四个选项中,选出可以填入空白处的最佳选项。

I had a quick thirty-minute stopover in Detroit before heading home to Toronto. After

31 up the passage, I realized that my gate was on the opposite end of the airport. Luckily,

I got there with five minutes to 32 and stood waiting to be called.

I was tired and had an emergency 33 scheduled after I was home. But then came the 34 , “It seems we have overbooked the flight. Would anyone volunteer to stay for the 35 departure?” There were 100-plus people and not a 36 person responded.

The next flight was in four hours. I 37 and saw businessmen needing to get home for work, moms to see their kids, kids to see their friends, and more 38 , I saw people that needed to be helped. Even though I 39 to be home just as much as anyone, something inside me said that I should volunteer and offer some 40 to this group of strangers. The gate attendant had said that the flight couldn’t board 41 someone volunteered.

I picked up my bag, 42 the desk and said to the gate attendant, “I volunteer!” A

43 smile spread over her face.

As she was 44 my ticket, I got my meeting rescheduled. All the 45 boarding their flight, I was happy that I had been able to 46 .

When boarding the plane, I was surprised to discover that I was 47 to be seated in first class. How 48 I was for everything that had happened. I gave with the intention to serve others, with no thought of 49 , and that kindness was 50 to me with an upgrade to first class!

31. A. driving B. wandering C. rushing D. setting

32. A. take B. waste C. last D. spare

33. A. call B. meeting C. treatment D. case

34. A. requirement B. incident C. announcement D. reply

35. A. later B. direct C. earlier D. first

36. A. normal B. particular C. single D. nice

37. A. set off B. looked around C. stood by D. ran out

38. A. seriously B. willingly C. approximately D. importantly

39. A. agreed B. demanded C. wanted D. refused

40. A. kindness B. money C. guidance D. comfort

41. A. once B. until C. although D. because

42. A. left B. approached C. cleared D. tapped

43. A. ready B. forced C. relieved D. shy

44. A. processing B. holding C. booking D. checking

45. A. kids B. businessmen C. volunteers D. passengers

46. A. help B. speak C. rest D. leave

47. A. permitted B. required C. advised D. arranged

48. A. anxious B. grateful C. responsible D. suitable

49. A. praise B. loss C. award D. reward

50. A. returned B. delivered C. introduced D. shown

第四部分:阅读理解(共20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)

A

Visit one of the most outstanding prehistoric sites in the United Kingdom, and enjoy amazing historic English attractions. Please notice that every tour starts and ends in London. Have a tour with visiting Britain.

Stonehenge Direct Tour

Visit one of the most outstanding prehistoric sites in England and in the world: Stonehenge.

Duration:1 day

Price:Adults £29.99, Children £28.99

Stonehenge and Bath Tour

Enjoy a late breakfast before heading to the Stonehenge site and end your day with an original visit to the Roman Baths.

Duration:10 hours (departure 10:30 a. m.,return 8:30 p. m.)

Price:Adults £64, Children £60

Stonehenge, Bath and Windsor Castle Tour

Explore three of England's most popular sites to visit: Windsor Castle, Stonehenge and the Roman Baths.

Duration:1 day (return 8:30 p. m.)

Price:Adults £64.80, Children £61.20

Stonehenge, Lacock and Bath Tour

Come and feel the warmth of Bath, see the pleasant village of Lacock, and solve the mystery of Stonehenge.

Duration:1 day (return 6 p.m.)

Price:Adults £85, Children £78

Stonehenge, Windsor and Oxford Tour

Choose Stonehenge, Windsor and Oxford Tour and enjoy ancient mysticism, royal history and illustrious knowledge.

Duration:1 day

Price:Adults £72, Children £68

Stonehenge, Bath and Stratford Tour

Take a tour to make the most of the English historic attractions:the Stonehenge site, Bath and Stratford, the birthplace of playwright William Shakespeare.

Duration:1 day (return 8 p. m.)

Price:Adults £79, Children £68

51.The purpose of the passage is to ________.

A.advertise some popular English attractions

B.describe different routes to travel in England

C.tell readers how to save money while traveling

D.recommend some different tours in England

52.Two 15-year-old foreign students who want to visit Stonehenge and Oxford University will have to pay at least ________.

A.£110 B.£170 C.£136 D.£126

53.If you plan to travel with your kid who is a fan of Shakespeare, you would choose ________. A.Stonehenge Direct Tour

B.Stonehenge,Bath and Windsor Castle Tour

C.Stonehenge, Windsor and Oxford Tour

D.Stonehenge, Bath and Stratford Tour

B

Parents often believe that they have a good relationship with their teenagers. But last summer, Joanna and Henry noticed a change in their older son. Suddenly he seemed to be talking far more to his friends than to his parents. “The door to his room is always shut.”Joanna noted.

Tina and Mark noticed similar changes in their 14-year-old daughter. “She used to sit in my arms on the sofa and talk with me,” said Mark. “Now we joke that she does this only when she wants something. Sometimes she wants to be treated like a little girl and sometimes like a young lady. The problem is figuring out which time is whic h.”

Before age 11, children like to tell their parents what’s on their minds. “In fact, parents are first on the list.” said Michael Riera, author of Uncommon Sense for Parents with Teenagers. “This completely changes during the teen years.” Riera explained. “They talk to their friends first, then maybe their teachers, and their parents last.”

Parents who know what’s going on in their teenagers’ lives are in the best position to help them. To break down the wall of silence, parents should create chances to understand what their children want to say, and try to find ways to talk and write to them. And they must give their children a mental (思想的) break, for children also need freedom, though young. Another thing parents should remember is that to be a friend, not a manager, with their children is a better way to know them.

54.“The door to his room is always shut” suggests that the son_______.

A.dislikes to open his door B.begins to hate his parents

C.is always busy with his studies D.keeps himself away from his parents 55.What troubles Tina and Mark most?

A.Their daughter isn’t as lovely as before.

B.They can’t read their daughter’s mind exactly.

C.They don’t know what to say to their daughter.

D.Their daughter talks with them only when she needs money.

56.What can we learn from the passage?

A.Parents are patient with their silent teenagers.

B.Parents should try to understand their teenagers.

C.Parents are unhappy with their growing children.

D.Parents have suitable ways to talk with their teenagers.

C

Someday, umbrellas may do more than just keep people dry. A researcher in the Netherlands has designed a simple sensor(传感器) that “listens”to rain. And that sensor can turn an umbrella into a rain-measuring expert.

Tools like this can let anyone gauge the weather. That can help scientists make sure that satellites and radar(雷达)systems that track storms are doing a good job.

“Rain radar is a beautiful way of seeing where rainfall is up in the air. But you never know where it hits the ground, "says Rolf Hut. He designed the umbrella sensor.

Researchers want to know how much rain makes it to the planets surface. Not all rain that falls from a cloud reaches the ground. And it can be difficult for radar and satellites to measure that rain, particularly in cities. A host of big buildings can change how air and rain move during a storm. “It also explains why a single, exp ensive sensor-the kind that might be found at an official weather station-won’t give accurate( 精确的)city-wide data, Hut says. But by putting a low-cost rain measuring tool into people's hands, scientists can learn more about how much rainfall differs in these and other hard-to-measure places.

On the inside of the umbrella is a small, yellow disk (磁盘). It is the rainfall sensor. The sensor is attached to a black Bluetooth headset that sends the collected data to a smartphone.

Hut came up with the idea to stick the same type of sensor on an umbrella when he was

talking to kids about science. He showed them a photo of a policeman who was holding an umbrella and talking to a crowd in a microphone. Why not put the two together? He thought it could make a cool rainfall sensor .

When a storm came through, Hut compared the umbrella’s new“ear”for rain to official rain measuring equipment. And to his delight, he found the umbrella's measurements were“pretty good. ” His next step is to improve the umbrella sensor to be more accurate 57.The purpose of this passage is to_______

A.promote a unique umbrella B.inform us of a new invention

C.make readers interested in science D.praise a researcher for his Invention 58.The underlined word“gauge”in Paragraph 2 most probably me ans______

A.change B.control C.measure D.sense

59.Why can it be hard for official weather stations to measure the rain in cities?

A.Big buildings influence the move of air and rain

B.They are lacking in weather measuring equipment

C.Rainfall differs hugely depending on various areas

D.Their collected data cannot be sent to smartphones

60.What do we know about Huts new invention?

A.Hut is not satisfied with his new invention at all

B.Hut's invention is something useful but expensive.

C.He got the idea when talking to kids about science

D.A policeman in the rain helped Hut with the invention

D

Canadian singer and song writer, Alanis Morissette, is used to being in the public eye. Her most famous album(专辑)Jagged Little Pill, came out in 1995 when she was only twenty-one years old. It sold 15 million copies and made her world famous. Since then she has made several more albums and she has continued giving great performances on stage.

Last Thursday night, hundreds of fans went to the Corn Exchange in Cambridge, England to see Alanis Morissette performing in concert. It was Morissette's first performance in England since her song "Uninvited"won this year's Grammy Award for the best rock song. The 30-year-old singer has a strong fan base in England. There was not an empty seat anywhere in the concert hall at last Thursday's event, although it was an extremely cold night. “Sure it's cold outside, but I hope we'll warm it up in here for you”, Morissette said to the large crowd before she started to play.

During the 3-hour concert, Morissette used a lot of material from her award-winning album "Jagged Little Pill".She also played a few songs from her new album, such as "Everything But…”, which tells the story of someone looking for love in the wrong places. Morissette gave a creative and powerful performance in another song “Utopia”. Her singing was full of feelings; the first part of the song was filled with anger, while the last part expressed love and joy.

Although the concert hall was cold and the sound system caused a few problems, the audience could still enjoy the concert. Many people in the crowd were obviously long-time fans and they knew the words and sang along to nearly every song throughout the concert. The atmosphere inside the concert hall was extremely exciting. Everyone agreed that they were greatly impressed by Morissette's brilliant music and sing.

At the end of the three hours, Morissette showed that she was a true performer, singing a well-known song “Heartache”. She finished the evening with a new song about the life of a

superstar. While I watched and listened, I knew that I was seeing the performance of a real superstar.

61.Which of the following facts CAN’T prove that the performance was successful? A.There wasn’t an empty seat in the concert hall at the event.

B.The fans sang along to nearly every song throughout the concert.

C.The song "Uninvited" won this year's Grammy Award for the best rock song. D.Although it was cold in the concert hall, the atmosphere inside was exciting.

62.How many albums of Alanis’ are mentioned in the passage?

A.5. B.4. C.3. D.2.

63.What do we know about Alanis Morissette?

A.Her album Jagged Little Pill made her world famous.

B.Alanis Morissette came to perform in London for the first time.

C.Her well-known song “Heartache” is about the life of a superstar.

D.Morissette has got two awards in her life.

64.Which of the following word migh t have the closest meaning to “brilliant” in Paragraph 4? A.fast B.excellent C.popular D.strong 65.Which is the best title for the passage?

A.Alanis—a True Performer B.A Successful Concert

C.My Superstar D.Alanis and her Fans

第二节(共5小题,每小题2分,满分10分)

根据短文内容,从短文的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。When and why did you start running?

It was March 2017. My family had gone through a terrible experience. My nephew Peter had his arms and legs cut to save his life from the after-effects of meningitis(脑膜炎).66.. I needed to get fit and healthy for my family, to become a role model for them. Peter inspires me to live life to the full: he doesn’t let his disability get in his way!

What race result are you most pleased with?

I'm proud of all the races I’ve done. I never thou ght I'd be able to call myself a runner. I now regularly race and love bringing home medals for my daughters to be inspired by.67.!

What's next?

68..We started a campaign called Hope 4 Peter and support has been amazing: our local community helped raise ?240k for prosthetic legs(假肢)and physiotherapy. We’ve had huge support from Meningitis Now and Time is Precious too, and I’ll be raising money for them, but also pushing Peter around the full course.69..

What does running mean to you?

I’ve suffered with me ntal health problems and running gives me a clear head and removes negative (消极的)thoughts and stress.70.. We should be so grateful for our bodies and what amazing things they can do!

A.It was quite a shock to me

B.The London Half Marathon

C.That makes me keep running

D.My favorite thing to do is run a marathon

E. I love the freedom of it and I love the fact I can run

F No child has ever taken part in the full half marathon

G. I do love to have a cool chocolate, banana and apple pie after running

第II卷非选择题(三部分, 共40分)

第一部分:短文填空(共10小题,每小题1分,满分10分)

阅读下面短文,在空白处填上适当的单词或括号内单词的正确形式。

Adam, a freshman of senior high school, thought going to senior high school was really 71.(challenge). The first week made him a little 72.(confuse). Different from junior middle school, he had to choose 73.(suit) courses. He chose Chinese, hoping to speak it 74.(fluent) when he graduated. His adviser also suggested that he sign 75.for advanced literature.

Besides, he tried to join the football team, 76.he failed. 77.(obvious), he had to find a way to improve on his own to try next year. In a word, he wanted to be a person with a strong sense of 78.(responsible). Though he was worried about 79.(keep) up with other students, he was sure he 80.(will) be well prepared for future life.

第二部分:单词拼写(共10小题,每小题1分,满分10分)

阅读下列句子并根据所读内容在空格处填入一个最恰当的单词。注意:请将答案写在答题卡上相应题号的横线上,每个空格只填一个单词。

81.His ________ (祖先) was from Africa and was sold to America as a slave.

82.The journalist interviewed the only passenger who ________ (幸存) the air crash last night. 83.He finally ________ (使确信) customers of the advantages of the products from his company.

84.The customs officer ________ (检查) our passports very carefully before we left.

85.If you don’t have a table ________ (预订) today, yo u’ll have to wait in the restaurant tomorrow.

86.The article published in the newspaper a________ the immoral behavior in public places. 87.The v________ in this mountain area live rather far apart from one another.

88.After the operation, he did a lot of physical exercise to build up his s________. 89.After graduation from high school we gradually lost t________ of each other.

90.You can borrow a chair from his room, but remember to put it back where it b________.

第三部分:书面表达(满分20分)

假如你是李华, Jane 是美国人。在她暑假来中国游玩时你们相识,并成为好朋友。Jane 回国后,你很想念她,于给她写了一封信,并且从三个方面和她谈

了你对高一新生活的感受。

1. 对学校的印象

2. 对老师同学的感觉

3. 对新生活的决心。注意:

1.词数120 左右;

2.可以适当增加细节,以使行文连贯;

3.开头语和结束语已为你写好。

Dear Jane,

How’s everything going?

_______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________

_______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ _______________________________________________________________________________ Yours,

Li Hua

高一英语参考答案

听力(每小题1.5分,满分30分)

1-20 ACACB CBABA BCBAC BABCB

单选(每小题1分,满分10分)

21-30 BDDDC BCCCC

完型填空(每小题1.5分,满分30分)

31-50 CDBCA CBDCA BBCAD ADBDA

阅读理解(每小题2分,满分30分)

51-53 DCD 54-56 DBB 57-60 BCAC 61-65 CDABA

七选五(每题2分,满分10分)

66-70 ACBFE

短文填空(每题1分,满分10分)

71.challenging 72.confused 73.suitable 74.fluently 75.up

76.but 77.Obviously 78.responsibility 79.keeping 80.would

单词拼写(每小题1分,满分10分)

81.ancestor 82.survived 83.convinced 84.examined 85.reserved 86.attacked 87.villagers 88.strength 89.track 90.belongs

写作(满分20分)

Dear Jane,

How’s everything going? I miss you very much after you left China, so I'm writing to tell you something about my school life.

My school is very large and beautiful and I feel the new school life is very exciting and full of

challenges. My teachers and classmates are all very friendly . They give me much encouragement. Now I can get along well with my new classmates, with whose help I get used to the new life quickly. I have decided to try my best to learn more from them and devote myself to my study. I believe I can make great progress in the new semester.

Give my best regards to your parents and I am looking forward to hearing from you soon.

Yours,

Li Hua

听力原文

1.A

【原文】

W: Mr. Johnson, I’ve been working hard for two months. I really need a break from work. I want a one-week holiday.

M: That’s totally OK, Gina. You’ve got a hard job.

2.C

【原文】

M: How much do tickets for the movie cost, please?

W: They’re 8 dollars for adults, half price for st udents.

M: Give me three student tickets, please.

3.A

【解析】

【原文】

W: What happened?

M: Sorry, honey. I fell when I was moving the two chairs upstairs.

W: Need to see the doctor, darling?

M: No, I didn’t get hurt. But look at the chairs. They broke.

4.C

【解析】

【原文】

M: Excuse me. Are you Mrs. Brown from London?

W: That’s it.

M: Welcome to the Big Apple, Mrs. Brown. I’m Calvin Smith. My company arranged me to pick you up here. My car is over there.

5.B

【解析】

【原文】

W: Have you sent an invitation to Laura?

M: Rosa?

W: No. I said Laura, not Rosa. Laura, Maria’s sister.

M: Yes. I’ve done that. But should we also invite Maria?

6.C

7.B

【解析】

【原文】

M: Oh, the ink is poured on the desk. I’m terribly sorry.

W: Oh, my new book. I bought it just yesterday. I haven’t even read it yet.

M: I’m sorry again. Don’t worry about the book. I’ll get you a new one.

W: And there is ink all over the desk. The class will begin soon. How can I clean it?

M: I’ve an old pair of gloves in my desk. I’ll clean your desk with them. It’s all my fault.I’ll take care of everything.

8.A

【解析】

【原文】

M: The meeting came to an end at last. So, Mary, what would you like to have for lunch?

W: I’d like to go to the Seafood Palace. It’s next to the shopping mall.

M: Well, you’ll have some nice ocean views, but we don’t have much time. The movie will begin in forty minutes.

W: Oh, you’re right. So what about Jim’s Café?

M: Er, it’s also a little far. I think Rose Restaurant is perfect for today, and the steak there is wonderful.

W: Sounds great.

10.A

11.B

12.C

【解析】

【原文】

M: Good afternoon. Have a seat and tell me what’s wrong.

W: I’ve had a stomachache for a long time. It started Friday morning.

M: You’ve had a stomachache for four days. Why did you wait so long?

W: I didn’t think it was serious.

M: And do these stomachaches happen at any particular time?

W: Yes, every morning, just before lunchtime.

M: Have you changed your morning routine recently?

W: Well, I have a new job, and I’ve been skipping breakfast and drinking more coffee.

M: That’s probably why your stomach has been bothering you. Let’s order some tests, and I’ll examine you. But you should consider changing your breakfast habits.

13.B

14.A

16.B

【解析】

【原文】

W: John, have you watched the film Spies in Disguise?

M: No. Is it a new movie?

W: Yes. It was expected to be one of the best movies in the year 2019.

M: So what’s it about?

W: It’s about two spies who work together as a team to find dangerous spies. One of them is named Lance Sterling. He’s cool, good-looking and skilled. Saving the world is h is job. He’s voiced by Will Smith.

M: I love Will Smith’s performance in Men in Black. And I love his voice. So what about the other man?

W: The other man is Walter voiced by Tom Holland. Walter has a great mind but he isn’t good at social activities.

M: O h, I love Tom Holland’s performance in Spider-Man: Homecoming. By the way, is there the movie on tonight? I can’t wait to go to watch it.

W: Yes, there’s one at 8:00 pm.

M: Great. There are still two hours left. I can make it.

17.A

18.B

19.C

20.B

【解析】

【原文】

M: My name is Jerry Brown. I entered high school last year. I get up around 6:30 am every day. After I get up, I usually do a morning run and do a little exercise. And I go to fetch the papers for my father. Then I take a shower before eating my breakfast prepared by my mother at 7:15 am. It usually takes me 15 minutes to get to school by bike. The class begins at 8:00 am with my favorite

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例3在不考虑空气阻力的情况下,火箭的最大速度(/)v m s 单位:和燃料的质量 ()M kg 单位:、火箭(除燃料外)的质量的函数表达式为2000ln(1)M v m =+ .当燃料质量是火箭质量的多少倍时,火箭的最大速度可以达到12/km s ? 三 巩固案 1.向高为H 的水瓶中注水,注满为止.如果注水量V 与水深h 的函数关系的图象如图所示,那么水瓶的形状可能是 2.根据市场调查,某商品在最近40天内的价格f (t )与时间t 满足: f (t )=1 11(020) 241(2040) t t t N t t t N ?+<∈???-+∈?≤,≤≤,,销售量g (t )与时间t 满足:g (t )=14333t -+ (0≤t ≤40,t N),则这种商品日销售金额的最大值为 . 四 归纳总结 利用图、表建模;分段建模;指、对数函数模型. 五 学习反思 h V H C D

江苏省沭阳县修远中学2020-2021学年九年级上学期第四次月考数学试题(解析版)

2020—2021学年度第一学期第四次阶段测试 初三数学试题 一、单选题 1. 若a、b 是一元二次方程x2+3x -6=0 的两个不相等的根,则a2﹣3b 的值是() A. -3 B. 3 C. ﹣15 D. 15 【答案】D 【解析】 【分析】 根据根与系数的关系可得a+b=﹣3,根据一元二次方程的解的定义可得a2=﹣3a+6,然后代入变形、求值即可. 【详解】∵a、b是一元二次方程x2+3x﹣6=0的两个不相等的根,∴a+b=﹣3,a2+3a﹣6=0,即a2=﹣3a+6,则a2﹣3b=﹣3a+6﹣3b=﹣3(a+b)+6=﹣3×(﹣3)+6=9+6=15. 故选D. 【点睛】本题考查了根与系数的关系及一元二次方程的解,难度适中,关键掌握用根与系数的关系与代数式变形相结合进行解题. 2. 下列说法正确的是() A. 三点确定一个圆 B. 圆的切线垂直于过切点的半径 C. 平分弦的直径垂直于弦,并且平分弦所对的两条弧 D. 长度相等的弧是等弧 【答案】B 【解析】 【分析】 根据圆的切线,弦和弧的概念逐一判断即可. 【详解】不共线的三点确定一个圆,故A选项错误; 圆的切线垂直于过切点的半径,故B选项正确; 平分弦(非直径)的直径垂直于弦,并且平分弦所对的两条弧,故C选项错误; 能够互相重合的弧为等弧,故D选项错误;

故选B . 【点睛】本题考查了圆的基础知识,熟练的掌握圆的相关基础定义和性质是解决本题的关键. 3. 若1x ,2x ,3x ,4x 的平均数为4,5x ,6x ,7x ,???,10x 的平均数为6,则1x ,2x ,???,10x 的平均数为( ) A. 5 B. 4.8 C. 5.2 D. 8 【答案】C 【解析】 【分析】 由平均数公式,计算一组数据和另一组数据的和,再由平均数公式,即可得到所求值. 【详解】解:一组数据x 1,x 2,x 3,x 4的平均数为4, 可得x 1+x 2+x 3+x 4=4× 4=16, 一组数据x 5,x 6,x 7,x 8,x 9,x 10的平均数为6, 可得x 5+x 6+x 7+x 8+x 9+x 10=6×6=36, 则x 1+x 2+…+x 9+x 10=16+36=52, 可得数据x 1,x 2,x 3,x 4,x 5,x 6,x 7,x 8,x 9,x 10的 平均数为 52 10 =5.2, 故选:C . 【点睛】本题考查一组数据的平均数的计算,正确运用公式和变形是解题的关键. 4. 如图,在3×3的方格中,A ,B ,C ,D ,E ,F 分别位于格点上,从C ,D ,E ,F 四点中任意取一点,与点A ,B 为顶点作三角形,则所作三角形为等腰三角形的概率是( ) A. 1 B. 14 C. 12 D. 34 【答案】D 【解析】 【分析】 根据从C 、D 、E 、F 四个点中任意取一点,一共有4种可能,选取D 、C 、F 时,所作三角形是等腰三角形,

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13 程海龙南京市天印高级中学 14 朱桂红南京市上元中学 15 薛圣丽南京市浦口区陡岗中学 16 马骏南京市浦口区第四中学 17 张华超南京市六合区新篁初级中学 18 赵小兵南京市九龙中学 19 陈春国溧水区第一初级中学 20 严青南京外国语学校 21 王守明南京市金陵中学 22 邵长峰南京市第九初级中学 23 石骏南京市燕子矶中学 24 雍永连南京市浦口桥林中学 25 王海龙江宁中等专业学校 26 任洁玄武区教师发展中心 27 竺兴妹江苏省南京工程高等职业学校 无锡市(26名) 28 朱涤瑕宜兴市实验幼儿园 29 曹玉兰无锡市新区梅村中心幼儿园 30 吴志健宜兴市新建小学 31 孔庆成宜兴市西渚小学 32 许科勤无锡市五爱小学 —2 —

33 朱明海无锡市八士实验小学 34 王艺敏无锡市育英实验小学 35 吕秋萍江阴市实验小学 36 丁建红无锡市东林小学 37 陈卫平无锡市玉祁中心小学 38 沈明强江苏省江阴高级中学 39 赵红慧江苏省天一中学 40 林涛江苏省锡山高级中学 41 秦梅芳江苏省太湖高级中学 42 熊慧无锡市旺庄中学 43 惠敏悦江苏省无锡市第一中学 44 陆丽萍江阴市第一初级中学 45 胡舜元无锡市天一实验学校 46 张锋无锡市太湖格致中学 47 朱晴怡无锡市辅仁高级中学 48 杨培明江苏省南菁高级中学 49 刘炜杰江苏省宜兴丁蜀中等专业学校 50 秦榛蓁无锡旅游商贸高等职业技术学校 51 戴娅萍江阴市特殊教育中心校 52 田芳梁溪区教育局教研室 53 殷亚清无锡市惠山区教育局教学研究室 —3 —

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江苏省宿迁市泗洪中学2019-2020学年高三上学期阶段性检测(三)生物试题(解析版)

泗洪中学2020届高三阶段性检测(三) 生物试卷 一、单项选择题 1.下列关于细胞中元素和化合物的叙述,正确的是( ) A. 组成DNA和ATP分子的元素种类相同 B. 淀粉是植物细胞壁的主要成分,其基本组成单位是葡萄糖 C. 蛋白质的空间结构改变时,其特定功能不发生改变 D. 胆固醇是构成动、植物细胞膜的重要成分 【答案】A 【解析】 【分析】 核酸、ATP、磷脂组成元素均为C、H、O、N、P,植物细胞壁的主要成分是纤维素和果胶。胆固醇是构成动 物细胞膜的主要成分。 【详解】DNA和ATP的组成元素均为C、H、O、N、P,A正确;植物细胞壁的主要成分是纤维素和果胶,B 错误;结构决定功能,蛋白质的结构改变,功能也会随之发生变化,C错误;胆固醇是构成动物细胞膜的主 要成分,植物细胞膜中没有,D错误。 故选A。 2.若①②③④分别代表多肽、淀粉、纤维素、脂肪,下图表示细胞中一种常见的水解反应,上述化合物能发 生此种反应的有( ) A. ①②③ B. ①②④ C. ①③④ D. ②③④ 【答案】A 【解析】

【分析】 ①多肽、②淀粉、③纤维素是大分子物质,它们分别是由氨基酸、葡萄糖、葡萄糖缩合形成的,可以在相 应酶的作用下水解成其单体;④脂肪不是大分子,它是由甘油和脂肪酸构成的。 【详解】分析题图可知,此图属于大分子物质水解成一种小分子的过程。多肽是由多个氨基酸缩合形成的 物质,能水解成其单体—氨基酸,①正确;淀粉能在相关酶的作用下水解成单体—葡萄糖,②正确;纤维 素能在相关酶的作用下能水解成单体—葡萄糖,③正确;脂肪是由甘油和脂肪酸组成的,不属于生物大分 子,且组成单位甘油和脂肪酸的结构也不相同,④错误。综上分析,A正确,BCD错误。 故选A。 3.下图表示细胞膜的亚显微结构,下列叙述错误的是( ) A. 细胞膜的基本骨架是② B. 细胞膜功能的复杂程度主要与①有关 C. 细胞膜是选择透过性膜 D. ②是静止的,①是运动的,所以细胞膜具有流动性 【答案】D 【解析】 【分析】 分析题图:该图为细胞膜的亚显微结构示意图,图中①为蛋白质分子、②为磷脂双分子层,磷脂双分子层 是构成细胞膜的基本骨架。 【详解】由图可知,②是磷脂双分子层,是构成细胞膜的基本骨架,A正确;细胞膜的功能多样性主要与蛋白质的种类和数量有关,细胞膜的功能越复杂,膜上的①蛋白质种类和数量越多,B正确;细胞膜能控制物质进出细胞,具有一定的选择透过性,C正确;构成细胞膜的①磷脂分子和大多数②蛋白质都是运动的,使 细胞膜具有一定的流动性,D错误。 故选D。

江苏省盐城市建湖2019-2020学年下学期初中八年级期中考试物理试卷

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