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成都七中初二上期末英语考试题最新版 PDF版

成都七中初二上期末英语考试题最新版 PDF版
成都七中初二上期末英语考试题最新版 PDF版

七中育才学校2019-2020学年度(上)期末监测

八年级英语试卷

命题人:鲁瑜邵蓉李兴秀审题人:刘静

考试时间:120分钟满分:150分

温馨提示:1. 请用黑色签字笔在答题卷上规定地方清晰,工整地写上自己的班级、姓名、学号和座位号;

并把主观题部分的答案,按要求工整地写在答题卷规定的地方。答题卷上禁止涂抹和使用涂

改液,若写错需要更改,请把原答案用笔轻轻地划去,并在空白处写出正确答案!

2. 客观题部分即选择题部分,请先用黑色签字笔在机读卡规定地方写上自己的班级,姓名等信

息;然后用黑色签字笔在规定地方清楚的写上自己的考号(学号),再把号码下面对应的数字

和科目用2B铅笔涂黑。在填涂机读卡上对应题号下面的答案时,请注意规范填涂。

3. 请注意机读卡上题号的顺序,并且注意保持答题卷和机读卡的整洁,否则会影响最后的评分!

A卷(共100分)

第一部分听力测试(共30小题,计30分)

一、听句子,根据所听到的内容选择正确答语。每小题读两遍。(共5小题,每小题1

分;计5分)

1. A. Yes, please. B. No, I can’t. C. Sure, I’d love to.

2. A. They’re fun. B. It’s boring. C. I don’t like it.

3. A. Yes, I did. B. No, I don’t. C. I bought a wallet.

4. A. Servant. B. Scientist. C. Education.

5. A. It’s Thursday. B. It’s January the 9th. C. It’s Thursday the 9th.

二、听句子,选择与你所听到的句子意思相符合的图片,并将代表图片的字母填在相应的

题号后。每小题读两遍。(共5小题,每小题1分;计5分)

A B C D E

6. ____________

7. _____________

8. _____________

9. ____________ 10. _____________

三、听对话,根据对话内容及问题选择正确答案。每段对话读两遍。(共10小题,每小题1

分;计10分)

11. A. In a shop. B. In a restaurant. C. In a theater.

12. A. Green City. B. Town Cinema. C. Movie World.

13. A. Friendly. B. Not good. C. Great.

14. A. Susan. B. Mike. C. Jerry.

15. A. News. B. A film. C. A test.

16. A. A scientist. B. A pianist. C. A soccer player.

17. A. At 10:00 a.m. B. At 10:30 a.m. C. At 11:00 a.m.

18. A. Sister and brother. B. Husband and wife. C. Mother and son.

19. A. 40 yuan. B. 160 yuan. C. 200 yuan.

20. A. Keep it to himself. B. Share it with his friends. C. Talk to his parents.

四、听短文,根据短文内容选择正确答案。短文读两遍。(共5小题,每小题1分;计5

分)

21. What does Connie look like?

A. She has long hair and big eyes.

B. She has red hair and a round face.

C. She has big eyes and short hair.

22. Did she get good results in the last week’s exam?

A. Yes, she did.

B. No, she didn’t.

C. I don’t know.

23. What does she do if the teachers are free in the office?

A. She will ask teachers for help.

B. She will help the teachers.

C. She will clean the office.

24. Why does the writer’s family like Connie according to the article?

A. Because she is outgoing.

B. Because she is friendly.

C. Because she is happy.

25. What will the writer do when she feels unhappy?

A. She will make Connie feel better.

B. She will laugh together with Connie.

C. She will have a talk to Connie.

五、听短文,根据短文内容完成表格中所缺信息。短文读三遍。(共5小题,每小题1分;

计5分)

第二部分基础知识运用(共30小题,计40分)

六、选择填空。(共15小题,每题1分;计20分)

A. 从各题的A, B, C选项中选择正确答案。(共10小题,每小题1分; 计10分)

31. Xiao Zhan is talented actor. He is very popular these days.

A. a

B. an

C. \

32. ---I’m busy, but Eliza wants me to hang out with her. What should I do?

---I think you should learn to __________ her invitation.

A. turn down

B. cut down

C. fall down

33. On November 11th, many people spent money buying useless things. I think they should choose

things ___________ next year.

A. early

B. seriously

C. cheaply

34. ---Jack, can you buy some salt for me in the supermarket. It’s not enough for the soup.

---Mom, ___________. But can I finish my homework first?

A. I’d love to

B. Sorry, I can’t

C. I’m afraid not

35. --- yogurt do we need when we make a banana milk shake?

--- I think one cup is enough.

A. How about

B. How many

C. How much

36. There is ____________ to discuss, so they will end the meeting very soon.

A. something important

B. nothing important

C. anything important

37. The teacher always says, “You can’t get better grades _________ you put your heart into it.”

A. as long as

B. if

C. unless

38. Tom sang ____________ of all in the singing competition. So he won the first prize.

A. well

B. better

C. best

39. --- I wonder ____________.

--- I think you can study computer science really hard.

A. how I am going to become a computer programmer

B. why you want to be a computer programmer

C. where I can be a computer programmer

40. All the students promised not to tell Ms. Brown anything about the party. They want to give her

a big ________.

A. concert

B. surprise

C. invitation

B. 根据对话内容,从方框中选出适当的选项补全对话,并将选项的编号依次填入题号后横

线上。(共5小题,每小题2分; 计10分)

A: Mary. The winter vacation is coming soon. 41

B: I’m going to travel to Sanya with my friends. How about you?

A: 42 We all like standing at the top of the mountains.

B: It’s great. 43

A: Yes. We often do it when we have time.

B: It’s good exercise. 44

A: Would you like to go there with us?

B: 45 My parents will go out. I have to look after my sister.

、B、C三个选项中选出可以填入空白处的正确答案。(共15小题;计20分。A篇每题2分,计10分;B篇每题1分,计10分)

A

More and more middle school students these days feel tired and angry. They even have no interest in their 46 . Some of them stop studying and want to leave school.

Some doctors and experts think many students have a lot of problems not only with their bodies but also with their minds. Many students start to 47 their homework or exams. Because they have too much pressure(压力) and can’t have a good sleep. It is not good for their health and studies. What should they do with the problems?

There are many ways to 48 them. First, some students spend too much time on study. They should find time to relax. Second, they should have enough time to sleep because it can help them make 49 mistakes. And a good sleep can make them understand teachers better. Finally, they should have exercise every day because it can help them relax. All students should know that doing exercise is 50 . As a saying goe s “All work and no play makes Jack a dull(迟钝的) boy.”

46. A. exercise B. housework C. schoolwork

47. A. hear about B. worry about C. think about

48. A. solve B. keep C. follow

49. A. less B. fewer C. more

50. A. interesting B. difficult C. necessary

B

Our parents and teachers always tell us to be honest(诚实的) and civilized(有教养的), but many of us forget this as we 51 .That’s not true for Yang Yang, a 14-year-old teenager from Changsha, Hunan province. She moved many people by being honest in 52 this year.

On a cold and snowing morning, when Yang was getting 53 to eat in a restaurant, she dropped(掉落) a full 54 of food. She stood sadly and didn’t know what to do. The restaurant waiter was so 55 that he said to Yang, “Don’t worry. We can give you 56 meal for free.”

Everyone thought that this story would end like this. But when Yang left after eating, the waiter found 75 yuan and a piece of paper on the table. It said, “I’m sorry that the money might not be enough for my 57 , but that’s all I have. Thank you for your help.” The waiter was deeply touched after reading the words. He thought that the money was 58 a week’s pocket money(零花钱) for the girl. He tried to 59 the honest girl on the Internet. Finally, the waiter found the girl after her teacher heard about the story.

However, Yang thought it was not a big thing. “I got other people’s help and shoul d 60 for their help,” she said. The reporter from People’s Daily said, “This honest girl warm people’s hearts by her words and action on such a cold winter day.”

51. A. grow up B. take up C. make up

52. A. September B. April C. December

53. A. organized B. ready C. closed

54. A. plate B. menu C. spoon

55. A. angry B. understanding C. upset

56. A. other B. others C. another

57. A. experience B. mistake C. activity

58. A. mainly B. hardly C. probably

59. A. look for B. look after C. look at

60. A. thank B. work C. prepare

第三部分阅读理解(共15小题,计30分)

八、阅读下面短文,根据短文内容判断句子的正误。正确的涂A,错误的涂B。(共5小题,

每小题2分;计10分)

I’m learning English in the UK. I meet a lot of new

friends and eat something delicious there. Hot pot(火锅)

is many Chinese people’s favorite food. I like it, too. After

having three days of hamburgers, sandwiches and

potatoes, I didn’t want to eat them at all. So I was excited

to know that there was going to be a free meal of hotpot to hot pot hotpot welcome the new students. On the way to the dining hall, I seemed to smell the hot pot in the air. To my surprise, when I got there, there were still potatoes and bread in front of me. Where was the hot pot? With many questions in my head, I sat down to have the free meal. After talking with a French girl, I knew hot pot is quite different from hotpot. Chinese hot pot is two words but British hotpot is only one word. It’s a tradit ional English dish.

Hotpot is made of mutton and onion. On the top there are potato pieces. People put it in a heavy pot and cook it in the oven at a low temperature all day. You can often see it at parties in the UK because it’s easy to prepare for a lot of people and it is not expensive.

61. The writer can’t stand the food in the UK after having three days of hamburgers, sandwiches and potatoes.

62. To welcome the new students, the school prepared hotpot.

63. Although hot pot and hotpot are different in writing, they are the same food.

64. The writer could have mutton, onion and tomatoes in the dining hall according to the article.

65. Hot pot is cheap and easy to prepare, so we often see it at parties in the UK.

九、根据短文内容选择正确答案。(共10小题,每小题2分;计20分)

A

Pe ople in Beijing can’t eat on the subway from May 2019. Are these subway rules good or bad? Different people have different ideas.

No one wants to eat on the subway unless they are very hungry or have no time

for meals. If people can eat on the subway, it will be good news for busy people.

Also, I think people can enjoy their food on the subway as long as their food

doesn’t smell bad.

◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇ I

don’t like the

people eating on the

subway. They don’t care about other

people’s feelings. I don’t like the smell (气味). If people eat next to me on the

subway, I can’t s t and them. It’s not good for keeping the subway clean, too.

◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇

I usually go to school by subway. Sometimes I felt so sleepy. I want to have

breakfast on the subway. I can save time and sleep. This rule is really unfriendly

to people like me. If someone wants to drink water on the subway, should he or

she have to get off the subway to have a drink? In my opinion, they should at

least be able to drink water.

Zhao Xin, 16, Beijing

◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇

It isn’t a good idea to eat food on the subway. The smell of food and drinks can

make other people angry. I take the subway home from school every day. I often

feel tired and hungry. But I never eat on the subway. Sometimes there are people

eating food next to me. The smell is so bad. Also, the subway is so noisy and crowded. I don’t think they can enjoy their food on the subway.

◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇◇

66. Does Zhao Xin like the rules?

A. Yes, he does.

B. No, he doesn’t.

C. I don’t know.

67. Why doesn’t Sun Run like the people eating on the subway?

A. Because she is tired and hungry.

B. Because she doesn’t like the smell and it’s difficult to keep the subway clean.

C. Because she thinks the smell is bad and the subway is not a good place for eating.

68. How many students disagree to eat on the subway?

A. One.

B. Two.

C. Three.

69. Which of the following is right?

A. Xing Yuxi doesn’t think people can eat their food on the subway.

B. Zhang Jiahao thinks the rules are good for keeping the subway clean.

C. Sun Run thinks people should at least be able to drink water on the subway.

70. The article mainly talks about ______________.

A. different ideas of eating on the subway

B. different rules on the subway

C. different people on the subway

B

Vincent Caspar is from Africa. He moved to America in the early Array 1980s. When he first arrived, he stayed at a hotel. He found out every

morning the hotel workers put a new soap in his room. In fact, he could

still use the old one. The next day, though he refused, the hotel worker

gave him another new one. Vincent was surprised that many other

hotels did the same thing in America.

He thought it would be better to bring the old soap together and give

it to poor people in Africa. Each year, many children in Africa die from

illnesses(疾病)because of bacteria. People can easily stop such illnesses by washing hands with soaps.

In 2001, Vincent set up an organization called the Global Soap Project(工程). Many hotels join it. They send the used soaps to the organization. Workers carefully put the soaps with the same color and smell together. They heat(加热)the soaps and make them into new ones. Finally, the organization takes the new soap to Africa and other poor countries and gives it to poor people. It is truly helpful to stop illnesses.

71. When Vincent Caspar first arrived in America, he found _____________.

A. workers usually took soaps home from hotels

B. hotels threw away(扔掉)a lot of used soaps

C. he should buy soaps in the hotel himself

72. The underlined word “bacteria” means “____________” in Chinese.

A. 细菌

B. 食品

C. 矿物质

73. Vincent Caspar brought the soaps together to _____________.

A. make money

B. help poor people

C. be famous

74. Workers ______________ before they make new soaps.

A. put the soaps into hot water and heat them

B. cut the soaps into small pieces

C. bring the soaps together and heat them

75. What is the best title?

A. Vincent — a helpful and warm-hearted man.

B. Soaps —helpful to stop illness.

C. A helpful organization —Global Soap Project.

B卷(非选择题;共50分)

一、根据首字母及句意补全单词,并将单词完整地写在答题卡上。(共5小题,每小题1分;计5分)

1. Everyone is surprised that so many buildings and f_____________ appear in town in such a short time. Lots of workers go there to look for jobs.

2. C _______________ the Spring Festival is one of Chinese people’s favorite traditions. They always have a big meal with their family.

3. Too many kids have the flu in hospital these days. There are no a____________ beds there.

4. Mr. Li found someone breaking into a car. He called the police. The police c__________ the man successfully with the help of Mr. Li.

5. Greg hung out with his friends very late yesterday without telling his parents. So his father shouted at him a_____________.

二、完成对话。在对话空格中填上适当的单词,使对话完整正确。一空一词(含缩写词)。(共10小题,每小题1分;计10分)

A: What are you reading, Jill?

B: I’m reading a book about parents and kids. It’s interesting. Do you know “strawberry kids”? A: No. I have never heard of it.

B: The strawberry looks nice, but only a little pressure(压力) can make it out of 1 . Many students are like strawberries. They 2 break down when they face difficulties. They don’t know what to do.

A: I met such a student in the primary school. He was an excellent monitor(班长) in my class. One day, the teacher criticized(批评) him because he didn’t organize the class meeting well. He felt so sad that he even 3 his ability. He thought he was not good enough for the work as the monitor. Why are they so easy to break down?

B: The book says parents are one of the 4 reasons. Most of these kids have helicopter parents.

A: What does it 5 ?

B: Helicopter parents take away all the difficulties and make almost 6 good for their kids. They try to do all they can for their kids in their daily life. So watching kids fail(失败) without helping them is the 7 thing helicopter parents can do in the world. Your monitor was such a strawberry kid. Maybe he had helicopter parents.

A: I think so. His parents 8 criticized him. He was the best one in their eyes.

B: But it’s important for parents to let their kids grow up by failing and keeping on trying.

A: I quite agree. I think helicopter parents have to know and 9 the idea of letting kids fail as part of their growing life. They should give kids the time to be kids, grow up and experience life 10 . As an expert said, “When you have problems, don’t ask others for help too quickly.”

B: Yes. Problems and worries are normal in life. Everyone must face them and work them out.

三、短文填空。从下面方框中选择适当的单词并用其正确形式填入短文空格内,使短文意思

正确通顺(每词限用一次)。按编号将答案依次填入下边表格内。(共10小题,每小题1分; 计10分)

Do you hear of 5G? It can give you a faster online experience. You can download(下载) a movie in seconds 1 5G. In fact, 5G can do a lot more than this. Here are some of them.

Education: Do you have online classes at home? With

5G, you can have classes outside your home. The classes

can go smoothly(流畅地)as the 2 you have at

home.

Self-driving car: With the help of 5G, self-driving cars

can drive 3 than real drivers. These cars can send

information to each other. They can also “talk” to traffic

lights and road sensors (传感器). 5G will make cars have

faster responses than 4 . It usually takes drivers longer to have responses.

5 c are: Xiao Ming is at school.

6 , He feels uncomfortable and falls down. An ambulance (救护车) comes. Doctors send Xiao Ming’s information to the hospital by using 5G. Doctors at the hospital get the information. They have a video call

7 sure the illness. With 5G, people see doctors like this.

Virtual reality (VR) 虚拟现实: You put on a VR headphones at home. Now you feel like you are at a zoo. You hear the sound of the tigers. You can touch a fish. It makes you feel like you are really in a 8 place.

Smart home: 5G makes the Internet of Things 9 . The Internet of Things is a large network that join everything together. Smart homes are part of it.

All in all, 5G will make our mobile Internet faster. It 10 in changing the traditional ways of living and working, too.

四、阅读表达。(共10小题,计10分)

A.阅读下面短文,根据短文内容,从短文后的选项中选出适当的选项补全短文(有一多余选项)并将选项的编号依次填入题后表格中。(共5小题,每小题1分; 计5分)

Li Ziqi, an online video maker, is famous and popular

with many people now.

Li’s life looks like one out of a fairy tale(童话). Her fans

call her “the goddess(女神) of nature”. 1 The

most wonderful thing about her is that she does the things

in a traditional Chinese way. Millions of people love her

videos. These videos bring the inner(内心的) peace to the

people. She has some 50 million fans in China and another

8 million outside China. However, they still know little

about her. In her videos, she doesn’t speak or have

interviews. 2

To find Li, we have to travel to a village in Sichuan in southwest of China. Li said she grew up with her grandparents there. She came to live with them because her stepmother(继母) didn’t like her.But her grandparents were poor. 3 In 2012, she decided to return to the countryside to look after her grandmother. Four years later, she started making online videos about her life there.

“When I worked in the city, it was about survival(生存). Now when I worked in the countryside, I feel like I’m truly living, ” Li said, “What I want to bring to people is not complicated(复杂). ________4 A teacher friend once told me about some students who thought rice grew from trees. So I want kids in the city to know the truth.”

A few days ago, she got a prize from the Communist Youth League of China (中国共青团). Some people say Li is one of China’s most successful online video makers. 5 She is just filming her life or filming the life that she wants. “This is important to me. I have to work harder and do more things that are meaningful.” says Li.

B.阅读下面短文,补全表格中所缺的信息。按编号把答案依次填在题后的横线上。(共5小题,每小题1分; 计5分)

Everyone needs friends. Friends are important in your life. They can make your life interesting. They can reach for your hand and touch your heart in difficult times. Life would be hard and boring without any friends.

Friends are people you know well. Some of them may be outgoing. Some may be quiet. But they are all people you like to spend time with. When you are bored, you may have a friend who often plays with you. When you feel sad, you may have a friend who is always there to listen. While some people may have problems making friends, the following can help you.

Tell the truth.

A good friendship starts with telling the truth. Friends must believe in each other. Good friends always believe in one another and do things honestly(诚实地). Tell the truth and do things honestly, your friend will be closer to you. Or they may leave you one day.

Be ready to share.

Sharing with your friends makes you happier. You don’t have to give your money or your clothes to friends. You should talk about your ideas and feelings. In this way, your friends can know more about you.

Understand each other.

Understanding is important for everyone. Talking about the problem can make it easier to solve. You must try to put yourself in your friend’s place, so you can understand the problem and your friend better.

In fact, good friendship does not easily last. Each of you should do something to keep it. You

五、书面表达。(计15分)(请将答案写在答题卡上)

下面是一份有关学生习惯的问卷调查(questionnaire)。请根据此写一篇短文描述你的习惯,并选取其中三点与Tom的习惯进行比较。新年到了,在英语学习和与人相处方面你打算分别做出哪些改进呢?如果这样做,又会有哪些结果呢?

注意:1.描述你所有的问卷答案。2. 须用上比较级。3.过渡自然,语言流畅。4.词数:100左右。

四川省成都市武侯区-2017-2018学年八年级上期末数学模拟试题

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如果要选出一个成绩较好且状态稳定的组去参赛,那么应选的组是() A. 甲 B. 乙 C. 丙 D. 丁 7. 下列命题中,是假命题的是() A. 平行于同一直线的两直线平行 B. 三角形的内角和等于180° C. 三角形的一个外角等于和它不相邻的两个内角的和 D. 三角形的一个外角大于任何一个内角 8. 下列关于函数y=3x-2,说法正确的是() A. 函数的图象经过第一、二、三象限 B. 函数的图象与y轴的交点坐标为(0,2) C. y 的值随x值的增大而增大 D. 点(1,2)在函数图象上 9. 小明的爸爸骑着摩托车带着小明在公路上匀速行驶,小明每隔一段时间看到的里程碑上的数如下: 则12:00 时看到的两位数是() A. 25 B. 52 C. 61 D. 16

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成都市2019-2020年度八年级上学期期末数学试题A卷

成都市2019-2020年度八年级上学期期末数学试题A卷 姓名:________ 班级:________ 成绩:________ 一、单选题 1 . 关于的不等式有3个整数解,则的取值范围是() A.B.C.D. 2 . 如图所示,下列语句描述正确的是() ①若∠1=∠3,则AB∥DC;②若∠C+∠1+∠4=180°,则AD∥BC;③∠A=∠C,∠ABC=∠ADC,则AB∥DC;④若∠2=∠4,BD平分∠ABC,则BC=CD;⑤若AD∥BC,∠A=∠C,则AB∥DC. A.B.C.D. 3 . 如图,,是直线两侧的点,以点为圆心,长为半径作圆弧交于,两点;再分别以, 为圆心,大于的长为半径作圆弧,两弧交于点,连接,,,下列结论不一定成立的是() A.B.点,关于直线对称 C.平分D.点,关于直线对称 4 . 点A(1,2)向右平移2个单位得到对应点A′,则点A′的坐标是()

A.(1,4)B.(1,0)C.(-1,2)D.(3,2) 5 . 如图,在△ABC中,∠BAC.∠BCA的平分线交于点I,若∠ACB=75°,AI=BC-AC,则∠B的度数为() A.30°B.35°C.40°D.45° 6 . 下列不等式对任何实数x都成立的是() A.x+1>0B.x2+1>0C.x2+1<0D.∣x∣+1<0 7 . 一次函数的图象经过第_____________________象限() A.一、二、三B.一、二、四C.一、三、四D.二、三、四 8 . 如图,在矩形中,,,将矩形沿折叠,点落在点处,则重叠部分 的面积为() A.6B.12C.10D.20 9 . 下面四个图形中,不是轴对称图形的是() A. B. C. D. 10 . 已知4条线段的长度分别为2,4,6,8,若三条线段可以组成一个三角形,则这四条线段可以组成三角形的个数是()

成都市八年级上数学期末试题3

成都市8年级上期期末调研考试 八年级数学 A 卷(100分) 一.选择题(30分,本大题共10小题,每小题3分)。 1.下列各式中,错误.. 的是( ) (A).283 -= ( B).222-=- ( C).283-=- ( D).222= 2.若?? ?==2 1 y x 是二元一次方程3=-y ax 的解,则a 的值是( ) (A)-5 (B) 5 (C) 2 (D) 1 3.下列说法正确的是( ) (A)1的平方根是-1 (B)2是-4的算术平方根 (C)16的平方根是±4 (D)-5是25的算术平方根 4.若点)1,3(++m m p 在平面直角坐标系的x 轴上,则点 p 的坐标为( ) (A) (4,0) (B)(-4,0) (C) (2,0) (D) (0,-2) 5.下列说法正确的是( ) (A)两组对边分别相等的四边形是平行四边形 (B)一组对边相等,另一组对边平行的四边形是平行四边形 (C)平行四边形既是中心对称图形,又是轴对称图形 (D)两条对角线互相垂直的四边形是平行四边形. 6.边长为1的正方形的对角线的长是( ) (A)整数 (B) 分数 (C) 有理数 (D) 无理数 数图象,下列说 7.如图,是某人骑自行车的行驶路程s (千米)与行驶时间t (时)的函法不正确的是( ) (A)从0时到3时,行驶了30千米 (B)从1时到2时,匀称前进 (C)从1时到2时,原地不动 (D)从0时到1时与从2时到3时的行驶速度相同. 8.下列四组线段中,能构成直角三角形的是( ) (A)4㎝,5㎝,6㎝ (B)8㎝,12㎝,15㎝ (C)6㎝,8㎝,10㎝ (D)7㎝,15㎝,17㎝ 9.若从某观察站得到的数据中,取出3322,11,x f x f x f 个个个,则这组数据的平均数是( ) (A) 321332211f f f x f x f x f ++++ (B)3321x x x ++ (C) 3332211x f x f x f ++ (D) 3 3 21f f f ++ 10.下列四边形:①等腰梯形;②矩形;③菱形;④正方形;⑤平行四边形,其中对角线一定相等的有( ) (A) ① ② ③ (B) ② ③ ④ (C) ③ ④ ⑤ (D) ① ② ④ 二、填空题:(每小题3分,共15分) 11. ()2 5= ; ()3 3 2= 。 12.如图,直线l 过正方形ABCD 的顶点B ,点A 、点C 到直线l 的距离分别是3和4,则该正方形的边长是 。 10 20 30 t (时) 1 2 3 S(千米)

2018-2019学年四川省成都市龙泉驿区八年级(上)期末数学试卷(解析版)

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A.B. C.D. 10.如图,在平行四边形ABCD中,∠BAD的平分线交BC于点E,∠ABC的平分线交AD于点F.若BF=12,AB=10,则AE的长为() A.10B.12C.16D.18 二、填空题(本大题共4小题,每小题4分,共16分) 11.(4分)甲、乙两名同学投掷实心球,每人投10次,平均成绩为7米,方差分别为S=0.1, S=0.04,成绩比较稳定的是. 12.(4分)A(﹣1,y1),B(3,y2)是直线y=﹣2x+b上的两点,则y1y2(填>或<) 13.(4分)已知a<3,则=. 14.(4分)如图,矩形ABCD中,DE⊥AC于E,且∠ADE=70°,则∠BDE的度数为. 三、解答题(本大题共6小题,共54分) 15.(10分)(1)﹣3×+ (2)(3+)(3﹣)﹣(﹣1)2 16.(10分)解方程: (1)

2018-2019学年成都市郫都区八年级(上)期末数学试卷(含解析)

2018-2019学年成都市郫都区八年级(上)期末数学试卷 (考试时间:120分钟满分:150分) A卷(共100分) 一、选择题(每小题3分,共30分) 1.8的立方根是() A.±2 B.2 C.﹣2 D. 2.下列哪个点在第四象限() A.(2,﹣1)B.(﹣1,2)C.(1,2)D.(﹣2,﹣1) 3.如图,在数轴上点A所表示的实数是() A.B.C.﹣D.﹣ 4.某射击小组有20人,教练根据他们某次射击命中环数的数据绘制成如图的统计图,则这组数据的众数和极差分别是() A.10、6 B.10、5 C.7、6 D.7、5 5.甲、乙、丙、丁四人进行射击测试,经过测试,平均成绩均为9.2环,方差如下表所示:选手甲乙丙丁 方差 1.75 2.93 0.50 0.40 则在这四个选手中,成绩最稳定的是() A.甲B.乙C.丙D.丁 6.如图,将△ABC放在正方形网格中(图中每个小正方形边长均为1)点A,B,C恰好在网格图中的格点上,那么∠ABC的度数为()

A.90°B.60°C.30°D.45° 7.点A(﹣5,4)关于y轴的对称点A′的坐标为() A.(﹣5,﹣4)B.(5,﹣4)C.(5,4)D.(﹣5,4) 8.下列是二元一次方程的是() A.5x﹣9=x B.5x=6y C.x﹣2y2=4 D.3x﹣2y=xy 9.若一次函数y=kx+b的图象如图所示,则关于x的方程kx+b=0的解为() A.x=﹣2 B.x=﹣0.5 C.x=﹣3 D.x=﹣4 10.说明命题“若a2>b2,则a>b.”是假命题,举反例正确的是() A.a=2,b=3 B.a=﹣2,b=3 C.a=3,b=﹣2 D.a=﹣3,b=2 二、填空题(每小题4分,共16分) 11.如图所示,在象棋盘上建立平面直角坐标系,使“马”位于点(2,2),“炮”位于点(﹣1,2),写出“兵”所在位置的坐标. 12.某校来自甲、乙、丙、丁四个社区的学生人数分布如图,若来自甲社区的学生有120人,则该校学生总数为人.

2020-2021成都市八年级数学上期末试卷(附答案)

2020-2021成都市八年级数学上期末试卷(附答案) 一、选择题 1.张老师和李老师同时从学校出发,步行15千米去县城购买书籍,张老师比李老师每小时多走1千米,结果比李老师早到半小时,两位老师每小时各走多少千米?设李老师每小时走x 千米,依题意,得到的方程是( ) A .1515112x x -=+ B .1515112x x -=+ C .1515112x x -=- D .1515112 x x -=- 2.把多项式x 2+ax+b 分解因式,得(x+1)(x-3),则a 、b 的值分别是( ) A .a=2,b=3 B .a=-2,b=-3 C .a=-2,b=3 D .a=2,b=-3 3.下列运算正确的是( ) A .236326a a a -?=- B .()632422a a a ÷-=- C .326()a a -= D .326()ab ab = 4.如图,在△ABC 中,∠C=90°,AD 平分∠CAB,DE⊥AB 于 E ,DE 平分∠ADB,则∠B= ( ) A .40° B .30° C .25° D .22.5? 5.若实数m 、n 满足 402n m -+=-,且m 、n 恰好是等腰△ABC 的两条边的边长,则△ABC 的周长是 ( ) A .12 B .10 C .8或10 D .6 6.下列计算中,结果正确的是( ) A .236a a a ?= B .(2)(3)6a a a ?= C .236()a a = D .623a a a ÷= 7.如图,在△ABC 中,AB =AC ,∠A =30°,AB 的垂直平分线l 交AC 于点D ,则 ∠CBD 的度数为( ) A .30° B .45° C .50° D .75° 8.甲、乙两个搬运工搬运某种货物,已知乙比甲每小时多搬运600kg ,甲搬运5000kg 所用的时间与乙搬运8000kg 所用的时间相等,求甲、乙两人每小时分别搬运多少千克货物.设甲每小时搬运xkg 货物,则可列方程为 A . B . C . D .

成都市八年级上数学期末试卷B卷题型汇总

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C.三角形的外角和等于180° D.公理和定理都是真命题 9.《孙子算经》中有一道题,原文是:“今有木,不知长短.引绳度之,余绳四尺五寸;屈绳量之,不足一尺.木长几何?”意思是:用一根绳子去量一根长木,绳子还剩余 4.5尺;将绳子对折再量长木,长木还剩余1尺,问木长多少尺.设木长为x尺,绳子长为y尺,则下列符合题意的方程组是() A.B. C.D. 10.直线y=k1x+b1(k1>0)与y=k2x+b2(k2<0)相交于点(﹣3,0),且两直线与y轴围成的三角形面积为12那么b2﹣b1的值为() A.3 B.8 C.﹣6 D.﹣8 二.填空题(共5小题) 11.中是最简二次根式的是. 12.已知一次函数y=kx+b(k≠0)的图象与x轴交于(﹣5,0),则关于x的一元一次方程kx+b=0的解为. 13.为从甲乙两名射击运动员中选出一人参加竞标赛,特统计了他们最近10次射击训练的成绩,其中,他们射击的平均成绩为8.9环,方差分别是S甲2=0.8,S乙2=13,从稳定性的角度看,的成绩更稳定(填“甲”或“乙”) 14.如图,直线a∥b,∠BAC的顶点A在直线a上,且∠BAC=98°,若∠1=35°,则∠2=度. 15.如果把人的头顶和脚底分别看作一个点,把地球赤道看作一个圆,那么身高2m的小赵沿着赤道环行一周,他的头顶比脚底多行m. 三.解答题(共7小题) 16.解答下列各题

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A.165cm,165cm B.165cm,170cm C.170cm,165cm D.170cm,170cm 8.(3分)若式子在实数范围内有意义,则m的取值范围为()A.m>1B.m>﹣1C.m≥﹣1D.m≥1 9.(3分)如图,已知函数y=ax+b和y=kx的图象交于点P,则根据图象可得,关于x、y 的二元一次方程组的解是() A.B.C.D. 10.(3分)甲、乙两车从A城出发前往B城,在整个行驶过程中,汽车离开A城的距离y (km)与行驶时间t(h)的函数图象如图所示,下列说法正确的有() ①甲车的速度为50km/h②乙车用了3h到达B城 ③甲车出发4h时,乙车追上甲车④乙车出发后经过1h或3h两车相距50km. A.1个B.2个C.3个D.4个 二、填空题(共4个小题,每小题4分) 11.(4分)9的平方根是. 12.(4分)已知点M(1,a)和点N(2,b)是一次函数y=﹣2x+1图象上的两点,则a 与b的大小关系是. 13.(4分)如图,△ABC中,∠A=80°,BP平分∠ABC,CP平分∠ACB,则∠BPC=

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A. B. C. D. 9. 下列命题是真命题的是() A. 中位数就是一组数据中最中间的一个数 B. 计算两组数的方差,所?2 = 0.39,?2 = 0.25,则甲组数据比乙组数据波动小 甲乙 C. 一组数据的众数可以不唯一 D. 一组数据的标准差就是这组数据的方差的平方根 10. 在Rt△ABC中,∠ACB=90°,AB=10cm,AB边上的高为4cm,则Rt△ABC的周长为 ()cm. A. 24 B. 6 5 C. 3 5 +10 D. 6 5 +10 二、填空题(本大题共9小题,共36.0分) 3 11. ?的相反数是______,8 的立方根是______. 3 12. 若点P(-1,a)、Q(2,b)在一次函数y=-3x+4 图象上,则a与b的大小关系是 ______. 2 13. 如图所示的圆柱体中底面圆的半径是,高为3,若一只小虫从A ? 点出发沿着圆柱体的侧面爬行到C点,则小虫爬行的最短路程 是______.(结果保留根号) 14. 如图,已知函数y=ax+b和y=cx+d的图象交于点M,则 { ?= ??+ ? 根据图象可知,关于x,y的二元一次方程组 ?= ??+ ? 的解为______. ?+ 3 15. 函数?= 中,自变量x的取值范围是______. ??1

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