初中英语冀教版九年级全册Unit5 Look into Science单元练习含答案

初中英语冀教版九年级全册Unit5 Look into Science单元练习
一、听力(听力)（共20小题；共20分）
（略）
二、单项选择（共10小题；共10分）
21. --- Your aunt often walks the dog in the morning.
--- Yeah, bad weather stops her.
A. when B. unless C. because D. since
22. Though I the phone number many times, the foreigner still couldn't write it down.
A. repeated B. refused C. researched D. recognized
23. Always read the ( http: / / www.21cnjy.com ) before you start taking the medicine.
A. instructions B. suggestions C. information D. explanation
24. It was sunny. He suggested out for a walk.
A. going B. to go C. goes D. go
25. That park some bridges and a lake.
A. is made of B. is made from C. is made by D. is made up of
26. --- Your grandparents were very great.
--- Yes. The ( http: / / www.21cnjy.com )y supported my father's schooling they were very poor.
A. as if B. even though C. so that D. what if
27. --- What are you reading, Tom
--- I'm not really reading, just the pages.
A. turning off B. turning around
C. turning over D. turning up
28. Betty went to t ( http: / / www.21cnjy.com )he museum and saw many pictures were drawn by a famous person.
A. that B. who C. what D. whom
29. --- Have you ( http: / / www.21cnjy.com )found the information about the famous people you can use for the report
--- Not yet. I'll search some on the Internet.
A. who B. what C. whom D. which
30. The gentlemen ( http: / / www.21cnjy.com ) are coming to my office tomorrow are my classmates many years ago.
A. whom B. who C. those D. which
三、完形填空（共10小题；共15分）
Technology has ( http: / / www.21cnjy.com ) made life much easier for children today. It is 31 for them to play, to listen to music, and to 32 in touch with their friends. 33 the help of technology, there seems to be nothing that children can't do now.
Techn ( http: / / www.21cnjy.com )ology also helps 34 to know more about their children. For example, if a child is given a mobile phone with a tracking(追踪) device, his parents can find out 35 he is going with the help of the mobile phone.
Howe ( http: / / www.21cnjy.com )ver, there are also some bad 36 of technology. For example, it has become easier for bad people to get in touch with children with the help of technology. They can find personal information about children through special ways on the 37 . So it is very important for parents to 38 their children to keep personal information safe while surfing the Internet.
Besides thi ( http: / / www.21cnjy.com )s, there is another bad thing about technology. Children now 39 less time doing exercise than before. They are too 40 playing online games. They can even play computer games all day long. If you don't push them out of the door, they won't volunteer to go out and play. This is not good for their health.
Therefore, ( http: / / www.21cnjy.com )teaching children the right way to make good use of technology is very important.
31. A. easier B. more difficult
C. more important D. harder
32. A. lose B. make C. keep D. contact
33. A. For B. Under C. With D. Over
34. A. teachers B. friends C. parents D. classmates
35. A. when B. whom C. why D. where
36. A. sides B. places C. choices D. winds
37. A. phone B. TV C. radio D. Internet
38. A. teach B. learn C. punish D. lend
39. A. pay B. take C. cost D. spend
40. A. lazy B. free C. busy D. hard-working
四、阅读理解（共15小题；共30分）
A
Do you kn ( http: / / www.21cnjy.com )ow why people cry We cry when we're sad. We cry when we're very happy. We cry when we're mad. We cry when we're afraid. We cry when we have deep feelings. Tear glands(泪腺) of our body make the tears. Tears are 98% water, and there are three kinds of tears.
Basal tears( ( http: / / www.21cnjy.com )基本眼泪). These tears can wash our eyes and keep them wet, clean and healthy. Our body makes these tears even when we are sleeping.
Reflex tea ( http: / / www.21cnjy.com )rs(反射眼泪). When some irritants(刺激物) come close or into our eyes, tears may appear. You may find there is "water" in our eyes in winter. That is because cold air and wind are irritants.
Feeling tea ( http: / / www.21cnjy.com )rs. When we are upset about something, most of us feel better after crying. Doctors aren't sure why. They think when we are upset or worried, our bodies make some bad chemicals. And crying may be a better way to clean them.
So if y ( http: / / www.21cnjy.com )ou are sad, you can have a good cry. But remember not to cry too often.
41. How many kinds of tears are there according to the passage
A. Five. B. Four. C. Three. D. Two.
42. What does the word "water" mean in the 3rd paragraph
A. Cold air. B. Wind. C. Chemicals. D. Tears.
43. Basal tears can .
A. keep our eyes big and bright
B. keep our eyes clean and healthy
C. keep our eyes red and wet
D. keep our eyes bright and beautiful
44. When we are upset, why do we feel better after crying
A. Because tears can wash away the bad chemicals our body makes.
B. Because crying often can keep us happy.
C. Because our body makes tears even when we are sleeping.
D. Because we often cry in cold weather.
45. Which of the following sentences is NOT true
A. Tom won the football game, so he had a cry.
B. 3-year-old Pepper stays at home alone, and she cries a lot.
C. We may cry when we meet an old friend in the street.
D. Crying can make us feel better, so we can often cry.
B
Have you ever wondered
Why do airplanes take longer to fly west than east
It can take ( http: / / www.21cnjy.com ) five hours to go west-east from New York (NY) to London but seven hours to travel east-west from London to NY. The reason for the difference is an atmospheric phenomenon (大气现象) known as the jet stream (气流). The jet stream is a very high altitude (= above sea level) wind which always blows from the west to the east across the Atlantic. So the planes moving at a constant air speed go faster from the west to the east when they are moving with the wind than in the opposite.
What would ha ( http: / / www.21cnjy.com )ppen if the gravity on Earth was suddenly turned off
Suppos ( http: / / www.21cnjy.com )ing we could magically turn off gravity. Would buildings and other buildings float away What happened would depend on (依靠) how strongly the things were attached(吸附) to the earth. The earth is moving at quite a speed, moving at over a thousand miles per hour. If you turn something around your head on a string, it goes around in a circle until you let go of the string. Then it flies off in a straight line. "Turning off" gravity would be like letting go of the string. Things not attached to the earth would fly off in a straight line. People in buildings would suddenly shoot upwards at a great speed until they hit the ceiling (= top surface of a room). Most things outside would fly off into space.
46. What information can we get from the first passage
A. It is the jet stream that affects how fast airplanes fly
B. Planes go slower when they are moving with the wind
C. It takes more t ( http: / / www.21cnjy.com )ime to fly from NY to London than from London to NY
D. The jet stream ( http: / / www.21cnjy.com )always blows from the east to the west across the Atlantic
47. The underlined w ( http: / / www.21cnjy.com )ord “shoot” in the 2nd paragraph means “ ”.
A. send for B. move quickly C. come out D. grow quickly
48. It can be known that without gravity .
A. buildings and other structures would float away
B. trees and buildings would not so easily fly off
C. something around your head would not float away
D. everything outside buildings would fly off into space
49. Which of the following is not mentioned in the passage
A. It takes seven hours to travel from London to New York
B. The earth is moving at a high speed
C. Things on the earth will float away if there's no gravity
D. Things not attached to the earth would fly off in a straight line
50. Where can we read this passage
A. In a research paper B. In a short story
C. In a travel magazine D. In a student's book
C
A robot is a m ( http: / / www.21cnjy.com )achine. But it is not just any machine. It is a special kind of machine. It is a machine that moves. It follows instructions. The instructions come from a computer. Because it is a machine, it does not make mistakes. And it does not get tired. And it never complains. Unless you tell it to!
Robots are ( http: / / www.21cnjy.com ) all around us. Some robots are used to make things. For example, robots can help make cars. Some robots are used to explore dangerous places. For example, robots can help explore volcanoes. Some robots are used to clean things. These robots can help vacuum your house. Some robots can even recognize words. They can be used to help answer telephone calls.
Some robots ( http: / / www.21cnjy.com ) look like humans. But most robots do not. Most robots just look like machines. Long ago, people imagined robots. Over 2,000 years ago, a famous poet imagined robots. The poet's name was Homer. His robots were made of gold. They cleaned things and they made things. But they were not real. They were imaginary. Nobody was able to make a real robot. The first real robot was made in 1961. It was called Unimate. It was used to help make cars. It looked like a giant arm.
In the futur ( http: / / www.21cnjy.com )e, we will have even more robots. They will do things that we can't do. Or they will do things that we don't want to do. Or they will do things that are too dangerous for us. Robots will help us fight fires. They will help us fight wars. They will help us fight sickness. They will help us discover things.
They will help make life better.
51. As used in pa ( http: / / www.21cnjy.com )ragraph 1, we can understand that something special is NOT .
A. normal B. expensive C. perfect D. tired
52. What is the main purpose of paragraph 2
A. To show how easy it is to make a robot.
B. To tell what a robot is.
C. To describe the things a robot can do.
D. To explain the difference between a robot and a machine.
53. According to the passage, when was the first real robot made
A. 1961. B. 1900.
C. 2003. D. 2000 years ago.
54. Using the info ( http: / / www.21cnjy.com )rmation in the passage as a guide, which of these gives the best use of a robot
A. To help make a sandwich. B. To help tie shoes.
C. To help read a book. D. To help explore Mars.
55. Which of these ( http: / / www.21cnjy.com )statements correctly summarizes how the author of this passage feels about robots
A. Robots are old. B. Robots are confusing.
C. Robots are helpful. D. Robots are dangerous.
五、单词拼写(单句首字母填空)（共5小题；共5分）
56. That's c (正确的).
57. She invented a new m of teaching English.
58. The boss p ( http: / / www.21cnjy.com )romised to d our pay next month, so we can make more money.
59. The best ( http: / / www.21cnjy.com )part of the trip was the scenery. It was f .
60. Her d about the wild animals will change people's traditional idea about their behaviors.
六、单词拼写(根据中文提示拼写单词)（共5小题；共5分）
61. Hey! Relax! No one ( http: / / www.21cnjy.com ) will (强迫) you to do that if you're not willing to.
62. There will be thre ( http: / / www.21cnjy.com )e football (比赛) this month in our school.
63. Smoking will (当然) do harm to your health.
64. --- Who's that lovely boy, Mr. Li
--- Oh, he's my (孙子). His name's Li Bo.
65. With the ( http: / / www.21cnjy.com ) (发展) of railways, it's easy for people to travel around China.
七、翻译(根据中文提示完成句子)（共10小题；共20分）
66. 总的来说，我同意你所说的。（仅限2词）
, I agree with what you said.
67. 在日本当你去拜访朋友时，进门之前要脱掉鞋子。（词数不限）
When you visit a ( http: / / www.21cnjy.com ) friend in Japan, you should your shoes before entering his home.
68. 他回家前为了买那些书籍已用光了所有的钱。
Before he came home, ( http: / / www.21cnjy.com )he all his money to buy those books.
69. He sleeps (白天期间), but (在晚上) he gets up and eats leaves.
70. 汤姆的作文除了几处拼写错误之外，是非常好的。
Tom's composition ( http: / / www.21cnjy.com ) is excellent some spelling mistakes.
71. 孩子们的疾病和不健康的食物有关。
The children's i ( http: / / www.21cnjy.com )llness unhealthy food.
72. 你的DNA有数以亿计的指令来解释你为什么是这样的。
Your DNA has that explain why you are the way you are.
73. 这是我曾经工作过的那个村子。（仅限3词）
This is I ever worked in.
74. This is the village (我们去年参观过的).（词数不限）
75. 如果我是你的话，我就找个看起来很和蔼的人交流。(字数不限)
If I were you, I'd like to talk to .
八、适当形式填空(单句适当形式)（共5小题；共5分）
76. These (discover) attracted many famous scientists in the world.
77. Both parents a ( http: / / www.21cnjy.com )nd teachers should care about the children's (develop).
78. Why not give so ( http: / / www.21cnjy.com )me (suggest) about the vacation plan
79. He used ( http: / / www.21cnjy.com )the (science) method to achieve his dream.
80. We don't want ( http: / / www.21cnjy.com ) to put (press) on you to make a decision, but we haven't much time left.
九、阅读与表达(问答式)（共5小题；共10分）
O ( http: / / www.21cnjy.com )n 19th September 1783, Pilatre De Rozier, a scientist, sent the first hot air balloon. The passengers were three animals and the balloon stayed in the air for about 15 minutes before hitting back to the ground.
The ( http: / / www.21cnjy.com )first manned(载人的) flight was about 2 months later, with a balloon made by 2 French brothers. The balloon flew for a period of 20 minutes.
Sailing t ( http: / / www.21cnjy.com )hrough the sky in the balloon, high above buildings and trees, you can't feel or hear the wind because you're traveling in the same direction and at the same speed as it is.
A hot ai ( http: / / www.21cnjy.com )r balloon has three main parts: the balloon, called an envelope; a basket, where passengers ride; and a burner system, which supplies the hot air.
Most ball ( http: / / www.21cnjy.com )oon envelopes are made of strong, lightweight nylon(尼龙). They are different in size and shape, but they have to be really, really big to lift even one person. Most weigh more than an adult man.
The b ( http: / / www.21cnjy.com )asket is usually made of wicker(柳条), which is strong but not too hard. It needs to bend a bit for a soft landing, just like a good jumper bends her legs instead of keeping them straight when she lands.
The hot ( http: / / www.21cnjy.com ) air balloon works on the theory that hot air rises faster than cooler air. When the burner system is turned on, it makes a noisy sound, but once the balloon is flying, the burner can be turned off. The air in the envelope will then cool, and the balloon will slowly go down unless the pilot starts the burner system again.
To control a h ( http: / / www.21cnjy.com )ot air balloon, a pilot adds hot air to it to go up or lets the air out to go down until he finds a wind blowing in the direction he wants to fly. But no matter which way the wind blows, the passengers have an amazing bird's-eye view of the world.
根据短文内容，完成下列小题。
81. Who were the passengers on the first hot air balloon

82. Did the first manned balloon fly for 20 minutes

83. Why is the basket usually made of wicker

84. How does a pilot control the hot air balloon

85. What are the main points in this passage

十、补全对话(选择)（共5小题；共10分）
A: Hello, Long Yulin ( http: / / www.21cnjy.com ). I know you're one of the best graduates. 86.
B: Yes, please.
A: How do you feel now
B: 87.
A: What are you going to do before leaving school
B: I'm going to tak ( http: / / www.21cnjy.com )e some photos with my teachers and classmates, give gifts to my teachers and write best wishes to my classmates.
A: Will you miss your teachers and classmates
B: Sure, and I'll reme ( http: / / www.21cnjy.com )mber the past three years of my school life forever.
A: 88.
B: By sending e-mails, making telephone calls or writing letters.
A: When are you going to have a get-together with your classmates
B: We'll be back for our school's 20th anniversary ceremony.
A: 89.
B: I'm going to ( http: / / www.21cnjy.com ) be a scientist, so I'll keep on working hard at my lessons to make my dream come true.
A: 90.
B: First, I want ( http: / / www.21cnjy.com )to say "Thanks" to my teachers for teaching me so well. Second, I wish my teachers and classmates health, happiness and good luck. At last, I hope our school will continue to be the top in Tongren.
A. What's your plan for the future
B. How will you keep in touch with them
C. I feel excited and sad.
D. May I ask you some questions
E. What else would you like to say to your teachers and classmates
答案
二、单项选择
21. B 22. A 23. A 24. A 25. D 26. B 27. C 28. A 29. D 30. B
三、完形填空
31. A 32. C 33. C 34. C 35. D 36. A 37. D 38. A 39. D 40. C
四、阅读理解
41. C 42. D 43. B 44. A 45. D 46. A 47. B 48. B 49. C 50. D
51. A 52. C 53. A 54. D 55. C
五、单词拼写(单句首字母填空)
56. correct 57. method 58. double 59. fantastic 60. discovery
六、单词拼写(根据中文提示拼写单词)
61. force 62. matches 63. certainly 64. grandson 65. development
七、翻译(根据中文提示完成句子)
66. In general ( http: / / www.21cnjy.com ) 67. take off 68. had used up 69. in the daytime; at night
70. except for 71. is related to 72. billions of instructions
73. the village that 74. that/which we visited last year
75. someone/somebody who looks friendly/kind
八、适当形式填空(单句适当形式)
76. discoveries 77. de ( http: / / www.21cnjy.com )velopment 78. suggestions 79. scientific 80. pressure
九、阅读与表达(问答式)
81. Three animals. 82. Yes, it did.
83. Because wicker is strong but not too hard.
84. The pilot adds ho ( http: / / www.21cnjy.com )t air to the balloon to go up or lets the air out to go down.
85. The history of the ( http: / / www.21cnjy.com ) hot air balloon, the main parts of it and how it works.
十、补全对话(选择)
86. D 87. C 88. B 89. A 90. E