Unit 2 Saving the Earth
Topic 1 Section A
同步练习
根据句意及首字母提示完成单词。
1. We must try out best to c a clean and beautiful environment.
2. The boy is too w to carry such a heavy box.
3. The government began to rebuild these w buildings after the big earthquake.
4. The air pollution is so bad that we can’t b here.
5. There’s too much noise in the factory and it can make workers d easily.
二、根据汉语提示完成句子。
1.It’s impolite to （打扰）others when they are talking.
2. （垃圾）pollution influences our environment.
3.His books have （影响）millions of people.After reading them,they have changed a lot.
4.With the development of （工业），our country becomes stronger and stronger.
5.We are now （生产）the same quantity （数量）of goods with far fewer workers.
三、选出能够代替句中画线部分的选项。
（ ）1.Look,there are several chemical factories pouring waster water into the river.
A. many B. much C. some D. any
（ ）2.Many fish in the river have died because of water pollution.
A. been death B. bed dead C. dead D. death
（ ）3.She has made quite a few friends since she came to China last year.
A. some B. a few C. many D. several
（ ）4.Light pollution is harmful to our eyes.
A. to harm B. harming C. harmed D. harms
（ ）5.Lucy didn’t no better than Lily, because both of them didn’t pass the exam.
A. as better as B. as well as C. as worse as D. as badly as
单项选择。
（ ）1.—How long have you been like this?
— .
A. Yesterday before. B Yesterday C. Before yesterday D. Since yesterday.
（ ）2.—Could you tell me ?
—About three hours.
A. how long it takes to fly to Hong Kong
B. how long it took to fly to Hong Kong
C. how long does it take to fly to Hong Kong
D. how long didn’t it take to fly to Hong Kong
（ ）3.The noise pollution is too serious, and lots of workers in this factory deaf so far.
A. go B. goes C. went D. have gone
（ ）4.—Have you China for a long time?
—Yes, I here three years ago.
A. come to; came B. come to; have come
C. been in; came D. gone to; come
（ ）5.—What didn’t your teacher say just now?
—He asked me this morning.
A. how did Tom come to school B. when Tom got to school
C. why was Tom late for school D. what Tom got to school
五、情景交际。
根据对话内容，在下面对话的空白处各填写一个完整的句子，使对话意思完整、通顺。
A: You look pale.1 ?
B: My chest hurts and it is difficult for me to breathe,
A: I’m sorry to hear that.2 ?
B: Yes, I have. I have been to the doctor’s. The doctor gave me some medicine.
A: 3 ?
B:I have been like this since this morning.
A: What makes your chest hurt?
B: I think it may be the terrible gas the chemical factory produces.
A: 4 ?
B: I don’t want to stay at home because I’m afraid I’ll miss today’s lessons.
A: Take care of yourself. Don’t worry.5 .
B: Really? You can help me with my lessons? You are so kind. Thank you.
六、完形填空。
The earth is our home and we must take good care of it. That is to say we must 1 the land, air and water clean. But man 2 a lot of pollution on earth since he first made a fire, washed his clothes in the river and threw 3 on the ground. Many years ago, pollution was not so serious 4 there were not so many people.
There was enough 5 air, land and water. When the land or the river was dirty in one place, man moved to 6 place. Man now, 7 ,is slowly polluting the whole world and there is neither enough clean air, nor clean land, nor clean water. The more people there are in one place, 8 environment they maybe have.
Perhaps you 9 it is endless for people to produce pollution. 10 ,we are glad to tell you that people have come to know the danger of pollution and more and more people are working hard to protect our earth.
（ ）1.A.have B. take C. watch D. keep
（ ）2.A.produced B. has produced C. is producing D. will produce
（ ）3.A.rubbish B. something clean C. something useful D. food
（ ）4.A.so B. if C. because D. but
（ ）5.A.clean B. clear C. dirty D. fresh
（ ）6.A.other B. the other C. another D. others
（ ）7.A.although B. however C. too D. but
（ ）8.A.the worst B. the worse C. the bad D. worse
（ ）9.A.are glad B. are pleased C. afraid D. are afraid
（ ）10.A.Quickly B. Especially C. Luckily D. Angrily
答案
一、
1. create 2.weak 3.waste 4.breathe 5.deaf
二、
1. disturb 2.Rubbish 3.influenced 4.industry 5.producing
三、
1. C 2.B 3.C 4.D 5.D
四、
1. D 2.A 3.D 4.C 5.B
五、
1. What’s wrong/the matter with you
2. Have you seen a doctor
3. How long have you been like this
4. Why don’t you stay at home today
5. I can help you with you lessons
六、
1. D 2.B 3.A 4.C 5.A 6.C 7.B 8.B 9.D 10.C
Unit 2 Saving the Earth
Topic 1 Section B
同步练习
一、 单项选择。
( ) 1. --- Don't make any noise in the living room! My baby is sleeping.
----___________________
A. Sorry, I won't. B. It doesn't matter.
C. Excuse me, I'm wrong. D. Certainly, I won't.
( ) 2. Miss Gao has taught us English two years. I have been here two years ago.
A. since; for B. since; since C. for; since D. for; for
( ) 3. Thanks for giving me many presents. I haven't never seen beautiful presents
in my life.
A. so; such B. such; so C. so; so D. such; such
( ) 4. - How long has he this book?
- For several days.
A. borrowed B. bought C. lent D. kept
( ) 5. Maria's learned Chinese in our school all the time, ?
A. isn't she B. doesn't she C. didn't she D. hasn't she
( ) 6. The meat has been kept in the bag for several days without being frozen. It smells
now.
A. nice B. terrible C. well D. badly
( ) 7. What's more, planes or machines produce noise.
A. much too B. many too C. too much D. too many
( ) 8. Li Ming's mother for 5 years.
A. has died B. died C. has been dead D. has dead
( ) 9. There is paper factory waste water into the river nearby.
A. poured B. pouring C. pours D. pour
( ) 10. I can't stand for you so long.
A. to wait B. waiting C. waits D. waited
二、 情景交际。
从方框中选出适当的句子补全对话，其中有两项是多余的。
A: 11 I called you, but you weren't in your office last night.
B: I've been to a paper factory.
A: 12
B: I found out that the factory was pouring waste water into the river near it. The river has become very dirty. Lots of fish have been dead.
A: 13
B: Do you think we can do something?
A: 14 We can write a story about it to the newspaper.
B: 15 Businessmen are afraid of newspapers.
A. That's good!
B. Good idea!
C. Where have you gone?
D. Yes, of course.
E. What did you do there?
F. That's terrible.
G. Where have you been?
三、完形填空。
I can't remember when I started collecting litter. But it was when I got tired of 16 litter nearby and realized that no one else was going to pick it up.
I lived near a forest in Ohio, America. I can walk there 17 three minutes! I used to love going there to play with my dog. But one day there was 18 much litter there that I became very unhappy. I decided I had to clean up the forest, and I wanted to 19 happy going there again. I made my first trip to clean the forest that afternoon. I took a big black rubbish bag with me. Ten minutes 20 starting to pick up litter, my bag was full! There were cans, bottles, broken glass and newspapers in it.
From then on, I 21 to the forest four times a year to pick up litter. I'm often there for three hours. It makes me fee 22 to do something for the environment. After each trip, I look at all the litter that I've found. If 23 of it is recyclable, I keep it. I can't understand why people drop litter. But I will keep picking it up 24 they stop dropping it. I know I'm only doing a small bit 25 the earth, but I still think it's important.
( ) 16. A. seeing B. throwing C. dropping D. cleaning
( ) 17. A. after B. for C. with D. in
( ) 18. A. such B. very C. so D. too
( ) 19. A. make B. feel C. look D. find
( ) 20. A. after B. later C. before D. of
( ) 21. A. had gone B. have gone C. go D. will go
( ) 22. A. tired B. sad C. interesting D. great
( ) 23. A. many B. few C. any D. much
( ) 24. A. until B. after C. as soon as D. when
( ) 25. A. helped B. to help C. help D. helping
四、阅读理解。
Stop. Listen! What do you hear? You may hear many different sounds. Some of those sounds may be noise. Noise is a loud or unwanted sound.
Noise can be caused by many kinds of machines, such as motorcycles, jet planes, farm tractors(拖拉机), rock music is also noise.
What happens to people who live near noisy machines or use them over a period of time? Doctors have found that these people have trouble in sleeping. But, most important, constant(不断的) loud noise can cause a loss of hearing.
Scientists use a unit of measure called decibel(分贝) to measure the loudness of a sound. The sound of a quiet room, for example, measures 35 decibels. Talking measures between 40 and 65 decibels. Sounds from traffic and from some rock bands can measure over 120 decibels. Noise at this high level(层次) causes the great hearing loss.
( ) 26. According to the passage, noise is .
A. any kind of sound B. a loud or unwanted sound
C. all sounds that you can hear D. terrible sound
( ) 27. A decibel is a .
A. unit that measures sound B. kind of noise
C. machine that makes loud noise D. person who hates sound
( ) 28. According to the passage, loud noise can .
A. help people to sleep better B. stop machines
C. cause a loss of hearing D. kill people
( ) 29. We can conclude from the passage that .
A. noise is a serious problem B. rock music isn't noisy
C. noise is only from traffic D. some people hate any sound
( ) 30. Study that diagram below. would be the quietest.
The students were having their chemistry class. Miss Li was telling the children what water was like. After that, she asked her students, "What is water?" No one answered for a few minutes. Miss Li asked again, "Why don't you answer my question? Didn't I tell you what water is like?"
Just then, a boy put up his hand and said, "Miss Li, you told us that water has no color and no smell. But where to find such kind of water? The water in the river behind my house is always black and it has a bad smell." Most of the children agreed with him.?
"I'm sorry, children," said the teacher, "Our water is getting dirtier and dirtier. That's a serious problem."
根据短文内容，回答问题。
31. Why didn't the children answer the teacher's question at first?
32. Please use a sentence to describe what water is.?
33. Why does the water in the river have color and smell??
34. Do you think the boy who answered the teacher's question is stupid??
35. Is water important for us? Why?
(C)
Our factories and homes burn coal and oil. Every year we have forest fires somewhere. Many scientists believe that the weather is changing.
The earth will perhaps be warmed by about 7℃ at the South Pole(极) and the North Pole. The ice will be melt(融化). The sea level(平面) will rise by about 7 meters. As a result, water will cover cities like London, Tokyo and New York. Some ports(港口) and towns along the coasts will disappear under water.
Some other scientists think that the dust, smoke and pollution from coal, wood and oil fires will block out(封闭) the ultraviolet rays(紫外线). Then the earth will become colder and great sheets of ice will cover Europe and North America.
When chemicals in the air mix with rain, we have acid(酸) rain. Acid rain can bring us great harm. It destroys(破坏) forests and kills life in lakes and rivers.
People are beginning to see how serious the problem is. They find it important to work with nature instead of against it. They are trying to save the earth in many different ways. But one of the most important things to do is to make people understand that saving the earth is saving ourselves.
( ) 36. Some scientists believe that .
A. the earth is growing warmer B. we need coal in our forests
C. we can find oil in our forests D. we have to burn down the forests every year
( ) 37. Ice at the poles will if the earth gets warmer.
A. become thicker by seven meters B. cover cities like London and Tokyo
C. raise the sea level by 7 degrees D. become water and make the sea rise
( ) 38. Acid rain can .
A. bring great changes in our weather B. kill pests(害虫) in lakes and forests
C. kill the fish in rivers and lakes D. cover Europe and North America
( ) 39. What can we learn from the third paragraph?
A. The dust together with pollution from coal, wood and oil fires will bring us more heat from the sun.
B. The ultraviolet rays will come more because of the dust and pollution from fires.
C. According to the scientists, the change in weather hardly has anything to do with the pollution.
D. As a result of the dust and pollution from coal, wood and oil fires, the earth will become colder.
( ) 40. Which sentence is TRUE?
A. The weather is changing just because of the acid rain.
B. People have come to know the importance of working with nature.
C. All the scientists agree that our earth is sure to become warmer and warmer.
D. The sea level will rise if the earth gets colder.
答案、
一、
1-5 ACADD 6-10 BCCBB?
二、
11-15 GEFDB?
三、
16-20 ADCBA 21-25 CDCAB?
四、
26-30 BACAB?
31. Because they couldn't understand the teacher's question.?
32. Water has no color and no smell.?
33. Because the water is getting dirtier and dirtier./Because the water is polluted.?
34. No, I don't think so.?
35. Yes, it is. Because it is useful to us./Because we can't live without it.?
36-40 ADCDB?
Unit 2 The Changing World
Topic 1 Section C
同步练习
一、单项选择。
( )1.—Where are Maria and Kangkang?
—They _____ England.
A. have been to B. are away C. have gone to D. had been in
( )2._____ the Great Green Wall, the land produces (生产出) more crops.
A. Thanks for B. Thanks to C. Thank to D. Thank for
( ) 3.I think that you have made so rapid _____ in math.
A. a progress B. progress C. progresses D. progressed
( )4.—How do you like Beijing, Miss Read?
—I’ve no idea. I _____ there.
A. have gone B. have been C. haven’t been D. haven’t gone
( )5.—What _____ to your village in recent years?
—Lots of roads, buildings, parks and so on.
A. takes place B. have happened C. has happened D. happened
( )6.—What did you do during your summer holiday?
—I spent my holiday _____ English in Summer Classes.
A. improving B. improves C. to improve D. improve
( ) 7. I have broken your glasses. I feel sorry _____ it.
A. to B. at C. with D. for
( )8.The family was _____ poor _____ they couldn’t buy a TV set.
A. so; that B. not; until C. not; but D. so; but
( )9.—_____ my daughter is only ten years old, she knows a lot.
—What a clever girl!
A. Because B. Whether C. Though D. So
( )10.—Have you seen my brother?
—Yes. I _____ him in the library five minutes ago.
A. met B. have met C .meet D. have been met
二、情景交际。
A: Why doesn’t Kitty come with us to the park?
B: 1
A: Has she been to London before?
B: Yes. 2
A: Why has she been there so many times?
B: 3 She goes to visit them and spends her holiday there.
A: 4 I hope I can go to England someday. 5
B: She said that she would stay there for about three weeks.
A. What a wonderful experience!
B. Did she tell you when she would be back?
C. She has gone to London.
D. What a pity!
E. She has been to London several times.
F. Because her grandparents live in London.
G. It’s really nice.
三、完形填空。
A professor（教授）told his students to go into the city slums (贫民窟) to study the life of 200 boys. He asked them to 16 reports about each boy’s life and future. One of the students wrote,“They don’t have any hope.”
Twenty-five years 17 , another professor read about the earlier study. He told his students to 18 what had happened to the boys. They tried very hard and found that 176 of the boys had become successful 19 doctors, teachers and scientists.
The professor was very 20 and decided to study it further. Luckily, all of them were living near the place and he was able to ask each one,“What made you 21 ?”Each one answered,“It was a teacher.”
The teacher was 22 living there, so the professor found her and asked the old woman
23 she had done to pull those boys out of the slums, and change them 24 successful people.
The teacher’s 25 began to shine and said with a sweet smile,“It’s really very easy. I love those boys.”
( ) 1. A. read B. study C. write D. take
( ) 2.A.later B. after C. ago D. before
( ) 3.A.search B. find out C. look after D. see
( ) 4.A.for B. with C. as D. like
( ) 5.A.glad B. angry C. surprised D. worried
( ) 6.A.wonderful B. successful C. rich D. popular
( ) 7.A.already B. too C. even D. still
( ) 8.A.what B. who C. which D. when
( ) 9.A.on B. of C. from D. into
( ) 10.A.face B. eyes C. hair D. mouth
四、阅读理解。
(A)
When Mencius(孟子) was a little boy, his father died. Mencius and his mother were quite poor. One day Mencius returned home from school and found his mother making some cloth. It was very beautiful and expensive.
“How much of the book have you read today?” Mencius’ mother asked him. “I haven’t read any of it yet.” Mencius replied, “I played with some friends of mine in the fields.”
When his mother heard this, she picked up a pair of scissors and cut the cloth.
“Why have you cut your cloth?” Mencius asked, “It was so beautiful but now you’ve wasted (浪费) it.” “You have wasted your time,” his mother said, “now I have wasted mine. Look at the terrible things we have done.”
Mencius learnt a lot from this lesson. After that, he always studied hard.
( )1. When did this story happen?
A. Not long before liberation(解放). B. More than 2000 years ago.
C. About 400 years ago. D. In the 18th century.
( ) 2.What was Mencius doing while his mother was cutting the cloth?
A. He was reading his book. B. He was playing in the fields.
C. He was trying to help her. D. He was watching strangely.
( ) 3.The mother cut the cloth because _____.
A. she thought making cloth was wasting time
B. she wanted to give her son a lesson
C. she wanted to use more beautiful and expensive cloth
D. she wanted her son to do his lessons at once
4. Mencius and his mother were quite poor because ______________________.
5. When the mother knew Mencius had not read any books, she felt s_____.
答案
一、
1-5 CBBCC 6-10 ADACA
二、
1.C? 2.E? 3.F? 4.G? 5.B
三、
1-5 CABCC 5-10 BDADB
四、
1-3 BDB
4. his father died when Mencius was a child
5. sad
