Unit 4 Amazing Science
Topic 3 Section A
同步练习
一、单项选择
( ) 1. ---Can you tell ______?
---At 8:00tomorrow morning.
A. when will we start B. when we started
C. when to start D. where to start
( ) 2.______he ____ with foreigners in English ?-----Yes ,he dare.
A. Dare; communicate B. Are; to communicate
C. Does; dare communicate D. Is; dare communicate
( ) 3.I think you’d better ______at English.
A. hard work B. to work hard C. work hard D. working hard
( ) 4. No one can tell me ___ next.
A. what to do it B. how do it C. how to do D. what to do
二、根据短文内容和首字母的提示，把所缺单词完整地填写在短文后的横线上。
Victor likes basketball very much. He often stays out to play basketball with his friends and a 1 home very late. Yesterday he played for 4 hours and f 2 when he should go home. His father and mother felt m 3 about that. However, Victor thinks it is important to spend some time on his hobbies, which can help him relax and make his life colorful. He wishes that he could get his p 4 support. At last, they ask him not to give up his hobbies but not to influence his study, e 5 .
1. ______ 2. ______ 3. ______ 4 ______ 5. ______
三、完形填空。
When people talk about air pollution, they usually think of outdoor air pollution. But do you know that air pollution also exists（存在）in homes,offices,hotels and other building? The air in your home can be 2 to 100 times more 1 than the air outdoors! In fact, some American doctors say that 50% of illnesses have 2 to do with polluted indoor air.
Smoking and cooking, heating appliances（设备），building materials,paints,and furniture are the main 3 of indoor air pollution. Air pollution 4 our health in many ways. Young children and the old often suffer more from it. Indoor air pollution can 5 people’s eyes, noses and throats. Air pollution, 6 indoor and outdoor, can also cause lung cancer, heart disease, and even harm the brain! It is said that half a million young kids and women die each year in India 7 indoor air pollution.
There are many ways to reduce（减少）indoor air pollution. For example, 8 the amount smoke and try to 9 your family members and relatives from smoking. Environment-friendly materials pollute 10 and work well.
（ ）1.A.crowded B. friendly C. pleasant D. polluted
（ ）2.A.something B. anything C. everything D. nothing
（ ）3.A.reasons B. causes C. things D. behavior
（ ）4.A.helps B. influences C. kills D. prevents
（ ）5.A.open B. close C. harm D. clean
（ ）6.A.both B. either C. all D. neither
（ ）7.A.thanks to B. instead of C. with the help of D. because of
（ ）8.A.let B. rise C. increase D. make
（ ）9.A.stop B. change C. disturb D. destory
（ ）10.A.more B. less C. fewer D. worse
答案
一、
CACC
二、
1. arrives 2.forgot 3.mad 4.parents’ 5.either
三、
1. D 2.A 3.B 4.B 5.C 6.A 7.D 8.C 9.A 10.B
Unit 4 Amazing Science
Topic 3 Section B
同步练习
一、单项选择
（ ）1.—How many birds can you see in the tree?
— .
A. None B. No one. C. Nobody D. No.
（ ）2. we were quite tired, we still went on working.
A. Because;/ B. Because; so
C. Although;/ D. Although; but
（ ）3.Everything goes well, ?
A. does it B. doesn’t it C. do they D. don’t they
（ ）4.He wants to be a doctor his parents want him to the army.
A. while; join B. when; join C. while; join in D. when; join in
（ ）5.We should not let playing computer game too much of our time.
A. take off B. take up C. take down D. take away
二、同义句改写
1．The children played happily in the zoo yesterday.
The children ________ ________ in the zoo yesterday.
2．The problem is too difficult for me to work out.
The problem isn’t ________ ________ for me to work out.
3．Hurry up, and you’ll be on time for the party.
________ you ________ hurry, you’ll be late for the party.
4．It is five years since he left his hometown.
He has ________ ________ from his hometown for five years.
5．The film began at 2: 00 p. m. and ended at 4: 30 p. m.
The film ________ two and a half ________.
三、阅读理解
Dick lived in England. One day in January he said to his wife, "I'm going to fly to New York next week because I've got some work there." "Where are you going to stay there?" his wife asked. "I don't know yet." Dick answered. "Please send me your address from there in a telegram (电报)," his wife said. "All right," Dick answered.
He flew to New York on January 31st and found a nice hotel in the center of the city. He put his things in his room and then he sent his wife a telegram. He put the address of his hotel in it.
In the evening he didn't have any work, so he went to a cinema. He came out at nine o'clock and said, "Now I'm going back to my hotel and have a nice dinner."
He found a taxi (出租车) and the driver said, "Where do you want to go?" But Dick didn't remember the name and address of his hotel.
"Which hotel are my things in?" he said, "And what am I going to do tonight?" But the driver of the taxi did not know. So Dick got out and went into a post office. There he sent his wife another telegram, and in it he wrote, "Please send me my address at this post office."
Choose the right answer
1. Dick flew to New York because ___.
A. he went there for a holiday B. he had work there
C. he went there for sightseeing (观光) D. his home was there
2. Why did his wife want a telegram from him?
A. Because she didn't know his address yet B. Because she wanted to go to New York, too
C. Because she might send him another telegram
D. Because she couldn't leave her husband by himself in New York
3. Where did Dick stay in New York?
A. In the center of the city. B. In a hotel.
C. In a restaurant. D. At his friend's house.
4. Who would send him the name and address of his hotel?
A. The manager (经理) of his hotel. B. The police office.
C. The taxi driver. D. His wife.
5. Which of the following is not true?
A. Dick stayed at a nice hotel in the center of the city.
B. Dick didn't work on the first night of his arrival.
C. Dick forgot to send his wife a telegram.
D. Dick wanted to go back to his hotel in a taxi.
答案
一、
1.A 2.C 3.B 4.A 5.B
二、
1．enjoyed themselves 2．easy enough 3．If; don’t 4．been away 5．lasted; hours
三、
1-5 B A B D C
Unit 4 Amazing Science
Topic 3 Section C
同步练习
一、短文填空
阅读下列短文，根据短文内容及首字母提示补全文中所缺的单词，答案写在题后的横线上。
As teenagers, you have many dreams. These dreams can be very big, such as winning the Nobel Prize, or they can be small. You may just want to become one of the ten best students in your c__1___.
Once you find a dream, what do you do w___2__ it? Do you ever try to make your dream real? Follow Your Heart by Australian writer Andrew Matthews tells us that m__3___ our dreams real is life’s biggest challenge.
You may think you’re not very good at some school subjects, or that it is impossible for you to become a writer. These kinds of thoughts p___4___ you from getting your dream, the book says.
In f___5___, everyone can make his dream come true. The first thing you must do is to remember what your dream is.
D___6____ let it leave your heart. Keep telling yourself what you want. Do this step by step and your dream will come true faster because a big dream is, in fact, many small d___7___. You must also never give up your dream.
There will be difficulties on the road to your dreams. But the biggest difficulty comes from yourself. You need to d__8____ what is the most important. Studying instead of watching TV will l__9____ to better exam results, while saving five yuan instead of buying an ice cream means you can buy a new book. As you get c__10_____ to your dream, it may change a little. This is good as you have the chance to learn more skills and find new interests.
1._________ 2.__________ 3.__________ 4.__________ 5.____________
6._________7.__________ 8.__________ 9.__________ 10.____________
二、根据短文意思和所给字母，写出一个完整正确的单词。
As everyone knows, （1）e_______ fast walk or slow walk does good to the muscles and lungs of human. So people walk in build up their body, or to lose（2）w______. But only some of them know that taking a walk every day is also good for（3）p______ man’s heart. Heart attack has become the first disease in the world（4）b______ more and more people suffer from it.
Taking a walk can improve the blood supply to our hearts. If you try to walk as（5）o______ as possible, you’ll have a healthier heart.
1._________ 2.__________ 3.__________ 4.__________ 5.____________
三．阅读理解
Now satellites are helping to forecast（预报）the weather. They are in space, and they can reach any part of the world. The satellites take pictures of the atmosphere（大气）, because this is where the weather forms（形成）. They send these pictures to the weather stations. So meteorologists（气象学家）can see the weather of any part of the world. From the pictures, the scientists can often say how the weather will change.
Today, nearly five hundred weather stations in sixty countries receive satellite pictures. When they receive new pictures, the meteorologists compare（比较）them with earlier ones. Perhaps they may find that the clouds have changed during the last few hours. This may mean that the weather on the ground may soon change, too. In their next weather forecast, the meteorologists can say this.
So the weather satellites are a great help to the meteorologists. Before satellites were invented, the scientists could forecast the weather for about 24 or 48 hours. Now they can make good forecasts for three or five days. Soon, perhaps, they may be able to forecast the weather for a week or more ahead（提前）.
1. Satellites travel _____________.
A. in space?????????????? B. in the atmosphere
C. above the ground?????? D. above space
2. Why do we use the weather satellites to take pictures of the atmosphere? Because __________.
A. the weather satellites can do it easily B. clouds form there
C. the weather forms there D. the pictures can forecast the weather
3. Meteorologists forecast the weather __________.
A. when they have received satellite pictures
B. after they have compared new satellite pictures with earlier ones
C. before they received satellite pictures
D. during they study satellite pictures
4. Maybe we’ll soon be able to forecast the weather for ________.
A. one day??????????????? B. two days
C. five days????????????? D. seven days or even longer
5. The main（主要的）idea of this passage is that satellites are now used in _________.
A. taking pictures of the atmosphere B. receiving pictures of the atmosphere
C. doing other work in many ways D. weather forecasting
答案
一、
1. class 2. with 3. making 4. prevent 5. fact
6. Don’t 7. ones 8. decide 9. lead 10. close
二、
1.either 2.weight 3.protecting 4. because 5.often
三、
1-5 ACBDD
