Unit 4 Topic 1 When was it invented Section D 同步练习

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Unit 1 Topic 1
Section D 同步练习
一. 用方框中所给的词填空
man-made, explorer, exploring, system, mark
1. An is such a person who travels to make discoveries in the forests, mountains, under the sea, and in space etc.
2. I’ve put a on the map where the thieves may be hiding.
3. The earth is one of planets in solar .
4. satellites move around the earth just like a small planet.
5. Scientists are the outer space now.
二. 单项选择
( ) 1. The police can your easily by GPS, if you are using the cellphone.
A. find; place B. find out; position
C. discover; office D. look at; city
( ) 2. Our parents can do anything for us we make achievements in our study.
A. as well as B. as far as C. as long as D. as often as
( ) 3. GPS has finding out our position and studying the shape of the earth.
A. used to B. be used to C. been used to D. been used for
( ) 4. People in the past used stars guiding marks.
A.by B. of C. to D. as
( ) 5. there were six blind men. They lived together, quarrelling all the days.
A. Ago B. Before C. Long ago D. Before long
三. 完形填空
The computer is a very wonderful machine. It is a very 1 today. It seems that we can not live or work without it. Computers 2 in many ways---in offices, in factories, in big shops, at schools, and even at home. 3 The computer, people are living a better life.
The computer is one of the greatest inventions of the 4 century. The first computer was built in America and it was named Eniac. It was not only very 5 , but also quite heavy. It was as big as two rooms!
But the computer is developing very fast. Today they are becoming smaller and smaller, lighter and lighter, and 6 faster and faster. There are many different kinds of computers on the market. You can choose any one you like.
7 The computer can do a lot of things for people, it helps us to learn about the real world. With the computer you can 8 an e-mail just in a few seconds to your friend far away from you, but it will take the post office quite a long time to deliver a 9 to your friend.
Now the computer really gives us a very nice picture about the world of tomorrow. So as a student in the 21st century, we have to work hard and learn how to 10 the
computer very well. Don’t you think so?
( ) 1. A. beautiful B. interesting C. popular D. enjoyable
( ) 2. A. were using B. are used C. use D. used
( ) 3. A. On B. In C. Among D. With
( ) 4. A. 18th B. 19th C. 20th D. 21st
( ) 5. A. useful B. large C. small D. cheap
( ) 6. A. studying B. teaching C. walking D. working
( ) 7. A. With B. As C. Like D. By
( ) 8. A. give B. take C. post D. send
( ) 9. A. letter B. book C. help D. message
( ) 10. A. get B. use C. read D. write
四．补全对话。从下面方框中选择正确的选项补全对话，其中有两项是多余的。
A: What a nice camera! __1___
B: It was invented by Joseph Nicephore Niepee.
A: Oh, I see. ___2___
B: In 1827.
A: What’s this in English? __3___
B: It’s called an English Learning Machine.
A: ___4___
B: It may be made of steel.
A: ____5___
B: It is used for helping us to improve our English.
A.What did it look like? B.Who invented it? C.It looks like a recorder. D.Where was it made? E.When was it invented? F.What is it used for? G.What is it made of ?














同步练习答案
一. 1. explorer 2. mark 3. system 4. Man-made 5. exploring
二. 1. B 2. C 3. D 4. D 5. C
三. 1. C 2. B 3. D 4. C 5. B
6. D 7. B 8. D 9. A 10. B
四．1-5 B E C G F









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