Unit 4 Topic 1 When was it invented Section D 课件+练习+音视频

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 ... ...