沪教版英语八年级下册第三单元8B Unit3 more practice习题含答案

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8B Unit3 more practice习题含答案

一. 单项选择

1. Ever Saturday, Wang Weifang and his friends _____ a play in a small town near Xi’an.

A. put out B. put off C. put on D. put down 2. Shadow puppet are ______ hard leather.

A. made into B. made of C. made from D. made up

3.Wang Weifang and his friends do the ______ of the different characters. A. voices B. sounds C. noise D. shout

4. Now with TV and films, shadow puppet plays are not ______ before. A. more popular as B. as easily as C. so easier as D. as popular as 5. They often work very hard for little money, ______they do not mind. A. and B. but C. so D. or 二. 阅读回答

When Isaac Newton(1642-1727)was young, everyone thought that there were two colors in light, black and white.Newton liked to ask questions. He asked,"Is it true that there are only two colors?”

At the age of 24, he said,"I don't think that it is true. I think that all colors together make up white light.”He had to prove his idea.

How could he prove it? He said,"When white light goes through a glass prism(棱镜），it will become different colors. I think that these different colors will become white again when they go through another glass prism together.”

He decided to do a test.What did he learn? First,he learnt that white light is made up of at least seven different colors.Second, he learnt that these colors together form white light.

Newton said,"I'll tell people about my test."Only a few people said,"I understand you!”Even fewer people said,"I agree with you!"However, today everyone knows Newton was right.

6.Did Newton think that there were only two colors?

7.What was Newton's idea about white light?

8.How did he prove his idea?

9.How many colors is the white light made up of according to the test?

10.Did most people agree or disagree with Newton?


答案：

1-5 CBADB 6.No.

7.All colors together made up white light. 8.By a test.

9.At least seven different colors.

10.Most people disagreed with Newton.

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