完型填空；阅读短文，从各小题所给的A、B、C、D四个选项中选出最佳*。Whatisthesky?Wherei...

来源：语文精选馆 9.55K

问题详情：

完型填空；阅读短文，从各小题所给的A、B、C、D四个选项中选出最佳*。

What is the sky? Where is it? How high is it? What lives above it? These questions are difficult 1 ， 2 they?

Is the sky blue?

The sky 3 no color. We know that there is air around 4 world. When planes fly, they need air 5 their wings. Planes can not fly very high because when they go higher, the air gets 6 ．If we go up about 1,200 kilometers 7 the earth, we find there is 8 air of all.

Maybe we can answer 9 of our questions now. The sky is space. 10 space there is only the moon and all the stars

( ) 1．A. answering B. answers C. answer D. to answer

( ) 2．A. isn't B. are C. aren't D. don't

( ) 3．A. is B. has C. are D. have

( ) 4. A. the B. an C. a D. 不填

( ) 5．A. lift B. lifts C. lifting D. to lift

( ) 6．A. thin B. thinner C. thinnest D. thiner

( ) 7. A. to B. near C. from D. away

( ) 8. A. no B. not C. no any D. any

( ) 9. A. both B. all C. some D. any

( )10．A. On B. At C. Of D. In

【回答】