内容正文:
Unit 7 The unknown world 单元综合练习
一、单项选择
1.Wendy was very ________ because she fought with her best friend yesterday.
A.serious B.terrible C.unhappy D.active
2.—Who ________ the steam engine?
—I don’t know.
A.invented B.invent C.discovered D.discover
3._____ you know English is important, you should learn it well.
A.Since B.For C.Because of D.Though
4.—Did you hear the cries _______ the boy?
—Yes, when I arrived there, I found the boy looking at the snake _______ fear.
A.from, in B.at, with C.from, with D.in, in
5.________ you can fly, why not fly high?
A.Although B.Unless C.As soon as D.Since
6.—Do you know who ________ the tea?
—I’ve no idea. But I know it has been very popular since it appeared in England.
A.brought B.discovered C.made D.started
7.–– I’m worried about the air.
–– ________ . We should do something to improve the environment.
A.Good idea B.Never mind
C.Me, too D.No problem
8.Do you mind my turning on the TV?
A.No, please don’t turn on the TV. B.Yes, of course.
C.Of course not. Go ahead. D.Certainly.
9.—Oh, I got terrible grades again!
—But ________ you tried your best this time.
A.hardly ever B.because of C.even though D.at least
10.I am going to ______ you on Sunday and go bike riding.
A.catch B.accept
C.refuse D.delete
二、完形填空
If you are dreaming of becoming an astronaut after you grow up, get started now! An astronaut needs a strong body and mind. Shenzhou XIII astronauts are able to live upside-down (倒立). They do this not just during sleep, but also when eating and going to the toilet. Before they ____11____ space, they had lots of practice. Each upside-down training time lasted for 20 days.
Chinese astronauts aren’t just spaceship ____12____ but also machine repairers(修理工)and scientists. They have to know every part of the spaceship and how it ____13____. If something goes wrong, they’ve got to know ____14____ repair it. Also they do scientific experiments in space.
Shenzhou XIII astronauts know how to live in ____15____. They took a knife, a