内容正文:
Unit 2 We have not found life on any other planets yet.
◎基础训练
一、根据语境或提示,完成填空。
1. Nothing is impossible(不可能的) if you keep working hard at it.
2. Look! A group of ants are eating my food.
3. Light(光) travels much faster than sound.
4. We need a quiet environment(环境) to study for the coming exam.
5. I suggest you use WeChat to communicate(交流).
6. It took them more than two billion(十亿) dollars to build the palace.
7. Jack is short, but he jumps farther(far) than other students.
8. The maths problem is so difficult that none(没有一个) of us can work it out.
9. We will have lunch at 12:00. After that, we will have a little sleep.
10. We don't know how many stars there are in the universe(宇宙).
二、单项填空。
(D)1. moon goes around earth.
A. The; an B. A; the
C. An; a D. The; the
(C)2. Mars a planet and it around the sun.
A. is; go B. was; went
C. is; goes D. are; go
(A)3. Although I live , I never feel .
A. alone; lonely B. lonely; alone
C. alone; alone D. lonely; lonely
(C)4. It is said that the disease has killed people worldwide.
A. two hundreds B. two hundreds of
C. hundreds of D. hundred of
(B)5. Why has no one communicated us?
A. on B. with
C. for D. at
◎提能训练
三、阅读理解。
B
Every time I look at the moon, I wish I could go there. Do you wish you could fly to the moon in a spaceship one day?
For hundreds of years, men have wanted to travel to the moon. When they looked at the moon, they asked many questions. Was the moon hot or cold? Were there any plants or other living things there? They asked many, many other questions. Some people said there were living plants on the moon. Others said nothing could live there because there was no air or water on the moon.
We know much about the moon now. Scientists have studied the moon for many years and have found out many facts. Not long ago spaceships with men in them flew to the moon.
What do we know about the moon? We find that the moon is much smaller than the earth. It is about one quart