1、Unit 4 Astronomy：the science of the stars（2）课时训练1. Complete the following sentences with the proper form of the given words. development, disappoint, explode, float, force, harmful, publish, solid, spread, surface, telescope, violent 1. The butterfly _ its wings and moved them slowly up and down . 2
2、. That he failed the college entrance examination _his parents very much . 3. She found something unusual _on the _of the river, which quite frightened her. 4. The famous writer _a lot of popular novels in that _firm. 5. With the _of our countrys economy, peoples living standard has been greatly rai
3、sed. 6. Now that its so warm, we can see fishes swimming on the _of the pool. 7. The _ of gravity makes things fall to earth. 8. With a _ kick, the robber broke into the old mans house. 9. Nothing can separate the two, because they have a _friendship foundation. 10. During World War II, two atomic b
4、ombs _in Japan, killing a large number of people. ( 1. spread 2.disappointed 3. floating, surface 4. published, publishing 5.development 6.surface 7.force 8. violent 9. solid 10. exploded )2. Complete the following sentences with the proper translations. 1. When SARS _（爆发）, fear spread out quickly a
5、ll over the country. 2. Try harder, and you can succeed _ （最终）. 3. Measures should be taken to _（阻止）the paper factory polluting the river . 4. _ （既然）he has admitted hes wrong, we may as well forgive him. 5. It _（取决于）the efforts of the government and those companies whether the environmental problem
6、can be solved. 6. They tried their best to _ （使-高兴 ）those unfortunate people after the earthquake. (1. broke out 2.in time 3. prevent 4. Now that 5.depends on 6.cheer up )3. Translate the Chinese into English to complete the whole sentence by using the Subject Clause 1. _（太空旅行所需的）is careful preparat
7、ions. 2. It will soon be announced _（谁是胜利者） 3. _（杨利 伟从太空中安然着陆地球） made all Chinese exited and cheerful. 4. It is still unknown _（杨利 伟 是否将再被送到太空去） 5._（宇航员在太空中如何吃饭、睡觉和行走） is very strange and interesting. 6. _（为什么张教授昨天缺席会议）remains a secret. 7.It is know n to us _（生命起源于何处）. 8. _(何时战争才会从世上消失) is hard to s
8、ay. ( Keys: 1.What is needed for the space trip 2.who will be the winner 3. That Yang Liwei landed on the earth safe from space 4. Whether Yang Liwei will be sent into space once again 5. How astronauts eat, sleep and walk in space 6.Why Professor Zhang was not present at the meeting yesterday 7. Where life developed 8. When war will disappear from the world )
