Unit 4 Astronomy: the science of the stars
语法：主语从句(Subject Clause)：位于句首充当主语的从句。
What it was to become was a mystery.
It was not clear whether the solid shape was to last or not.
1. ____ we'll go camping tomorrow depends on the weather.
A. If B. Whether C. That D. Where
2. _____ leaves the room last ought to turn off the lights.
A. Anyone B. The person C. Whoever D. Who
3. ___ Lili will get better soon is ___ her mother is worrying about now.
A. What ; what B. Whether ; what C. If ; that D. What ; that
4. The reason why he was late is ___ he got up too late.
A. that B. because C. as D. for
5. It's a question ____ we shall take the entrance examinations.
A. that B. whom C. which D. where
6. The girl looked ___ she was worrying about her sick mother.
A. whether B. that C. even if D. as if
7. ____ he always serves the people very well is known .
A. What B. That C. Which D. Who
8. ___ Mary can come to the meeting is unknown.
A. Whether B. If C. That D. Which
9. I want to know ___ the leather coat belongs to .
A. who B. which C. that D. whom
10. —___ will get the first prize? —I'm sure , Li Hua.
A. Who do you think B. You think who
C. Do you think who D. Whom do you think
二、改错
1. I am sure if you are a student. ____________
2. I spotted the screamed pilot immediately I saw him. ____________
3. It is suggested that the experiment will be made under low temperature. ________
4. He will join us or not is still not decided. _____________
5. The fact you have passed the exam is very clear. _____________
6. When I could go there hasn’t decided till now. _____________
三、翻译
1. _________________________________________（太空旅行所需的）is careful preparations.
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 say.
1-5 BCBAD 6-10 DBADA
1. if --- that 2. screamed --- screaming 3. will---should
4. Whether he 5. fact that 6. hasn’t been
( 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 )
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