探索尚未知道的东西
一、请根据各句上下文的意义，选择正确的单词填入空白处。
第一组：astronomy, system, religion, theory, globe, violent, atmosphere, unlike, fundamental, harmful, chain, multiply
1 Drinking too much alcohol is ________ to people’s health.
2 When I entered the meeting room I sensed the _________ was unusual and everyone kept silent. 3 There is still a lot that scientists don’t know or explain in the field of _________. 4 In the Chinese education _________ exams are laid in the most important place. 5 Children should not be allowed to watch any ________ movie.
6 _________ his brother, who is lazy, Tom is always active in everything.
7 According to the __________ of relativity, nothing can travel faster than light. 8 Hard work is __________ to one’s success.
9 The Great Wall of China attracts tourists from every corner of the __________. 10 The law states that everyone has the right to practise their own __________. 11 You get 8 by __________ 2 and 4.
12 Wal Mart has a number of __________stores across the world.
第二组：oxygen, exist, puzzle, biology, gravity, satellite, gentle, physicist, climate, crash, float, mass 13 Do you know about Newton’s law of ________? 14 A plastic bag was seen ________ in the water.
15 The scientists say that dinosaurs _________ millions of years ago but then died out suddenly. 16 When you are on the moon your ________ will be less than on the earth. 17 Man cannot live without ________.
18 A biologist is a person who studies _________.
19 In the past years the _________ of the earth has changed a lot.
20 Hawking(霍金) is considered the greatest __________ after Newton and Einstein 21 What __________ me most is why he left the country without telling anyone. 22 A truck went out of control and __________ into the back of a bus. 23 He is a quiet and __________ man, and all of us like him so much. 24 As you know, the moon is a __________ of the earth.
二、把下列短语填入每个句子的空白处（注意所填短语的形式变化）：
in time prevent…from lay eggs give birth to in one’s turn cheer up now that break out block out watch out 1 SARS _________ in the mainland of China in the year 2003. 2 ________ everyone is here, let’s start work. 3 If you keep on, you will succeed __________.
4 Nothing can ________ him ________ carrying out the survey.
5 The hens have _________ more than they did last month since we changed the method of feeding.
6 Why are you so upset? Come on, _________.
7 Congratulations to Mary! She __________ a lovely baby last night. 8 We put a tarpaulin(油布) across the window to _________ the sunlight. 9 __________ for cars when you get out.
10 Then, I will, ___________ act as weekly monitor of my class.
探索尚未知道的东西
Unit 4 一第一组：1 harmful 2 atmosphere 3 astronomy 4 system 5 violent 6 Unlike 7 theory 8 fundamental 9 globe 10 religion 11 multiplying 12 chain
第二组：13 gravity 14 floating 15 existed 16 mass 17 oxygen 18 biology 19 climate 20 physicist 21 puzzles 22 crashed 23 gentle 24 satellite
二 1 broke out 2 Now that 3 in time 4 prevent…from 5 laid eggs 6 cheer up 7 gave birth to 8 block out 9 Watch out 10 in my turn
