内容正文:
Unit 6 Survival 检测卷
一、完形填空
Earthquakes are common; thousands of them happen each day. But most are too 1 to feel. During a big earthquake, there is often a great noise first. Then the earth 2 terribly and many houses fall down. Railway tracks break and trains go 3 lines; a great many factories are 4 ; thousands of deaths are caused, and many more lose homes. 5 the great damage and deaths caused by the earthquake 6 , other disasters such as fires often 7 . More buildings are destroyed and more deaths caused.
Man knows the 8 of a possible earthquake, and for centuries man has been making researches on earthquakes. More than 2, 000 years ago, 9 , a Chinese scientist named Zhang Heng, 10 a machine which could find out from which direction the seismic waves had come, and this machine is still 11 by scientists today. Now we know much more about earthquakes and 12 they happen, but we still cannot 13 exactly when and where an earthquake will happen, and cannot prevent it from happening. So earthquakes are among the 14 disasters in the world.
No one can stop natural earthquakes. 15 , scientists can help stop earthquakes destroying whole cities and causing too many deaths.
1.A.extreme B.weak C.frightening D.frequent
2.A.moves B.shakes C.jumps D.breaks
3.A.off B.on C.into D.behind
4.A.burst B.struck C.destroyed D.buried
5.A.Except B.Besides C.Instead of D.Because of
6.A.lonely B.later C.themselves D.itself
7.A.follow B.copy C.come D.enter
8.A.answers B.questions C.dangers D.frights
9.A.as a result B.in fact C.for example D.as well
10.A.invented B.discovered C.found D.bought
11.A.improved B.repaired C.protected D.used
12.A.where B.when C.what D.why
13.A.persuade B.tell C.express D.point
14.A.worst B.best C.most D.fastest
15.A.However B.But C.And D.So
二、阅读理解
Gardeners who use pesticides are contributing to the decline of British songbirds, a study suggests. Scientists have urge