Unit 4 Natural disasters第 6 课时 巩固与提升一、完形填空。 阅读下面短文，从短文后所给的 A、B、C 三个选项中选出能填入相应空白处的最佳选项。 We cannot stop earthquakes, but we can do things to make sure they do not destroy the whole cities. First, it is not a 1 idea to build houses along the lines where 2 of the earth’s plates join together. Second, if you think there 3 be an earthquake, it is better to build houses on rock, not on 4 . Third, you must make the houses as 5 as possible. Weak buildings will fall down in an earthquake, but strong ones may 6 . Scientists are 7 that one day an even bigger earthquake will hit the part around San Francisco. They call it“The big one”. But people today are still building more 8 . The population in and around San Francisco now is ten times more than 9 was in 1906．This means that 10 there is another earthquake, a great many houses and buildings will be destroyed. （ ）1．A．bad B．good C．new （ ）2．A．one B．most C．two （ ）3．A．may B．should C．can’t （ ）4．A．sea B．land C．water （ ）5．A．high B．big C．strong （ ）6．A．stay up B．keep up C．set up （ ）7．A．sorry B．afraid C．excited （ ）8．A．walls B．cities C．houses （ ）9．A．this B．that C．it （ ）10．A．before B．if C．until B C A B C B B C C B 二、阅读理解。 阅读下列短文，从下面每小题的 A、B、C、D 四个选项中选出最佳选项。 A Everybody hates rats. But rats may soon be man’s new good friends. What happens after an earthquake? We send in rescue dogs. Why? Because they can smell people. Dogs save lives. They help rescuers to find living people. But dogs are big and they can’t get into small spaces. So now a new research project is using a smaller animal to save lives: the rat. ...
