2018--2019学年人教版必修一unit 1 friendship reading课时作业2
2018--2019学年人教版必修一unit 1 friendship reading课时作业2第1页

Unit 1 friendship reading课时作业

Ⅰ.单项填空(建议用时8′)

  1.The 18th and 19th centuries ________ the widespread use of electricity and the birth of the steam engine.

  A.made   B.proved  

  C.spared   D.witnessed

  解析:句意为:18、19世纪见证了电的广泛传播和蒸汽引擎的诞生。some time witness sth.某时见证某事,所以选择D。

  答案:D

  2.A policeman put some chemicals on the piece of paper,and a line of words ________.

  A.gave up         B.showed up

  C.made up D.stayed up

  解析:考查动词短语辨析。give up放弃;show up出现;make up弥补,化妆,编造;stay up熬夜。句意为:一个警察在纸上放了些化学药品,一行字就出现了。所以选B。

  答案:B

  3.There are some health problems that,when ________ in time,can become bigger ones later on.

  A.not treated B.not being treated

  C.not to be treated D.not having been treated

  解析:句意为:有些健康问题,如果不及时处理,以后会变得更严重。when not treated in time为插入语,在本句中为时间状语从句,把that can become bigger ones later on这个定语从句给隔开了。when引导时间状语从句时,可以出现省略的现象,但必须满足两个条件:首先,时间状语从句中的主语必须和主句主语一致;其次,从句中含有be动词。本句中补充完整的状语从句为:when they are not treated in time,其他选项形式不对。故答案为A项。

  答案:A

  4.________ on this report,the English government decided to ask Captain James Cook to go and look for this new continent.

  A.Having based B.Basing

  C.Based D.To be based

解析:考查非谓语动词。句意为:基于这份报告,英国政府决定让詹姆斯库克船长去