Unit 3 Computers reading课时作业

一、单项填空(共15小题；每小题1分，满分15分)

1.During an exam，it's a good idea to give careful ________ to the questions before writing your answers.

A.consideration B.acquisition

C.explanation D.instruction

答案　A　[句意：在考试中，在写下你的答案之前仔细考虑一下问题是个好主意。根据句意可知，consideration "深思，仔细考虑"符合语境。acquisition "获得"；explanation "解释"；instruction "指导"。]

2.Now there are more parks in the area，the largest of which was created to ________ some of the forests in the north of the state.

A.expand B.multiply

C.preserve D.strengthen

答案　C　[句意：现在这个地区有更多的公园了，而其中最大的公园是为了保护该州北部地区的一些森林而建的。preserve "保护，保留"，符合语境。expand "使扩大，扩展"；multiply "使繁殖"；strengthen "加强"。]

3.Most students think physics sort of challenging for them；________，they tend to opt out and turn to other subjects.

A.in particular B.as such

C.for instance D.in addition

答案　B　[大多数学生认为物理对他们来说有点难；因此，他们往往不选择物理而选择其他学科。根据句意可知，此处应选B。as such本意为"就这一点而论"，在此引申为"因此，所以"。in particular"尤其，特别"；for instance"例如"；in addition"另外"。]

4.When it comes to a global energy revolution，________ has greater potential than flammable ice being mined from underneath the South China Sea.