Unit 4 Making the news Grammar课时作业

Ⅰ.单项填空

1．-Why haven't you finished your work?

-The computer system ________ suddenly when I was searching for information on the Internet.

A．broke down B．broke out

C．broke up D．broke in

答案　A

解析　答语句意为：当我在网上搜索信息的时候，电脑系统突然出毛病了。break down发生故障，符合句意。

A．worth of B．sum of

C．value for D．profit for

答案　A

解析　worth of值......价值的，形容词短语作后置定语。此处指所售物品的总价格，而非价值，不可误选value。

3．I have to remind myself that some birds are not meant to be caged.Their feathers are just too bright.And when they fly away，the part of you ________ knows it was an offence to lock them up does feel happy.

A．that B．who

C．where D．when

答案　A

解析　考查定语从句。名词part是先行词，定语从句________ knows it was an offence to lock them up缺少主语，故需用关系代词that。

4．China may as well keep its growth rate above 7 percent.________，the rate may be set between 6 to 7 percent，for the sake of a healthy environment.

A．Differently B．Alternatively

C．Accordingly D．Conversely

答案　B