11．Every possible means ________ to prevent the air pollution，but the sky is still not clear.

A．is used B．are used

C．have been used D．has been used

答案　D

解析　句意为：已经采取一切可能的手段来防止空气污染，但是天空还是不清澈。根据题意可知应用现在完成时。"every＋单数名词"作主语时，谓语动词用单数形式。

12．-Did you go to the show last night?

-Yeah. Every boy and girl in the area________ invited.

A．were B．have been

C．has been D．was

答案　D

解析　主语是every boy and girl，表示单数概念，故谓语动词用单数，且询问昨晚的情况，有明确的过去时间，所以应选择was。

13．It's a good habit to have your car brakes ________ before a long journey.

A．to check B．checked

C．checking D．check

答案　B

解析　句意为：长途旅行之前检查一下刹车系统是一个很好的习惯。brakes与check之间是逻辑上的被动关系，所以用过去分词作宾语补足语，构成have sth.done结构。

14．In fact，not only Mary and I but also Jane ________ having one exam after another.

A．is tired for B．are tired with

C．is tired of D．are tired of

答案　C

解析　not only...but also...连接的成分作主语时，谓语动词的单复数要根据就近原则来确定，故谓语动词用单数。

15．His uncle made a film_______ _his story in his childhood.

A．based on B．was based on

C．basing on D．to base on

答案　A

解析　based on为过去分词短语，在句中作后置定语修饰a film。

Ⅱ.阅读理解

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