重点词汇

When there is a lack of food，there is hunger.

当粮食缺乏时，就会有饥饿发生。

(lack n．& vt.缺乏

※(a) lack of缺少......

for/through lack of因缺少......

lack (for) sth.缺少某物

※lacking adj.缺乏的；不足的；没有的

be lacking in在......方面缺乏

(1)More and more high­rise buildings have been built in big cities for/through lack of space(因为缺乏空间)．

(2)Though lacking money(缺钱)，his parents managed to send him to a university.

(3)A new study shows elderly men who suffer from a lack of(缺乏) deep sleep are nearly twice as likely to develop high blood pressure.

(4)She failed in the interview because she is lacking in/lacks(缺乏) work experience.

[单项填空]

(5) real face­to­face communication nowadays，we communicate by telephone，cellphone and through the Internet more and more，instead.

A．Lacked B．To lack

C．Lacking D．Having been lacked

答案　C

解析　句意为：如今由于缺乏真实的面对面的交流，我们越来越多地通过电话、手机以及网络来交流。lack本身可作及物动词，分析题干可知其与句子主语we之间存在着逻辑上的主动关系，故用现在分词作原因状语。