在介词后一般用动名词.下面是一些含介词的固定句式(其中有的介词有时会被省略):prevent / stop / keep sb. / sth. from doing ,spend / waste time or money in doing (在做-方面花费 / 浪费时间或金钱),How / What about doing sth. ,have some difficulty / trouble in doing ,have a hard time in doing sth. ; there is no sense in doing(做-是没有理由 / 道理的),thank (excuse / admire / praise / blame / scold / punish) sb. for doing sth. (因做某事而感谢 / 羡慕 / 表扬 / 责备某人)等.如:1. Having been ill in bed for nearly a month, he had a hard time the exam. A. pass B. to pass C. passed D. passing [分析]答案选D.因为have a hard time (in) doing sth. 在做某事方面有困难. 【查看更多】
