2009年自学考试“英语(二)”词形变换技巧

　　The manager told us to be friendly to the visitors as if we _____( meet) them before.

　　had met

　　If only we ______(have) a phone! I'm tired of waiting outside the public phone box.

　　D.in case ， for fear that ， lest 等词后从句的谓语动词为(should) + 原形。

　　He took his umbrella with him lest it _______ (rain.)

　　(should) rain

　　E.在It is (high) time that 从句中谓语动词一般用过去时动词。

　　It's high time that we _______(take) firm measures to protect our environment. took

　　F.时间错综条件句，动词的形式要根据表示的时间调整。

　　如果我们早动身，现在就不会在雨中走了。

　　If we had set out earlier,we wouldn't be walking in the rain.

　　(从句中动作发生在过去，主句中动作发生在现在。)

　　4)动词的非谓语动词形式：

　　A.动词不定式：主要考查动词不定式作定语、宾语、宾语或主语补足语等的用法。还要注意动词不定式的被动式与完成式。

　　不定式作定语：If there is no choice,there is no decision ______(make) to be made

　　不定式作宾语： Robots , already taking over human tasks in the automotive field, are beginning ________(see) . to be seen