2009年自學(xué)考試“英語(yǔ)(二)”詞形變換技巧

　　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 等詞后從句的謂語(yǔ)動(dòng)詞為(should) + 原形。

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

　　(should) rain

　　E.在It is (high) time that 從句中謂語(yǔ)動(dòng)詞一般用過(guò)去時(shí)動(dòng)詞。

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

　　F.時(shí)間錯(cuò)綜條件句，動(dòng)詞的形式要根據(jù)表示的時(shí)間調(diào)整。

　　如果我們?cè)鐒?dòng)身，現(xiàn)在就不會(huì)在雨中走了。

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

　　(從句中動(dòng)作發(fā)生在過(guò)去，主句中動(dòng)作發(fā)生在現(xiàn)在。)

　　4)動(dòng)詞的非謂語(yǔ)動(dòng)詞形式：

　　A.動(dòng)詞不定式：主要考查動(dòng)詞不定式作定語(yǔ)、賓語(yǔ)、賓語(yǔ)或主語(yǔ)補(bǔ)足語(yǔ)等的用法。還要注意動(dòng)詞不定式的被動(dòng)式與完成式。

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

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