()主动语态中的宾语加带有宾语补足语时,改为被动语态时,就将宾语改为主语,将宾补保留在原处,而成为被动语态句中主语的补足语了。宾补可以有下列几种情况:①宾补为动词不定式,如:They asked her to sing a song. →She was asked to sing a song. 在动词make, see, hear, watch, notice等之后,不定式的to在主动语态里可要省略,而被动语态里不能省,如:Tom was seen to come out of the lab.②宾补为分词,如:They heard them singing at the time.→They were heard singing at that time.③宾补为形容词、副词、名词或介词短语,如:She kept me busy all the morning. →I was kept busy all the morning.
()含有情态动词的动词改为被动语态时是将情态动词后面的动词原形改为被动语态,因其前有情态动词,所以构成被动语态的助动词be就要使用原形,如:They must finish the work before Friday. →The work must be finished before Friday.
()be going to, be to, used to, have to和had better等结构,其作用相当于情态动词或助动词,在改为被动语态时,只需将后面的动词原形改为被动语态即可,如:The are not going to put off the football match. →The football match is not going to be put off.1.get+过去分词表被动
They got married last week.他们上周结婚了。
He fell and got hurt.他摔倒受伤了。
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