语态有两种:主动语态和被动语态。主语是动作的发出者为主动语态;主语是动作的接受者为被动语态。
被动语态1) 被动语态最基本的句型结构是: be +及物动词过去分词2) 被动语态中的谓语动词一定要是及物动词因为被动句中的主语是动作的承受者,某些短语动词如look after, thinkof, take care of, work out, laugh at等,也可用于被动语态。The children were taken good care of by her.【注意】短语动词中的介词或副词变成被动语态时不可遗漏。
主动语态变为被动语态要加“to”的情况；若宾语补足语是不带to 的不定式,变为被动语态时,该不定式前要加"to"。此类动词为感官动词,如:feel, hear, help, listen to, look at, make, observe, see, notice, watch等。例如:The teacher made me go out of the classroom.I was made to go out of the classroom (by the teacher).
主动形式表示被动意义；如wash, clean, look, cut, sell, read, wear, feel, draw, write, sell等动词虽然用做主动形式却表示被动的意义。例如:The food tastes good.
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