钓鱼扑克牌图片大全:小升初英语语法:主动与被动

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 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。

  1)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。
  feel, hear, help, listen to, look at, mak英语e, observe, see, notice, watch
  The teacher made me go out of the classroom。
  --> I was made to go out of the classroom (by the teacher)。
  We saw him play football on the playground。
  --> He was seen to play football on the playground。

  2)情态动词+ be +过去分词,构成被动语态。
  Coal can be used to produce electricity for agriculture and industry。