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[中国] 2020中考英语复习资料:不定式

  下面整理了《2020中考英语复习资料:不定式》,供同学们参考。更多中考英语的相关内容也可关注下北京新东方的中考英语课程,相信可以帮助到大家。

  1.定义:具有名词、形容词及副词性质并具有时态、语态变化。

  2.形式:(以do为例)

  主动语态 被动语态

  一般时 to doto be done

  进行时 to bedoing

  完成时 tohave done to have been done

  完成进行时 tohave been doing

  3.用法:

  (1)用作主语:

  To speakgood English is not easy.

  or: It is not easy to speak good English.

  (采用形式主语 it 以避免头重脚轻)

  It took mean hour to do the work.

  (2)用作宾语:

  Shedecided to take the examination.

  I hope tomeet him soon.

  (3)宾语补足语:

  They expectedus to help them.

  He wantshis son to study hard.

  金牌重点:

  不定式作宾补,如谓语动词是感官动词,使役性动词(see, hear, notice, watch, make, have, let...),则不定式符号“to”须省略,但在被动语态中不能省。

  I heardthem sing in the classroom.

  I made herclean the room.

  The girlis heard to sing an English song.

  (4)用作表语:

  To teachis to learn.

  His job isto sell cars.

  (5)用作状语,表示目的,结果:

  We come toschool to study English.(目的)

  = in orderto

  I hurriedto the store, only to find it closed.(结果)

  (6)定语:不定式短语作定语须位于名词之后。

  He askedfor a piece of paper to write it on.

  = to writeit on the piece of paper.

  The poorman has no house to live in.

  = to livein the house.

  Have youanything to do?

  = to doanything

  4.不定式的时态意义:

  She seemsto dance very well.(现在情况)

  She seemsto be dancing in the dancing hall.(正在进行)

  She seemsto have danced well.(过去情况)

  Has washappy to have been staying with his uncle.(动作持续一段时间)

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