DE演示站

时间:2018-10-01 11:07  编辑:admin

  1、 用when指伸的状语从句子体即兴时间,说皓壹个举止突发的时分,另壹个举止正终止。如:

  —What were you doing when I came into the classroom? 当我走进教养室的时分你正干什么?

  —I was reading. 我正就学。

  —What was he doing when I came in? 当我出产去的时分他正干什么?

  — He was watching TV.他正看电视。

  2、用when指伸的时间状语从句子也却以体即兴某壹个举止正终止时,另壹个举止忽然突发。如:

  My pen dropped on the ground when I was walking in the park. 当我在公园溜臻的时分我的钢笔掉落在却地上。

  A woman saw it happen when she was walking past. 当阿谁妇女经度过的时分她看到了事情的突发。

  3、用when指伸的时间状语从句子也却以体即兴某壹个举止已突发,另壹个举止曾经完成,曾经完成的主句子的举止用费过去完成时态到来体即兴。如:

  When they arrived at the station, the train had left.当他们顶臻车站的时分,火车曾经瓜分了。

  4、用while衔接的时间状语从句子普畅通用费过去终止时,体即兴正终止某壹个举止时突发了另壹个举止,而主句子日用普经度过去时。如:

  While he was reading, the telephone rang. 当他正就学的时分,电话铃响了。

  While we were boating on the lake, we saw a fish jump out of the water.当我们正湖中划船时,我们瞧见了壹条鱼跳出产了水面。

  剩意:when与while指伸的状语从句子邑却以体即兴正终止某个举止,但while更强大调举止持续了壹段时间。

  5、用while衔接的时间状语从句子还却以体即兴某个举止正终止的同时,另壹个举止也在终止之中。如:

  While he was reading, I was writing. 他在就学,我在写字。

  While Dad was washing his car, Mum was cooking.爸爸在洗车时,妈妈在做米饭。

  I was doing my homework while my father was watching TV. 爸爸在看电视时,我在做干业。

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