什么是主过从过,什么叫过左什么叫过右

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When 的状语风采。

英语语法 (No. 80 [送自己一朵花])个人原创

状语从句之三

1,[微风]when还有别的与众不同的表现吗?

有啊,但要先练习一些题巩固上节课 when 的用法 "当........时候" 。

明天就讲它的独一无二的句式

2 ,[微风]有关 when 的用法例题。

(1)When my father arrived home, We were making dumplings.

(当我爸爸到家时,我们正在包饺子。when 从句过去时,瞬间动作,主句过去进行时,延续动作。时态在同一范畴。)

(2) I will go for a walk with Jack when he finishies writing his report.

(当Jack 写完报告,我将和他去散步。when从句中用现在时,表达将来时的意义,瞬间动作。主将从现,主从句时态一致,主句也是瞬间动词。)

(3)My brother left home when=while we were having dinner.

(when从句中进行时,延续动作,主句中过去时,瞬间动作,主从句时态一致。此句中的when可换成while.)

(4) My mother was cooking while my father was washing clothes.

(爸爸和妈妈同时在做事,此句中,只用while,主从句都是延续动词,都在进行中,这是 while 的专属。)

(5)When I walked past the office, I saw Mr Black sitting by the window.

(我经过办公室的时候,看见Black 先生坐在窗边。主过从过,时态一致。主句瞬间动作,从句延续动作。)

(6) I sang the song "Little Star " as I walked along the river.

(我一边沿着河边走 一边唱小星星。主过从过,主从句的动作是同一人发出,并且是两个延续动作,这时只用as ,as 意思是,一边......一边,这是as引出时间状语从句的专属。)

(7) Jenny looked after my dog when =while I was away from home.

(when从句中状态动词,延续。此句中,可换成while. 主句中延续动作。)

(8) He said he would go to the station when he had watered the flowers.

(when 从句中过去完成时,延续动作,强调动作完成后,再做主句的事情,主句瞬间动作,时态在同一范畴。)

(9) I am going to carry some water when I have finished planting these trees.

(when从句中用完成时强调把动作完成后,从句瞬间动作。用现在时表达将要做。主从句在同一时态范畴。主句延续动作。)

从这些例句中,出现了两个专属,(1) while 专属,when不触碰。

主从句都是延续动作的进行时,不用when.

(2) as 专属,when不触碰。

两个延续动作是同一个主语,主从句不是进行时态,就只用as,表示一边做......,一边做.......。不用when和while.

除此之外 ,when出入自由,哪里都可以做事。有疑问,问老师 ,讨论解答会更清楚。

3,[微风]思考题,如果说我正在散步,突然遇到了一位老朋友,我喜出望外的样子,该怎样表达呢?

微课堂 明天继续

期待你的答案啊

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