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while在句中的用法等重点句型详解

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while在句中的用法等重点句型详解知识点包括while在句中的用法、as 引导的非限制性定语从句、过去分词短语作状语等部分,有关while在句中的用法等重点句型详解的详情如下:

while在句中的用法

Imagine having the opportunity to sing together with hundreds of other people while you are at home alone.

想象一下,当你一个人在家的时候,有机会和几百个人一起唱歌。

(1)句式分析:这是一个主从复合句。句中while you are at home alone是while引导的时间状语从句,前面是主句,也是一个祈使句。

(2)while conj.在句中意为“当……时候”。

Would you look after the children while I do the shopping?

我买东西的时候,你能不能照看一下孩子?

[思维拓展]

(1)while conj.然而

I was never very neat,while my roommate Kate was extremely organized.

我从来不是一个很爱整洁的人,而我的室友凯特却极有条理。

(2)while conj.虽然;尽管

While online shopping has changed our life,not all of its effects have been positive.

尽管网上购物已经改变了我的生活,但并非它所有的影响都是正面的。

(3)while conj.只要

While there's life there's hope.

只要活着就有希望。

as 引导的非限制性定语从句

As one virtual choir member saidMusic helps me to...forget my problems.With musicI become someone else.

正如一位虚拟合唱团的成员所说:音乐帮助我……忘记我的问题。有了音乐,我变成了另一个人。

(1)句式分析:这是主从复合句。As one virtual choir member said是as引导的非限制性定语从句,其中as为关系代词,指代整个主句的内容。

(2)as 引导的非限制性定语从句既可放在主句之前,也可放在主句之后,as指代整个主句的内容。常见的此类句型:

All that glitters is not gold,as we all know.

人人皆知,发光的并非全是金子。

He is late for class again,as is often the case.

他上课又迟到了,这是常有的事。

As I expected,he got the first place again in this mid­term examination.

正如我所预料的那样,他在这次期中考试中又获得了第一名。

注意:as作关系代词,引导非限制性定语从句时,指代整个主句的内容,从句可以位于先行词(主句)之前、之中、之后,as可译成“正如,正像”。which作关系代词引导非限制性定语从句时也可指代整个主句的内容,但从句不能位于先行词(主句)之前,which可译成“这,那”。

过去分词短语作状语

Moved by this musiche saidIt was like seeing color for the first time.

他被这段音乐打动了,他说:那种(兴奋的)感觉就如同是第一次看见色彩一样。

(1)句式分析:这是一个主从复合句。Moved by this music是过去分词短语在句中作状语,he是主语,said是谓语,It was like seeing color for the first time是宾语从句,作动词said的宾语。

(2)Moved by this music为过去分词短语作状语,用来描述主语的状态。

Buried in his homework, he didn't notice it was 10 o'clock.

忙于他的作业,他没注意到已经10点了。

Devoted to his research, he has no time to watch TV, so he doesn't know what has happened to Japan.

致力于他的研究,他没时间看电视,因此他不知道日本发生了什么事。

注意:有些动词或动词短语常用过去分词形式作状语,用来描述主语的状态。这些词有excite,tire,frighten,absorb,surprise,shock,satisfy,exhaust 等。

(3)for the first time 第一次

When I met him for the first time, he was making a speech.

我第一次见他时,他正在演讲。

When I went to Qingdao last year, I saw the sea for the first time in my life.

去年我去了青岛,那是我第一次看到大海。

[思维拓展]

(1)every time/each time引导时间状语从句,意为“每当……的时候”。

(2)the first time/(the) next time/the last time引导时间状语从句,意为“第一次/下次/上次(最后一次)……时”。

(3)the minute/moment/instant引导时间状语从句,意为“一……就……”。

(4)immediately/instantly/directly引导时间状语从句,意为“一……就……”。

[易混辨析]

the first time用作连词,引导时间状语从句,意为“第一次……时”;

for the first time是介词短语,只能用作状语,意为“第一次”。

I knew we would be good friends the first time I met her.

第一次见到她,我就知道我们会成为好朋友。

最后编辑:2021-03-20 14:24:00

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