as的6种用法总结及典型句子 as用法( 七 )


He shouted aloud as her ran along 。他一边往前跑,一边高声地呼喊 。
I was startled as he opened the door 。他一开门,我吓了一跳 。
4、as作连词,相当于when 。
As a little boy/When he was a little boy,he began to learn to play piano 。他小时候就开始学弹钢琴 。
as的六种用法1、as做连词,固定搭配as……as,意思是“和……一样”
例句:My sister is as tall as me.我姐姐和我一样高 。
2、as做连词,引导时间状语从句,意思是“当……的时候”
例句:My mother was cooking fish as I arrived home.当我到家的时候,我妈妈正在做鱼 。
3、as做连词,引导原因状语从句,意思是“因为”
例句:As rain has fallen, the air is cooler. 因为下过雨,所以空气比较凉爽 。
4、as做连词,引导让步状语从句,意思是“虽然,尽管”
5、as做关系代词,引导定语从句
6、as做介词,意思是“作为”

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