as与while区别

2025-02-14 01:38:04
推荐回答(2个)
回答1:

while 后面接延续性行为,但这个动作肯定和主句动作时间不一样长。如:he was talking to me while he was watching the TV。应该说“看电视”比“谈话”时间长。而as通常两个动作一直相随,很可能时间相同。如:he was thinking of a question as watching the TV。这两个动作就是一直相随的。
as意为“一边……一边……”或“与……同时”,重在表示动作同时发生、伴随进行。while只指“时间段”,不指“时间点”,从句的动词只限于持续性动词。
1 从句表示"随时间推移"连词能用as,不用while。
As the day went on, the weather got worse.
日子一天天过去,天气越变越坏。
2 as引导短暂性动作的动词。
Just as I stopped my car, a man came up to me.

回答2:

as和when、while的区别