since 与while的用法及区别是什么?

cdgj 1年前他留下的回答 已收到1个回答

bngfc 网友

该名网友总共回答了28个问题，此问答他的回答如下：采纳率：89.3%

since
adv.此后; 之前,以前; 从那时到现在
prep.此后; 之前,以前; 从那时到现在#自...以来,从...至今#自...以来,从...至今; 因为,由于; 既然
conj.自...以来,从...至今; 因为,由于; 既然
She moved to London last May and has since got a job on a newspaper.
她去年五月到伦敦,此後一直在报社工作.
It was the first time I'd won since I'd learnt to play chess.
自从我学会下国际象棋以来,这是我第一次赢.
How long is it since we visited your mother?
自从我们看望你母亲以来到现在有多长时间了?
since
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DJ:[]
ad.(常用于现在完成时或过去完成时)
1.此后;从那时到现在
She left school three years ago and has worked as a nurse ever since.
她三年前他留下的回答毕业,从那时起便一直当护士.
2.之前,以前
prep.
1.(常用于现在完成时或过去完成时)自...以来,从...至今
I haven't heard from him since last year.
我自去年以来未曾收到过他的信.
conj.
1.(常用于现在完成时或过去完成时)自...以来,从...至今
It's been ten years since they married.
他们结婚到现在已经十年了.
She has been living a hard life since her husband died.
她自从丈夫死后,一直过着艰苦的生活.
2.既然;因为,由于
He must have taken the book since it isn't here.
他一定是把书拿走了,因为书已不在这里了.
Since it is so hot,let's go swimming.
既然天气这么热,我们去游泳吧.
while
n.一会儿,时间
v.消磨
prep.一会儿,时间#消磨#当...的时候; 虽然#直到
conj.当...的时候; 虽然
while [(h)wail]
conj.当...的时候
n.&a.一会儿
v.消磨
例句:
I lived in a hostel while I was a student.
我求学期间住在青年招待所里.
She worked in a bank for a while before studying law.
她学法律之前在银行工作过一段时间.
While Mary was writing a letter,the children were playing outside.
玛丽写信时,孩子们在外面玩耍.
n.
1.一会儿,一段时间[S]
I'll be back in a while.
我一会儿就回来.
conj.
1.当...的时候,和...同时
She listened closely while he read the letter.
他读信时,她听得很仔细.
I'll take care of your children while you are away.
你不在时我会照顾你的孩子的.
We must strike while the iron is hot.
我们必须趁热打铁.
2.而,然而
I like tea while she likes coffee.
我喜欢喝茶,而她喜欢喝咖啡.
3.虽然,尽管
While I like the color of the hat,I do not like its shape.
虽然我喜欢这顶帽子的颜色,但我不喜欢它的形状.
4.只要
vt.
1.消磨(时光),轻松地度过[(+away)]
He whiled away the whole afternoon watching TV.
他看电视消磨了一个下午.

1年前他留下的回答

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