while后面一定要接doing吗
如果while后面要接动词,则必须用doing,如果while后面接句子或短语,则不用。
while的用法
1、作名词用,表示“一会儿”。
例句:They walked back together, talking all the while (= all the time) .
他们一起边走边聊着回去的。
2、作连词,引导状语从句。
例句:While my heart is willing, my flesh is weak.
心有余而力不足。
3、作并列连词用,意为“然而”,表对比关系。而but表转折。
例句:The son was having a good meal at home, while the parents were working in the fields.
儿子在家吃好饭而父母却在田里辛勤劳作。
扩展资料
while和when的区别
1、while只能表示某一段时间,when表示某一点时间
例如:
While Jim was mending his bike, Lin Tao came to see him.
Sunday is the only day when I can relax.
星期日是我唯一可以休息的日子。
2、while引导的时间状语从句多用进行时态,而when引导的时间状语从句多用一般时态。
例如:
While they were talking , the bell rang.
正在他们谈话的时候,上课铃响了。
I was doing my homework when my mother came back home yesterday evening.
昨天晚上妈妈回家的时候,我正在做家庭作。
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不一定。
1、表示两件事同时发生)当…的时候,在…时
Racing was halted for an hour while the track was repaired.
修理赛道时车赛中止了1个小时。
2、表示某一件事是在另一件事发生过程中的某一时间点发生的)当…的时候,在…时
The two ministers have yet to meet, but may do so while in New York.
两位部长尚未会面,但可能会在纽约碰头。
3、却;但是;然而
The first two services are free, while the third costs £35.00.
前两项服务免费,但是第三项服务要花35英镑。
4、虽然;尽管
While the news, so far, has been good, there may be days ahead when it is bad.
尽管到现在为止还都是好消息,但是可能过不了几天就会有坏消息传来。
扩展资料
while
英 [waɪl] 美 [hwaɪl, waɪl]
conj.
而;虽然;在…期间;与…同时
n.(一段)时间
vt.消磨,打发(时间);(愉快而懒散地)度过(时间)(常与 away 连用)
第三人称单数: whiles 复数: whiles 现在分词: whiling 过去式: whiled 过去分词: whiled
在…期间;当…的时候
during the time that sth is happening
同义词: when
We must have been burgled while we were asleep.
我们睡着时一定让贼入室偷了。
Her parents died while she was still at school.
她还在读书时父母就去世了。
While I was waiting at the bus stop, three buses went by in the opposite direction.
我在公共汽车站等车时,对向驶过了三辆公共汽车。
(表示两件事同时发生)当…的时候,在…时
Racing was halted for an hour while the track was repaired.
修理赛道时车赛中止了1个小时。
(表示某一件事是在另一件事发生过程中的某一时间点发生的)当…的时候,在…时
The two ministers have yet to meet, but may do so while in New York.
两位部长尚未会面,但可能会在纽约碰头。
却;但是;然而
The first two services are free, while the third costs £35.00.
前两项服务免费,但是第三项服务要花35英镑。
虽然;尽管
While the news, so far, has been good, there may be days ahead when it is bad.
尽管到现在为止还都是好消息,但是可能过不了几天就会有坏消息传来。
在表示汉语"而"意思时,前后有对比的意思,用doing。
如:
I was doing my homework while my brother was watching TV.
但表示其它意思时,就不是一定用doing了,如:
I sat on the chair while he stood behind me. 我坐在椅子上,当时他就站在我身后。