题目
while这个词在什么时候用?
提问时间:2021-04-09
答案
While的用法
一、while用作名词时,意为“一段时间,一会儿”.例如:
I stayed there for a short while.(我在那儿呆了一小会儿.)
The postman came a short while ago.(邮递员刚刚来过.)
二、while用作连词时,有以下几种含义:
1、意为“当……时候,和……同时”,引导时间状语从句.例如:
While I was watching TV,the bell rang.我看电视时,铃响了.)
Tom watched TV while she ate her supper.(汤姆边吃晚饭边看电视.)
2、意为“虽然,尽管”,引导让步状语从句.例如:
While it was late,he went on working.(虽然很晚了,但他还在继续工作.)
While he is in poor health,he works hard.(虽然他身体不好,但他还是努力工作.)
3、连接两个并列句子,表示“对比”关系.例如:
He went out for a walk,while I stayed at home.(他出去散步了,而我却呆在家里.)
I like singing while she likes dancing.(我喜欢唱歌,而她喜欢跳舞.)
You like sports,while I prefer music.(你喜欢体育,而我更喜欢音乐.)
三、while引导状语从句时,应注意以下几点:
1、while引导的时间状语从句既可放在句首,也可放在句末;而while引导的让步状语从句一般放在句首,不放在句末.另外,也可以从意义上加以区分.例如:
While he was tired,he went on working.(虽然他累了,但他还是继续工作.)
(while引导让步状语从句)
While he was tired,he would have a rest.(他累了就休息一会儿.)
(while引导时间状语从句)
2、while引导让步状语从句时,如果从句的主语和主句的主语相同,那么从句的主语和谓语动词be都可以省略.例如:
While he was ill,he went there.(=While ill,he went there.)
(虽然他有病,但他还是去那里了.)
3、while和when都可以引导时间状语从句,但应注意:while引导的时间状语从句中的谓语动词必须是延续性的动词;而when引导的时间状语从句中的谓语动词既可以是延续性动词,也可以是非延续性动词.当时间状语从句中的谓语动词是延续性动词时,while和when可以互相替换.例如:
While we were talking,the teacher came in.(我们正在谈话时,老师进来了.)
The bus had left when we arrived at the bus stop.(当我们到达车站时,公共汽车已经开走了.)
(arrive是非延续性动词,因此,此句中的when不能用while替换.)
When/While we were having a meeting,our teacher came in.(我们正在开会时,老师走了进来.)
(have是延续性动词,因此,句中的when可以用while替换.)
4、while引导的状语从句还可以表示“某个动作正在进行的同时,另一个动作也在进行之中”.例如:
While the teacher was speaking,the students were listening.(老师讲课时,学生们在听.)
While he was writing,I was reading.(他写字时,我在看书.)
一、while用作名词时,意为“一段时间,一会儿”.例如:
I stayed there for a short while.(我在那儿呆了一小会儿.)
The postman came a short while ago.(邮递员刚刚来过.)
二、while用作连词时,有以下几种含义:
1、意为“当……时候,和……同时”,引导时间状语从句.例如:
While I was watching TV,the bell rang.我看电视时,铃响了.)
Tom watched TV while she ate her supper.(汤姆边吃晚饭边看电视.)
2、意为“虽然,尽管”,引导让步状语从句.例如:
While it was late,he went on working.(虽然很晚了,但他还在继续工作.)
While he is in poor health,he works hard.(虽然他身体不好,但他还是努力工作.)
3、连接两个并列句子,表示“对比”关系.例如:
He went out for a walk,while I stayed at home.(他出去散步了,而我却呆在家里.)
I like singing while she likes dancing.(我喜欢唱歌,而她喜欢跳舞.)
You like sports,while I prefer music.(你喜欢体育,而我更喜欢音乐.)
三、while引导状语从句时,应注意以下几点:
1、while引导的时间状语从句既可放在句首,也可放在句末;而while引导的让步状语从句一般放在句首,不放在句末.另外,也可以从意义上加以区分.例如:
While he was tired,he went on working.(虽然他累了,但他还是继续工作.)
(while引导让步状语从句)
While he was tired,he would have a rest.(他累了就休息一会儿.)
(while引导时间状语从句)
2、while引导让步状语从句时,如果从句的主语和主句的主语相同,那么从句的主语和谓语动词be都可以省略.例如:
While he was ill,he went there.(=While ill,he went there.)
(虽然他有病,但他还是去那里了.)
3、while和when都可以引导时间状语从句,但应注意:while引导的时间状语从句中的谓语动词必须是延续性的动词;而when引导的时间状语从句中的谓语动词既可以是延续性动词,也可以是非延续性动词.当时间状语从句中的谓语动词是延续性动词时,while和when可以互相替换.例如:
While we were talking,the teacher came in.(我们正在谈话时,老师进来了.)
The bus had left when we arrived at the bus stop.(当我们到达车站时,公共汽车已经开走了.)
(arrive是非延续性动词,因此,此句中的when不能用while替换.)
When/While we were having a meeting,our teacher came in.(我们正在开会时,老师走了进来.)
(have是延续性动词,因此,句中的when可以用while替换.)
4、while引导的状语从句还可以表示“某个动作正在进行的同时,另一个动作也在进行之中”.例如:
While the teacher was speaking,the students were listening.(老师讲课时,学生们在听.)
While he was writing,I was reading.(他写字时,我在看书.)
举一反三
已知函数f(x)=x,g(x)=alnx,a∈R.若曲线y=f(x)与曲线y=g(x)相交,且在交点处有相同的切线,求a的值和该切线方程.
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
奥巴马演讲不用看稿子.为什么中国领导演讲要看?
想找英语初三上学期的首字母填空练习……
英语翻译
最新试题
热门考点
- 1设f(sinα+cosα)=sinα×cosα,则f(sinπ∕6)的值为
- 2关于国庆节的英文介绍,
- 3They are of medium height.
- 4甲乙两人原来存款数相同.后来甲取出250元,而乙又存入350元,这时乙的存款数正好是甲存款数的4倍,原来没
- 5如果地球的含氧量增加有没有可能出现巨型动植物呢?
- 6某公司向银行贷款20万元资金,约定两年到期时一次性还本付息,利息是本金的12%,该公司利用这笔贷款经营,两年到期时除还清贷款的本金和利息外,还盈余6.4万元,若在经营期间每年比
- 7从2开始 连续的偶数相加126+128+130+``````+300
- 8英语翻译
- 9a series of n复述,一系列,动词单数复数?
- 10已知在平行四边形abcd中,过对角线交点o昨直线ef角ad于e,交 bc于f,求证四边形aecf是平行四边形