1、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
2、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,
3、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
4、: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
5、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。)
copyright@ 2008-2022 冰豆网网站版权所有
经营许可证编号:鄂ICP备2022015515号-1