while用法

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while的用法主要有以下几种:

1. 用作名词,意为“一段时间,一会儿”,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。)

2. 用作连词时,可以表示“当……时候,和……同时”,引导时间状语从句,While I was watching TV, the bell rang. (我看电视时,铃响了。) Meimei watched TV while she ate her supper. (梅梅边吃晚饭边看电视。)

3. 也可以表示“虽然,尽管”,引导让步状语从句,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。)

4. 还可以连接两个并列句子,表示“对比”关系,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。)

5. 还可以表示“而”“但”,Air is a fluid but not a liquid, while water is both a fluid and a liquid. 空气是流体不是液体,水是流体也是液体。

6. 在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,While (he was) in prison, she wrote her first novel. 她在狱中写出了第一部小说。

以上是while的用法,希望对您有所帮助。