作业帮语法（请尽量详细）
来源：学生作业帮 编辑：作业帮 分类：英语作业 时间：2024/10/04 03:03:01
总结1.though,although用法 2.however,but用法 3.while用法
解题思路：
解题过程：
3.while用法
连词while大致有以下四种用法:
1).引导时间状语从句,意为"当……的时候;和……同时",此时的主从句谓语动作同时发生,从句谓语通常是延续性动词。如:
Mary watched TV while she ate her supper.玛丽边吃饭边看电视。
While she was listening to the radio, she fell asleep.她听着收音机睡着了。
while引导从句时,如主从句的主语一致,且从句谓语又含有be,则从句主语和be可省略。while后可直接跟现在分词、名词、形容词或介词短语。如:
We are teachers while (we are) serving as students.我们边当老师边当学生。
While (he was) yet a youth, he gained many prizes.他年轻时就曾多次获奖。
He caught a cold while(he was) on vacation.他度假时患了感冒。
2).表示对比或转折,意为"而;然而"。此时,while一般位于句中。如:
Some people waste food while others haven't enough.有些人浪费粮食,然而有些人却吃不饱。
You like sports, while I prefer music.你喜欢体育,而我更喜欢音乐。
3).表示让步,通常位于句首,意为"尽管;虽然"。如:
While I agree with your reasons, I can't allow it.尽管我同意你的理由,但我不能允许这样做。
While he loves his students, he is very strict with them.虽然他爱他的学生,可是他对学生们很严格。
While (he was) respected, he is not liked.他虽受人尊敬,但并不被人喜欢。
4).表示条件,意为"只要",其意思和用法相当于as long as。while可位于句首,也可位于句中。如:
You don't have to worry while we are here.只要我们在,你就别着急。
There will be life while there is water and air.只要有空气和水,就有生命。
While there is life, there is hope.留得生命在,不怕没希望。
最终答案：略
解题过程：
3.while用法
连词while大致有以下四种用法:
1).引导时间状语从句,意为"当……的时候;和……同时",此时的主从句谓语动作同时发生,从句谓语通常是延续性动词。如:
Mary watched TV while she ate her supper.玛丽边吃饭边看电视。
While she was listening to the radio, she fell asleep.她听着收音机睡着了。
while引导从句时,如主从句的主语一致,且从句谓语又含有be,则从句主语和be可省略。while后可直接跟现在分词、名词、形容词或介词短语。如:
We are teachers while (we are) serving as students.我们边当老师边当学生。
While (he was) yet a youth, he gained many prizes.他年轻时就曾多次获奖。
He caught a cold while(he was) on vacation.他度假时患了感冒。
2).表示对比或转折,意为"而;然而"。此时,while一般位于句中。如:
Some people waste food while others haven't enough.有些人浪费粮食,然而有些人却吃不饱。
You like sports, while I prefer music.你喜欢体育,而我更喜欢音乐。
3).表示让步,通常位于句首,意为"尽管;虽然"。如:
While I agree with your reasons, I can't allow it.尽管我同意你的理由,但我不能允许这样做。
While he loves his students, he is very strict with them.虽然他爱他的学生,可是他对学生们很严格。
While (he was) respected, he is not liked.他虽受人尊敬,但并不被人喜欢。
4).表示条件,意为"只要",其意思和用法相当于as long as。while可位于句首,也可位于句中。如:
You don't have to worry while we are here.只要我们在,你就别着急。
There will be life while there is water and air.只要有空气和水,就有生命。
While there is life, there is hope.留得生命在,不怕没希望。
最终答案：略