大师作文网while(while与as)
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(1) _________ you are at home alone, please don’t leave the door open.
A. While B. As C. Before D. How
(2) _________ you are alone with her, tell her that you like her.
A. While B. As C. After D. How
（为什么用while 不用as，什么区别）
A. While B. As C. Before D. How
(2) _________ you are alone with her, tell her that you like her.
A. While B. As C. After D. How
（为什么用while 不用as，什么区别）
解题思路： 见下
解题过程：
在这2个题中，while译成“在……期间”，后面的动词往往是延续性动词，例如题中的are……
as：连接时间状语从句的时候，译成“正当”；“随着”；“一边……一边”，后面的动词经常是短暂性动词，例如：
As time went by， he came to understand what his parents said to him.
随着时间的推移，他逐渐理解了父母的话。
除此之外，as还可以：
1) as引导定语从句：在限定性定语从句中，先行词前有such, the same 修饰时，用as
His plan was such a good one ___ we all agreed to accept .
A as B that C so D and
2）as引导非限定性定语从句：
(2005浙江卷) ____ I explained on the phone, your request will be considered at the next meeting.
A When B After C As d Since
3）as引导让步状语从句，并且引起倒装。“尽管”
(2005广东卷)___, Carolina couldn’t get the door open.
A Try as she might B As she might try
C She might as try D Might she as try
5) as 引导比较状语从句 场合as……as……
I can do it as well as you (do).
6) as 引导方式状语从句 “像”
Please do the experiment as the teacher tells you.
7)as 引导原因状语从句 “既然”，表示显而易见的原因
As there was no bus，we have to go home on foot.
如对本题解答还有疑问，可在“继续讨论”中留言，我收到后会尽快给你答复。谢谢你的配合！匆忙中难免有疏漏，请多包涵哦。我是菁菁草老师，随时为你答疑解惑!
最终答案：略
解题过程：
在这2个题中，while译成“在……期间”，后面的动词往往是延续性动词，例如题中的are……
as：连接时间状语从句的时候，译成“正当”；“随着”；“一边……一边”，后面的动词经常是短暂性动词，例如：
As time went by， he came to understand what his parents said to him.
随着时间的推移，他逐渐理解了父母的话。
除此之外，as还可以：
1) as引导定语从句：在限定性定语从句中，先行词前有such, the same 修饰时，用as
His plan was such a good one ___ we all agreed to accept .
A as B that C so D and
2）as引导非限定性定语从句：
(2005浙江卷) ____ I explained on the phone, your request will be considered at the next meeting.
A When B After C As d Since
3）as引导让步状语从句，并且引起倒装。“尽管”
(2005广东卷)___, Carolina couldn’t get the door open.
A Try as she might B As she might try
C She might as try D Might she as try
5) as 引导比较状语从句 场合as……as……
I can do it as well as you (do).
6) as 引导方式状语从句 “像”
Please do the experiment as the teacher tells you.
7)as 引导原因状语从句 “既然”，表示显而易见的原因
As there was no bus，we have to go home on foot.
如对本题解答还有疑问，可在“继续讨论”中留言，我收到后会尽快给你答复。谢谢你的配合！匆忙中难免有疏漏，请多包涵哦。我是菁菁草老师，随时为你答疑解惑!
最终答案：略