as as的用法總結

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　　1. as作連詞,引狀從。

　　1)表"當......時候",引時狀從,強調兩個動作同時發(fā)生,或某事一發(fā)生,另一事立即發(fā)生。

　　如：She sang a song as she walked. 她邊走邊唱著一首歌。

　　2)表"因為"、"由于",引原狀從，與because相近。

　　如：I must stop writing, as I have a lot of work to do. 我必須停筆,因為我有許多工作要做。

　　3)表"正如"、"按照""像......一樣",引方式/比較狀從。

　　如：Run as l do. (方狀從)/My brother is as tall as I am. 我弟弟和我一樣高。(比較狀從)

　　4)as經常用在as... as possible結構中,表示"盡可能地......"。

　　如：as quickly as possible盡可能快,as much as possible盡可能多。

　　5)表"盡管"、"雖然",常用于倒裝句式,引讓步狀從。

　　如： Old as he was, he still worked very hard. 他雖然年齡大了,但工作還很努力。

　　2. as用作介詞，表"充當"、"作為"。

　　如：As a party member, I must be strict with myself. 作為一名黨員,我必須嚴格要求自己。

　　She is famous as a singer. 她作為一名歌手而聞名。

　　3. as構成一些固定搭配。

　　1)as well as 同,和......一樣;

　　如: My parents often go for a walk after supper as well as my brother. 我父母經常晚飯后散步,我哥哥也是。

　　2)as soon as 一......就......

　　如：I will call you as soon as I get to the station. 我一到車站就會給你打電話。

　　3)as long as 只要

　　如：As long asyou don't betray me, I'll do whatever you ask me to (do). 只要你不出賣我，要我做什么我都愿意。

　　As 用法專練

　　1.It is generally believed that teaching is ____ it is a science.

　　A. much as an art as B. as much an art as

　　C.an art as much as D.as much as an art

　　2. _____ I admire David as a poet,I don’t like him as a man.

　　A.Only if B.If only

　　C. As much D.Much as

　　3. ____ ,he talks a lot about his favourite singers after class.

　　A.A quiet student as he may be B.Quiet student as he may be

　　C.Quiet as he may be a student D.As he may be a quiet student

　　4.I wonder why you don’t do it as ____ and it’s the third time you have done so.

　　A.told you B. be told

　　C. told to D. you told

　　5.( 1) ___I explain on the phone,your request will be considered at the next meeting.

　　(2)____ I explain on the phone is that your request will be considered at the next meeting.

　　A. What B.When C.After D. As

　　6.(1)That is ____ problem____can’t be worked out by anyof us .

　　(2)That is ____problem____none of us can work it out.

　　A.a such difficult , that B.so difficult a ,that

　　C.such a difficult, as D.a so difficult ,as

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