as引导的从句(共3页).doc
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1、精选优质文档-倾情为你奉上as引导的从句 崔长平 河南省遂平中学()在英语中,as作为一个常见的从句引导词,其用法和意义十分活跃而丰富,若不加以区分,很容易造成混淆。现将其主要用法归纳如下:1)引导时间状语从句在as引导的时间状语从句中,谓语动词既可以是延续性的也可以是非延续性的;有时从句的谓语动词也可用进行时形式。as引导的时间状语从句常可用来强调主、从句中的动作同时发生或伴随发生,常译作“随着”,“一边一边”,“一就”等。在省略句中,as之后经常放置一个名词或名词词组。I heard the murmur of their voices as I crossed the hall.A lo
2、ok of surprise came into Alisons eyes as she read the message.Scott became nervous as he saw her face.Just as he was speaking there was a loud explosion.He smiled as he passed.As she sang,the tears ran down her cheeks.We get wiser as we get older.As a young man,he was a store keeper and later a post
3、master.2)引导让步状语从句象although,though,while一样,as也可以用来引导一个让步状语从句,意为“尽管,虽然”, as引导的这种让步状语从句语气比较强,语体正规,经常用于书面语言,但as引导的让步状语从句须倒装。其倒装要求如下:表语as主语系动词(表语经常是由形容词、分词、或名词充当;名词用作表语时,其前不能加用冠词。)Young as he is,he is equal to the task.Crowded as the restaurant was,they tried to find a table.Child as he was,he knew what
4、was the right thing to do.状语as主语谓语动词(这一结构中的谓语动词一般是行为动词,既可以是及物动词(带宾语)也可以是不及物动词。)Hard as he studied,he did not get good marks in the exam.Early as we got there,our teacher was there before us.Much as I admire him as a writer I dont like him as a man.动词as主语(在这一结构中,主语后面一般加上情态动词may,might,will,would,can,c
5、ould等,句首的动词应该保持原形。如果从句中没有情态动词,那么,应在从句的主语之后(根据时态和数的要求)加上助动词do、does或did。在这一结构中,放在句首的动词如果是及物动词,那么,这个动词连同它的宾语一起放到as之前。)Search as they would,they could find nothing in the house.Try as he may,he will fail in the examination.Die as he did,his inspiration lived on.Lose money as I did,I got a lot of experie
6、nce.3)引导原因状语从句as引导原因状语从句时,语气不及because强烈,它接近于since,now that,一般译作“既然,由于”之类的意义,只是“附带说明的理由”,表达一种说话人和听话人“共知的原因”。as引导的原因状语从句一般置于主句之前。As all the seats were full he stood up.As Davidson had a passion for walking,we started off on foot.As you are sorry,Ill forgive you.It is very difficult for us to know what
7、 to do as we are not his parents.4)引导方式状语从句as引导方式状语从句时,只修饰和说明主句的谓语动词,表示“按照,依照”、“用什某么方式或方法”;as只起引导词的作用,一般不在从句中充担成分;从句一般应置于主句之后,有时也可置于主句之前。She cooks fish as my mother does.We must do as the Party tells us to.We should learn a foreign language as Marx did.As you like maths,I like biology.As a man lives
8、,so he dies.When at Rome do as the Romans do.5)引导表语从句as有时可以用来引导一个表语从句,意为“像的样子(那样)”。Things were almost as they had been before.His rooms were exactly as he had left them.The cottage is just as it was in Shakespeares time.有时可以用来表示比例关系:2 is to 4 as 8 is to 16.(24 8 16)6)引导比较状语从句as可以构成“as as ”结构,表示“原级比较
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