as...as的用法,as ...as的用法 _生活百科

as soon as 的用法

文章插图
as soon as表示一。。。就，其中的从句通常用一般现在时表示将来时。
这个短语用的比较常用，口语和书面语都可以。它的特点是，在句子中的位置比较灵活，而且可以用于各种时态。例如:
I’ll write you as soon as I get there.
我一到那儿就给你来信。(一般现在时)
As soon as I went in, Jason cried out with pleasure.
我一进门，Jason 就高兴的叫起来。(一般过去时)
As to 和 As for 的用法有什么区别？

文章插图
as for (至于，就……方面说)和 as to (至于；关于)这两个复合介词在含义上相当接近，但在用法上差别很多。下面谈它们的这些差别。
1．as for
1)用以转换话题：在有前文的情况下as for总是出现在下文的句首，用来引简慧出另外一方或者新的谈话内容，但与前文内容也有一定的联系，起到补充前文又突出后文的作用，使之与前文形成对照，译作“至于” 。例如：
①You have a bed；as for him，he'll have to sleep on the floor．
②Much pasture land is underwater；and as for the grain, most of that has been ruined．
2)用以表现态度：as for还可以用来表示讲话人对拦敬答某人或某物持稿咐有“轻蔑”或“冷淡”的态度，甚至有憎恶之感，讲话时要重读引出的词语并在其后稍作停顿，以示强调，口气上带有嘲讽意味，译作汉语的“至于……嘛” 。例如：
①As for you，I never want to see you here in my home again．
②As for his songs，I suppose you've read the sarcastic reviews !
2．as to
1)表示涉及某点：as to常放于句中，表示“关于……方面”、“有关……之事”，但为了突出要提及的人或事之时，也可将as to置于句首，以示强调。但只涉及内容，而不涉及讲话人的态度。例如：
①His wife，an old teacher，has no complaint as to salary．
②As to your ability to overfulfil the target，I never had the slightest doubt．
2)用以重提旧事：as to引出的内容都是前文曾经提到过的或者谈话对方都有所了解的，表示“说到”之义。，例如：
①As to doing that，I haven't decided yet．
②As to the question you raised in your last letter，I think that it is unanswerable．
3)用于提出问题：as to必须位于句中，前面出现的大都是表达某种心理活动的动词，形容词或名词，其后引接出wh-clause或who-to-v结构，表示“在……的问题上”、“就……问题来讲”，所引出的问题都有很强的针对性。但有人认为这里的罄to显得多余，去之亦通。所以，有时也不必译出。例如：
①There is some doubt as to whether the proposal is practicable．
②I enquired of the clerk as to which documents were needed．
4)引出做事的依据：as to还有“按照”、“根据”的含义，而as for则无此义。例如：
①The shoes are correctly placed on the shelf as to size and colour．
②The items on the agenda are listed as to order of importance．
综上所述，as for 和 as to在确切含义的表达和具体用法上都是有很大差别的，不能将二者混为一谈。
as long as的全部用法

文章插图
as/so long as 的用法
一、在表示during the whole time that(长达……之久)或while(只要)的含义时,往往用as long as 。如:
1. They all continued their regard for me as long as they lived. 他们毕生都在关心着我.
2. For almost as long as Juanita could remember, adding, subtracting, multiplying, and dividing seemed as easy as breathing, and as natural. 在胡安妮塔的记忆中,加减乘除对自己来说早就是如同呼吸一样简单而自然了.