as to与as for区别.docVIP

as to as for区别 as for 与as to区别 as for 与as to区别 as to as for区别 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 can have a bed；as for him，hell 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某人或某物持有“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 youve 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 n0 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 havent 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。 　在英语中表示“就……而论”“有关”或“至于”含义的词语颇多，其中 as to 和 as for 亦表此义，但二者用法不尽相同。 　　as to 的功能类似于 with regard to， regarding， on the matter of， concerning 等，常用于相当正式的语境中，尤其用于争论和做出决定时。可放于句首或与 wh- 疑问词引导的动词不定式和名词性从句连用（有时可省略），而 as for 无此种用法。例如： 　　As to the journey， we must decide about that later. 　　至于旅行，我们必须以后再作决定。 　　As to the flood， I have heard nothing. 　至于那次水灾，我没听到什么。 　　Nobody could decide （ as to ） what to do. 　　谁也不能决定该做些什么。 　　He is very uncertain as to