as的用法小结(版)

时间:2024-07-14 08:10:38 学人智库 我要投稿
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as的用法小结(精华版)

  1.Child as[though]he was, he did quite well. 他虽是个孩子,但已干得很不错。

  2. 用作关系代词,主要用法有二。如:

  (1) 用在such, same, as等之后,引导限制性定语从句。如:

  This is thesame watch as I lost. 这块表跟我丢失的那块一样。

  Such men as (=Those men who) heard of him praised him. 听说过他的人都赞扬他。

  (2) 单独用作关系代词,引导非限制性定语从句,可放在主句之前 (常译为:正如)或之后 (常译为:这一点),且主从句之间一般要用逗号隔开。如:

  He was absent, as is often the case. 他缺席了,这是常有的事。

  As was expected, he succeeded at last. 正如我们所料,他终于成功了。

  3. 用来表示目的,下面两种句子结构都可以。如:

  仔细写以便把每句话都写清楚。

  正:Write carefully so as to make every sentence clear.

  正:Write so carefully as to make every sentence clear.

  4. 在正式文体 (尤其是文学体裁)中,as后可用倒装语序表示“…也一样”这类意思 (现代英语通常so表示这一用法)。如:

  He travelled agreat deal, as did most of his friends. 他去过许多地方旅游,他的多数朋友也是一样。

  He plays the piano, as does his mother. 他会弹钢琴,他母亲也会。

  注:用作连词,表示原因 (参见because),表示时间 (参见when)。

  5. 用于 as if

  as though, 意为“仿佛”、“似乎”。两者一般可通用 (但注意不能说 as although)。用法上注意几点:

  (1) as if [though] 可引导状语从句和表语从句,从句谓语根据语义的要求,可用陈述语气 (若可能为事实)或虚拟语气 (若为假设或不太可能是事实)。如:

  It looks as if it is going to rain. 天似乎要下雨了。

  It seems as if you’re right. 似乎你是对的。

  He talks asthough he knew everything. 他夸夸其谈,好像无所不知。

  When apencil is partly in a glass of water, it looks as if it werebroken. 当把一支铅笔的一部分放在一杯水里时,它看起来好像折断了似的。

  当主句谓语是过去时态时,从句谓语常可用陈述语气。如:

  He pausedas though he found a difficulty. 他停了下来,似乎遇到了一个难题。

  She felt as if she lost something. 他觉得似乎丢了什么东西。

  (2) 当从句主语与主句主语一致,且从句谓语中又包括有动词be时,从句主语及其谓语中的动词be通常可以省去。如:

  From time to time heturned round as though (he was) searching for someone. 他不时地四下张望,好像在找人。

  He opened his mouth as if (he was)to speak. 他张开口,好像要说话似的。

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