asif，asifitsyourlast

asif和asthough有什么区别？

as if,as though:都是“好像，似乎” 的意思。 它们的区别在于：

1.在as if从句中表达与现在事实相反从句用过去时。 He felt as if he alone were responsible for what had happened . 他感到仿佛他要独自为所发生的一切负责。

2.在as though从句中,表示过去想象中的动作或情况，从句用过去完成时。 The machine operated as though it had been repaired . 这台机器运行起来好像已被修理过似的。

as if和as though的区别？

一、文法不同　as if 引导的方式状语从句或表语从句，用虚拟语气。例句：　He acts as if he knew me. 他显得认识我似的。as though 表示与现在事实相反，谓语动词，用would (might, could)+动词原形。例句：They treat me as though I were a stranger. 他们待我如陌生人。

二、时态不同as if 表示与过去事实相反，用过去完成时。例句：This meat tastes as if it has already gone bad. 这肉吃起来似乎已经坏了。as though 表示将来的可能性不大，用一般过去时。例句：I feel as though I’m floating on air. 他感到好像漂浮在空中。

三、语境不同as if 用来描述比较悲惨的境遇或者状况。例句：It is not as if he were poor. 他不像穷的样子(或他又不穷)。as though 语境属于中性，可以用到很多情境中。

as if 和as though 的区别？

as though 和 as if 没有什么区别。as if用得普遍些，他们都可以引导方式状语从句和表语从句等，其从句谓语常用虚拟语气。

(1)引导方式状语从句

He closed his eyes as though he were too tired．

他闭着眼睛，好像太累了。

She acted as though nothing had happened．

她装得好像什么事也没发生过似的。

当从句主语和主句主语一致，从句谓语中又含有动词to be时，可以把主语和to be

一起省去。

He looked about as though (he was)in search of something．

他四下张望，好像寻找什么。

He paused as if(he was)expecting Tom to speak．

他停了下来好像期望Tom说些什么。

He listened as though he was turning to stone．

这孩子一动不动地听着，仿佛变成了石头似的。

(2)引导表语从句

It looks as if its going to rain．

看样子天要下雨了。

It seems as if I'm the first one here．

看起来我是第一个到这里的。

as though和as if从句用虚拟语气，还是用陈述语气。完全根据具体情况而定。如果从句表示的意思与事实完全相反，或者纯粹是一种假设，通常用虚拟语气。

When a pencil is partly in a glass of water．it looks as if it were broken．

当铅笔一部分放进水里，看起来好像折断了似的。(虚拟)

You look as if you are friends．

你们看起来像朋友似的。