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2017年英语三级精选词组知识点预览

as though 似乎、好像

【例句】He behaved as though nothing had happened. 他装作若无其事的样子。

【总结】as if/as though的用法

as if 与as though 是一组同义词，两者意思相同，用法也相同，只是在口语中人们多半会用as if, 取其简短。as if和as though用法较为复杂，

(一)在通常情况下，as if 和as though所引导的从句的谓语动词多用虚拟语气，表示所叙述的情况与事实相反。具体用法如下：

1)谈论现在情形的，用过去时(动词be用were,也可用was)：

Why is she looking at me as though she knew me? 他为什么那样看我?像是认识我似的。

He behaves as if he owned the house. 他的样子好像他拥有这个房子。

Its not as though he was /were poor.

2)谈论过去情形的动词形式有以下几种：

a)过去式，表示过去的状态，如：He stood there looking at the train and laughing, as if to miss a train was the best joke in the world.

他站在那里，望着火车哈哈大笑，好像误了火车是天底下最开心的事儿似的。

Mr. Coleman always talked as if he knew everything.

但是，如果状态动词带有持续时间状语，则用过去完成时：

They talked as if they had been friends for years.

(试比较：They had been friends for years.)Now it is as though she had known Millie for years. (《现代英语用法词典》)情态动词亦用过去时：

b)过去完成时，表示过去的动作先于主句动词而发生或完成，如：

It was as if he had lost his last friend.

I remember, she tells her children now,how wild his white hair looked——as if it had been electrified.必须注意的时，在指过去的动作时，即使主句是现在时，as if 从句中的动词也要用过去完成时：He talks about Rome as though he had been there himself.

他讲起罗马的情况来就好像他亲自到过那里似的。

c)过去进行时，表示动作正在进行：

He heard a noise, as if someone was breathing.

I felt as if the ground were slipping beneath my feet. 我感到大地仿佛在脚下滑动。

d)过去将来时，表示将要发生的事态：It looked as if it was going to snow.