2012英语四级语法讲义大全：状语从句二

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as

as if…

as though

Draw a cat as I taught you .

按照我教你的画一只猫。

Do as you are told.

按照人家告诉你做的去做。

She looks as if she is ill.

看上去她好象是生病了。

He acted as if (though) nothing had happened.

他的行动就好象什么也没有发生。

They treat the black boy as if (though) he were an animal.

他们对待这黑孩子仿佛他是一头牲口。

此处as译为，按照或正如

as if或as though的意义和用法基本一样。从句中可以用现在时表示可能符合事实，也可以用虚拟语气。

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though

although

Although (Though) he was over sixty, (yet)    he began to learn French.

虽然他六十多岁了，但仍开始学习法语 。

We were not tired though (although) we had worked all day.

虽然我们干了一天活，但并不累。

在句子中一般用了“虽然”就不能再用“但是”（but）但可以与yet或still连用。though / although意义相同，用法基本一样，前者通俗，口语化，后者正式多放主句的前面。

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even if

even though

I’ll go even if (though) it rains tomorrow.

即使明天下雨，我也要去。

even if 和even though的意思为“即使”“纵使”有退一步设想的意味，多用于书面语中。