定语从句是大家非常熟悉的一种从句,在考试中可以说是无处不在。说到定语从句的关系代词,大家肯定会异口同声地喊出thatwhichwho今天我们要讲讲as、but和than这三个特殊的关系代词。
As、but和than通常都是以介词、连词等身份被大家所熟知,而它们居然可以摇身一变成为关系代词,在定语从句中做主语和宾语。
As
As最基本的用法是做连词与一样表示同级的比较,介词作为。下面是它特殊的用法,例句:
1. He does not possess such qualifications as are necessary to be an actor.
他并不具备一名演员应有的资格。
2. She bought the same skirt as I had bought last week so I need to talk to her about it so we dont wear them at the same time.
她买的那条裙子和我上周买的一模一样,我要和她商量一下,免得撞衫。
上面两个例句中定语从句都使用了as作为关系代词,我们可以发现例句1中含有suchas,例句2中含有the sameas,由此可见,我们到底要不要使用as来做关系代词,可以根据句中是否出现了与as搭配的短语进行判断。
3. The murderer who had killed several people on the campus was finally arrested by the police, as was expected.
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2016-02-29
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