摘要:4.定语从句中as的用法 1)as引导的限制性定语从句: 当先行词前有as, the same, such, so修饰时.关系代词常用as.例如: As many members as were present agreed to the plan. I’d like to have the same books as are used in your school. He is not such a person as I expected. 2)as引导的非限制性定语从句与which引导的非限制性定语从句的异同 which和as都可以指代主句中的一部分或整个句子的内容.有时可以互换: Our team lost the game, as/which was reported in the newspaper. She was terrified, as/which I could see from her eyes. 区别:as引导的非限制性定语从句可以放在主句前面.插在主句中间或放在主句末尾,而which引导的非限制性定语从句只能放在先行词后面或主句后面.例如: As anybody can see, the elephant is like a snake. =The elephant, as anybody can see, is like a snake. =The elephant is like a snake, as anybody can see. Mary was late again, which made the teacher angry. as引导的从句有“正如 .“正像 之意.而which则无此意.常用句型有: as we all know, as is known to all, as everybody can see, as is expected等.如: As we all know, paper was first made in China. as 引导的从句在意义上不能与主句相抵触.而which不受此限制.试比较: He did the experiment successfully, as had been expected. He failed in the experiment, which was unexpected.

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