关系代词as的经典用法.docx

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1、关系代词as经典用法 关系代词as既可以引导限制性定语从句，也可以引导非限制性定语从句，as在从句中作主语、宾语或表语。引导限制性定语从句常用于下列句式：其中关系代词as在从句中担当主语、宾语或表语。We have found such materials as are used in their factory.我们已经找到了像他们工厂里用那种材料。(as作主语)These houses are sold at such a low price as people expected.(as作宾语)这些房子以人们期望低价出售。He is not the same man as he was.他

2、和过去不同了。(as作表语)4.关系代词as，which区别(1)as引导非限制性定语从句，既可在主句前，又可在主句后，有时还可插入主句中，而which引导非限制性定语从句只能置于主句之后。相同是两者都可替代主句整个内容，而不是主句中某一个词。 The weather turned out to be very good，which was more than we could expect.(2009山东高考)Whenever I met her，was fairly often，she greeted me with a sweet smile.A.who B.whichC.when D.

3、that选句意：不管我何时遇见她，她都用甜甜微笑迎接我，这是常事儿。which引导非限制性定语从句，指代前面句子。故选B。(2)当非限制性定语从句放在主句前面时，只能用as。 As is known to everybody，the moon travels round the earth once every month. The moon travels round the earth once every month，as/which is known to everybody. It is known to everybody that the moon travels round t

4、he earth once every month. What is known to everybody is that the moon travels round the earth once every month. 后两句属名词性从句范畴。(3)as意为“正如”，后面谓语动词多是see，know， expect，say，mention，report，announce等；which意为“这一点”。 As is known to all，Edison invented the telephone. Edison invented the telephone，as is known to

5、all.(2009西安八校联考)A war is so cruel that it always causes great losses， has happened in Iraq.A.what B.asC.that D.one选as为关系代词，引导定语从句，指代前面整个句子。故选B。注意(1)such.as.(定语从句)像那样，such.that.(状语从句)如此以至于This is such an easy question as I can answer.(定语从句)这是一个我能回答简单问题。This is such an easy question that I can answer

6、it.(状语从句)这是个简单问题，我能回答。(2009福州检测)Mount Wuyi is such an attractive place of interest everyone likes to visit.A.that B.asC.which D.what选as everyone likes to visit是定语从句，修饰先行词place，as在从句中作visit宾语，此句是“such.as.”结构。如果理解为结果状语从句而选择A项，需要在题干中visit后加上it。故选B。(2)the same.as.表示相似东西， the same.that.表示同一人或物 This is the same knife as I lost.这把小刀和我丢那把一样。 This is the same knife that I lost.这把小刀就是我丢那一把。2 / 2