dongjs000
幼苗
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as is known to us
不选B 是因为这里的telephone 是泛指,不是单独的哪一个
至于C和D
As we know和as we know it请大家先来对比下面这组句子.1.a. Life, as we know, needs water and oxygen.b. Life as we know it needs water and oxygen.解析:在a句中,as引导的是一个非限制性定语从句,as所指代的先行词就是整个主句“lifeneeds waterand oxygen”,此时as在从句中充当的是know的宾语.对于a句,我们可以把as从句移到句首,说成:“As we know,life needs water and oxygen.”也可以将其改写成宾语从句:“We know that life needs water and oxygen.”从宾语从句我们更容易看出来,从句中know的宾语是“life needs water and oxygen”.在b句中,as引导的是一个方式状语从句,而不是非限制性定语从句.As后面接的是一个完整的陈述句“we know it”,因此as没有指代任何成分,也不充当从句的句子成分,只起到连词的作用.不过,as从句中的代词it指代as前面的名词life.因此,as从句的谓语动词know的宾语就是life.就从句的位置而言,b句中的as从句一般不会放在句首,比如我们不能说:“As we know it, life needs water and oxygen.”
1年前
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