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只要分析句子成分,就可以区分了。
一、as引导原因状语从句,在句中充当状语,是连词, 如:
As her mother was ill, she was late for class. 因为。。。
二、as 引导非限定定语从句,在从句中充当主语或宾语,是关系代词,如:
As is known to all, Taiwan is part of China.
As 在从句中充当is的主语,关系代词,指代主句所陈述内容。 又如:
As we all know, Taiwan is part of China.
As 在从句中充当know的宾语语,关系代词,指代主句所陈述内容。
一、as引导原因状语从句,在句中充当状语,是连词, 如:
As her mother was ill, she was late for class. 因为。。。
二、as 引导非限定定语从句,在从句中充当主语或宾语,是关系代词,如:
As is known to all, Taiwan is part of China.
As 在从句中充当is的主语,关系代词,指代主句所陈述内容。 又如:
As we all know, Taiwan is part of China.
As 在从句中充当know的宾语语,关系代词,指代主句所陈述内容。
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