在英语中,主句和从句是构成复杂句的基本要素,主句能独立存在,而从句必须依附于主句。从句可以由不同的连词引导,如that、which、who等。使用从句时,需要注意连词需要与从句的主语和动词相匹配,且从句需要与主句保持一致的时态和语态。理解主句和从句的用法对学习英语语法和写作非常重要。
一个句子中可以包含多个从句,这些从句可以用不同的连词来引导,例如:that、which、who等等。一般来说,从句在主句之后出现。
以下是一些常用的从句引导词和它们的用法:
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That:用于引导表述事实的从句。例如:I believe that he is a good person.
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Which:用于引导解释或说明的从句。例如:The book, which I borrowed from the library, is very interesting.
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Who/whom:用于引导表述人的从句。例如:The woman who is standing over there is my mother.
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Whose:用于引导表述所有权的从句。例如:The car whose owner is my friend is parked outside.
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When:用于引导表述时间的从句。例如:I will leave when the party is over.
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Where:用于引导表述地点的从句。例如:This is the hotel where we stayed last year.
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Why:用于引导表述原因的从句。例如:I don't understand why he is angry.
当我们使用从句时,需要注意从句与主句之间的连词需要与从句的主语和动词相匹配。此外,从句也需要与主句保持一致的时态和语态。