英语定语从句语法问题What作为定语从句的先行词时What=all that,all相当于名词.现在有个句子:What little he knows about it is out of date and in accurate.当我把What也看成all that时,that引导的从句怎么还原后

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英语定语从句语法问题What作为定语从句的先行词时What=all that,all相当于名词.现在有个句子:What little he knows about it is out of date and in accurate.当我把What也看成all that时,that引导的从句怎么还原后

英语定语从句语法问题What作为定语从句的先行词时What=all that,all相当于名词.现在有个句子:What little he knows about it is out of date and in accurate.当我把What也看成all that时,that引导的从句怎么还原后
英语定语从句语法问题
What作为定语从句的先行词时What=all that,all相当于名词.
现在有个句子:What little he knows about it is out of date and in accurate.当我把What也看成all that时,that引导的从句怎么还原后也不对劲?

英语定语从句语法问题What作为定语从句的先行词时What=all that,all相当于名词.现在有个句子:What little he knows about it is out of date and in accurate.当我把What也看成all that时,that引导的从句怎么还原后
你的问题有几个地方有错误:
1.what不能引导定语从句,只能引导名词性从句(即:主语从句、宾语从句、表语从句、同位语从句),且在从句中充当主语、宾语或表语.
把what换成all that之后,that引导的才是定语从句.
2.What little he knows about it is out of date and in accurate这个句子中多了一个单词——little.
What he knows about it is out of date and in accurate.(what引导的是主语从句.)
=All that he knows about it is out of date and in accurate.(that引导的是定语从句,修饰all.)
不明白的再问哟!请记得采纳,多谢!

可以换 语法没有问题。

what 引导的是主语从句,在句子中做宾语

本句 只能说是what little 引导的 主语从句 并作从句中的宾语
little 是不定代词 what这里是形容词
what little 不是 what 所以 不能用all that 替换
如果替换 也只能 用little that 来替换

其实 先行词加关系代词引导的定语从句 就等于 连接代词引导的名词性从句
或者说 连接代词引导的...

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本句 只能说是what little 引导的 主语从句 并作从句中的宾语
little 是不定代词 what这里是形容词
what little 不是 what 所以 不能用all that 替换
如果替换 也只能 用little that 来替换

其实 先行词加关系代词引导的定语从句 就等于 连接代词引导的名词性从句
或者说 连接代词引导的名词性从句 就等于 先行词加关系代词引导的定语从句

注意 what不是定语从句的先行词 而是引导名词性从句的连接代词 what不能引导定从
因为它本身 就等于先行词加 关系代词

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这并不是定语从句

这个句子不是定语从句,而是主语从句。从句在整个句子中的成分决定了该从句是定语从句还是主语从句。

what 可以当疑问形容词用,放在名词的前面,表示“多么的,何等的”。这里的little做名词理解。先行词是 little,定语从句是he knows about it 。先行词还原到从句中是he knows little about it 。整个句子可以翻译为“他对这件事的那点了解即过时又错误。”

He claims to be an expert in astronomy, but in actual fact he is quite ignorant on the subject. What little he knows about it is out of date and inaccurate.(1997年第7题)
  分析: but前后为一组并列句,而What littl...

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He claims to be an expert in astronomy, but in actual fact he is quite ignorant on the subject. What little he knows about it is out of date and inaccurate.(1997年第7题)
  分析: but前后为一组并列句,而What little he knows about it is out of date and inaccurate是一个复合句,即主语从句,what little he knows about it在主语从句中作主语。
  译文: 他声称是天文学的专家,而事实上他对该学科一窍不通。所知道的一点点也是过时的且不准确的

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