请帮忙分析一下句子成分Tom's brother is a policeman.Which he isn't.请帮忙细致的分析一下句子成分.

问题描述:

请帮忙分析一下句子成分
Tom's brother is a policeman.Which he isn't.请帮忙细致的分析一下句子成分.

Tom's brother is a policeman.Which he isn't.
主语+系动词+表语
a policeman.Which he isn't. 应该是非限定定于从句。翻译成:他不是(他哥哥不是警察)
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这就是一个简单的定语从句啊,虽然句意表达有点不通顺。这里如果把which改为while 就更好了。

tom‘s brother 主语
is 系动词
a policeman 表语.
which前面应该是 逗号,which小写.
which指代的 是 a policeman
做后面 isn't的表语,
引导定语从句提前,
he 主语,
isn't系动词.