英语语法 - 主语从句

[ 主语从句 ] 没有时态要求 | 三单

1. 从属连词 that 引导的主语从句 | 不做句子成分 | 没有意义

        That a monster attacked a ship last week shocked the world.

        That I bought a house in Beijing shocks many people.

        That Oscar is rich makes us upset.

        That he didn't want to come is obvious.

        That I love you is true.

        That he loves you is known to all.

形式主语

        It is natural that every one has different views about the world.

        It is strange that she knows nothing about the news.

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2. whether if 引导的主语从句 | 不做句子成分 | 翻译成是否

        Whether Jeff understands me is obvious.

        Jeff 是否理解我是显而易见的。

注意：if 引导的主语从句，只能用形式主语

       It has not been known If you are listening to me carefully

        还不知道你是否在认真听我说话

        It is doubtful if Oscar is rich.

        Oscar是否富有值得怀疑

        It is not decided whether we will continue our course.

        我们是否继续上课还没有决定

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3. 连接副词 when、where、why、how(如何)引导的主语从句 | 在主语从句中做状语 | 有实际意义

[ when 什么时候 ]

注意：when引导的主语从句，一般过去时 | 一般将来时态

        When you will get married in Anhui is a secret.

        你什么时候在安徽结婚是个秘密

        When the little cat came here is a puzzle.

        小猫什么时候来的是个谜

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