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说到主语从句,可能很多同学觉得比较难,
甚至很难分辨出来什么是主语从句,
其实很简单;用一句话简单点说就是,
当一个从句整体在主句中充当的是主语的时候,
那么这个从句就是主语从句;
那么接下来,
咱们就具体来谈谈关于主语从句有哪些需要注意的知识点
......
定
义
主语从句,即在复合句中当主语成分的句子,例如"That he finished writing the composition in such a short time surprised us all",他在很短的时间内写完作文让我们都很惊讶,此复合句主要描述的是某事让我们惊讶,某事就是该复合句的主语,因此“That he finished writing the composition in such a short time”便是该复合句的主语从句。
定义说完了 ,那我们就来看看关于主语从句中的几个常用连词用法和例句:
1、由连词that引导的主语从句。 that 在从句中不做成分且不能省略
例如:
That you will win the medal seems unlikely. 你想获得奖牌看起来是不可能的。
That you are so indifferent bothers me. 你如此冷淡使我很烦恼。
That she survived the accident is a miracle. 她在事故中幸免于难简直是奇迹。
2、用连接副词whether, when等引导的主语从句
例如:
Whether she is coming or not doesn’t matter too much. 她来不来都无关紧要。
When he comes has not been decided yet.
3、用关系代词what等引导的主语从句
例如:
What you need is more practice. 你所需要的是更多的训练。
What I want to know is this. 我想知道的就是这事。
Whatever we do is to serve the people. 我们无论做什么都是为人民服务。
4、语从句可以直接放在主语位置上,也可以用it作形式主语,而将从句放在句末(尤其是当谓语较短时)
例如:
That light travels in straight lines is known to all. 光沿直线传播,这是众所周知的事。 =It is known to all that light travels in straight lines. 众所周知光沿直线传播。
When the plane is to take off has not been announced . 飞机何时起飞还没有宣布。 = It has not been announced when the plane is to take off. 还没有宣布飞机何时起飞。
那么,下面请同学们再来做一道 SAT语法中关于主语从句的题目:
That these skills are transferable across professions which makes them especially beneficial to twenty-first-century students.
A) NO CHANGE
B) that
C) and
D) DELETE the underlined portion.
本题答案选D ;原因是因为这里的that引导的就是一个主语从句,在这里that 引导的是一件事做主语要看作单数,谓语动词就是单数makes。
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