英语表语从句讲解及练习23823752.doc
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表语从句
HYPERLINK /view/111752.htm \t _blank 表语从句
一、定义:
1.表语从句就是用一个句子作为表语。说明主语是什么或者怎么样,由名词、形容词或相当于名词或形容词的词或短语充当,和连系动词一起构成谓语。
Eg:The problem is puzzling. 这问题令人困惑
主语 连系动词 形容词作表语
The problem is when we can get a pay rise. 问题是什么时候我们可以得到加薪.
主语 连系动词 一个句子作表语---表语从句
2.连接表语从句的连接词有:that, what, who, when, where, which, why, whether,how.
He has become a teacher. 他已经成为一名教师。
He has become what he wanted to be ten years ago. 他已经成为了他10年前想成为的。
She has remained there for an hour. 她曾在那里停留了一个小时。
She has remained where I stood yesterday for an hour. 她一直在我昨天站的地方站了一个小时。
why he cried yesterday. 昨天他为什么哭。
how I can persuade her to join us in the party. 我怎么能说服她加入我们的派对。
whether the enemy is marching towards us. 是否敌人正向我们行进.
二 注意:
1.表语从句一定要用陈述语序。
False: The question is when can he arrive at the hotel.
Right: The question is when he can arrive at the hotel.
2.不可以用if,而用whether 连接表语从句(as if 例外)。
引导 HYPERLINK /view/343.htm \t _blank 宾语从句时可以互换if/whether 位于介词后要用whether ,位于句首时要用whether
引导表语从句, HYPERLINK /view/100914.htm \t _blank 主语从句, HYPERLINK /view/179.htm \t _blank 同位语从句时要用whether
False: The question is if the enemy is marching towards us.
Right: The question is whether the enemy is marching towards us.
Right: It looked as if he had understood this question.
3.不像宾语从句,在有表语从句的 HYPERLINK /view/137894.htm \t _blank 复合句中,主句时态和从句时态可以不一致。
Right: The question is who will travel with me to Beijing tomorrow.
Right: The question is why he cried yesterday.
4.that在表语从句中不可以省掉。
表语从句的基本用法:
表语从句只能置于主句之后,而主句的动词只能是联系动词。
HYPERLINK /view/414544.htm \t _blank 名词性从句在be等系动词后作表语时被称为表语从句.
例如: The problem is how we can get the things we need. (how 在表语从句中充当方式状语)
问题是我们怎样能弄到我们需要的东西。
The scissors are not what I need. (what 在表语从句中充当宾语)
这把剪刀不是我所需要的。
What I told him was that I would find him a good play.
我告诉他的是我会给他找个好剧本。(what在主语从句中作直接宾语, that作为表语从句的引导词在该表语从句中不充当句子成分, 不能省略)
That is why she failed to pass the exam. (why 在表语从句中充当原因状语)
那就是她考试不及格的原因。
注意: “Tha
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