定语从句主从句做表语
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定语从句主从句做表语用法
一、 that在定语从句中作表语时的省略.
关系代词作be 的表语,且先行词是特指时,关系代词通常用that(不用who或which)或省略:
He doesn't seem to be the man (that) he was ten years ago.他看起来已经不是十年前的样子了.
The modern aeroplane is not the machine (that) it was when first invented.现代飞机已不是最先发明时的那种样子了.
She was not the cheerful woman (that) she was before she married.她已经不是结婚前的那个漂亮女人了.
She is all (that) a teacher should be.她具备一个老师应该具备的所有条件.
但如果先行词是泛指时,关系代词通常用which,且不省略:
Even if John were a millionaire which he was not,he would not use a farthing of his wealth to benefit the people.即使约翰是个百万富翁,他也不会用他的一分钱去做有益于人民的事.而他并不是百万富翁.
He looked like a lawyer which he was.他像个律师,而他也的确是个律师.
二、 that在从句中作补语时.例如:
I'm not the fool(that) you thought me.我不是你以前所认为的那个傻子了.
He is the nicest teacher (that) the students consider him in their school.他就是学生认为学校中最好的那个老师.
He is not the man (that) he used to be.She is all (that) a teacher should be.
附:什么是表语
表语用来说明主语的身份、性质、品性、特征和状态的,表语常由名词、形容词、副词、介词短语、动词的ing形式、不定式、从句来充当,它常位于系动词(be, become, appear, seem,look,sound,feel,get,smell等词)之后。如果句子的表语也是由一个句子充当的,那么这个充当表语的句子就叫做表语从句。
名词作表语
Africa is a big continent.
非洲是个大洲。
That remains a puzzle to me.
那个废墟对我来说是谜一般的事物。
代词作表语
What’s your fax number?
你的传真号是多少?
Who's your best friend?
你最好的朋友是谁?
形容词作表语
I feel much better today.
我今天感觉好多了。
He is old but he is healthy。
他很老,但他很健康。
数词作表语
She was the first to learn about it.
她是第一个知道的人。
不定式或ing形式作表语
Her job is selling computers.
她的工作是销售电脑。
Our next step was to get raw materials ready.
我们下一步是把原料准备好。
作表语的不定式短语通常是说明主语的.内容,这时主语通常是如下名词:
hope, idea, job, plan, wish, aim, purpose, thing, business
The purpose of new technologies is to make life easier, not to make it more difficult.
新技术的目的是使生活更便利,而不是更繁琐。
Her wish is to become a singer.
她的愿望是当一名歌手。
Our plan is to finish the work in two weeks.
我们的计划就是在两星期内完成这项工作。
介词短语作表语
The patient is out of danger.
病人脱险了。
I don’t feel at ease.
我感到不自在。
注意事项:
著名学者周海中教授曾经指出:作为表语时,英语介词可以表示正在“进行”的动作。例如:
He is at work..
他正在工作。
The house is on fire!
房子着火了!
The road is under construction.
路正在修。
副词作表语
The sun is up.
太阳升起来了。
I must be off now.
现在我得走了。
从句作表语
This is what he said.
这就是他所说的话。
非谓语单词作remain的表语。
(1);remain作“仍需去做(或说、处理)”讲时,后面加“to be done”作表语。
例: One problem remains to be solved。
有一个问题尚待解决。
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