初中英语词汇语法第四十九讲 表语从句
文章来源: 文章作者: 发布时间:2007-04-02 01:05 字体: [ ]  进入论坛
(单词翻译:双击或拖选)

一、表语从句的定义:
表语从句放在连系动词之后,充当复合句中的表语。

二、表语从句的构成:
关联词+简单句

三、引导表语从句的关联词的种类:
1. 可接表语从句的连系动词有be, look, seem, sound, appear等
China is no longer what she used1 to be.
今日的中国不再是过去的中国了。
The question remains2 whether they will be able to help us.
问题还是他们能否帮我们。
At that time, it seemed as if I couldn't think of the right word.
当时,我似乎怎么也想不出一个恰当的字眼来。
2. 从属连词whether, as, as if / though引导的表语从句
He looked just as he had looked ten years before.
他看起来还与十年前一样。
It sounds as if someone is knocking at the door.
听起来好像有人在敲门。

3. because, why引导的表语从句
That's because he didn't understand me.
那是因为他没有理解我。 (That's because...强调原因)
That's why he got angry with me.
那正是他对我生气的原因。 (That's why...强调结果)
what引导的主语从句表示结果或名词reason作主语时,后面的表语从句表示原因时要用that引导,不宜用because。
The reason why I was sad was that he didn't understand me.
我难过的原因是他没有理解我。
4. 连接代词who, whom, whose, what, which, whoever3, whatever, whichever4
连接副词 where, when, how, why。
如:
The problem is who we can get to replace5 her.
问题是我们能找到谁去替换她呢。
The question is how he did it. 
问题是他是如何做此事的。
That was what she did this morning on reaching the attic6.
那就是她今晨上了阁楼干的。
5. 从属连词that。如:
The trouble is that I have lost his address. 
麻烦是我把他的地址丢了。
6. 使用虚拟语气的表语从句
在表示建议、劝告、命令含义的名词后的表语从句,谓语动词需用"should+动词原形" 表示,should可省略。常见的词有:advice, suggestion, order, proposal7, plan, idea等。 
My suggestion is that we (should) start early tomorrow.
我的建议是我们明天一早就出发。

 

四、应注意的问题:
1. 连系动词be,appear,seem,look等之后可以跟表语从句。
It was because he didn't pass the exam.
那是因为他没有通过考试。
It seems(that)he was late for the train.
看来他没搭上火车。
It appears that she was wrong.
看来她错了。
It seems to me that we should answer for this.
在我看来,我们似乎应该对此事负责。
It appears to her that he wants to teach us all he has.
在她看来,他似乎要把他所会的都教给我们。
2. 引导表语从句的引导词有以下几类。
1)wh-疑问词
My question is who left.
我想问的是谁离开了。
What I wonder is when he left.
我想知道他是何时离开的。
That's what he wants.
那是他想要的。
This is where they once lived.
这就是他们曾经住过的地方。
That is why he didn't come here. 这就是他为何没到这儿来的原因。
2)whether
My question is whether he left(or not). 我的问题是他是否离开了。
注:if不能引导表语从句。
3)that
The fact is that he left. 事实是他离开了。
注:引导表语从句的连词that间或可以省略。
The truth is(that)I didn't go there. 事实是我没去那儿。
4)because,as,as if,as though
It's just because he doesn't know her. 这是仅仅因为他不认识她。
Things are not always as they seem to be. 事物并不总是如其表象。
He looks as if he's tired. 他好像累了。



点击收听单词发音收听单词发音  

1 used ajBwV     
adj.用旧了的,旧的;习惯于…;过去惯/经常
参考例句:
  • I used to work until nearly 6:00 o'clock each day.我过去常常工作到6:00左右。
  • He used to walk anywhere from two to five miles an hour.他过去经常一小时走二至五英里。
2 remains 1kMzTy     
n.剩余物,残留物;遗体,遗迹
参考例句:
  • He ate the remains of food hungrily.他狼吞虎咽地吃剩余的食物。
  • The remains of the meal were fed to the dog.残羹剩饭喂狗了。
3 whoever 9gQwK     
pron.无论谁,不管谁;任何人
参考例句:
  • I'll find the person who did this,whoever he is.我要找出干这件事的人,不管他是谁。
  • Whoever does best will get the prize.谁做得最出色谁就得奖。
4 whichever sgCwE     
pron.无论哪个,无论哪些;adj.(究竟)哪个,哪些
参考例句:
  • Whichever day you come,we will be pleased to see you.无论你哪一天来,我们都很高兴。
  • Choose whichever of them you like best.选一个你最喜欢的吧。
5 replace TV9xL     
vt.替换;取代;把…放回原处;归还,赔还
参考例句:
  • Please replace after reading.阅毕请放回原处。
  • The sound of cars will replace the sound of birds.轿车的声音会代替鸟的声音
6 attic Hv4zZ     
n.顶楼,屋顶室
参考例句:
  • Leakiness in the roof caused a damp attic.屋漏使顶楼潮湿。
  • What's to be done with all this stuff in the attic?顶楼上的材料怎么处理?
7 proposal v0uzq     
n.提议,建议;求婚
参考例句:
  • I feel that we ought to accept his proposal.我觉得我们应该接受他的建议。
  • They could not gain over anyone to support their proposal.他们无法争取到支持他们建议的人。
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