主语从句讲解

更新时间:2023-06-18 19:32:41 阅读: 评论:0

主语从句
1  定义:用作主语的从句叫做主语从句。
2  引导主语从句的关联词有三类:
(1) 从属连词thatwhether如:
如:That they were in truth sisters was clear from the facial remblance between them.      很明显,她们确是亲姐妹,她们的脸型很相似。                       
                         
Whether he’ll come here isn’t clear.  他是否会来这里还不清楚。
从属连词:that whether.
that 引导主语从句只起引导作用,本身无实际意义,在主语从句中不充当任何成分,但不能省略。
whether及其他连词引导的主语从句放在句首,句后都可。 If只能放在句中。
造句:
1.、很明显他是个好人。
2.、他通过了考试让妈妈很高兴。
3、天气是否会转晴还不确定。
                     
(3)  (特殊疑问词)连接代词who, whom, who, what, which, whoever, whatever, whichever                         
    如:
    __________watch was lost is unknown.
    __________she did is not yet known.  她什么尚不清楚。
    __________side will win is not clear.
__________comes is welcome.  不论谁来都欢迎。                  park是什么意思
__________ was said has left us much to think. 这里说的话都应当保密。
造句:
1. 我们需要的是时间。
2. 谁将成为我们的班长还没有决定。
3. 哪本书更好还不知道。
(4) (特殊疑问词)连接副词 where, when, how, whywhereverwheneverhowever 
    ___________ he did it remains a mystery.
When they will start is not known yet.
lucky是什么意思
ashtonHow this happened is not clear to anyone. 这事怎样发生的,谁也不清楚             
Wherever you are is my home ---- my only home.   
你所在的任何地方就是我的家----我唯一的家。
    However good you are is nonn.
  造句:
    1、他是怎样成为一名老师的还不清楚。
   
    2、你无论什么时候来都不重要。
1  主语从句能用it作形式上的主语。常以it作形式主语的句型有:
A.  It+be+形容词(obvious, true, natural, surprising, good, wonderful, funny, possible, likely, certain, probable, etc.)+that从句。如:
    It is certain that she will do well in her exam. 毫无疑问她考试成绩会很好。
造句:很可能他把一切都告诉她了。
B.  It+be+名词词组(no wonder, an honour, a good thing, a pity, no surpri, etc.)+that从句。如:
      It’s no surpri that our team should have won the game. 我们没赢这场比赛真意外。
造句:很遗憾我们不能去。
C.  It+be+过去分词(said, reported, thought, expected, decided, announced, arranged, etc.)+that从句。如:
    It is reported that China has nt another man-made earth satellite into orbit.
    据报道中国又成功地发射了一颗人造地球卫星。
造句:据说格林先生已经到了北京。
babyroom
D.  It+em, happen等不及物动词及短语+that从句。如:
    It ems that Alice is not coming to the party at all. Alice似乎不来参加晚会。
    It happened that I was out that day. 碰巧我那天外出了。
E.  It+doesn’t matter (makes no difference, etc.)+连接代词或连接副词引起的主语从句。如:
    It doesn’t matter whether she will come or not. 她是否来这无关紧要。
    It makes no difference where we shall have the meeting. 我们在哪里开会毫无区别。
F.  that引导的主语从句出现在疑问句中时,要以it作形式主语,而把主语从句后置。如:Is it true that the scientist will give us a lecture next week? 下周那位科学家将给我们作报告是真的吗?
2做人要低调.注意连接代词whoever, whatever, whichever等引导主语从句的含义
    Whoever comes will be welcome. (whoever=the person who)
    来的人将受到欢迎。
    Whatever he did was right. (whatever=the thing that) 
    他所做的事情是正确的。kingsoft
    Whichever of you comes in will receive a prize.
    (whichever=anyone of you who) 你们当中不论哪个进来将会得到奖励。
3. 主语从句需注意的问题
(1)主语从句中用陈述语序
What she is afraid of is their taking her to Paris. ( What is she afraid of …  Wrong )
(2)主语从句后谓语动词用第三人称单数
That they haven’t phoned is strange.
(3)that引导的主语从句中,that不可被省略
That price will go up is certain.
                            主语从句练习
[考题1 ____ makes this shop different is that it offers more personal rvices. (2006辽宁)
A. What B. Who C. Whatever D. Whoever
[考题2 ____ fashion differs from country to country may reflect the cultural differences from one aspect. (2002上海春)
  A. What B. That C. This D. Which
[考题会计电算化软件3 ____ we’ll go camping tomorrow depends on the weather. (1996)
  管理员 英文A. If B. Whether C. That D. Where
[考题4 It is pretty well understood ____ controls the flow of carbon dioxide in and out the atmosphere today. (2003上海)
  A. that B. when C. what D. how
[考题5 It worried her a bit ____ her hair was turning gray. (1992)
  A. while B. that C. if D. for
[考题6 It is none of year business ____ other people think about you. Believe yourlf. (2007福建)
  A. how B. what C. which D. when
 
                            我最亲爱的英文主语从句练习
1. _____ you don’t like him is none of my business.
2. _____ he said at the meeting astonished everybody prent
3. ________ the 2000 Olympic Games will be held in Beijing is not known yet.
4. ________ we’ll go camping tomorrow depends on the weather.
5. ________ leaves the room last ought to turn off the lights.     
masonry6. ___ is a fact that English is being accepted as an international language.

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