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that、whether。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等.
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。
由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, why，wherever，whenever，however。
___________ 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. 当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.
