高一英语主语从句课件人教版新课标必修1

课件13张PPT。Subject Clauses 主语从句1. 主语从句：从句在句中充当主语成分1). That he will succeed is certain .
Whether he will go there is not known .
3) How we can help the twins will be discussed at the meeting.
1．??引导主语从句的连接词有三类：
(1)????连词that、 whether ?：
Whether we go by train or by boat makes no difference.
Whether?he’ll?come?here?isn’t?clear.??
That price will go up is certain.What?she?did?is?not?yet?known.
Who will write the poem has not been decided yet.
Whatever he did is right.
(2)???连接代词who,?whom,?whose,?what,?which,?whoever,?whatever,?whichever等3)????连接副词?where,?when,?how,?why等。
How?this?happened?is?not?clear?to?anyone.?When he will be back depends on the weather.
How the pyramids were built is still a mystery.主语从句后置!
为了避免主语冗长,句子头重脚轻,经常用it作形式主语,主语从句放在后面作真正的主语.
例:
That we shall be late is certain.
-- It’s certain that we shall be late.
1. That the earth is round is known to all.
--
2. That you missed the chance is a pity.
-- It is a pity that you missed the chance.It’s known to all that the earth is round.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.?
?
B.??????It+be+名词词组(no?wonder,?an?honour,?a?good?thing,?a?pity,?no?surprise,?etc.)+that从句。如：
It’s?a?pity?that?we?can’t?go.??2. 用it 作形式主语的结构C.????????It+be+过去分词(said,?reported,?thought,?expected,?decided,?announced,?arranged,?etc.)+that从句。如：
It?is?said?that?Mr.?Green?has?arrived?in?Beijing.?
D.?????It+seem,?happen等不及物动词及短语+that从句。如：
It?happened?that?I?was?out?that?day.?
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.?
注 意：What you left are only several old books.
What you said is of great importance.
Whether?he’ll?come?here?is not?clear.?
1.“if” 不能引导主语从句，应有“whether”引导。3.主语从句的 “that” 一般不能省。4.“what”引导主语从句时，谓语动词：
1）常与其后的名词作表语一致 2）根据句子的语境而定。4. 主语从句需注意的问题2.主语从句中用陈述语序1.Where shall we spend the holiday isn’t decided.2.You have made a mistake is a fact.3.That is certain that we can win.4.No matter who leaves the room last ought to turn off the lights.5.If the policemen will come is not certain.we shallThat you haveIt isWhoeverwhether改错练习1. I read about it in some book or other, does it matter _______ it was? （01北京春季)
A．where B．what C．how D．which2. After Yang Liwei succeeded in circling the earth, _______ our astronauts desire to do is walk in space. （04上海）
A. where B. what
C. that D. how Fashion differs from country to country may reflect the cultural differences from one aspect.
(00上海）What B. That
C. This D. Which（D）(B)(B）___ he made an important speech at the meeting was true.
A. That B. Why C. What D. How 2. ___we’ll go camping tomorrow depends on the weather .
A If B Whether C That D Where 3.___ is known to us all is that America is a developed country____the First World.
Which; belong to b. As, belonged to
c. What; belonging to d. It; belonging to4. It’s known to us all ___ a form of energy .
A. water is B. that water is C. is water D. that water to
5. It worried her a bit ___ her hair was turning gray.
A. whether B. that C. what D. when
6.What I say and think ___ none of your business.
A. is B. are C. has D have