主语从句讲解课件

GrammarGrammar-名名词性从句包括：性从句包括：宾语从句：介从句：介宾结构；构；动宾结构构表表语从句：系表从句：系表结构构(系系动词后面跟一个从句后面跟一个从句)主主语从句从句:一个句子做主一个句子做主语同位同位语从句：从句：对名名词进行解行解释说明明-判断下列从句：判断下列从句：1.China is no longer what she used to be.2.The question remains whether they will be able to help us.3.It seemed as if I couldnt think of the right word.4.The reason why I study hard is that I want to go to a key university.5.They believe in that she must still be single.6.I know nothing about him except that he is living in Beijing7.I dont know whether hes free or not.8.Mary asked whether I was doing my homework or not.9.Im thinking of whether we should go fishing.10.We are worried about whether it will rain tomorrow.表表语从句从句宾语从句从句-(1).连接接词：that 在句子中不充当任何成分，无意在句子中不充当任何成分，无意义，不可省略不可省略That he will win is certain.That he got the first prize made his parents very happy.That China has become strong is certain.That they love each other is obvious.That he played computer games into night made his parents disappointed.-(2).连接接词 whether 在句中不充当成分，意在句中不充当成分，意为“是否是否”Whether we go by train or by boat makes no difference.Whether life exists on other planets is not clear.Whether hell come here isnt clear.Whether the old bus station should be replaced with a modern hotel or not is under discussion.-(3).连接副接副词 when(时间),where(哪里哪里),why(为什么什么),how(怎么；如何怎么；如何)有有词义，在从句中担任状，在从句中担任状语。Why Chen Lin committed suicide has not been clear yet.How this happened is not clear to anyone.Where he found the treasure remains a mystery.When we will hold the graduation ceremony has not been decided yet.When they will leave is not decided.-(4).连接代接代词：who(谁，主格，主格);whom(谁；宾格格);whose(谁的的);what(什么什么事事/话);which(哪一个哪一个);whoever(无无论谁),whatever(无无论什么什么),whichever(无无论哪一个哪一个)在句子中担任主在句子中担任主语，宾语，表，表语或定或定语Who will host the meeting hasnt been decided yet.Which plan is better should be discussed.Whoever comes to China is welcome.Whatever you do in your spare time should do no harm to others.Whoever breaks the law will be punished.-主主语从句能用从句能用it做做形式上的主形式上的主语(二二)-注意注意:由由that 引引导的主的主语从句有从句有时为了使句子了使句子结构平衡构平衡,避免避免“头重脚重脚轻”,常用常用 it 作作形式主形式主语,而把从句放在而把从句放在后面。后面。例如例如:1.That he will refuse this piece of advice is impossible._ _2.That they should like each other is natural._*it为形式主形式主语It is natural that they should like each other.It is impossible that he will refuse this piece of advice.-这样就构成了下面一些常用句型就构成了下面一些常用句型:1)It is+n.+从句从句 It is a pity/shame that.遗憾的是憾的是 It is a surprise that令人惊奇的是令人惊奇的是 It is a fact that 是事是事实 It is common knowledge that 是常是常识*_(很很遗憾憾)we lost the match.*_(这是事是事实)he cheated in the exam.It is a pity thatIt is a fact that-2)It is+adj.+从句从句 Its certain that 肯定肯定 It is possible that.很可能很可能 It is unlikely that.不可能不可能 It is obvious that 很明很明显 It is necessary important natural.that*_(很可能很可能)she will come back tomorrow.*_(很明很明显)this measure is effective.+(should)+doIt is possible thatIt is obvious that-3)It+be+过去分去分词+从句从句 It is said that.据据说 It is known to all that.众所周知众所周知 It is reported that.据据报道道 It is believed that.据信据信;人人们相信相信 It is suggested that+(should）do.建建议It must be admitted that必必须承承认 It cannot be denied that 不可否不可否认 It must be pointed out that需指出的是需指出的是*_(据据报道道)20 people were killed in the accident.*_(建建议)we should eat more vegetable and do more exercise.It is reported thatIt is suggested that-4)It+不及物不及物动词+从句从句 It happened that.碰巧碰巧 It occurred to me that我突然想起我突然想起_(刚好好)I came into the office at that time._(我突然想起我突然想起)I forget to sent the letter.5)It+及物及物动词+宾语+that从句从句It worried her a bit that her hair was turning grey.It shocked me that he didnt tell anybody where he was.It happened thatIt occurred to me that-主主语从句中从句中应注意的注意的问题-(一).语序序应是是陈述句述句语序序How he managed to survive in the forest interested everyone present.When he will come is not known.What he needs is an English dictionary.(二二).谓语动词的的单复数复数When we shall hve our sports meeting _(have)not been decided yet.What I need _(be)money.What I need _(be)books.When they will start and where they will go _(have)not been decided yet.When and where the meeting will be held _(have)not been decided.hasisarehavehas-(三三)if/wheter 在主在主语从句中的用法从句中的用法If the meeting will be put off has not been decided yet.Whether the meeting will be put off has not been decided yet.注意：注意：whether 可以引可以引导主主语从句可以放在句首，从句可以放在句首，但但if不能不能-(四四).判断以下句子是否正确：判断以下句子是否正确：They should like each other is natural.That they like each other is natural.It is natural that they like each other.错误正确正确正确正确That引引导的主的主语从句放句首从句放句首，既不充当成分又无意，既不充当成分又无意义，但但that不能省去不能省去。-找出错误，并给出理由：1.Where shall we spend the holiday isnt decided.2.You have made a mistake is a fact.3.If the policeman will come is not certain.4.That is certain that we can win.we shallWhetherItThat you have-5.It is ordered we should leave at once.6.Where he comes from are a mystery.7.What whether he likes the job is not clear.8.Who he is and where he is from is important.9.What he saw is the stars in the sky.thatisxareare-Exercises:Part One:主主语从句从句单选题1.has helped to save the drowning girl is worth praising.A.Who B.The one C.Anyone D.WhoeverD2.It was he said disappointed me.A.what;that B.that;that C.what;what D.that;whatA3.well go camping tomorrow depends on the weather.A.If B.Whether C.That D.WhereB4.he said at the meeting surprised everybody present.A.What B.That C.The fact D.The matterA-5.was to return to school.A.That really interested him B.What really interested himC.Which really interested him D.That interest him reallyB6.makes mistakes must correct them.A.What B.That C.Whoever D.WhateverC7.your men have been on my land without permission.A.It seems that B.There seems to be C.That seems D.It seems forA8.It has always puzzled me the old man lied a red silk ribbon on the young tree.A.that B.why C.where D.whatB-1._ he made an important speech at the meeting was true.A.That B.Why C.What D.How 2._well go camping tomorrow depends on the weather.A If B Whether C That D Where-3.It worried her a bit _ her hair was turning gray.A.whether B.that C.what D.when4.What I say and think _ none of your business.A.is B.are C.has D have-1._ you dont like him is none of my business.2._ he said at the meeting astonished everybody present3._ the 2000 Olympic Games will be held in Beijing is not known yet.4._ well go camping tomorrow depends on the weather.5._ leaves the room last ought to turn off the lights.ThatWhatWhetherWhetherWhoever请用恰当的主用恰当的主语从句从句连词填空填空:What,it,that,whether,whoever-Correct or not?*When the meeting will be held havent been known yet.be held hasnt been known yet.Pay attention:主主语从句的从句的谓语用用单数数形式形式 10-the cat domade What the cat did made the baby cry.WhatcryMake a sentence30-1.The question is _ the film is interesting.2._ we shall attend the meeting hasnt been decided yet.用用whetherif填空填空whetherWhether10-talk aboutthe use of cell phone What they are talking about is the use of cell phone.Make a sentence30-*If we will have a meeting hasnt been decided yet.Correct or not?Whether we will.decided yet.Pay attention:放在名放在名词性从句性从句句首句首，表示，表示“是否是否”，只能用，只能用whether,不能用不能用if10-report,get the highest points,match It is reported that Yao Ming got the highest points in the match.Make a sentence30-Correct or not?Pay attention:此主此主语从句从句缺少成分缺少成分-宾语，故用作成分的故用作成分的what来引来引导，而不用，而不用that。What she wants to know is.*That she wants to know is when the party will be held.10-Correct or not?Pay attention:由由that引引导的主的主语从句放在句从句放在句首，首，that 不能省略不能省略。That he will give up*He will give up his job surprises all of us.10-Translate the sentence*_（她（她是否出席会是否出席会议）is not certain.Whether she will attend the meeting20-It makes the teacher angry that the child doesnt know the answer.teacher angryDont know the answerMake a sentence30-1._ he made an important speech at the meeting was true.A.That B.Why C.What D.How 2._well go camping tomorrow depends on the weather.A If B Whether C That D Where 3._ is known to us all that America is a developed country.A Which B As C What D It-4.Its 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.when6.What I say and think _ none of your business.A.is B.are C.has D have-