高一英语主语从句.ppt

人教课标版 高一必修3 Unit 4,英 语 课 件,Subject Clause 主语从句,Revison 用适当的词填空，使下列宾语从句意思完整。 1. He told me _ he would go to college the next year. 2. I dont know _ there will be a bus. 3. I really dont know _ you should depend on if you dont depend on your parents. 4. He didnt tell me _ he would come back from Shanghai next time. 5. Let me know _ train youll be arriving on. 6. Can you work out _ much we will spend during the trip?,(that),if / whether,whom / who,when,which,that,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.,请观察下列句子, 找出作主语的句子及引导词以及它们在句中的作用。 1.That the earth travels round the sun is a well-known fact. 2.What is needed for a long trip is careful preparation. 3. Who will act the lead in the play has not been decided yet. 4.Whoever knows the secret mustnt tell others. 5. It is uncertain whether the artist can do it or not. 6.How this happened is not clear to anyone. 7. When he will be back depends on the weather. 8. Why he came here is a mystery.,主语从句学习指导,【归纳总结】 1. 引导主语从句的词有连词that(句1)只起连接作用，不作成分，不能省略。whether（句5）“是否”只起连接作用，不作成分，不能省略。连接代词who 作主语、宾语（句3）, whoever 作主语（句4）, what作主语、宾语（句6）, whose作定语, whom作宾语, which等。连接副词how作方式状 语（句6）, when 、whenever作时间状语 （句7）, why 作原因状语（句8） ，where、wherever 作地点状语等。 2. 有时用it作形式主语，将主语从句后置, 这样做是为了避免句子头重脚轻（句5）。,1 引导主语从句的连接词有三类： (1) 连词 whether 、that . Whether we go by train or by boat makes no difference. Whether hell come here isnt clear. That price will go up is certain.,即学即练 1. _ you dont like him is none of my business. 2. _ well go camping tomorrow depends on the weather.,That,Whether,What she did is not yet known. Who will write the poem has not been decided yet. Whose songs I will listen to is OK. Whatever he did is right.,(2) 连接代词who, whom, whose, what, which, whoever, whatever, whichever等,即学即练 1. _is going to do the job will be decided by the Party committee. 2. _ we cant get seems better than what we have. 3. _team will win the match is a matter of public concern. 4. _ leaves the room last ought to turn off the lights.,Who,What,Which,Whoever,3) 连接副词 where, when, how, why等。,When he will be back depends on the weather. How the pyramids were built is still a mystery. Why he came here is a mystery. How this happened is not clear to anyone.,即学即练 1. _ the house will be built will be discussed at tomorrows meeting. 2. _ he wont go there is clear to all of us. 3. _well finish translating the book depends on the time.,Where,Why,When,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. - Its 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.,Its 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 obvious that we can not go on like this. It is certain that she will do well in her exam. It was strange that he had made a mistake. B. It+be+名词词组+(no wonder, an honour, a good thing, a pity, no surprise, etc.)+that从句。如： Its no wonder that all of us want to go there Its a pity that we cant 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. It seems that they are good friends. E. It+doesnt matter (makes no difference, etc.)+连接代词或连接副词引起的主语从句。如： It doesnt 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 hell 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 isnt 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 shall,That you have,It is,Whoever,whether,改错练习,_ 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 is that America is a developed country_the First World. Which; belong to b. As, belonged to c. What; belonging to d. It; belonging to,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. when 6.What I say and think _ none of your business. A. is B. are C. has D have,SUMMARY,1. 引导主语从句的词有连词that, whether；连接代词who, whose, whom, whoever, what, which等；连接副词where, when, whenever, wherever, ho