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1、Noun clauses as the subject第1页/共33页4.To find your way can be a problem.What does the underlined part serve as in each sentence?3.Smoking is bad for you.2.You are a student.5.“How do you do?”is a greeting.subject1.Beijing is our capital.第2页/共33页 主语从句主语从句 (Subject Clause)在复合句中充当主语的从句在复合句中充当主语的从句就是就是主语
2、从句主语从句。第3页/共33页That he will succeed is certain.Whether he will come makes no difference.What we need is more time.找出主语从句思考：主语从句有哪些引导词，这些引导词如何选用？思考：主语从句有哪些引导词，这些引导词如何选用？第4页/共33页That he will come is certain.Whether he will come is uncertain.引导词引导词1)从属连词that和whether：_不做成分，无意义，不能省略。whether whether 不做成分，
3、表“_”_”。thatthat是否第5页/共33页Who will go makes no difference.What we need is more time.Which book I shall choose hasnt been decided.2)连接代词who,what,which,whom，whose引导词引导词第6页/共33页Whoever comes is welcome.Whatever I have is yours.连接代词whoever,whomever,whatever,whichever引导词引导词第7页/共33页When we will leave hasnt
4、 been decided.How she keeps healthy is a secret.Why he cries is not clear.Where the meeting will be held is not known.3)连接副词when,where,how,why引导词引导词第8页/共33页It is certain that he will win the match.That he will win the match is certain.注解：一般来说主语从句都是放在注解：一般来说主语从句都是放在 ,但有时为了使句子但有时为了使句子 ,避免避免”头重脚轻头重脚轻”,
5、常用常用 作作 ，从而把主语从句放在，从而把主语从句放在 句首句首保持平衡保持平衡 it 形式主语形式主语后面后面第9页/共33页这样就构成了下面一些常用句型:1)It is+n.+that It is a pity that.可惜的是 It is a surprise that 令人吃惊的是 It is a fact that 事实是 It is common knowledge that 是常识 *_(很可惜)we lost the match.*_(这是事实)he cheated in the exam.It is a pity thatIt is a fact that第10页/共33
6、页2)It is+adj.+that It is certain that 肯定 It is possible/likely that.很可能 It is obvious/clear that 很明显 It is true that的确 It is necessary important natural.that*_(很可能)she will come back tomorrow.*_(很明显)he is an English.+(should)+doIt is possible thatIt is obvious that第11页/共33页3)It+不及物动词+that It happene
7、d that.碰巧 It occurred to me that我突然想起 It appears/seems that 似乎，好像 It turned out that 原来*_(碰巧)I was out yesterday.*_(我突然想起)I forgot to send the letter.It happened thatIt occurred to me that第12页/共33页4)It+be+过去分词+从句 It is said that.据说 It is known to all that.众所周知 It is reported that.据报道 It is believed
8、that.据相信;人们相信 It is suggested that+(should）do.建议*_(据报道)20 people were killed in the accident.*_(建议)we should eat more vegetable and do more exercise.It is reported thatIt is suggested that第13页/共33页第14页/共33页例1.When will he come is not known.规律一、规律一、主语从句一律用陈述语序，主语从句一律用陈述语序，即主语在前，谓语在后。即主语在前，谓语在后。正：When
9、 he will come is not known.第15页/共33页例2.He will not come to the meeting this evening is true.正：That he will not come to the meeting this evening is true.规律二、规律二、连词连词that 在从句中无实际意义，在从句中无实际意义，但不能省略。但不能省略。第16页/共33页例3.If the meeting will be put off has not been decided yet.正：Whether the meeting will be p
10、ut off has not been decided yet.规律三、whether 可以引导主语从句，放在句首，但if不能第17页/共33页例4.When he will come are a puzzle.正：When he will come is a puzzle.规律四、规律四、主语从句的谓语动词多用主语从句的谓语动词多用 单数第三人称形式。单数第三人称形式。第18页/共33页When the meeting will begin _(have)not been decided yet.hasWhen they will start and where they will go _
11、(be)still unknown.When and where the meeting will begin _(have)not been decided yet.arehas第19页/共33页例5 1.What he needs _ that book.2.What he needs _some books.规律五、规律五、what 引导的主语从句，可根据引导的主语从句，可根据 表语决定主句动词的单复数形式表语决定主句动词的单复数形式。isare第20页/共33页第21页/共33页talk aboutthe use of cell phone they are talking about
12、 is the use of cell phone.WhatWhat第22页/共33页gounknownhe he is going is unknown.WhereWhere第23页/共33页importantnot have a stupid teammateIt is important that we should not have a stupid teammate.第24页/共33页How Du Lala becomes successful depends on her hard work.杜拉拉如何成功取决于她的勤奋。第25页/共33页Whoever sees the girl
13、 is attracted by her.任何见到这个女孩的人都被她吸引。第26页/共33页第27页/共33页一篇作文，在适当的地方恰当地放置一两个从句，不仅会让作文更耐读，而且作文分值会有所提高。高考英语作文评分标准第五档(很好)；(21-25分)1.完全完成了试题规定的任务。2.覆盖所有内容要点。3.应用了较多的语法结构和词汇。4.语法结构或词汇方面有些许错误，但为尽力使用较复杂结构或较高级词汇所致；具备较强的语言运用能力。5.有效地使用了语句间的连接成分，使全文结构紧凑。6.完全达到了预期的写作目的。第28页/共33页改写句子：Clearly,English is more and mo
14、re important.It is clear that English is more and more important.第29页/共33页What do you think of grammar learning?How can you learn grammar well?In my opinion,it is very important _(我学好语法我学好语法)because it can help me with my writing and my sentence structure._ is known to all that grammar is really a b
15、ridge to success.Believe it or not,it doesnt matter _ we can recite all those grammar rules._ we need to do is try to understand and use the language.that I should learn that I should learn grammar wellgrammar wellIt ItwhetherwhetherWhat What 第30页/共33页 1.Review noun clauses as the object,predicative and subject.2.Finish the exercises in“Discovering useful structures”.Homework第31页/共33页第32页/共33页感谢您的观看。第33页/共33页