Unit 5 Working the land 主语从句（ppt课件） -2022新人教版（2019）《高中英语》选择性必修第一册.pptx

1、Unit 5 Discovering Useful Structures语法来啦 他们要去和人打架。他们要去和人打架，但是我不知道为什么。我想知道他们要去和谁打架。lead-inI wonder whom they are going to have a fight with.They are going to have a fight with someone,but I dont know why.They are going to have a fight with someone.英语句子三大分类1.简单句 2.并列复合句（并列句/复合句）3.主从复合句（复合句/复杂句）简单句：S V

2、 =1 无法拆分并列并列句：S V 2且由并列连词连接 不分主次主从复合句：S V 2且由从属连词连接 主句+从句从属连词：that,which,what,when,where,why,how,whether,if,because,since,although,whatever,however.并列连词：并列连词主要是用来表示并列关系、转折关系、选择关系、因果推理关系等。and,but,or,so,both.and,as well as,neither.nor由引导词引导，在复合句中起名词作用的从句叫名词性从句（Noun clause）。它在复合句中能担任主语、宾语、表语、同位语成分。因此，根

3、据它在句中有不同的语法功能，名词性从句又可分别称为主语从句、宾语从句、表语从句、同位语从句。定义找出下列句子中的主语1.A tree has fallen across the road.2.You are a student.3.To find your way can be a problem.4.Smoking is bad for you.5.That we shall be late is certain.6.It is certain that we shall be late.名词名词充当主语充当主语动名词动名词充当主语充当主语不定式不定式充当主语充当主语人称代词人称代词充当主语

4、充当主语句子句子充当主语充当主语itit充当主语充当主语What I can see is.What can you see in the picture?What I can see is a face of an elderly woman.What I can see is a sight of a beautiful girls back.什么是主语从句?位 置:主句谓语 或 系动词之前作 用:在主从复合句中充当主语在主从复合句中，充当主语的从句是主语从句(Subject Clause)。它是名词性从句之一，使用陈述句语序。引导的连接词有从属连词、连接代词和连接副词。01及其句法功能从

5、属连词从属连词(不作成分）不作成分）连接代词连接代词（作主作主,宾宾,表表,定语定语）连接副词连接副词（作状语）（作状语）what,who,whom,which,whose,wh+everhow,when,where,whythat(无意义无意义),whether/if主语从句的连接词分类“缺什么补什么”原则缺主语，指人用_，指物用_缺宾语，指人用_，指物用_缺时间状语用_；地点状语用_；原因状语用_；方式状语用_；定语用_；什么都不缺用_，缺“是否”_whowhatwho/whomwhatwhenwherewhyhowwhich/whose主语从句的连接词thatwhether/if用法归纳

6、用法归纳引导主语从句，只起引导作用，在主语从句中不充当任何成分。例：1.That price will go up is certain.2.Whether we go by train or by boat makes no difference.3.It doesnt matter whether/if he will come or not.1.从属连词：that、whether、if【即时演练】1.It doesnt matter _ he will come or not.2._ well go camping tomorrow depends on the weather.3.It

7、 was doubtful _ Tom really saw Sharon.4._ Tom really saw Sharon was doubtful.5.补全句子：_ made us very happy.她能来帮助我们使我们很高兴。_doesnt matter too much.她来不来都没关系。whether/ifwhetherwhether/ifWhetherThat she could come to help usWhether she is coming or not在句中不仅起连接词的作用，并充当句中的主语、宾语、表语或定语。2.连接代词:who、whom、whose、wha

8、t、which、whenever、whatever、whoever、whichever例：1.What we dont have always attracts us.2.Who will be the president is still unknown.3.Whenever you come is welcomed.4.Ill take whoever wants to go.用法归纳用法归纳*who引导的主语从句表示一件“事情”，而whoever引导的主语从句指“人”。我最喜欢的是你的发型。我最喜欢的是你的发型。_ I like most is your hairstyle.What【即

9、时演练】1、谁将赢得比赛还不知道。Who will win the match is not sure.2、我需要的就是休息。What I need is rest.3、_ you lack is self-confidence.What4、_ more and more students go to universities is true.That【即时演练】what和that如何选用？引导名词性从句时不仅起连接词的作用，也在句中作状语。例：1.When well start tomorrow will be told soon.2.Why he came here is not know

10、n.3.How this happened is not clear to anyone.3.连接副词：when、where、how、why用法归纳用法归纳Whowhether/if When that【用适当的连接词填空。用适当的连接词填空。】(1)_ will be sent to carry out the task hasnt been settled.(2)It doesnt matter _ it turns out to be a good idea or a bad idea.(3)_ John will arrive is unknown.(4)Its possible _

11、he hasnt received the letter.02 为了避免主语冗长，句子头重脚轻。经常用 it 作形式主语。例：That the earth is round is known to all.=It is known to all that the earth is round.用法归纳用法归纳clear,obvious,likely,probable,true句型一形容词1.It+be+形容词+主语从句 做.是.的例：1.It was surprising that she passed the difficult exam.2.It is not clear whether

12、he told a lie.句型精讲句型精讲 此句型中的形容词是important,necessary等时，从句应该使用虚拟语气。例：It is important that we(should)learn English well.said,reported,believed,thought,announced句型二过去分词2.It+be+过去分词+主语从句 据.例：It is said that they are identical twins.It is reported that a big earthquake hit the area.句型精讲句型精讲 如果过去分词是suggest

13、ed,ordered,required,advised,requested等表示建议、要求、命令等词时，从句应该使用虚拟语气。例：It is suggested that students(should)make their bed by themselves.a pity，an honor，a good idea，a fact,a/no surprise，no wonder.句型三名词3.It+be+名词+主语从句 做.是.的例：It is a pity that he missed such an interesting film,It is good news that he has r

14、ecovered.句型精讲句型精讲seem,happen,appear,look,occur,turn out 句型四不及物动词4.It+不及物动词+主语从句例：It happened that they were out that day.碰巧那天他们不在家。It seems that it is going to rain.看起来要下雨了。句型精讲句型精讲worry,shock 句型五及物动词5.It+及物动词+宾语+主语从句例：It shocks me that he failed in this exam.他没通过考试，震惊到我了。句型精讲句型精讲【即时演练】1._is a fact

15、that English is being accepted as an international language.2.It is uncertain _ he can come to Jennys birthday party or not.3._ he made an important speech at the meeting was true.4._ is known to us all that America is a developed country.5.Every year,_ makes the most beautiful kite will win a prize

16、 in the Kite Festival.6.Your support is important to our work._ you can do helps.ItwhetherThatItwhoeverwhatever1._(可能)she will come back tomorrow.2._(很明显)this measure is effective.3._(很遗憾)we lost the match.4._(这是事实)he cheated in the exam.5._(据报道)20 people were killed in the accident.6._(建议)we should

17、 eat more vegetable and do more exercise.7._(碰巧)I came into the office at that time.8._(我突然想起)I forget tosend the letter.It is possible thatIt is obvious thatIt is a pity thatIt is a fact thatIt is reported thatIt is suggested thatIt happened thatIt occurred to me that【即时演练】03主语从句 主谓一致 问题1.Whether t

18、he patient will be taken _ unknown.2.When and where the patient will be taken _ unknown.3.When the task can be finished and whether he can have a rest _ unknown.4.What he wants most _ staying with his family.What they need _ masks(口罩).单个从句做主语，大多数使用_ (单数？复数？)由两个连接词引导同一个主从，谓动使用_(单数？复数？)主语为and连接的两个主从时，

19、谓动使用_(单数？复数？)what在主从中做宾语时，谓语的单复数取决它后面的_。单数单数复数isisareis are表语主语从句的语序找出下列句子中的错误，并总结规律主语从句一律用_，即主语在前，谓语在后。正：When he will come is not known.:When will he come is not known.How we go for a picnic should be discussed.How do we go for a picnic should be discussed.陈述语序一.单项选择。1.It was he said disappointed m

20、e.A.what;that B.that;that C.what;what D.that;what2.well go camping tomorrow depends on the weather.A.If B.Whether C.That D.Where3.he said at the meeting surprised everybody present.A.What B.That C.Which D.How4.was to return to school.A.That really interested him B.What really interested himC.Which r

21、eally interested him D.That interest him really5.makes mistakes must correct them.A.What B.That C.Whoever D.Whatever6.It has always puzzled me the old man lied a red silk ribbon on the treeA.that B.why C.where D.what7._ _ he made an important speech at the meeting was true.A.That B.Why C.What D.How8

22、.-What made her parents so angry?-_ she had failed in the examination.A.It B.Whether C.What D.That9.It worried her a bit _ _ her hair was turning gray.A.whether B.when C.what D.that10.They lost their way in the forest,and _ made matters worse was that night began to fall.A.it B.which C.that D.what二.

23、填入恰当的连词。1._ you want to go abroad is known to us.2._ surprised me most was to see so many women crying sadly there.3.I really want is the posters of the famous singer.4._ _ _ we shall attend the meeting hasnt been decided yet.5._ _ _ leaves the room last ought to turn off the lights.三.翻译句子。1.哪个学生赢还不

24、一定呢。_2.关于这件事情，无论你知道什么都要保密。_3.他们什么时候来还没有公开。_4.无论谁犯错都要纠正他们。_5.他说的和我们正在讨论的话题没有关系。_ThatWhatWhatWhetherWhoeverWhich student will win is uncertain.Whatever you know about the matter must be kept secret.When they will come hasnt been made public.Whoever makes mistakes must correct them.What he said is irrelevant to the topic we are discussing now.Homework:完成课本P53练习题。