名词性从句导学案

名词性从句一、教学目标：1、理解名词性从句的概念。

2、熟练运用名词性从句，尤其在写作中能熟练使用。

3、通过运用名词性从句，学会分析复杂句式，增强学好英语的信心。

二、教学重点：区分名词性从句（主语从句、表语从句、宾语从句、同位语），以及各个从句引导词的确定。

三、教学难点：名词性从句与定语从句的区别，尤其是同位语从句与定语从句辨别。

四、教学过程：Step 1 温故互查：Task 1:欣赏下列四则笑话。

Enjoy four pieces of joke and choose the suitable sentence to complete the joke.A.that the last several minutes of a class is the longestB.the worst is that you show up and drink my poisonC.my wish that the dancers can grow taller comes trueD.what you want is a television setJoke 1Betty was a very pretty girl. Quite a lot of young men wanted to marry her.One day, one of the young men came to visit her and asked her to become his wife. She answered, "No, John, I won't marry you. I want to marry a man who is famous, who can play music, sing and dance very well, who can tell interesting stories, who does not smoke or drink , who stays at home in the evenings and who stops talking when I'm tired of listening."The young man got up, took his coat and went to the door, but before he left the house, he turned and said to Betty, "It isn't a man you're looking for. __________________. Joke 2A teacher asked one of his students:" What is the longest and what is the shortest?" The student answered immediately _______________ while the last several minutes of an exam is the shortest.Joke 3A guy had stayed sadly in a bar for more than half an hour. Then, a truck driver stepped up next to him, took the drink from the guy, and drank it all down.The poor man started crying. The truck driver said, "Come on man, I was just joking. Here, I'll buy you another drink. I just can't see a man crying.""No, it's not that. This day is the worst of my life. First, I was late getting to my office. My boss was pretty angry, and fired me. When I left the building to go to my car, I found out it was stolen. The police say they can do nothing. When I got home, I found my wife in bed with the gardener. I left home and came to this bar. And just when I was thinking about putting an end to my life, ________________."Joke 4On a girl’s way home after watching a ballet (芭蕾舞）performance, the kindergarten teacher asked her students what they thought of it. The smallest girl in the class said :“If __________________one day, they will not have to stand on their toes all the time.”Task 2:What kind of clause are they?(名词性从句：主语从句,表语从句，宾语从句，同位语从句)Joke1: What you want is a television set. （）Joke2: The student answered immediately that the last several minutes of a class is the longest while the last several minutes of an exam is the shortest.（）Joke3:And just when I was thinking about putting an end to my life, the worst is that you show up and drink my poison. （）Joke4: If my wish that the dancers can grow taller comes true one day, they will not have to stand on their toes all the time.（）Step 2:设问导读一. 主语从句主语从句就是从句在主句中作主语的名词性从句。

英语名词性从句自主学习导学案【学习目标】1。

扎实掌握英语名词性从句，提升自己的理解力.2。

自主学习，合作探究；学会分析与总结的方法,并能学以致用。

3。

激情投入,疯狂记忆，体验学习的快乐。

第一课时【知识体系构建】I。

五大句型已经学过了。

仔细观察以下例句，找出名词可以充当的成分。

1. 主语+谓语（及物动词）+宾语Walls have ears.2。

主语+谓语（不及物动词）The flowers are blooming.3。

主语+系动词+表语Miss Jones is a secretary。

4. 主语+谓语+间接宾语(人）+直接宾语（物)The mother will buy the girl a dress。

5. 主语+谓语+ 宾语 + 宾语补足语The father, John， considers the child a genius。

【自我梳理】找出名词可以充当的成分通过对五大句型的分析得出：名词可以用来充当______________________ 同样的道理，可以把句子中的名词换成一个小句子。

请同学们分析以下句子划线部分充当的成分。

1. Whether life will continue on the earth for millions of years to come will dependon whether this problem can be solved.2。

What it was to become was a mystery until the dust began to slowly combine into a ball moving around the sun .3。

May I ask what you were doing in my restaurant yesterday?4。

I wanted to know where all my customers had gone yesterday。

课题名称第周星期课型Grammar主备课人Knowledge aims:Learn the noun clauses ( used as the object and predicative)Learn how to use the noun clausesAbility aims:Be able to use the noun clauses correctly.Make clear about sentence structures.二次备课Master the usage of noun clause.任务一：判断句子主要的成份。

划出句子的主语（_____），宾语（===），表语(﹏),状语(‖)1.I bought a hat yesterday.2.The boy is li Ming.3.Mr. Liang , a 24-year-old boy, teaches us English .4.The car stopped suddenly.思考：名词在句中主要作_________、_________、________和同位语。

任务二：在课文中找出所有名词性从句（P17-18.）方法：找出含有what，that，why ，whether ，how and where 等名词性从句，问题生成记录：分析例句：1)The question is whether we can make good preparation in such a short time.2) But the fact remains that we are behind the other classes.【结论】观察以上从句在主句中的位置：从句在____________之后，一般结构是“___________＋___________＋___________”。

可以接表语从句的系动词有be, look,remain, seem等。

名词性从句导学案在句子中起名词作用的各种从句，统称为名词性从句。

根据它们在句中所起的语法作用，这类从句又可分别称为主语从句、表语从句、宾语从句和同位语从句。

（一）名词性从句的引导词1.连词:（只起连接作用，在从句中不作任何句子成分。

）①that (无词汇意义) ②whether, / if “是否”,“会不会”③whether…or…（是…还是…）2.连接代词:（除起连接作用外，还可以在句中作主语、宾语、定语、表语等语法成分。

）who（谁）、whom （谁）、whose（谁的）、which （哪一个/ 些）、what（什么，所…的）whatever (无论什么)、whoever（无论谁）、whichever（无论哪个/ 些）等3.连接副词（除起连接作用外，还可以在句中作状语。

）when、why 、where 、how、how、how many / how long等短语【注意】:whether 和if 引导宾语从句时可以互换使用，但在以下情况下通常用whether而不是if :① whether常和 or not连用， if则不可。

②引导主语从句放在句首时。

③介词后的宾语从句。

④引导表语从句和同位语从句时。

⑤用在不定式前面时。

★主语从句That he will come to the disscussion is certain.他来参加讨论是肯定无疑的。

（that 不可省略）Whether it will do us harm or good remains to be seen. 这事是对我们有害还是有益，还要等着看。

Where she lives is not known yet.. 她住在哪儿还不知道。

Whoever makes mistakes must correct them.【注意】以that 引导的主语从句多数情况下可以用it 作形式主语，而把主语从句放到句子的后部。

常见的句型有：It is a pity / a shame / a wonder that…It is certain / necessary/ possible/ strange/ important / clear that…..It is said / reported / thought / announced / ordered that …It seems / appears / happens that …★表语从句This is what we want . 这正是我们所需要的。

高一英语导学案Book3Unit4 Astronomy: the science of the stars名词性从句导学案Learning aims:1.learn definition of the noun clause2.Make the good use of the noun clause into practice名词性从句预习案1）名词性从句定义：在句子中起名词作用的句子叫名词性从句(Noun Clauses）。

2）名词性从句功能：名词性从句的功能相当于名词词组, 它在复合句中能担任主语、宾语、表语、同位语、介词宾语等，因此根据它在句中不同的语法功能，名词从句又可分别称为主语从句、宾语从句、表语从句和同位语从句。

3）引导名词性从句的连接词连接代词：who; whoever； whom; whomever; which； whose ; whosever； what; whatever; which; whichever连接副词：when; where; how; why; whenever; wherever, however；how构成的短语，（how many/much/Long/soon/often…)从属连词：that whether; if “是否” as if; as though（“好像”，“似乎”）； because （不充当从句的任何成分）注意：which表示有明确范围的选择连接代词和连接副词在句中既保留自己的疑问含义、又起连接作用，在从句中充当从句的成分。

1.that只起连接主句和从句的作用，在从句中不担任任何成分，本身也没有词义，宾语从句中可省略2.引导主语从句、表语从句和同位语从句,that不可省略。

名词性从句探究案一．主语从句主语从句是在复合句中充当_______的从句What he wants to tell us is not clear. 他要跟我们说什么，还不清楚。

名词性从句导学案名词性从句专题复习导学案学习目标：1.理解名词性从句的概念,学会运用定位法区分名词性从句类型；2.结合例句，理解名词性从句的引导词的用法可以准确分析从句成分，从而选择正确的引导词；3. 结合考题，明辨易错点,进一步在试题中分析、确定引导词。

学习重点：1. 名词性从句的分类；2. 引导词的选择学习难点：引导词that/what 的混用以及与其他引导词之间的混用学习过程：Step1. Lead in（回顾旧知，情景启动）Step 2. 展示目标激励活动Step3. 自主学习合作探究Task 1. 点拨促动根据“定位法”，判定从句类型找出下列句子中的从句，并说明从句类型1. When we shall hold the meeting depends on whether John can return tomorrow.2. The problem is when John will come back3. We expressed our hope that we could visit the country again.Task 2.自主学习分析例句，总结名词性从句中引导词的用法(a)连词—that1. Lin Tao feels（that ）his own team is even better.2. Jim thought（that ）the train was like a big moving party.小结：连词that 在从句中_______成分, _______具体意思, 因此在口语或非正式文体中_________。

【重点插播1】回顾考题，总结that在名词性从句中的省略情况1. There is a chance he will attend the important meeting.2. He said you were too young to understand the matter and you were asked not to care about it.3. The thought they could cross the whole continent was exciting.小结: 1）在______________________________不可省略2）It 做形式宾语的宾语从句；3）并列的多个宾语从句中，第一个______省略，从_______宾语从句开始都不可省略；4）当that作介词宾语时，that不可省掉。

一轮英语语法之十二：名词性从句【预习案】1.定义及种类:✧名词性从句是在句子中起名词作用的句子。

✧根据在主句中所充当的成分，可以具体划分为：__________________________________ 四类从句。

➢判断以下从句类型：1)Whether he can e to the party on time depends on the traffic. ___________2)The question is whether we can get in touch with her. ___________3)I am thinking about whether I should quit my present job. ___________2.引导词：3.解题步骤：1)判断从句类型：怎样判断从句类型？_______________________2)选引导词：如果已经确定是名词性从句了，可以按照以下步骤确定引导词：eg. I have no idea ____________ he was born.______________.5.It作形式主/宾语：1)It's a great pity that they didn't get married.2)It worried her a bit _____ her hair was turning grey.3)It's said that he has been there many times.4)I think it necessary that we take plenty of hot water every day.5)They want to make it clear to the public _______ they do an important job.【当堂训练】1.选择题:1)【2017·北京】Every year, ______ makes the most beautiful kite will win a prize in the KiteFestival.A. whateverB. whoeverC. whomeverD. whichever2)【2017·北京】Jane moved aimlessly down the treelined street, not knowing ______she washeading.A. whyB. whereC. howD. when3)【2017·江苏】We choose this hotel because the price for a night here is down to $20, half of_______ it used to charge.A. thatB. whichC. whatD. how4)【2017·天津】She asked me _______ I had returned the books to the library, and I admittedthat I hadn’t.A. whenB. whereC. whetherD. what5)【2022天津】Mental health involves________ you process things such as stress and anxiety.A. howB. whatC. whyD. which6)【2021天津】It seemed that I had bee ________ my parents had wanted me to be.A. whenB. whereC. whatD. whether7)（2020江苏）It is not a problem __________ we can win the battle; it’s just a matter of time.A. whetherB. whyC. whenD. where8)【2018北京】Without his support, we wouldn’t be _________ we are now.A. howB. whenC. whereD. why2.填空：1)He was very late. That was _______ the teacher was angry.2)________ is a fact that English is being accepted as an international language.3)As natural architects, the Pueblo Indians figured out exactly ________ thick the adobe wallsneeded to be to make the cycle work on most days.4)Exactly_________ the potato was introduced into Europe is uncertain, but it was probablyaround 1565.5)I think ________ impresses me about his painting is the colours he uses.6)It is difficult for us to imagine _________ life was like for slaves in the ancient world.7)Grandma pointed to the hospital and said, "That's ________ I was born."8)It remains to be seen the newly formed mittee’s policy can be put into practice.9)It's good to know _________ the dogs will be well cared for while we're away.3.高考真题填空：1)(2023年新高考全国Ⅱ卷)They also need to be ready to give interviews in English withinternational journalists. This is _________ they need an English trainer.2)(2022·新高考Ⅰ卷改)He always participated to the best of his ability in ________ they weredoing.3)(2022·全国甲卷改)I had no idea about ________ I'd find there and I wasn't nervous, I justwanted to do it.4)(2022·全国甲卷改)The realization ________ this is a precious land, to be respected byhumans, was one of the biggest things that hit home to Ginni.5)(2022·北京高考)It's easy to explain how we determine ________ smells are dangerous or not:we learn.6)(2022·新高考Ⅰ卷改)That was ________ none of the children thought it unusual that Davidhad decided to join the cross­country team. It just took him longer—that's all.7)(2021全国新高考Ⅰ卷) _______ is so breathtaking about the experience is the outofthisworldscenes.8)(2019全国Ⅰ卷) While they are rare north of 88°, there is evidence ______ they range all theway across the Arctic, and as far south as James Bay in Canada.【巩固练习】1.选择题：1)【2016·北京】Your support is important to our work. ________ you can do helps.A. HoweverB. WhoeverC. WhateverD. Wherever2)【2016·北京】The most pleasant thing of the rainy season is ________ one can be entirely freefrom dust.A. whatB. thatC. whetherD. why3)【2016·江苏】It is often the case ______anything is possible for those who hang on to hope.A.whyB.whatC.asD.that4)【2016·天津】The manager put forward a suggestion ____ we should have an assistant. There istoo much work to do.A. whetherB. thatC. whichD. what5)【2015·安徽】A ship in harbor is safe, but that’s not ______ ships are built for.A. whatB. whomC. whyD. when6)【2015·陕西】Reading her biography, I was lost in admiration for Doris Lessing hadachieved in literature.A. whatB. thatC. whyD. how7)【2015·福建】—I wonder _________ Mary has kept her figure after all these years.—By working out every day.A. whereB. howC. whyD. if8)【2021天津】What puzzles Lily's friends is ________ she always has so many crazy ideas.A．whether B．why C．what D．when9)【2020天津】My grandmother helped me believe that I could acplish ____________ I put mymind to.A. wheneverB. whateverC. whereverD. whichever10)【2018年北京卷】This is _________ my father has taught me—to always face difficulties andhope for the best.A. howB. whichC. thatD. what2.填空1)If you swim in a river or lake, be sure to investigate is below the water surface.Often there are rocks or branched hidden in the water.2)Is it true that Mike refused an offer from Yale University yesterday?Yeah, but I have no idea __________ he did it; that’s one of his favorite universities.3)The best moment for the football star was __________ he scored the winning goal.4)Pick yourself up. Courage is doing you're afraid to do.5)As John Lennon once said，life is __________ happens to you while you are busy makingother plans.6)Do not let any failures discourage you, for you can never tell ________ close you may be tovictory.7)From space, the earth looks blue. This is ___________ about seventy－one percent of itssurface is covered by water.8)Experts believe __________ people can waste less food by shopping only when it is necessary.3. 高考真题1)(2022·新高考Ⅰ卷改)This research overturns the popular view ________ all human speechsounds were present when human beings evolved around 300，000 years ago.2)(2022·新高考Ⅰ卷改)And the reason they got so much stronger and fitter was ________ theirhearts could now fill a lot better and pump (泵送) a lot more blood during exercise.3)(2022·全国乙卷改)It is believed _________ today's children and teenagers are consuming threetimes the remended level of sugar, putting them at a higher risk of the disease.4)(2022·北京高考改)This first contact was ________ my story began.5)(2022·浙江高考改)I wasn't sure ________ it meant exactly, but at least we had a topic.6)[2022新高考II]“I don't know ___________ to thank him.”7)(2018全国Ⅰ卷) I’m not sure ______is more frightened, me or the female gorilla (大猩猩)…I’mfacetoface with the gorilla, who begins screaming at the top of her lungs.8)（2020浙江高考）Over thousands of years，they began to depend less on could behunted or gathered from the wild, and more on animals they had raised and crops they had sown.。

名词性从句导学案教学设计郑武军I.教学重点与高考难点：⑴正确识别名词性从句(2) that和what的区别⑶whether, if的用法区别(4) that的省略(5)识别定语从句和同位语从句(6)宾语从句的语序、时态和语气(7)易混连词的区别方法一：对比例J ： 1. It is known the earth moves around the sun.2.is known to all, the earth moves around the sun.3.is known to all is the earth moves around the sun.A. thatB. AsC. what which方法二：归纳总结讨论：如何辨别主语从句、表语从句、宾语从句、同位语从句？结论归纳:.名词性从句解题三步法：第_步：第二步：第三步：【预习导学】：1,名词性从句大分类：,,,.2.引导名词性从句连接词：连接代词:,,,,连接副词: ,,,etc连接词：,,, etc.Note：连接代词和连接副词有意义在从句中充当一定的句子成分，而连接词有意义句中不充当句子成分，只起连接作用.what =that有意义，做成分，起连接作用。

that无意义不做成份，只起连接作用。

II.【问题探究】、一〉.高考考题引路：1). (2012 天津9) It doesn't matter you turn right or left at the crossing一both roads leadto the park.A. whetherB. howC. ifD. when2). (2011 天津13) Modern science has given clear evidence smoking can lead to many diseases.A. whatB. whichC. thatD. where二〉.名词性从句重点知识探究1.The Subject Clause主语从句知识小组探究：(1)that引导的主语从句That he won the game made us happy yesterday.made us happy he won the game yesterday.(2)whether &ifhe comes or not doesn't matter.⑶what引导的主语从句：What he says(make) no sense.What he wants(be) money.What he needs(be) English books.(4) whoever=anyone whoWhatever=anything thatWhichever + ofcomes to the party is welcome.will take part in the meeting is not decided.of us wins the games is respected by us.(5) it形式主语的句型* It is + adj. ( strange, natural, important, necessary, likely, obvious, certain...) +that It is strange that he( go) home yesterday.*It is +n. (a pity, no wonder, an honor, a shame...) + that*It is + done ( said, reported, believed, known, thought, expected...) + that*it +v. + O + thatIt worried her a lot that her hair was turning gray.*It doesn't matter (makes no difference, doesn't matter much ...)+ whit doesn't matter whether you are here or not.*It happened to me that ... 意思、：It seems /appears that...It turned out that...It occurred to me that主语从句要点归纳：(1)what & thatThat is he did.My idea is we are going shopping this afternoon.(2)as ifIt looks as if he is ill.It looks as if he were ill.(3)the reason why ...is that...The reason he was late was he got up late.The reason he gave us was he got up late.He got up late. That's he was late.He was late. That's he got up late.表语从句要点归纳：1). ____________________________________________________________2)..3.The Object clause:宾语从句知识小组探究：及物动词，介词和某些形容词能够接宾语从句。

名词性从句思易考易点名性从句包含主从句、从句、同位从句和表从句。

考的重点主假如接代和副的正确使用、主和的序、两重接以及特别句型的使用等。

详细包含：1．考名性从句的接。

如：有的接代包含 who, whose, whom, what, which；接副有 when, where, why, how；附属有 that, whether, if, as if；that无，在从句中不作成分，有可省略。

2．考名性从句的序和。

3．考 it 作形式主、形式的状况。

如：(1)It ＋be＋形容 (necessary, important, obvious等)＋ that 从句；(2)It ＋be＋去分＋ that 从句；(3)It ＋be＋名 (a surprise, a fact, a shame, an honour等 )＋that 从句；(4)It ＋不及物 (appear, happen等)＋that 从句。

4．考名性从句中的虚气。

如：(1)It is/was＋ essential/important/natural⋯＋ that⋯；(2)It is/was suggested/demanded/wished/desired⋯＋ that⋯等。

5．考 what 引名性从句的功能和法功能。

如： what＝ the thing that/anything that；what＝the place that；what＝ the time that；what＝the person that 等。

6．考 whoever，whatever，whichever 引名性从句的功能和法功能。

七大常考考点 : 1.that \ what \ which; 2.it形式主、的用法; 3.序 ; 4.同位从句和定从的区; 5.what \ whatever ⋯ 6.if\whether; 7. 虚气 ;五、有关集中一 . 有关观点1.名词：表示人或事物的名称的词2.名词的句法作用：名词在句中主要作 ___,_____,表语和 ______。

名词性从句导学案1.主语从句的引导词：who，that，which，what，when，where，how，whether，why，whoever，whichever，whatever等。

What matters most in learning English is enough practice.学习英语最重要的是足够的练习。

That you are coming to London is the best news I have heard this long time.长久以来我听到的最好的消息就是你要来伦敦。

Whoever wants to stay in a hotel has to pay their own way.(浙江高考)无论是谁想住宾馆都必须交费。

2.it作形式主语：主语从句可以放在句子后面，而用it作形式主语放在句首，尤其是that引导的主语从句常用于此种句式中，即：It＋be＋adj./n.＋that­clause。

It is none of your business what other people think about you.Believe yourself.(福建高考)其他人怎么认为你不关你的事，相信自己。

It is obvious to the students that they should get well prepared for their future.(2009·天津高考)显而易见，学生应该为他们的未来做好充分准备。

It is a pity that you missed such a fine talk.很遗憾你错过了如此美好的谈话。

3．whoever，whatever，whichever引导的主语从句。

1)whoever相当于anyone who，表明泛指关系，表示“任何……的人都，凡是……的人都”。

Whoever breaks the law will be punished.无论是谁违反法律都将受到惩罚。

Grammar: the None clause 导学案一、The Subjuctive ClauseStep1:ObservingLet students read the following sentences and try to discover the subject of each sentence and underline them. Then circle the verbs of each sentence .1. My father is a worker.2. He likes me very much.3. To see is to believe.4. Smoking is bad for health.5. What he needs is more time.6. It is necessary that I should help him to give up smoking.思考与发现1：通常主语位于__________ ；第____ 句与其他的句子不一样。

（思考为什么？）(定义)主语从句:在主从复合句中，充当主语的从句叫做主语从句。

第______________ 句是主语从句。

Step2 Thinking and discussingLet students read and translate the following sentences in groups, especially pay attention to how to use these connections.①.Which side will win is not clear.②.Who will do it has not been decided yet.③Whose bag it is is not clear.④Whoever breaks the law will be punished.⑤That the earth travels round the sun is a well-known fact.⑥Whether the artist can do it or not is uncertain.⑦When and where the test will be given is not yet decided.⑧Why he did it remains a mystery.⑨How he became a great scientist is known to us all.⑩.Where the heroine went is not mentioned at the end of the story.Task 1:read and translate the given sentences; then underline the subject of each sentence.Task 2: Finish the chart. If you have some difficulties, you can discuss with your partners.思考与发现2：①引导主语从句的连接词主要有三类：连接词：that，whether；连接代词：_______，_______，_______，whatever，whichever，whoever 等；连接副词：_______，_______，_______，_______等。

名词性从句导学案名词性从句是指在句中充当名词成分的句子，常见的名词性从句有主语从句、宾语从句、表语从句和同位语从句。

名词性从句在句子中具有重要的作用，能够充当名词的角色，承担句子的基本成分。

下面我们就来了解一下名词性从句的相关知识。

一、主语从句主语从句是在句子中充当主语成分的从句，常常由连词“that”或“whether/if”引导。

主语从句通常位于句子的主谓之间，引导整个主语从句的词作为整个句子的主语，例如：1. That he should refuse to help us surprised me.他拒绝帮助我们，这让我感到惊讶。

2. Whether we should accept the offer is still under discussion.我们是否应该接受这个提议仍在讨论中。

主语从句在句子中起着承担主语成分的作用，对于句子的结构和语义都起着重要的作用。

二、宾语从句宾语从句是在句子中充当宾语成分的从句，通常由连词“that”引导，有时也可以省略。

宾语从句常出现在及物动词后面作为宾语，例如：1. She said that she would come to the party.她说她会来参加派对。

2. They didn't know if he was telling the truth.他们不知道他是否在说实话。

宾语从句在句子中起着承担宾语成分的作用，对于动词的选择和句子的结构都有一定的影响。

三、表语从句表语从句是在句子中充当表语成分的从句，通常由连词“that”引导，有时也可以省略。

表语从句常出现在系动词后面作为表语，例如：1. The question is whether he will come or not.问题是他是否会来。

2. Her suggestion was that we go together.她的建议是我们一起去。

表语从句在句子中起着承担表语成分的作用，对于表达句子的内容和情感有重要的作用。

名词性从句（noun clauses）Class：Name:教学目标：掌握名词性从句的四大类型以及它们的用法，并能判断出练习中的句子属于什么从句类型，会做一些简单的练习。

教学重点：1. 主语从句，宾语从句，表语从句，同位语从句，让学生能判断出一个复合句属于什么类型的从句。

2. 注意宾语从句的时态呼应。

教学难点：1. that什么情况下可以省略，什么情况下不可以省略。

2. whether 和if 什么时候可以互换，什么时候不可以互换。

3. 如何区分同位语从句与定语从句。

教学过程：Lead—in: exercises1.______ the baby could speak made his parents very happy.A. ThatB. WhatC. WhyD. If2. I wonder ______ you will go shopping or stay at home.A. thatB. ifC. whetherD. what3. This is ______ he was often late for school.A. whatB. thatC. whyD. whether4. We all know the truth ______ the earth ______ around the sun.A. if; movedB. that; movesC. why; moveD. whether; move完成以上四个题目，并分别指出它们是什么从句，从而导出名词性从句的学习。

一．名词性从句的概念：一个句子在连接词的引导下，在句子中起名词作用的句子叫名词性从句。

二．名词性从句的功能：相当于名词词组, 它在复合句中能担任主语、宾语、表语、同位语、介词宾语等。

His job is important. (主语)What he does is important. (主语从句)This is his job. (表语)This is what he does every day. (表语从句)I don’t like his job. (宾语)I don’t like what he does every day. (宾语从句)I don’t know about the man, Mr. White. (同位语)I don’t know about the fact that he is a teacher. (同位语从句)得出结论：因此根据它在句中不同的语法功能，名词从句又可分为四类，即：主语从句、宾语从句、表语从句和同位语从句。