人教版英语选择性必修二Unit2《3 Discovering useful structures》学案

1、Unit 2 Bridging Cultures Period3 Discovering useful structures复习名词性从句导学案1. to judge the compound sentences and determine the composition of the clauses in the sentence.2. to try to learn grammar by generalizing grammar rules, controlling written practice, and semi-open oral output.3. to systematize

2、the function and usage of noun clause.1: 从课文中找出更多的名词性从句，对其进行归纳，总结其语法特点。1.Laura says she always feels hungry when she smells it, so I taught her how to cook it, too.劳拉说她一闻到它就觉得饿，所以我也教了她怎么做。2her tutor explained that she must acknowledge what other people had said if she cited their ideas.她的导师解释说，如果她引用

3、别人的观点，她就必须注明引用了别人所说的话。3What surprised her was that she found herself speaking up in class after just a few weeks.令她惊讶的是，仅仅几周后，她就发现自己敢于在课堂上发言。4.What seemed strange before now appears quite normal to her.以前看起来很奇怪的事，现在在她看来就很正常了。语法要点:1以上各句为主从复合句，句中使用了相当于名词作用的从句(即名词性从句)在句中充当成分。2句1中says后为省略了that的宾语从句。3句2中

4、explained后为that连接的宾语从句，that只起连接的作用，不充当句子成分；acknowledge后为what连接的宾语从句，what在从句中充当宾语。4句3中what surprised her 为what连接的主语从句，what在从句中充当主语；that she found.为that连接的表语从句，that只起连接的作用，不充当句子成分。5句4中What seemed strange before为what连接的主语从句。2:划出以下讲义中例句的名词性从句，并口头翻译成汉语。 (一)主语从句主语从句是指在句中作主语的从句，位置与陈述句的主语相同。Whether the spor

5、ts meet will be held is not certain now.运动会是否将举行现在不能确定。 名师点津若主语部分结构较长，可以使用形式主语it，把真正的主语从句放于后面。That she will do well in her exam is certain.It is certain that she will do well in her exam.她在考试中会做得好，这是确定无疑的。How we understand things has a lot to do with what we feel.我们如何理解事物与我们的感觉有很大关系。That he had met

6、a kind librarian in the city library gave us no surprise.他在市图书馆遇到了一位善良的图书管理员，这并没有使我们感到惊讶。Every year, whoever makes the most beautiful kite will win a prize in the Kite Festival.每年制作出最漂亮风筝的人都会在风筝节上获奖。What he had said surprised everyone present.他所说的话让在场每一个人吃惊。It seemed that he had donated all his mone

7、y to those in need.他似乎已将所有的钱都捐给了那些需要帮助的人。(二)宾语从句Everyone knows that the earth is made up of matter.每个人都知道地球是由物质构成的。She asked me whether I had returned the books to the library, and I admitted that I hadnt.她问我是否把书还给图书馆了，我承认没有。I dont know where I can place my luggage我不知道我的行李可以放在哪里。We discussed whether

8、 we should use the money to buy a new house.我们讨论该不该用这笔钱买套新房子。Im not certain whether the train will arrive on time.我不确定火车是否将会按时到达。注意：形容词后跟宾语从句的用法只限于少数动态形容词，如sure(确信)，certain(肯定)，afraid(担心)，confident(有把握的)等。注意(1)宾语从句的否定转移：think、believe、suppose、 imagine等动词后的宾语从句中的否定词要转移到主句中，即主句的谓语动词用否定式，而从句的谓语动词用肯定式。I

9、dont think we need to waste much time on it.我想我们不必在这上面浪费太多时间。(形式上否定主句，实际上还是否定从句)(2)“doubt宾语从句”的应用。肯定句中用whether或if，否定句和疑问句中用that。I doubt whether he can pass the exam.我怀疑他是否能够通过此次考试。I dont doubt that he can pass the exam.我不怀疑他能通过此次考试。Do you doubt that he can pass the exam?你怀疑他能通过此次考试吗？(三)表语从句1表语从句在复合句

10、中作表语，出现在连系动词之后，一般结构为“主语连系动词表语从句”。2表语从句实际上是对主语进行补充说明，从句表达的是主语的内容。The fact is that he didnt notice the car until too late.事实是他注意到汽车时已经太晚了。3主句的主语是名词idea、advice、suggestion、order、request、requirement等时，表语从句应用虚拟语气，即谓语动词用“(should)动词原形”。My suggestion is that we (should) have a discussion about this matter in

11、stead of setting it aside.我的建议是我们应当讨论一下这个问题，而不是把它放在一边。The most pleasant thing of the rainy season is that one can be entirely free from dust.雨季最令人愉快的事情是可以完全摆脱灰尘。This is because about seventyone percent of its surface is covered by water.这是因为它的表面有71%被水覆盖着。名词性从句连接词(一)that、whether和if1连接词thatthat引导从句时，本

12、身无意义，在从句中不充当成分。但是that在引导主语从句、表语从句时，一般不能省略。例如：That he suddenly fell ill made us surprised.他突然生病让我们震惊。The fact is that we are behind other groups.事实是我们落后于其他小组。在引导宾语从句时，常被省略；但是以下两种情况除外：(1)多个并列从句出现时，第一个that可以省略，其他的不能省略。She said (that) she would come here and that I should wait for her till Monday.她说她将会来

13、这儿并让我等到星期一。(2)含有形式主语it时，放于后面的宾语从句不能省略that。They made it clear to the public that they did an important and necessary job.他们向公众表明：他们所做的工作重要且必不可少。2连接词whether和if(1)连接词whether/if在从句中意为“是否”，不充当成分，一般不能省略。(2)在主语从句中位于句首时只能用whether；当用it作形式主语时，whether与if都可以。Whether he passed the exam was not certain.It was not

14、 certain whether/if he passed the exam.不确定他是否通过了考试。(3)表语从句中常用whether。The question is whether we should ask them for help.问题是我们是否应该向他们寻求帮助。(4)宾语从句中连接词whether和if常常可以互换。I wonder whether/if hell agree with me.我想知道他是否会同意我。点津宾语从句中用whether不用if的三种情况：(1)与or not连用We dont know whether Tom will turn up at the m

15、eeting or not.我们不知道汤姆是否会参加会议。(2)位于介词之后Everything depends on whether you are for it.每件事情都取决于你是否赞成它。(3)位于动词不定式之前I dont know whether to believe him.我不知道是否该相信他。(二)连接代词what、 which、who、whom和whose连接代词what、which、who、whom和whose在从句中的意义分别为“所”“哪一个”“谁”“谁”“谁的”；在从句中起代词的作用，可作主语、表语、宾语或定语。Thats what we have said.(作宾语

16、)那就是我们所说的话。Do you know which of the boys was late? (作主语)你知道哪个男孩迟到了吗？Who will come to give the talk is known to us all.(作主语)我们都知道谁将来做报告。The problem is whom the headmaster will send to deal with it.(作宾语)问题是校长将要派谁来处理这件事情。Do you know whose Tshirt it is？(作定语)你知道这是谁的T恤衫吗？点津连接代词what、 which的区别：which引导主语从句时需

17、要限定一个有限的、较小的范围，而what指在一个较广的范围内进行选择或者根本没有范围。Which of the boys broke the window is already known.已经知道是哪个男孩打破了窗户。I dont know what books the children can read.我不知道孩子们能读什么书。(三)连接副词when、where、why和howwhen意为“何时”，在从句中作时间状语；where意为“哪里”，在从句中作地点状语；how意为“如何”，在从句中作方式状语；why意为“为什么”，在从句中作原因状语。When well set off for h

18、ome hasnt been decided yet.我们何时动身回家还没有被决定。That was where I spent my holiday.那就是我度假的地方。Nobody knew how she got the prize.没有人知道她是如何获奖的。This is why we put off the meeting.这就是我们推迟会议的原因。(四)复合连接词whatever、whichever、whoever和whomever连接代词whatever、whichever、whoever和whomever在从句中的意义分别为“无论什么” “无论哪一个” “无论谁” “无论谁”；

19、在从句中起代词的作用，可作主语、宾语或定语。Whatever I have is at your service.我所有的一切都供你使用。Ill take whichever picture you dont want.我随便拿一幅你不要的画好了。Whoever breaks the law should be punished.无论谁违反了法律都应该受到惩罚。Whomever you invite will be welcome.你邀请的任何人都将受欢迎。名师点津(1)whatever、whichever、who(m)ever既可引导名词性从句，又可引导让步状语从句；no matter wh

20、at、no matter which、no matter who(m)只引导让步状语从句。Whichever/No matter which dictionary you want to buy, Ill pay for it.无论你想买哪本词典，我都愿意付款。(2)wherever (no matter where); whenever (no matter when); however (no matter how)一般引导让步状语从句。However/No matter how tough the problem may be, Ill work it out by myself.无论问

21、题可能有多难，我都会自己解决它。三：背过以下常用句型。it作形式主语或形式宾语的名词性从句(一)主语从句中以it作形式主语的四种常用句型1It 不及物动词的适当形式从句It seems that .好像是It happened that . 碰巧It follows that . 由此可见It has turned out that . 结果2Itbe及物动词的过去分词从句It is said that . 据说It is reported that . 据报道It is believed that . 人们认为It is hoped that . 大家希望It has been proved

22、 that . 已证明3Itbe名词(词组)从句It is a fact that . 事实是It is good news that . 是好消息。It is a question that . 是个问题。It is common knowledge that . 是常识。It is a fact that smoking is a danger to health.吸烟危害健康，这是事实。4Itbe形容词从句It is necessary that . 有必要It is clear that . 很清楚It is (un)likely that . 很(不太)可能It is importa

23、nt that . 重要的是 (二)宾语从句中以it作形式宾语的两种常用句型1带复合宾语(宾语宾语补足语)的句子，that引导的宾语从句经常移到句子后面，而用it作形式宾语。We think it possible that you can finish the work today.我们认为你今天能够完成这项工作。2表示喜欢、憎恶等心理活动的动词或短语后习惯上先跟一个形式宾语it，再接宾语从句。如：hate、enjoy、dislike、love、dont mind、feel like、appreciate、rely on、count on、see to、take (认为)、owe等。四：巩固练习。A.翻译句子。1.It seems that they will win the game看起来他们会赢得这场比赛。2.It is suggested that the meeting (should) be put off有人建议会议应当延期。3.I hate it when they talk with their mouths full of food.我讨厌他们满嘴食物时说