（初升高）高一英语衔接班第3讲——名词性从句.doc

初升高）高一英语衔接班第3讲——名词性从句一、学习目标：掌握名词性从句，即主语从句、宾语从句、表语从句和同位语从句的不同语法特征；掌握名词性从句的用法二、学习要点：what, that所引导的名词性从句的区别；whether, if所引导的名词性从句的区别；it 作形式主语和宾语的情况；名词性从句与定语从句和状语从句的区别三、课程精讲：（一）重点知识讲解1、什么是名词性从句名词：表示人或事物的名称，可作主语、表语、宾语和同位语名词性从句：功能相当于名词，包括主语从句、表语从句、宾语从句和同位语从句从属词: that whether if 连接代词: what who whom which连接副词: when where why how辨析：What we need is water and air.That is why we put off the meeting.I wonder if you can do me a favour.I have no idea when he will come back.2、从属词的用法that 连接作用；无意义if/ whether 连接作用；意为“是否”That the moon travels around the earth is known to all.The problem is whether we can work it out in time.I wonder if you can do me a favour.3、连接代词的用法（作主语、宾语、表语、定语）what 指代物 who/ whom 指代人which 作定语，意为“哪一个”，有选择范围The South China is not what it used to be.Do you know who/ whom they are waiting for?I am not sure which football team will win tonight.4、连接副词的用法（作状语）When we shall leave for Canada has not been decided yet.That is where I was born.I know why he is absent today.（二）解题方法总结1. 解题方法：判断从句性质；找出从句缺少的成分；选择连接词My decision is ___________ all of us are going to start at 6 tomorrow morning.They couldn’t understand ___________ I refused it.We are worrying about _____________ we should do next.2. that 通常不可省略的情况：1) 主语从句中，that位于句首时，不可省略；That the moon travels around the earth is known to all.2) 当一个句子中有两个或多个宾语从句，第一个that可以省略，其余的that不可省略；He said (that) the text was very important and that we should learn it by heart.3) 由it作形式宾语，that引导的宾语从句中，that不可省略。

I think it necessary that we take plenty of hot water everyday.3. 只能用whether不能用if的情况1）在表语从句和同位语从句中The question is whether we can go climbing.2）在介词之后It all depends on whether our parents will support us.3）whether or not. （不可用if or not）The little boy wondered whether or not he could go to the seaside.4. 当主语从句位于句首时，只能用whether; 当it作形式主语时，主语从句放在句末，用whether或if 皆可Whether the meeting will be held has not decided yet.练习：用whether或if填空_________________ we will go swimming tomorrow depends on the weather.I am not sure _________________ he will come or not.It is doubtful ____________________ the work can be completed.5. 连词 that引导的同位语从句与关系代词that引导的定语从句的区别同位语从句：位于抽象名词后，起补充说明作用，只起连接作用，不充当任何成分。

定语从句：起连接和替代作用The news that our football team won the match was exciting.The news that we heard on the radio was not sure.练习：辨析There is a feeling in me that we’ll never know the fact.What is the first American film that you have seen?6. 定语从句与状语从句的区别——句子结构不同He left the key where he had been an hour before.（状语从句）He left the place where he had lived for many years. （定语从句）He is such a good teacher as all of us love and respect. （定语从句）He is such a good teacher that we all like him. （状语从句）（三）即学即练1. A computer can only do _________________ you have instructed it to do.2. I read about it in some book or other, does it matter ___________ it was?3. It is well understood _______________ controls the weather.4. He wrote an article on _______________ the team had failed.5. Danby left word with my secretary ______________ he would call again in the afternoon.（四）高考链接1. I want to know _________ the thief was caught on the spot.A. which B. that C. what D. whether2. Do you have any idea _________ is actually going on in the classroom.A. that B. what C. as D. which3. —Could you do me a favour?—It depends on __________ it is.A. which B. whichever C. what D. whatever4. One advantage of playing the guitar is _________ it can give us a great deal of pleasure.A. how B. why C. that D. when5. It is obvious to the students ________ they should get well prepared for their future.A. as B. which C. whether D. that四、下讲预告下节课将讲解非谓语动词的有关理论知识。

同步练习】（答题时间：25分钟）1. _______ makes his shop different is that it offers more personal services.A. What B. Who C. Whatever D. Whoever2. —It’s thirty years since we last met.—But I still remember the story, believe it or not, _______ we got lost on a rainy night. A. which B. that C. what D. when3. See the flags on top of the building? That was _______ we did this morning.A. when B. which C. where D. what4. These shoes look very good. I wonder _______.A. how much cost they are B. how much do they costC. how much they cost D. how much are they cost5. Doris’ success lies in the fact _______ she is cooperative and eager to learn from others.A. which B. that C. when D. why6. —Why does she always ask you for help?—There is no one else _______, is there?A. who to turn to B. she can turn to C. for whom to turn D. for her to turn7. Elephants have their own way to tell the shape of an object and _______ it is rough or smooth. A. / B. wh。