英语 名词性从句.doc

*名词性从句的概念及分类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、同位语等。因此根据它在句中不同的句法功能，名词性从句又分主语从句、宾语从句、表语从句和同位语从句。*引导名词性从句的连接词引导名词性从句的连接词可分为三类：从属连词： _ （不充当从句的任何成分）连接代词：what、whatever、who 、whoever、 whom 、whomever、 whose 、which、 whichever连接副词： 等不可省略的连词：1.介词后的连词 2.引导主语从句和同位语从句的连词*名词性从句的重难点一 、名词性从句的语序 （ 语序）二 、名词性从句引导词间的区别1、whether 与if的区别whether 与if均为“是否”的意思。但在以下情况下，whether不能被if取代：whether引导表语从句和同位语从句时 在主语从句中，若用it做形式主语，if / whether均可；否则，只用whetherEg.Whether we will attend the meeting hasnt been decidedIt hasnt been decided whether / if we will attend the meeting.引导介词后的宾语从句时 后面跟or not时 后面直接跟动词不定式时It all depends on they will support us.He doesnt know to stay or not.Whether与 if均可使用的情况 引导宾语从句 在be+adj.之后 He was not sure whether/if it is right or not.2、what 与that的区别that引导名词性从句，不在从句中充当任何成分，只起连接作用；what是连接代词，在从句中充当成分作主语、宾语或表语。除表明具体的内容外，还表的时间、地点、人、速度等。 made the school proud was more than 90%of the students had been admitted to key universities.A. What; because B. What. that C. That; what D. That; because-I think its going to be a big problem.-Yes, it could be.-I wonder we can do about it.A. if B. how C. what D. thatA modern city has been set up in was a wasteland ten years ago.After seemed a long time, he managed to work out this problem.介词后的宾语从句常用what引导，不用that引导。但在介词besides,except,in后可用that引导宾语从句。由it做形式宾语时，that引导的宾语从句中，that不可省略。Criticism and self- Criticism is necessary in that it helps us to correct our mistakes.He noticed that the straight part of the dance was different in the afternoon from it had been in the morning.The suit fitted him well the color was a little brighter.A. except for B. except that C. except when D. besideswhat/ whatever-the + n. +that/ which (what/ whatever可作前置定语)Please give me what books you have.You can write about whatever topic you prefer.3、wh-ever与no matter+ 疑问词的区别wh-ever既可引导名词性从句又可引导让步状语从句；而no matter+ 疑问词只可引导让步状语从句。Whatever I said, he wouldnt listen to me.= No matter what I said, he wouldnt listen to me. 从句He would believe whatever I said. 从句三、宾语从句的注意点否定前移 think, believe, suppose, expect, guess, imagine etc.若主语的谓语动词是make, find, see 等，则把宾语从句置于宾补后，用it做形式主语.The teacher made it a rule that we should get up early.See to it that children dont catch cold.that在主语从句、表语从句和同位语从句中不可省略。在宾语从句和it做形式主语的主语从句中可省略；但当有两个或两个以上的宾语从句并列时，第二个从句以下的that不可省略。She said (that) she had left school and that her parents would find her a job.固定用法：like it; dislike it; have it; appreciate it 一般与if 或 when 引导的从句连用。I like it in the autumn when the weather is clear and bright.四、that引导同位语从句与定语从句的区别that引导同位语从句时，that是连词，应在某些抽象名词之后，如：fact,hope,desire,thought等，对前面的名词起补充说明作用，它在从句中不充当任何成分，不能省略，；that引导定语从句时，that是关系代词，在从句中充当主、宾和表语。The news that they had won the game arrived soon . 从句The news that you told me yesterday is true. 从句高中英语名词性从句精讲精练（09安徽）1._ a certain doubt among the people as to the practical value of the project. A. It has B. They have C. It remains D. There remains（09湖南）2She is very dear to us. We have been prepared to do_ it takes to save her life. A. whichever B. however C. whatever D. whoever（09江西）3. The fact has worried many scientists _ the earth is becoming warmer and warmer these years. A. what B. which C. that D. though（09海南）4. Could I speak to_ is in charge of International Sales please A. who B. what C. whoever D. whatever（09陕西）5. The how to book can be of help to_ wants to do the job. A. who B. whomever C. no matter who D. whoever（09海南）6. One of the most important questions they had to consider_ was of public health. A. what B. this C. that D. which（09上海）7. As a new diplomat, he often thinks of he can react more appropriately on such occasions. A. what B. which C. that D. how（09四川）8. News came from the school office _Wang Lin had been admitted to Beijing University. A. which B. what C. that D. where（09天津）9. It is obvious to the students _ they should get well prepared for their future. A. as B. which C. whether D. that（09浙江）10Is there any possibility _ you could pick me up at the airport No problem. A.When B. that C. whether D. what（09重庆）11 Weshouldconsiderthestudents request _ the school library provide more books on popular science. A. that B. when C. which D. where（09江苏）12.Many young people in the West are expected to leave _could