名词性从句考点例析.doc

名词性从句考点例析一、名词性从句包括主语从句、宾语从句、表语从句、同位语从句。举例：Whether they will come or not is not important.I dont know whether it is right.This is what he has asked for.They heard the news that a typhoon was coming.二、连接词引导名词性从句的连接词分为：（1）连接词3个:that、whether（or not）、if,注意that 没有实际含义，只起引导的作用。（2）连接代词：who, whom, whose, which ,what, whatever, whoever（3）连接副词：when ,where, why, how三、考点一从句的语序：都要使用陈述语序。主、从句时态的呼应。 1.Can you make sure _ the gold ring ? A where Alice had put B where had Alice put C where Alice has put D where has Alice put 2. No one can be sure _ in a million years. A what man will look like B what will man look like C man will look like what D what look will man like 3. He asked _ for the violin. A did I pay how much B I paid how much C how much did I pay D how much I paid 析：答案：C、A、D三题均是带有宾语从句的主从复合句。在上述四种名词性从句中，都要使用陈述语序。另外，还要特别注意主、从句时态的呼应。二、选择whether 还是if 1引导主语从句、表语从句和同位语从句时，只能用whether不能用if如：1) It remains unknown whether we can get enough money .( 主语从句)2) The question is whether he can do it well or not.( 表语从句) 3) I have no idea whether he will come or not .( 同位语从句) 2. 引导介词宾语从句时，只能用whether不能用if如：Im thinking of whether I should go or not. 3. 与不定式短语连用时，只能用whether不能用if如：I cant decide whether go to or to stay. 4. 在正式文体中，句中有or not 时，只能用whether不能用if如：I wonder whether it is big enough or not. 5. whether 、if引导肯定的宾语从句时（除了上述2、3、4三种情况外）可互换。但引导否定的宾语从句时，只能用if .如：I dont know whether/if I should tell you about it.(肯定的宾语从句)I dont care if it doesnt rain.（否定的宾语从句）：三 it 充当形式主语，真正的主语主语从句后置。 1It worried her a bit _ her hair was turning gray. A while B that C if D for 2. _ is a fact that English is being accepted as an international language. A There B This C That D It 析：答案：B 、D 虽然两题考查的方式不同，但均考查主语从句中一种特殊的句式，即：用it 充当形式主语代替主语从句，而把主语从句后置。四选择what 还是that . What 在从句中既起连接作用， 还在从句中充当成分，可作主语、宾语、表语和定语；而that 只起连接作用，在从句中不作成分。 1. _ he said at eh meeting astonished everybody present. A What B That C The fact D The matter 2. _ we cant get seems better than _ we have. A What ; what B What ; that C That ; that D That ; what 析：答案：A、A. 五疑问词+ever构成的复合连接词的用法。 1.Sarah hopes to become a friend of _shares her interests. A anyone B whomever C whoever D no matter who 2.It is generally considered unwise to give a child_ he or she wants. A however B whatever C whichever D whenever3The poor young man is ready to accept _help he can get. A.whichever B.however C.whatever D.whenever 析：答案：C , B.C 题1考查“疑问词+ever”构成的关联词引导的从句作介词of的宾语，即：介词宾语从句。宾语从句中谓语动词shares缺少主语，故应选C。whoever,相当于anyone who.“疑问词+ever”构成的关联词（however除外）即可以引导名词性从句，也可以引导让步状语从句。而“no matter+疑问词”只能引导让步状语从句。故D项应排除。 题2考查的是 whatever引导的宾语从句。Whatever相当于anything(everything)that.从句中谓语动词wants后缺少宾语，应首先排除连接副词A项和D项。使用C项whichever时，应首先有限定范围，whichever相当于any + 限定范围内的某人或某物。故选B .练习：1. Father made a promise _I passed the examination .he would buy me a bicycle.A. that B.if C.whether D.that if 2._you dont like him is none of my business.A.what B.who C.that D.whether3._the old mans sons wanted to know was _the gold had been hidden.A.that, what B.what, where C. what, that D.what, if 4.The fire destroyed _was in the ship .A.that B.what C.which D.all5._troubles him is the thought _A.that, they broke the rule B.that, they obeyed the rule C.what, they broke the rule D.what, they obeyed the rule 6.we heard the news _she set a new world record in swimming.A.what B whether C.how D.that 7.The question is _it is worth visiting .A.if B.as if C.whether D.how解析：1D that引导同位语从句，说明promise 的内容，在that 从