名词性从句2_2名词性从句
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一、考点聚焦
1、名词性从句中连接词的运用
名词性从句中的连接词有连词that / whether / as if，连接代词what / who/ which / whose / whatever / whoever / whomever / whichever，连接副词where / when / why / how / wherever / whenever。（1）that的用法。
①主语从句、表语从句、同位语从句中用that但不能省略。如： That they are good at English is known to us all.The problem is that we don’t have enough money.She expreed the hope that they would come to China one day.②宾语从句中的连接词that有时可省有时又不可省，在以下几种情况中that不能省略：（A）当that从句和主句谓语动词之间有插入词语或者从句主语之间有插入语时，that不可省略；（B）当that 从句与另一名词性从句并列作宾语时，that不能省；（C）当that作介词宾语时，that不可省掉。如：
Everyone knew what happened and that she was worried.The reason lies in that she works harder than the others do.③that从句作主语和宾语时，可以用it 来替换成以下几种结构表达。
(A)It is clear/certain/likely/true/surprising that…（B）It is a pity/shame/good idea/no wonder that...（C）It is said/reported/ believed/known/thought/suggested that …（D）It seems/happens that。如： It happened that I went out last night.It is said that China will win in the World Cup.④that和what的区别。
that 引导名词性从句时，在主从句中不以当任何句子成分，也没有任何含义；而what引导名词性从句时，在主从句中都要充当一定的句子成分，what可以分解成定语从句中的先行词 + 关系代词即常说的先行词 + that。如：
It’s shame that he has made such a mistake.Do what he says.⑤同位语从句与定语从句中that的区别。
同位语从句中的连词that只起连接作用，在从句中不担当任何句子成分；而定语从句中的关系代词that在句中做宾语或主语，宾语与先行词有修饰关系。如果句子是同位语从句，就应用连词that而不能用which.同位语从句一般放在表具体含义的名词后解释名词的含义或内容，如以下名词：news、fact、suggestion、truth、plan、belief、doubt、poibility、idea等，而定语从句只是对先行词的限定和修饰。如：
They expreed the hope that they would come to visit China again.(同位语从句)The hope she expreed is that they would come to visit China again.（定语从句）
（2）whether和if的用法。
①whether和if在宾语从句中可以互换，但是作介词宾语时连接词一般用whether。如： It all depends on whether they will come back.②后面直接跟or not 时用whether。如：
I didn’t know whether or not he had arrived in Wuhan.③主语从句表语从句中只能用whether。如：
Whether the meeting will be put off has not been decided yet.The question is whether they have so much money.④whether可以引导同位语从句，用以说明前面的名词的内容，if不能。如： We ought to discu carefully the question whether we can do it or not.⑤whether常与or连用表示一种选择，if不能这样用；whether也可与动词不定式连用但if不能。如：
The question of whether they are male or female is not impor-tant.I have not decided whether to go or not.⑥间接引语位于句首时或者是间接引语提前时用whether不用if。如： Thank you, but whether I’ll be free I’m not sure at the moment.⑦whether可引导一个让步状语从句表示“不管”、“无论”，而if不能。如： Whether he comes or not, we will begin our party on time.（3）疑问词 + ever和no matter + 疑问词的区别。
①疑问词 + ever可引导名词性从句，在主从句中要充当一定的部分。如： Whoever breaks the rule must be punished.You can choose whatever you like in the shop.②疑问词 + ever还可引导让步状语从句。如： Whoever breaks the rule, he must be punished, Whatever you do, you must do it well.③no matter + 疑问词只能引导让步状语从句。如： No matter what you do, you must do it well.No matter who breaks the rule, he must be punished.（4）when和where引导的同位语从句与定语从句的区别。
when 和where前面的名词若是表示时间、地点的名词，则when和where引导的是定语从句，否则则为同位语从句。如：
They put forward the question where they could get the money.This is the place where the accident happened.2、名词性从句中主句和从句的时态一致
（1）宾语从句中主句和从句的时态保持一致，但如果从句中表示提示的是客观现象，虽然主句是过去时态，从句仍用一般现在时。如：
Hello,I didn’t know you were in London.How long have you been here? The teacher told us that light travels at a very high speed.（2）主语从句作主语相当于单数第三人称作主语，谓语动词用单数，如果由and 连接两个或两个以上的主语从句作主语时，谓语动词用复数；由两个或多个连接词引导一个主语从句，谓语动词用单数。如：
When the meeting will begin has not been decided yet.When they will start and where they go have not been decided yet.When and where the meeting will begin has not been decided.3、名词性从句的词序
名词性从句在句中要用陈述句语序。如： He asked me what was the matter with me.We’ve heard the news that we’ll move into the new house.Whatever you say will interest us all.二、精典名题导解 选择填空
1.A computer can only do ________ you have instructed it to do.(NMET 2001)A.how B.after C.what D.when 解析：答案为C。本题考查的是名词性从句作宾语的用法。此句的引导词既作连词又在宾语从句中充当一成分，故what最合适。
2.—I drove to Zhuhai for the air show last week..—Is that _________ you had a few days off ?(NMET 99)A.why B.when C.what D.where 解析：答案为A。此题考查的是从句的用法。根据题意“我上周开车去珠海看航空展去了。”下面一句接着问：“那就是你为什么离开的原因吗？”故用why引导表语从句表示原因。3.I hate __________ when peope talk with their mouths full.(NMET 98)A.it B.that C.these D.them 解析：答案为A。本题考查的是形式宾语的用法。题意为“我讨厌人们谈话时嘴里塞满东西”。该空白处没有任何含义，而且已经用了when连接该宾语从句，所以此处只填一个形式宾语it。
1.Your skirt is really splendid, but ______we actually need is not a skirt but a new pair of shoes.A.that
B.what
C.whether
D.how.2.______made me more surprised was ______the pickpocket asked my friend to lend him some money and he agreed.A.What;that
B.That;that
C.What;whether
D.It;that 3.What do you think of this suggestion that we ______lunch at the new restaurant?
A.will have
B.are going to have
C.would have
C.have 4.I don’t know the reason ______you were absent from the meeting, but I’m sure that someone will tell me the reason ______you haven’t told me.A.why;that
B.that;why
C.because;which
D.of which;that 5.______made his mother surprised was ______Tom Smith should have been fooled by such a simple trick.A.What;that
B.What;because
C.That;what
D.That;because 6.According to Bill Gates, the idea ______we can play video games and receive E-mails without sitting at a keyboard will come true.However, it is unclear ______it will be on sale and ______it will cost.A.which;that;what
B./;whether;how much
C.that;when;what
D.that;that;how much 7.The doctors are trying their best to reduce the people’s fear ______they would be infected by the present disease called SARS.A.whether
B.which
C.when
D.that 8.Word has come ______in some western countries, demand for graduates from MBA courses has fallen down.A.that
B.while
C.when
D.as 9.Though Frances congratulates herself on her succe she sometimes wonders ______will happen to her private life.A.it
B.what
C.which
D.that.10.I think Mother would like to know ______I’ve been up to so far, so I decide to send her a quick not.A.which
B.why
C.what
D.how 2008高考链接：
（福建卷）27._____ is known to us all is that the 2008 Olympic Games will take place in Beijing.A.It
B.What
C.As
D.Which（浙江卷）4.______wants to stay in a hotel has to pay their own way.A.Anyone
B.The one
C.Whoever
D.Who（天津卷）12.The last time we had great fun was _____ we were visiting the Water Park.A.where
B.how
C.when
D.why
（重庆卷）33.All people, __ they are old or young, rich or poor, rich or poor, have been trying their best to help those in need since the disaster.A.even if
B.whether
C.no matter
D.however(上海卷)36.It has been proved ___ eating vegetables in childhood helps to protect you against serious illnees in later life.A.if
1._____ we need more practice is quite clear.A.When B.What C.That D./ 2._____ I accept the gift or refuse it is none of your busine.A.If B.Whether C.Even if D.No matter when 3._____ he is doing seems quite difficult.A.How B.That C.Which D.What 4._____ that there is another good harvest this year.A.It says B.It is said C.It was said D.He was said 5._____ that she has received a doctor„s degree.A.It‟s a splendid news
B.This is a splendid news C.It„s splendid news
D.This is splendid news 6._____ still needs to be discued.B.because
C.when
D.that A.How is the plan to be carried out B.How the plan is to be carried out C.Why is the plan carried out
D.Why the plan carried out 7._____ is unknown to us all.A.Where did she put it
B.Where she put it C.That where she put it
D.In which she put it 8._____ nothing to do with us.A.What he did is
B.What he has done is C.What did he do has
D.What he has done has 9.That„s _____ the Party called on us to do.A.what B.that C.how D.why 10.The reason why I have to go is _____ if I don„t.A.that she will be disappointed B.because she will be disappointed C.on account of her being disappointed D.that she will be disappointing 11.It was _____ he worked hard that he succeeded.A.because B.since C.as D.for 12.I have no idea _____.A.what does the word “infinity” mean
B.what the word “infinity” means C.what the meaning of the word “infinity” D.what the word “infinity” mean
13._____ do you think will teach us maths next term？
A.Whom B.Who C.What D.That 14.Are you sure _____？
A.whether she is honest
B.that she is honesty C.she is honest
D.is she honest 15.He often thinks of _____ he can do more for the four modernizations.A.what B.how C.that D.which
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