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名词性从句是一种具有名词功能的非独立分句。包括：主语从句、宾语从句、表语从句和同位语从句。纵观近年高考,名词性从句既是热点又是重点。现将其热点考点归纳如下：
热点一：
that，what引导名词性从句的用法区别
【高考真题】
例1 (2011年安徽卷)His writing is so confusing that it’s difficult to make out it is he is trying to express.
A.that
B.how
C.who
D.what
分析 答案为D。本题考查名词从句中连接词的选用,此处从句中缺少表语,所以用what。
例2 (2011年北京卷) Barbara Jones offers to her fans is honesty and happiness.
A.Which
B.What
C.That
D.Whom
分析 答案为B。本题考查名词从句中连接词的选用,此处主语从句中缺少宾语,所以用what。
【考点剖析】
（1) that引导主语从句和宾语从句，引导主语从句和宾语从句的that在从句中无任何语法作用,也就是说不做任何句子成分,只起连接作用。That 在句子中无实际意义,但是不可以省略。有时,常用it 来做形式主语或形式宾语。如：
It is said that the novel has been translated into foreign language．
（2) that引导的表语从句,用来表示某一事实,也能表示观点,意见,要求和希望等。
注意：如果句子的主语是suggestion, order, advice等名词时,后面 that 引导的表语从句用(should)+动词原形的虚拟语气形式。 如：
His suggestion is that we (should) finish the work at once.
（3) that 引导的同位语从句的作用是对先行名词作进一步说明。
We expressed the hope that they will visit our school.
（4) what引导主语从句。What在从句中充当主语,宾语等。
注意： what 引导的主语从句是较难的语言现象之一。原因是汉语中没有相对应的句法结构。 如果为强调或句子意思的需要,还可以用代词whatever 来引导主语从句。
What he couldn’t understand was why fewer and fewer people showed interest in his program.
（5) what引导表语从句。What在从句中充当主语,宾语等。
Determination is a kind of quality—and that’s what it takes to do anything well.
热点二：who, which, when, where, why, how等连接词的应用
【高考真题】
例1 (2010年湖南卷)Cindy shut the door heavily and burst into tears. No one in the office knew she was so angry.
A.where
B.whether
C.that
D.why
分析 答案为D。本题考查名词从句连接词的选用。此处句子意思是：办公室里没有人知道她为什么生气了。
例2 (2011年山东卷)I am afraid he’s more of a talker than a doer, which is he never finishes anything．
A.that
B.when
C.where
D.why
分析 答案为D。本题考查名词从句连接词的选用。此处表语从句是用来解释原因的。
例3 (2010年江苏卷)
—I prefer shutting myself in and listening to music all day on Sundays．
—That’s I don’t agree.You should have a more active life.
A.where
B.how
C.when
D.what
分析 答案为A。本题考查名词从句连接词的选用。此处句子的意思是：那是我不同意的地方。
例4 (2009年山东卷)The little girl who got lost decided to remain she was and wait for her mother.
A.where
B.what
C.how
D.who
分析 答案为A。本题考查名词从句连接词的选用。此处remain where she was的意思是：留在原来的地方。
【考点剖析】
who, which, when, where, why, how 等词的功用含义,又起连接作用,同时在从句中充当各种成分。其区别从词义上看是显而易见的,相信同学们会抓住这些难点重点。
Please remind me when the man said he was going. I may be in time to see him off.
The coach wrote an article on why the team had failed to win the game.
热点三：whatever/whoever以及whichever等的用法
【高考真题】
例1 (2010年重庆卷)To improve the quality of our products, we ask for suggestions had used the products.
A.whoever
B.who
C.whichever
D.which
分析 答案为A。本题题干中的宾语从句中缺少主语,且指人表示特别指代。Whoever意思是“不管谁”。
例2 (2009年全国I卷)Could I speak to is in charge of International Sales please？
A.who
B.what
C.whoever
D.whatever
分析 答案为C。分析同上。
【考点剖析】
whatever, whoever在从句中引导主语从句,宾语从句,表语从句,并在从句中做主语,宾语,表语等。
My elder brother is ready to accept whatever help he can get.
Whichever team wins will go through to the national championships．
热点四：whether 的用法
【高考真题】
例1 (2011年重庆卷)It is still under discussion the old bus station should be replaced with hotel or not.
A.whether
B.when
C.which
D.where
分析 答案为A。此处it是形式主语,真正的主语从句由whether引导。
【考点剖析】
引导主语从句,表语从句,名词后的同位语从句以及介词后的宾语从句时,一般不能用if,只能用whether; 与不定式连用时或引导让步状语从句时也只能用whether。引导动词后的宾语从句时可用if或者whether,但当宾语从句是否定形式时,一般用if。
They haven’t settled the question of whether it is necessary for them to buy a computer.
人越伟大，越能克制怒火。（奥维德）
热点五：同位语从句与定语从句的区别
【高考真题】
例1 (2011年天津卷) Modern science has given clear evidence smoking can lead to many diseases.
A.what
B.which
C.that
D.where
分析 答案为C。本题考查复合句。此处that引导的从句做名词evidence的同位语,即同位语从句。
例2 (2009年四川卷)News came from the school office Wang Lin had been admitted to Beijing University.
A.which
B.what
C.that
D.where
分析 答案为C。本题考查复合句。此处that引导的从句做主语news的同位语,即同位语从句。
【考点剖析】
（1) 引导词不同
引导定语从句的关系词主要有：which, that, who, whom, whose, when, why, where, as等。而同位语从句的连接词为：that, when, whether, what, where, why, how等。
（2) 先行词不同
同位语从句说明解释的名词有所限制,大多是一些表示抽象概念的名词,如：problem, order, information, suggestion, news, idea, opinion, possibility, promise, thought等。 而定语从句所修饰、限制的先行词则无限制,既可以指人,又可以指物。
（3) 语法功能不同
同位语从句是对前面的名词起补充说明的作用,由连接代词或连接副词引导,最常用的连词that不能省略,也不在从句中担任成分；而定语从句由关系代词、关系副词引导,关系代词that在从句中做主语不能省,做宾语时有时可以省略。如：
The news that we are having a meeting tomorrow is not true.(同位语从句)
This is the dictionary (that) he gave me last week. (定语从句)
（4) 涵义不同
同位语从句与所说明、解释的句词无逻辑关系,而定语从句所修饰的句词是该从句逻辑上的主语、宾语、表语、定语、状语等。
●巩
●固
●练
●习
1.Some of the scientists held the point the book said was right．
A.what; what
B.what; that
C.that; that
D.that; what
2. she couldn’t understand was fewer and fewer students showed interest in her lessons．
A.What; why
B.That; what
C.What; because
D.Why; that
3.The difficulty we now meet with is we can persuade him to tell the truth．
A.whether
B.that
C.what
D.why
4.—Look at what you are doing !
—Ah, I wonder this boot won’t fit me. I’ve been trying to put it on the wrong foot．
A.how
B.if
C.why
D.that．
5.Although most of them have no doubt he will pass the exam, I still think there is something about he has really got everything ready．
A.whether; that
B.that; whether
C.that; that
D.whether; whether
6.In some countries, is called “equality” does not really mean equal rights for all people．
A.which
B.what
C.that
D.one
7.The fact came up specific speech sounds are recognized by babies as young as 6 months old．
A.what
B.which
C.that
D.whose
8.All is a continuous supply of the basic necessities of life．
A.what is needed
B.for our needs
C.the thing needed
D.that is needed
9.The basic features of the communication process are judged in one question. Who says through what channel to whom？
A.what
B.when
C.how
D.such
10.There are signs restaurants are becoming more popular with families．
A.that
B.which
C.in which
D.whose
11. we have achieved is attributed to the guidance of our teachers．
A.Whoever
B.Whatever
C.However
D.That
It is easier to fight for principles than to live up to them. (A. E. Stevenson)
12.Because they usually receive the same score on standardized examinations, there is often disagreement as to is the better student, Bob or Helen．
A.who
B.which
C.whom
D.whose
13.I have made it clear I will never go back there．
A.when
B.that
C.where
D.however
14.His ability has never been in doubt—the question is he is prepared to work hard．
A.that
B.if
C.where
D.whether
15.There is little doubt her advice is of greater value to us．
A.that
B.whether
C.why
D.if
16.The question we ought to call in a specialist was answered by the family doctor．
A.that
B.whether
C.where
D.how
17.Sometimes we are asked we think the likely result of an action will be．
A.that
B.what
C.if
D.whether
18. some mammals came to live in the sea is not known．
A.Which
B.Since
C.Although
D.How
19.The people of the party were worried about Janet because no one knew she had gone．
A.there
B.where
C.in which
D.the place where
20.They are so alike that you can’t tell is which．
A.what
B.that
C.which
D.how
21.Although Anne is happy with her success she wonders will happen to her private life．
A.that
B.what
C.it
D.this
22.We agreed to accept they thought was the best tourist guide．
A.whatever
B.whomever
C.whichever
D.whoever
23.When I try to understand that prevents so many Americans from being as happy as one might expect, it seems to me that there are two causes．
A.why it does
B.what it does
C.what it is
D.why it is
24.The only fact most people believe nuclear war would be madness does not mean that it will not occur．
A.what
B.which
C.that
D.why
25.By success I don’t mean usually thought of when that word is used．
A.what is
B.that we
C.as you
D.all is
26.Did you want me to ask Father ？
A.when he would let us go
B.when would he let us go
C. when did he let us go
D.when he let us go
27.A new television series teaches handicapped children they can and should think about career development．
A.what
B.that
C.which
D.who
28.—I think it’s going to be a big problem.
—Yes, it would be.
—I wonder we can do about it．
A.if
B.how
C.what
D.that
29.When you answer questions in a job interview, please remember the golden rule: Always give the monkey exactly he wants．
A.what
B.which
C.when
D.that
30.Please tell me you want your coffee, black or white ？
A.when
B.what
C.how
D.which
31. she was invited to the ball made her very happy．
A.If
B.That
C.When
D.Because
32.The question came up at the meeting we had enough money for our research．
A.that
B.what
C.which
D.whether
33.Whether ways will be found to stop pollution or not is just worries the public．
A.why
B.which
C.that
D.what
34.I really wonder he has posted me many packages we worked together．
A.why; when
B.why; since
C.when; before
D.how; after
35. David says sounds right to Helen. That’s why she has made up her mind to leave with him happens．
A.Whatever; whatever
B.No matter what; whatever
C. No matter what; no matter what
D.Whatever; however
为原则而斗争容易，按原则的要求活着难。（史蒂文森）
【解析】
1.D 由整体看,该题是同位语从句,同位语从句包含一个主语从句,主语从句缺少一个成分,应填what。
2.A “她所不能理解的是为什么越来越少的学生对她的课不感兴趣。”由句意可知在应选连接词what引导主语从句,why 引导表语从句。
3.A “我们现在所面临的困难是我们能否说服他告知真情。”由句意可知应选whether引导表语从句。
4.C
5.B
6.B what 相当于the thing that. What引出的从句what is called equality在全句中作主语用。
7.C 名词fact 后接that引出同位语从句,具体说明这些名词的内容。
8.D all 在句中作主语,后常接that引出的定语从句。
9.A “沟通过程的基本特征可以用一个问题来鉴别：何人通过何种方式对谁说？”what在此相当于the things that。
10.A that引导的是同位语从句,而不是定语从句。That在该句中不作成分。
11.B “无论我们取得了什么成就都归功于老师的教导。”由句意可知应用whatever引导主语 从句。
12.A “因为她们总是在标准中取得相同的成绩,所以总是在Bob和Helen中谁是更好的学生产生歧义。”
13.B
14.D 前文中never in doubt, 即为肯定之意,而后文则表示与前文不一样的感情色彩,即有些怀疑,所以引用“whether”引导表语从句。
15.A 句意完整,用that引导同位语从句。
16.B whether 引导同位语从句,表示同位语所说明的事物具有不确定性。
17.B “有时我们会被问起我认为一种行为的结果会是怎样的。”由句意可知,应用连接词what。
18.D “一些哺乳动物如何在海洋中生存仍旧是未知的。”由句意可知,应用how引导主语从句。
19.B “党内人士都担心Janet, 因为没有人觉查到她去哪了。”由句意可知应用where引导宾语从句。
20.C which is which作为tell 的宾语,又是which 的一个宾语从句。句意为：“他们如此相像,我不能分辨哪个是哪个。”
21.B “虽然安妮对她的成功感到很高兴,但她不知道这会对她的私人生活有什么影响。”由句意可知应用what引导宾语从句且作从句的主语。
22.D whoever引导宾语从句在从句中作主语；they thought为插入成分。
23.C “当我试图认识究竟是什么使得美国人不能像其期望的那么幸福时,在我看来有两个原因。”由句意可知,应选what引导宾语从句。
24.C
25.A 分析该句结构可以看出：主句中动词mean缺少宾语,而从句中的 thought of 缺少主语。在句子和从句中都缺少成分时,应使用what 连接句子。
26.A when 引导的从句作ask 的宾语,从句为疑问形式,但从句中要用陈述句语序,且从句中应用过去将来时。
27.B that引导宾语从句作teach的直接宾语,且表句意完整。
28.C 宾语从句中do 为及物动词,其后无宾语,故用连接代词what。
29.A want为及物动词,其后无宾语,故应选择what。
30.C 分析句子结构和句意可知,应用连接副词how作宾语从句中的状语。
31.B 句意完整,应用连接词that引导主语从句。
32.D “我们是否有足够的钱用于研究这个问题被提出来。”由句意可知,应选whether引导同位语从句。
33.D 分析句子结构和句意可知,应用what作表语从句中的主语。
34.B 解这道题的关键是第二个空白,只有since引导的状语从句才能和完成时态连用。
35.A “no matter+疑问词”只能引导让步状语从句,而“疑问词+ever”既可引导让步状语从句又可以引导名词性从句。
热点一：
that，what引导名词性从句的用法区别
【高考真题】
例1 (2011年安徽卷)His writing is so confusing that it’s difficult to make out it is he is trying to express.
A.that
B.how
C.who
D.what
分析 答案为D。本题考查名词从句中连接词的选用,此处从句中缺少表语,所以用what。
例2 (2011年北京卷) Barbara Jones offers to her fans is honesty and happiness.
A.Which
B.What
C.That
D.Whom
分析 答案为B。本题考查名词从句中连接词的选用,此处主语从句中缺少宾语,所以用what。
【考点剖析】
（1) that引导主语从句和宾语从句，引导主语从句和宾语从句的that在从句中无任何语法作用,也就是说不做任何句子成分,只起连接作用。That 在句子中无实际意义,但是不可以省略。有时,常用it 来做形式主语或形式宾语。如：
It is said that the novel has been translated into foreign language．
（2) that引导的表语从句,用来表示某一事实,也能表示观点,意见,要求和希望等。
注意：如果句子的主语是suggestion, order, advice等名词时,后面 that 引导的表语从句用(should)+动词原形的虚拟语气形式。 如：
His suggestion is that we (should) finish the work at once.
（3) that 引导的同位语从句的作用是对先行名词作进一步说明。
We expressed the hope that they will visit our school.
（4) what引导主语从句。What在从句中充当主语,宾语等。
注意： what 引导的主语从句是较难的语言现象之一。原因是汉语中没有相对应的句法结构。 如果为强调或句子意思的需要,还可以用代词whatever 来引导主语从句。
What he couldn’t understand was why fewer and fewer people showed interest in his program.
（5) what引导表语从句。What在从句中充当主语,宾语等。
Determination is a kind of quality—and that’s what it takes to do anything well.
热点二：who, which, when, where, why, how等连接词的应用
【高考真题】
例1 (2010年湖南卷)Cindy shut the door heavily and burst into tears. No one in the office knew she was so angry.
A.where
B.whether
C.that
D.why
分析 答案为D。本题考查名词从句连接词的选用。此处句子意思是：办公室里没有人知道她为什么生气了。
例2 (2011年山东卷)I am afraid he’s more of a talker than a doer, which is he never finishes anything．
A.that
B.when
C.where
D.why
分析 答案为D。本题考查名词从句连接词的选用。此处表语从句是用来解释原因的。
例3 (2010年江苏卷)
—I prefer shutting myself in and listening to music all day on Sundays．
—That’s I don’t agree.You should have a more active life.
A.where
B.how
C.when
D.what
分析 答案为A。本题考查名词从句连接词的选用。此处句子的意思是：那是我不同意的地方。
例4 (2009年山东卷)The little girl who got lost decided to remain she was and wait for her mother.
A.where
B.what
C.how
D.who
分析 答案为A。本题考查名词从句连接词的选用。此处remain where she was的意思是：留在原来的地方。
【考点剖析】
who, which, when, where, why, how 等词的功用含义,又起连接作用,同时在从句中充当各种成分。其区别从词义上看是显而易见的,相信同学们会抓住这些难点重点。
Please remind me when the man said he was going. I may be in time to see him off.
The coach wrote an article on why the team had failed to win the game.
热点三：whatever/whoever以及whichever等的用法
【高考真题】
例1 (2010年重庆卷)To improve the quality of our products, we ask for suggestions had used the products.
A.whoever
B.who
C.whichever
D.which
分析 答案为A。本题题干中的宾语从句中缺少主语,且指人表示特别指代。Whoever意思是“不管谁”。
例2 (2009年全国I卷)Could I speak to is in charge of International Sales please？
A.who
B.what
C.whoever
D.whatever
分析 答案为C。分析同上。
【考点剖析】
whatever, whoever在从句中引导主语从句,宾语从句,表语从句,并在从句中做主语,宾语,表语等。
My elder brother is ready to accept whatever help he can get.
Whichever team wins will go through to the national championships．
热点四：whether 的用法
【高考真题】
例1 (2011年重庆卷)It is still under discussion the old bus station should be replaced with hotel or not.
A.whether
B.when
C.which
D.where
分析 答案为A。此处it是形式主语,真正的主语从句由whether引导。
【考点剖析】
引导主语从句,表语从句,名词后的同位语从句以及介词后的宾语从句时,一般不能用if,只能用whether; 与不定式连用时或引导让步状语从句时也只能用whether。引导动词后的宾语从句时可用if或者whether,但当宾语从句是否定形式时,一般用if。
They haven’t settled the question of whether it is necessary for them to buy a computer.
人越伟大，越能克制怒火。（奥维德）
热点五：同位语从句与定语从句的区别
【高考真题】
例1 (2011年天津卷) Modern science has given clear evidence smoking can lead to many diseases.
A.what
B.which
C.that
D.where
分析 答案为C。本题考查复合句。此处that引导的从句做名词evidence的同位语,即同位语从句。
例2 (2009年四川卷)News came from the school office Wang Lin had been admitted to Beijing University.
A.which
B.what
C.that
D.where
分析 答案为C。本题考查复合句。此处that引导的从句做主语news的同位语,即同位语从句。
【考点剖析】
（1) 引导词不同
引导定语从句的关系词主要有：which, that, who, whom, whose, when, why, where, as等。而同位语从句的连接词为：that, when, whether, what, where, why, how等。
（2) 先行词不同
同位语从句说明解释的名词有所限制,大多是一些表示抽象概念的名词,如：problem, order, information, suggestion, news, idea, opinion, possibility, promise, thought等。 而定语从句所修饰、限制的先行词则无限制,既可以指人,又可以指物。
（3) 语法功能不同
同位语从句是对前面的名词起补充说明的作用,由连接代词或连接副词引导,最常用的连词that不能省略,也不在从句中担任成分；而定语从句由关系代词、关系副词引导,关系代词that在从句中做主语不能省,做宾语时有时可以省略。如：
The news that we are having a meeting tomorrow is not true.(同位语从句)
This is the dictionary (that) he gave me last week. (定语从句)
（4) 涵义不同
同位语从句与所说明、解释的句词无逻辑关系,而定语从句所修饰的句词是该从句逻辑上的主语、宾语、表语、定语、状语等。
●巩
●固
●练
●习
1.Some of the scientists held the point the book said was right．
A.what; what
B.what; that
C.that; that
D.that; what
2. she couldn’t understand was fewer and fewer students showed interest in her lessons．
A.What; why
B.That; what
C.What; because
D.Why; that
3.The difficulty we now meet with is we can persuade him to tell the truth．
A.whether
B.that
C.what
D.why
4.—Look at what you are doing !
—Ah, I wonder this boot won’t fit me. I’ve been trying to put it on the wrong foot．
A.how
B.if
C.why
D.that．
5.Although most of them have no doubt he will pass the exam, I still think there is something about he has really got everything ready．
A.whether; that
B.that; whether
C.that; that
D.whether; whether
6.In some countries, is called “equality” does not really mean equal rights for all people．
A.which
B.what
C.that
D.one
7.The fact came up specific speech sounds are recognized by babies as young as 6 months old．
A.what
B.which
C.that
D.whose
8.All is a continuous supply of the basic necessities of life．
A.what is needed
B.for our needs
C.the thing needed
D.that is needed
9.The basic features of the communication process are judged in one question. Who says through what channel to whom？
A.what
B.when
C.how
D.such
10.There are signs restaurants are becoming more popular with families．
A.that
B.which
C.in which
D.whose
11. we have achieved is attributed to the guidance of our teachers．
A.Whoever
B.Whatever
C.However
D.That
It is easier to fight for principles than to live up to them. (A. E. Stevenson)
12.Because they usually receive the same score on standardized examinations, there is often disagreement as to is the better student, Bob or Helen．
A.who
B.which
C.whom
D.whose
13.I have made it clear I will never go back there．
A.when
B.that
C.where
D.however
14.His ability has never been in doubt—the question is he is prepared to work hard．
A.that
B.if
C.where
D.whether
15.There is little doubt her advice is of greater value to us．
A.that
B.whether
C.why
D.if
16.The question we ought to call in a specialist was answered by the family doctor．
A.that
B.whether
C.where
D.how
17.Sometimes we are asked we think the likely result of an action will be．
A.that
B.what
C.if
D.whether
18. some mammals came to live in the sea is not known．
A.Which
B.Since
C.Although
D.How
19.The people of the party were worried about Janet because no one knew she had gone．
A.there
B.where
C.in which
D.the place where
20.They are so alike that you can’t tell is which．
A.what
B.that
C.which
D.how
21.Although Anne is happy with her success she wonders will happen to her private life．
A.that
B.what
C.it
D.this
22.We agreed to accept they thought was the best tourist guide．
A.whatever
B.whomever
C.whichever
D.whoever
23.When I try to understand that prevents so many Americans from being as happy as one might expect, it seems to me that there are two causes．
A.why it does
B.what it does
C.what it is
D.why it is
24.The only fact most people believe nuclear war would be madness does not mean that it will not occur．
A.what
B.which
C.that
D.why
25.By success I don’t mean usually thought of when that word is used．
A.what is
B.that we
C.as you
D.all is
26.Did you want me to ask Father ？
A.when he would let us go
B.when would he let us go
C. when did he let us go
D.when he let us go
27.A new television series teaches handicapped children they can and should think about career development．
A.what
B.that
C.which
D.who
28.—I think it’s going to be a big problem.
—Yes, it would be.
—I wonder we can do about it．
A.if
B.how
C.what
D.that
29.When you answer questions in a job interview, please remember the golden rule: Always give the monkey exactly he wants．
A.what
B.which
C.when
D.that
30.Please tell me you want your coffee, black or white ？
A.when
B.what
C.how
D.which
31. she was invited to the ball made her very happy．
A.If
B.That
C.When
D.Because
32.The question came up at the meeting we had enough money for our research．
A.that
B.what
C.which
D.whether
33.Whether ways will be found to stop pollution or not is just worries the public．
A.why
B.which
C.that
D.what
34.I really wonder he has posted me many packages we worked together．
A.why; when
B.why; since
C.when; before
D.how; after
35. David says sounds right to Helen. That’s why she has made up her mind to leave with him happens．
A.Whatever; whatever
B.No matter what; whatever
C. No matter what; no matter what
D.Whatever; however
为原则而斗争容易，按原则的要求活着难。（史蒂文森）
【解析】
1.D 由整体看,该题是同位语从句,同位语从句包含一个主语从句,主语从句缺少一个成分,应填what。
2.A “她所不能理解的是为什么越来越少的学生对她的课不感兴趣。”由句意可知在应选连接词what引导主语从句,why 引导表语从句。
3.A “我们现在所面临的困难是我们能否说服他告知真情。”由句意可知应选whether引导表语从句。
4.C
5.B
6.B what 相当于the thing that. What引出的从句what is called equality在全句中作主语用。
7.C 名词fact 后接that引出同位语从句,具体说明这些名词的内容。
8.D all 在句中作主语,后常接that引出的定语从句。
9.A “沟通过程的基本特征可以用一个问题来鉴别：何人通过何种方式对谁说？”what在此相当于the things that。
10.A that引导的是同位语从句,而不是定语从句。That在该句中不作成分。
11.B “无论我们取得了什么成就都归功于老师的教导。”由句意可知应用whatever引导主语 从句。
12.A “因为她们总是在标准中取得相同的成绩,所以总是在Bob和Helen中谁是更好的学生产生歧义。”
13.B
14.D 前文中never in doubt, 即为肯定之意,而后文则表示与前文不一样的感情色彩,即有些怀疑,所以引用“whether”引导表语从句。
15.A 句意完整,用that引导同位语从句。
16.B whether 引导同位语从句,表示同位语所说明的事物具有不确定性。
17.B “有时我们会被问起我认为一种行为的结果会是怎样的。”由句意可知,应用连接词what。
18.D “一些哺乳动物如何在海洋中生存仍旧是未知的。”由句意可知,应用how引导主语从句。
19.B “党内人士都担心Janet, 因为没有人觉查到她去哪了。”由句意可知应用where引导宾语从句。
20.C which is which作为tell 的宾语,又是which 的一个宾语从句。句意为：“他们如此相像,我不能分辨哪个是哪个。”
21.B “虽然安妮对她的成功感到很高兴,但她不知道这会对她的私人生活有什么影响。”由句意可知应用what引导宾语从句且作从句的主语。
22.D whoever引导宾语从句在从句中作主语；they thought为插入成分。
23.C “当我试图认识究竟是什么使得美国人不能像其期望的那么幸福时,在我看来有两个原因。”由句意可知,应选what引导宾语从句。
24.C
25.A 分析该句结构可以看出：主句中动词mean缺少宾语,而从句中的 thought of 缺少主语。在句子和从句中都缺少成分时,应使用what 连接句子。
26.A when 引导的从句作ask 的宾语,从句为疑问形式,但从句中要用陈述句语序,且从句中应用过去将来时。
27.B that引导宾语从句作teach的直接宾语,且表句意完整。
28.C 宾语从句中do 为及物动词,其后无宾语,故用连接代词what。
29.A want为及物动词,其后无宾语,故应选择what。
30.C 分析句子结构和句意可知,应用连接副词how作宾语从句中的状语。
31.B 句意完整,应用连接词that引导主语从句。
32.D “我们是否有足够的钱用于研究这个问题被提出来。”由句意可知,应选whether引导同位语从句。
33.D 分析句子结构和句意可知,应用what作表语从句中的主语。
34.B 解这道题的关键是第二个空白,只有since引导的状语从句才能和完成时态连用。
35.A “no matter+疑问词”只能引导让步状语从句,而“疑问词+ever”既可引导让步状语从句又可以引导名词性从句。