高中英语语法-名词性从句-全
高中英语教资语法点-从句
名词性从句 Noun clause（包括主语从句、宾语从句、表语从句和同位语从句）定义：A noun clause is a dependent clause that acts as a noun in a sentence. Noun clauses will contain a subject and a verb, but they cannot stand alone in a sentence. It must always be paired with a main clause.1.主语从句 subjective clause定义：A noun clause is a clause that plays the role of a noun. We use it as subject placeholder.结构：(1)主语从句（subject clause）+谓语（predicate）例句：what she said is right.(2)It 形式主语（formal subject）+谓语（predicate）+主语从句例句：It is important to arrive on time.2.宾语从句 objective clause定义：objective clause is clause that acts as an object in a sentence. It often follows a verb. 结构：{subject} + {verb} +(that可省略)+ {object clause}例句：I know (that) he is lying.I didn’t realize (that) I was late.3.表语从句 predicative clause定义：A predicative clause is a clause that follows a linking verb（系动词）and describes the subject of the sentence. It may be introduced by conjunctions such as that, whether, as, because, A predicative clause may be introduced by conjunctions（连词）, such as that, whether, as, as if, because, or connectives (连接词). Connectives many be conjunctive pronouns (连接代词)(who, whom, what, whose, which, whoever, whatever) or conjunctive adverbs (连接副词) (where, wherever, when, whenever, how and why).结构：Subject+ linking verb+ predicative clause例句：The regulation was that the first examination should be done in writing.Our proposal is that you should join in.Their suggestion was that no one should interfere.注：if不能引导表语从句。
高中英语语法-名词性从句 16张PPT
一个从句只能有一个引导词。
缺失？
That 引导的主从、表从、同从时一般不省略。
考法
考法1 识别名词性从句的种类 主谓到从句 考法2 确定从句结构和意义是否完整，结合句子意思填 写改正适当的连接词。 a. 从句结构完整，用从属连词，陈述事实用that，表
示疑问“是否”用if或者whether。 b. 从句缺少主宾表，则考虑用连接代词。 c. 从句 缺少状语，则用连接代词。
I didn面’t紧kn跟owowr nhoetth时er 只or 能no用t swhehweaths erera.dy. 5.I want to know whether to have a meeting today.
加不定式时
关键知识梳理
连接 代词
what
Who
which
功
能
在从句中充当主宾表 在从句中充当主宾表（whom） 在从句中充当定语，“哪一个”
It做形式主语
1.It +be +adj.+that从句
2.It +be +名词词组（no wonder ,an honor ,a pity ,etc)+that从句
3.It +be +过去分词 （said,reported,expected,announced,thought ,believed ,ect)+that 从句
改错
1.(2016.银川二中一模）For one thing ,that you
are studying is badly needed nowadays in our
country.
That改为
what
2.(2016.遵义航天高级中学模拟）And you
高中英语语法总结大全-名词性从句
高中英语语法总结大全之名词性从句名词性从句在句子中起名词作用的句子叫名词从句（Noun Clauses)。
名词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、介词宾语等，因此根据它在句中不同的语法功能，名词从句又可分别称为主语从句、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：连接词：that，whether,if 不充当从句的任何成分）连接代词：what， whatever， who， whoever, whom, whose， which.连接副词：when, where， how, why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不可省略。
That she was chosen made us very happy。
We heard the news that our team had won。
比较：whether与if 均为”是否"的意思。
但在下列情况下，whether 不能被if 取代：1. whether引导主语从句并在句首2。
引导表语从句3. whether从句作介词宾语4. 从句后有"or not"Whether he will come is not clear.大部分连接词引导的主语从句都可以置于句末，用 it 充当形式主语。
It is not important who will go。
It is still unknown which team will win the match.名词性that—从句1)由从属连词that引导的从句叫做名词性that—从句。
That只起连接主句和从句的作用,在从句中不担任任何成分,本身也没有词义.名词性that—从句在句中能充当主语、宾语、表语、同位语和形容词宾语，例如：主语：That he is still alive is sheer luck.他还活着全靠运气.宾语：John said that he was leaving for London on Wednesday。
高中名词性从句全面讲解及练习含答案
高中英语讲义---- 名词性从句（主从、表从、宾从，同从）1，陈述句做名从用连词that + SV, that 表主句确定从句完好，不做成分。
主从可用it 做形式主语，宾从第一个that 可省略。
You study hard.主从：That you study hard is known to us.= It is known to us that you study hard.表从：My opinion is that you study hard .宾从：I think (that) you study hard. …and that (不能省略)….同从：My opinion that you study hard is known to us. *比拟同从和主从！●一般抽象名词后对其进展说明和说明的完好句子就是其同位语从句，不完好就是定语从句。
I appreciate your idea that we have an exam every week. （that后完好—同从）I appreciate your idea that you came up with last time.（that后不完好---定从）2，一般问句做名从用连词whether(是否) + SV，whether表主句不愿定从句完好，宾从中可用if（介词后或宾从后有or not时只用whether）。
Does your friend like English ?主从：Whether your friend likes English isn’t clear .=It isn’t clear whether your friend likes English.表从：My question is whether your friend likes English.宾从：I don’t know whether/ if your friend likes English.同从：My question whether your friend likes English isn’t clear.3, 特殊问句做名从用疑问词（连词）+ SV, 疑问词做主语时干脆+谓语。
高中英语语法系列：名词性从句
高中英语语法系列：名词性从句考点一：主语从句 1.主语从句的引导词that ，whether ，i 连接词f 只起连接作用，不在从句中作成分what ，who ，whom ，which ，whichever ，whatever ，whoeve 连接代词r 在从句中作主语、宾语、表语或定语when ，where ，how ，wh 连接副词y在从句中作状语Your support is important to our work.Whatever you can do helps.Where Li Bai ，a great Chinese poet ，was born is known to the public ，but some won't accept it.[易错提示](1)that 引导主语从句时一般不省略。
(2)当主语从句位于句首时，常用whether 引导，而不用if 。
2.形式主语it 作形式主语的常见句型：(1)It ＋be ＋形容词(necessary/likely/important/certain 等)＋that 从句(2)It ＋be ＋名词(短语)(a pity/a shame/no wonder 等)＋that 从句(3)It ＋be ＋过去分词(said/told/reported 等)＋that 从句(4)It ＋不及物动词(seem ，appear ，happen ，matter 等)＋that 从句It is uncertain what side effect the medicine will bring about ，although about two thousand patients have taken it.It doesn't matter whether you pay by cash or credit card in this store.【随堂练习：语法填空】1.(2019·长春月考)It remains to be seen policy can be put into practice the newly formed committee's.2.in our school breaks the rule will be punished.3.(2019·安溪模拟)love for his son struck me most in the movie was the father's deep.4.(2019·龙岩五校期中)Therefore,it is advisable treat them with care you should value and.【参考答案】1.whether2.Whoever3.What4.that考点二：宾语从句 1.宾语从句的引导词that ，whether ，i 连接词f只起连接作用，不在从句中作成分what ，who ，whom ，which ，whichever ，whatever ，whoeve 连接代词r在从句中作主语、宾语、表语或定语连接副词when ，where ，how ，why在从句中作状语She asked me whether I had returned the books to the library ，and I admitted that I hadn't.Our teacher always tell us to believe in what we do and who we are if we want tosucceed.[易错提示](1)that引导宾语从句时，常被省去，但下列情况下不能省略：①动词后跟有多个that引导的宾语从句时，只有第一个that可省略，其余的不可省略；②宾语从句前有插入语时；③that引导的从句位于句首时。
高中英语知识点归纳名词性从句
高中英语知识点归纳名词性从句名词性从句是英语中的一个重要语法知识点，它在句子中起着名词的作用。
名词性从句一般由连接词引导，可以作主语、表语、宾语、同位语等。
它的运用能够使句子更加丰富多样，增加表达的灵活性。
本文将对名词性从句的几种常见情况进行归纳总结。
一、名词性从句作主语名词性从句可以作为句子的主语，它承担了动词的逻辑主语的地位。
常用的连接词有：that, whether, if等。
1. 引导词为that的情况：例如：That he didn't come as he had promised was disappointing.翻译：他没有按照承诺的那样来，真令人失望。
2. 引导词为whether/if的情况：例如：Whether he will come or not remains unknown.翻译：他是否会来还是个未知数。
二、名词性从句作表语名词性从句可以作为句子的表语，表达主语的性质、特点、状态等。
常用的连接词有：that, whether, what等。
例如：It is unclear whether he is telling the truth or not.翻译：他是否在说真话还不清楚。
三、名词性从句作宾语名词性从句可以作为句子的宾语，接在及物动词、介词后面。
常用的连接词有：that, whether, if, what, who, whom, which, whose等。
1. 当宾语从句是及物动词的宾语时，常用连接词是that。
例如：He said that he would come tomorrow.翻译：他说他明天会来。
2. 当宾语从句是介词的宾语时，常用连接词是whether/if, 当介词为介词to时，连接词也可以用为不定式to。
例如：She is not sure about whether/if he will join us.翻译：她不确定他是否会加入我们。
高中英语名词性从句语法讲解
This is how they overcome the difficulties.
My strongest memory is when I attended an
American wedding.
5. 其他连词as if, because, as, as though 引导的表语从句
C．表示某种状态的：remain, keep, prove, continue, stay等.
1. that 引导的表语从句 that 仅起连接作用，无意义，在句中不作任何成分， 通常不可省略。这种从句往往是对主句主语的内容起 进一步解释的作用。
e.g. The chance is that one smoker in four will die from
think等变为否定形式;
e.g. I don’t think you are right．
(5) 在think，believe，imagine，suppose，guess，hope
等动词以及 I’m afraid 等后，可用so代替一个一定的
宾语从句，还可用not代替一个否定的宾语从句：
e.g. 一Do you believe it will clear up你认为天气会转晴吗
连接副词：when, where, how, why 连接代词和连接副词一般做句子的某一成份
The Subject Clause
用作主语的从句叫主语从句。引导主语从句的 连接词有：
连词that, whether；
连接代词what, whatever, who, whoever, whom, whomever, whose, which,
高中英语语法-名词性从句精讲(共73张PPT)
Whoever wants the book may have it. I’ll do whatever I can to help him. Buy whichever is cheapest.
连接副词 when, where, how, why
when • When they will start is unknown yet. where • Where she has gone is a mystery. how • How this happened is not clear. why • Why he did that wasn’t quite unclear.
主语从句关联词 连词 that, whether 连接代词 what, who, whom, which 连接副词 when, where, how, why
连词 that, whether
只起连接作用 在从句中不充当任何句子成分
• That he will win is certain.
• It has been reported that sales of beef in China will increase.
宾语从句关联词 连词 that, whether; if 连接代词 what, who, whom, whose, which 连接副词 when, where, how, why
• I doubt _______ he will come soon. • I do not doubt _____ he will come soon. • Do you doubt _____ he will come soon?
• what surprised me was what he said.
(完整版)高中英语语法总结-名词性从句
名词性从句在句子中起名词作用的句子叫名词性从句 (Noun Clauses)。
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、介词宾语等，因此根据它在句中不同的语法功能，名词从句又可分别称为主语从句、宾语从句、表语从句和同位语从句。
第一节知识点讲解顾名思义，主语从句在句子中作主语。
有时本身出现在主语的位置上，也有时出于句子结构的考虑退到句子的尾部，前面用形式主语 it 代替。
从句作主语时，谓语动词一般为单数形式。
如 :What I saw was beyond any verbal description.That his hair was turning grey worried him a bit.Why the company denied the contract is still unknown.When and where the government will build a city square is under discussion.It is pretty annoying that a small part of the machine is missing.It remains to be seen whether the new novel will be well received.Tips: 主语从句的 that 绝对不能省去。
因为句子是不能做主语的，故用 that 引导。
若去掉则没有了主语，而宾语从句的 that 可省。
主语从句： That he is right is known to all of us.宾语从句： We all know (that) he is right.1.It 作形式主语和 it 引导强调句的比较It 作形式主语代替主语从句，主要是为了平衡句子结构，主语从句的连接词没有变化。
而 it 引导的强调句则是对句子某一部分进行强调，无论强调的是什么成分，都可用连词that。
高中英语名词性从句课件(38张ppt)
(that在从句中不充当任何成份)
The idea （that/which） he gave surprises many people．
(that在从句中作gave 的宾语)
宾语从句须注意
1) 由疑问词引导的从句中, 词序按陈述句 顺序排列。
e.g. I wonder what he is doing. 注意：I wonder what was wrong /the matter
with him. 2)当主句的谓语动词是过去时的时候, 从句的 谓语动词应用相应的过去时。自然规律和客观 真理例外。
4) That在其他名词性从句中均不可省略，只有 在宾语从句中that有时可以省略，但在并列 的宾语从句中第二个that 不可省略。
e.g. He said (that) he would leave and that he would never come back again.
5) 否定的转移 若主句谓语动词为think, consider, suppose, believe, expect, fancy, guess, 等, 其后的宾语 从句若含有否定意义, 一般要把否定词转移到 主句谓语上, 从句谓语用肯定式。 e.g. I /we don’t think this dress fits you Well, does it?
3. 连接代词: what, whatever, who, whoever, whom,whose, which（哪个）： 不仅起到连接一个句子的作用,同时也是从句 的一个组成部分；从句不完整，缺成份。
高中英语语法---名词性从句
一．宾语从句的类型：1.动词宾语从句引导词：that, if ,whether, who ,what, when ,where，why, how…….等，大部分宾语从句直接跟在动词后。
I thought that he was very clever.2.有些宾语从前有间接宾语。
He told me what I should do.The boy asked me how to solve this question.3.如果宾从后有宾语补足语，要用形式宾语it，而将从句放在补足语的后面。
I thought it strange that he failed to call me.I felt it very astonished why my son didn’t love me.4.将think, believe ,suppose, expect等动词后面宾语从句的否定转移到主句中，叫作“否定转移”。
I don’t believe that he will cheat me.I don’t think that she is a single one.5.某些动词：insist ,demand, suggest, order, require, request等，宾从要用虚拟语气。
He demanded that he (should) be set free.The doctor suggested that we (should) do a general check – up.6.介词宾语从句①.一般介词后接wh-连接词；We’re talking about what we do next.②.Except, but, besides ,表示“除了”的意思，作介词后接that.I know nothing about her except that she lives here.7.形容词宾语从句在sure ,certain, glad, sorry, happy, afraid, satisfied…..等。
【语法课件】高考英语名词性从句讲解(最全版)
1、主语从句 ( subject clause )
分类
2、表语从句 ( predicative clause ) 3、宾语从句 ( object clause )
4、同位语从句 ( appositive clause )
引导词
从属连词（3个）：that 、if、 whether
连接代词 （9个）：who、 whom 、 what、 which、 whose、 whoever whomever、 whatever、 whichever、
7.The doctor can hardly answer the question
_w__h_e_t_her the old man will recover soon.
名词性从句引导词的用法（2）：
“who”---“谁”、作主语、起连接作用
“whom”---“谁”、作宾语、起连接作用
连接代词
（表语从句）
3、You could choose whichever book you want .
（宾语从句）
名词性从句引导词的用法（4）：
“when”-- “什么时候”、作状语、起连接作用
连接副词
“where”-- “什么地方”、作状语、起连接作用 “why”---- “为什么”、作状语、起连接作用
表语从句
“whether”---“是否”、不作成份、起连接作用
1、Whether she will come back on time depends on
weather（. 主语从句）
2、The problem is whether you could give us some
valuable advice（. 表语从句）（宾语从句）
完整版)高中英语名词性从句详解
完整版)高中英语名词性从句详解名词性从句可以作为主句的主语、表语、宾语和同位语。
它们分为主语从句、表语从句、宾语从句和同位从句。
宾语从句作为复合句中的主句及物动词的宾语，也可以作为介词或某些形容词的宾语。
它不担任成分，只起连接作用。
连接词可以是从属连词、关系代词、关系副词。
从属连词包括that、whether、if；关系代词包括who、whom、whose、what、which；关系副词包括when、where、why、how。
这些词既担任成分，又起连接作用。
宾语从句的例子有：I think (that) you will like the pictures。
He has e what he wanted to be ten years ago。
I don’t know why Jane was late for school this morning。
The teacher is pleased with what she said。
I'm afraid that I can't go to the party.在宾语从句中，由that引导的从句可以省略，但如果从句是并列句时，第二个分句前的that不可省略。
另外，宾语从句中的时态要与主句呼应，如果主句动词是过去时态，从句则要用相应的过去时态。
如果从句表示的是客观真理、科学原理或自然现象，从句仍用现在时态。
如果主语谓语动词为think、consider、suppose、believe、expect、guess、imagine等，其后的宾语从句若含有否定意义，一般要把否定词转移到主句谓语上，从句谓语用肯定式。
XXX。
It is often said that traveling broadens the mind。
I XXX I was determined to carry out the plan。
I consider it XXX。
高中英语语法：名词性从句篇
高中英语语法：名词性从句篇一、that 从句1、主语从句（1）that从句作主语时，常用it作形式主语，常见的句型有：It+be+形容词+that从句It+be+名词词组（no wonder, an honor, a good thing, a pity, no surprise, etc.）+that从句It+be+过去分词（said, reported, thought, expected, decided, announced, arranged, etc.）+that从句（2）that可以省略，但that从句位于句首时，that不能省略。
2、宾语从句（1）常见的可以接that从句作宾语的动词有see, say, know, imagine, discover, believe, tell, show, think, consider, be sure, be afraid等。
在可以接复合宾语的动词之后，如think, make, consider等，可以用it作形式宾语。
（2）That从句一般不能充当介词宾语，偶尔可作except, in 的宾语。
3、表语从句（that不可省略）4、同位语从句连词that引导同位语从句时，应在某些抽象名词之后，如：fact, hope, desire, thought, suggestion, idea, news, problem, possibility等，对前面的名词起补充说明的作用，that在从句中不担当任何成分，不能省略。
二、whether/if从句1、在表语从句和同位语从句中只能用whether不能用if;当主语从句放于句首时，只能用whether 不用if;当it作形式主语，主语从句放在句末时用whether或if均可；discuss后引导宾语从句时，必须用whether。
2、在宾语从句中：（1）及物动词后：whether从句中不能有否定式，宾语从句为否定句时用if；if不能与or not连用，但可以用whether or not；whether后可以加不定式。
高中英语名词性从句知识点含练习
高中英语名词性从句知识点（含练习）基础回顾1.表语：表语用来说明主语的身份、性质、品性、特征和状态的，表语常由名词、形容词、副词、介词短语、动词的-ing、不定式、从句来充当，它常位于系动词(be, become, appear, seem,look,sound,feel,get,smell等词)之后。
如：Her job is selling computers. 此句表语为selling computers如果句子的表语也是由一个句子充当的，那么这个充当表语的句子就叫做表语从句。
2.同位语：一个名词(或其它形式)对另一个名词或代词进行解释或补充说明，这个名词(或其它形式)就是同位语。
如Mr. Smith,our new teacher,is very kind to us. 我们的新老师史密斯先生对我们很好。
Mr.Smith是主语our new teacher的同位语，指同一人。
同位语从句I heard the news that our team had won．我听到了我们队获胜的消息。
that our team had won 解释news的具体内容，是同位语正文一、定义在复合句中具有名词的性质的作主语、表语、同位语、宾语的从句叫名词性从句。
因此，我们把主语从句、表语从句、同位语从句和宾语从句这四种从句统称为名词性从句。
That he finished writing the composition in such a short time surprised us all他在很短的时间内写完作文让我们都很惊讶 (主语从句)The trouble is that she has lost his address. 麻烦的是她把他的地址搞丢了。
（表语从句）They have no idea at all where he has gone. 他们不知道他去什么地方了。
（同位语从句）Do you remember how he came? 你记得他怎么来的么？（宾语从句）二、语序名词性从句要采用陈述句语序。
高中英语语法--名词性从句[全套课件]
![高中英语语法--名词性从句[全套课件]](https://img.taocdn.com/s3/m/6590a3318e9951e79a89272f.png)
what 在从句中作主语、宾语。
3) _W__h_a_t_w_e__n_e_e_d_is more practice.(我们所需要的）
When 在从句中作状语
When we will begin the meeting 4）————————————————is under discussion.（我
I don’t know about the man, Mr. White. 同位语
I don’t know about the fact that he is a teacher.
名词性从句的作用相当于名词，因此主语从句、 表语从句 、宾语从句和同位语从句分别作主句 的主语、表语、宾语和同位语。
们什么时候开始会议）
注意一:主语从句后置!
为了避免主语冗长,句子头重脚轻,经常用it作形式主语,主语从 句放在后面作真正的主语. That we shall be late is certain. -- It’s certain that we shall be late.
1. That the earth is round is known to all.
-- It’s known to all that the earth is round.
2. That you missed the chance is a pity.
-- It is a pity that you missed the chance.
这样就构成了下面一些常用句型:
It is +adj/n that……(strange/a pity…)
Who will wiБайду номын сангаас the match is still unknown.
高中英语句法大全----名词性从句
高中英语句法大全----名词性从句名词性从句一.概念名词性从句共有四种:主语从句,表语从句,宾语从句和同位语从句二.相关知识点精讲1．主语从句：主语从句在整个句子中作主语。
(1)不同于其它的连词，它不充当句子的成分，只是单纯的连接词，通常不可以省略。
分句置于句首时，that绝对不可以省略。
That the driver could not control his war was obvious.It was obvious that the driver could not control his car.(2)if 不能用在主语从句中，而是用whetherWhether he left (or not) is unknown(3)当主语从句作主语时，谓语动词一般用第三人称单数，下面这个句型例外。
What we need is more time and money.What we need are many more books.2.表语从句：表语从句出现在系动词后，充当表语。
The trouble is that we are short of money.Go and get your coat. It’s where you left it.(1) 引导表语从句除了上述三类词外还有because, as if/ as though等等The reason (why/for which…..) is that ……It/This/That is because……(2) 连系动词“appear, look, seem”的两个常用句型It seems/appears that….It looks/seems as if/as though……(与事实相符用陈述语气，与事实相反用虚拟语气) (3) as 也可以引导表语从句Things are not always as they seem to be3. 宾语从句：及物动词，形容词和介词后加宾语从句作其宾语。
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高中语法之名词性从句一，复习句型1，主+系+表Li Lei is a Chinese boy. （Li Lei 是名词，作主语。
）2，主+VI(+介+宾)He arrived. (arrive 就是不及物动词。
)3，主+VT+宾He enjoys music.(enjoy 是及物动词，宾语为music)二，名词性从句的概念句子中的从句部分，作用相当于名词，可分别作主句的主语、表语、宾语和同位语。
三，名词性从句的分类主语从句What you said sounds reasonable.表语从句This is what I was asked to do.宾语从句Nobody knows who broke the glass.同位从句The idea that we'll go out for a picnic is great.四，that引导的名词性从句六、名词性that-从句1）由从属连词that引导的从句叫做名词性that-从句。
That只起连接主句和从句的作用，在从句中不担任任何成分，本身也没有词义。
名词性that-从句在句中能充当主语、宾语、表语、同位语和形容词宾语。
主语：That she is still alive is her luck.她还活着全靠运气。
宾语：John said that he was leaving for London on Wednesday.约翰说他星期三要到伦敦去。
表语：The fact is that he has not been seen recently.事实是近来谁也没有见过他。
同位语：The fact that he has not been seen recently disturbs everyone in his office. 近来谁也没有见过他，这一事实令办公室所有的人不安。
形容词宾语：I am glad that you are satisfied with your job. 你对工作满意我感到很高兴。
2）That-从句作主语通常用it作先行词，而将that-从句置于句末，例如：It is quite clear that the whole project is doomed to failure.很清楚，整个计划注定要失败。
It's a pity that you should have to leave.你非走不可真是件憾事。
用it作形式主语的that-从句有以下四种不同的搭配关系：a.It + be +形容词+ that-从句It is necessary that…有必要……It is important that…重要的是……It is obvious that…很明显……b.It + be + -ed 分词+ that-从句It is believed that…人们相信……It is known to all that…众所周知……It has been decided that…已决定……c.It + be +名词+ that-从句It is common knowledge that………是常识It is a surprise that…令人惊奇的是……It is a fact that…事实是……d. It +不及物动词+ that-从句It appears that…似乎……It happens that…碰巧……It occurred to me that…我突然想起……七、名词性wh-从句1）由wh-词引导的名词从句叫做名词性wh-从句。
Wh-词包括who, whom,. whose, whoever, what, whatever, which, whichever等连接代词和where, when, how, why等连接副词。
Wh-从句的语法功能除了和that-从句一样外，还可充当介词宾语、宾语补语和间接宾语等，例如：主语：How the book will sell depends on its author.书销售如何取决于作者本人。
直接宾语：In one's own home one can do what one likes.在自己家里可以随心所欲。
间接宾语：The club will give whoever wins a prize.俱乐部将给得胜者设奖。
表语：My question is who will take over president of the Foundation.我的问题是谁将接任该基金会主席职位。
宾语补足语：She will name him whatever she wants to. 她高兴给他起什么名字就取什么名字。
同位语：I have no idea when he will return.我不知道他什么时候回来。
形容词宾语：I'm not sure why she refused their invitation.我尚不能肯定她为什么拒绝他们的邀请。
介词宾语：That depends on where we shall go.那取决于我们去哪儿。
2）Wh-从句作主语也常用先行词it做形式主语，而将wh-从句置于句末，例如：It is not yet decided who will do that job.还没决定谁做这项工作。
It remains unknown when they are going to get married.他们何时结婚依然不明。
八if, whether引导的名词从句1）yes-no型疑问从句从属连词if, whether引导的名词从句是由一般疑问句或选择疑问转化而来的，因此也分别被称为yes-no型疑问句从句和选择型疑问从句，其功能和wh-从句的功能相同，例如：主语：Whether the plan is feasible remains to be proved. 这一计划是否可行还有待证实。
宾语：Let us know whether / if you can finish the article before Friday.请让我们知道你是否能在星期五以前把文章写完。
表语：The point is whether we should lend him the money.问题在于我们是否应该借钱给他。
同位语：They are investigating the question whether the man is trustworthy.他们调查他是否值得信赖。
形容词宾语：She's doubtful whether we shall be able to come.她怀疑我们是否能够前来。
介词宾语：I worry about whether he can pass through the crisis of his illness.我担心他是否能度过疾病的危险期。
2）选择性疑问从句选择性疑问从句由关联词if/whether…or或whether…or not构成，例如：Please tell me whether / if they are Swedish or Danish. 请告诉我他们是瑞典人还是丹麦人。
I don't care whether you like the plan or not.我不在乎你是否喜欢该计划。
▲if和whether的区别：1、在动词不定式之前只能用whether 。
I can’t decide whether to stay. 我不能决定是否留下。
2、在whether ……or not 的固定搭配中。
I want to know whether it’s good news or not . 我想知道是否是好消息。
3 、在介词后，只能用whether。
His father is worried about whether he lose his work . 他的父亲担心是否会失去工作。
4、宾语从句放在句首表示强调时，只能用whether 。
Whether this is true or not, I really don’t know. 这是否真的，我真的不知道。
3、（例11 Whether they can finish the work on time is still a problem . 他们是否能准时完成这项工作还是个问题。
－－此例为主语从句，有误，感谢指出）5、用if会引起歧义时，只用whether。
如：Could you tell me if you know the answer ? 这句话有两种意思：“你能告诉我是否知道答案吗？”或“如果你知道答案，请告诉我，好吗？”。
如用whether可避免歧义.九, whoever 和whatever 引导的名词性从句whoever引导主，宾从句=anyone who---whatever引导主，宾从句=anything that---Whatever is left over may be put into the refrigerator, where it will keep for two or three weeks.(2011安徽卷28)=Anything that is left over may be put into the refrigerator, where it will keep for two or three weeks.Whoever walks around in such a heavy rain will catch a cold.任何在这样的大雨中行走得人都会患感冒。
=Anyone who walks around in such a heavy rain will catch a cold..（主语从句）I will give the ticket to whoever is interested in music.我将把票给对音乐感兴趣的人。
= I will give the ticket to anyone who is interested in music.(宾语从句)注意区别：Who will go makes no difference.（主语从句）I don`t know who will do it.(宾语从句)以上两句中的who不能换成anyone whowhoever引导状语从句时等于no matter whowhatever引导状语从句时等于no matter whatNo matter what you may say, he won`t listen.=Whatever you say, he won`t listen.无论你说什么他都不会听。