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，名词性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。
分类
引导名词性从句的连接词可分为三类：
连词（5个）：that （宾语从句或表语从句中"that"有时可以省略）
whether,if （均表示“是否”表明从句内容的不确定性）
as if ,as though （均表示“好像”，“似乎”）
以上在从句中均不充当任何成分
连接代词（9个）：w hat, w hatever, w ho, w hoever, w hom, w homever, w hose, w hich, w hichever
连接副词（7个）：w hen, w here, how, why, w henever, w herever, how ever
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 w as chosen made us very happy.
We heard the new s that our team had w on.
3. 在从句中做成分的连词.
比较
whether与if 均为"是否"的意思。但在下列情况下，只可用w hether：
1. w hether引导主语从句并在句首。
eg:w hether he can come to the party on time depends on the traffic.
2. 引导表语从句。
eg:The question is w hether w e can get in touch w ith her.
3. w hether从句作介词宾语。
eg:I am thinking about w hether I should quit my present job.
4.if与w hether都可以与or not 连用，但后面紧跟or not 时只能用w hether。
we didn't know w hether or not she w as ready.（此时只能用w hether）
I w onder w hether/if the new s is true or not.（此时则二者都可以用）
5. 引导主语从句。
Whether he w ill 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 w ho w ill go.
It is still unknow n w hich team w ill w in the match.
6.引导同位语从句
编辑本段分类
主语从句
作句子主语的从句叫主语从句。主语从句通常由下列词引导：
1）从属连词that，w hether,if等；
2）连接代词w hat，w ho，w hich，w hatever，w hoever，w hom 等；
3) 连接副词how，w hen，w here，w hy 等。
that在句中无词义，只起连接作用；连接代词和连接副词在句中既保留自己的疑问含义、又起连接作用，在从句中充当从句的成分。注：w hom、w ho指人，w hat指物，w hatever，w hoever表示泛指意义。例如：What he w ants to tell us is not clear. 他要跟我们说什么，还不清楚。
Who w ill w in the match is still unknow n. 谁能赢得这场比赛还不得而知。
It is know n to us how he became a w riter. 我们都知道他是如何成为一名作家的。
Where the English evening w ill be held has not yet been announced. 英语晚会将在哪里举行，还没有宣布。
有时为避免句子头重脚轻，常用形式主语it代替主语从句作形式主语放于句首，而把主语从句置于句末。主语从句后的谓语动词一般用单数形式。常用句型如下：
（1）It be+ 名词+ that从句
（2）It be + 形容词+ that从句
（3）It be + 动词的过去分词+ 主语从句
（4）It + 不及物动词+ that 从句
另注意在主语从句中用来表示惊奇、不相信、惋惜、理应如此等语气时，谓语动词要用虚拟语气“(should) +do”，常用的句型有：
It is necessary (important, natural, strange, etc.) that …
It is suggested (requested, proposed, desired, etc.) that…
众所周知的几种表达方式
（1）It is know n to us that.
（2）As is know n to us.
（3）w hat is know n to us is that.
it引导的强调据结构：It is/w as+被强调部分+that/w ho+句子其它部分。
eg:My father did the experiment in the lab yesterday everning.
强调主语：It w as my father w ho did the experiment in the lab yesterday everning.
强调宾语：It w as the experiment my father did in the lab yesterday everning.
强调时间：It w as yesterday everning that my father did the experiment in the lab.(注意不用w hen)
强调地点：It w as in the lab that my father did the experiment yesterday everning.
宾语从句
名词从句用作宾语的从句叫宾语从句。引导宾语从句的关联词与引导主语从句表语从句的关联词大致一样，在句中可以作谓语动词或介词及非谓语动词的宾语。
1. 由连接词that引导的宾语从句。
由连接词that引导宾语从句时，that在句中不担任任何成分，在口语或非正式的文体中常被省去，但如果从句是并列句时,第二个分句前的that不可省。
He has told me that he w ill go to Shanghai tomorrow. 他已经告诉我他明天要去上海。
We must never think (that) w e are good in everything w hile others are good in nothing. 我们决不能认为自己什么都好，别人什么都不好。
注意：在demand、order、suggest、decide、insist, desire, request, command, doubt等表示要求、命令、建议、决定等意义的动词后，宾语从句常用“（should）+ 动词原形”。
I insist that she (should) do her w ork alone. 我坚持要她自己工作。
The commander ordered that troops (should) set off at once. 司令员命令部队马上出发。
2. 用w ho，w hom, w hich, w hose, w hat, w hen, w here, w hy, how, w hoever, w hatever, w hichever等关联词引导的宾语从句相当于特殊疑问句，应注意句子语序要用陈述语序。
I w ant to know w hat he has told you. 我想知道他告诉了你什么。
She alw ays thinks of how she can w ork w ell. 她总是在想怎样能把工作做好。
She w ill give w hoever needs help a w arm support. 凡需要帮助的人，她都会给予热情的支持。
3.可运用it做形式宾语。
①.动词make, find ,think,feel,cons ider,believe等后面有宾语补足语的时候，则需要用it做形式宾语，而将that宾语从句后置，结构：S.+vt+it+adj./n.+oc(宾语补足语)。
I think it necessary that w e take plenty of hot w ater every day.我认为每天多喝开水是有必要的。
I feel it a pity that I haven't been to the get-together.我没去聚餐，感觉非常遗憾。
②.有些动词带宾语从句时需要在宾语与从句前加it，这类动词主要是：hate,take,ow e,have,see to
I hate it w hen they w ith their mouths full of food.我讨厌他们满嘴食物时说话。
We take it that you w ill agree w ith us.我们认为你会同意我们的。
He w ill have it that our plan is really pratical.他认为我们的计划确实可行。
4.用whether或if引导的宾语从句，其主语和谓语的顺序也不能颠倒，仍保持陈述句语序。此外，w hether 与if 在作“是否”的意思讲时在下列情况下一般只能用w hether，不用if：
①w hether引导主语从句在句首时；
Whether there is life on the moon is an interesting question. 月球上有没有生命是个有趣的问题。
Whether he can come to the party on time depends on the traffic.他能否准时参加派对得看交通情况。②宾语从句放在句首表示强调时，只能用w hether；
Whether this is true or not, I r eally don't know.这是会否真实，我也不知道。
③引导表语从句，只能用w hether；
The questin is w hether w e can get in touch w ith her.问题是我们是否能联系上她。
④引导介词宾语时,只能用w hether；
His father is w orried about w hether he lose his w ork.他的父亲担心他是否会失去工作。
I'm thinking about w hether I should quit my present job.我正在考虑我是否应该辞去现在的工作。
E v erything depends on w hether w e have enough money.一切要看我们是否有足够的钱。
⑤if与w hether都可以与or not连用，但后面仅跟着or not时只能用w hether；
We didn't know w hether or not she w as ready.（此时只能用w hether）
I w onder w hether/if the new s is true or not.（此时则二者都可以用）
⑥后接动词不定式时，用w hether；
Can you tell me w hether to go or to stay? 你能否告诉我是去还是留？
I can't decide w hether to stay.我不能决定是否留下。
⑦用if会引起歧义时，只用w hether；
Could you tell me if you know the answ er ?
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w hether 可避免歧义.
⑧w hether可引导同位语从句，if不能引导同位语从句。
The question w hether w e should call in a specialist w as answ ered by the family doctor.我们是否请专家由家庭医生来定。
5. 注意宾语从句中的时态呼应，当主句动词是现在时，从句根据自身的句子情况，而使用不同时态。
I know (that) he studies E nglish every day. （从句用一般现在时）
I know (that) he studied English last ter m. （从句用一般过去时）
I know (that) he w ill study E nglish next year. （从句用一般将来时）
I know (that) he has studied English since 1998. （从句用现在完成时）
当主句动词是过去时态（could, w ould除外），从句则要用相应的过去时态，如一般过去时，过去进行时，过去将来时等；当从句表示的是客观真理，科学原理，自然现象，则从句仍用现在时态。
The teacher told us that Tom had left us for Amer ica．
All of us know that the moon moves round the earth.
6. think, believe, imagine, suppose等等动词引起的否定性宾语从句中，要把上述主句中的动词变为否定式。即将从句中的否定形式移到主句中。
We don’t think you are here. 我们认为你不在这。
I don’t believe he w ill do so. 我相信他不会这样做。
表语从句
在复合句中，位于系动词之后作表语的从句叫表语从句。引导表语从句的关联词与引导主语从句的关联词大致一样，表语从句位于连系动词后，有时用as if引导。
其基本结构为：主语+ 联系动词+ that从句
1.that 引导表语从句，无词义，只起连接作用，不可省。
2.联系动词可为be,look,seem,sound,appear等。
3.主语可为名词fact,truth,cause,question,explanation,trouble,assumption,belief等，代词this,that,these,it 等。
The fact is that w e have lost the game. 事实是我们已经输了这场比赛。
That’s just w ha t I w ant. 这正是我想要的。
This is w here our problem lies. 这就是我们的问题所在。
That is w hy he didn’t come to the meeting. 那就是他为什么不到会的原因。
It looks as if it is going to rain. 看上去天要下雨了。
Raw material is w hat w e are badly in need of.原材料是我们所急需的。
China is not w hat it used to be.中国已不是过去的中国了。
【注意】
1.当主语是reason时，表语从句要用that引导而不是because。
The reason w hy he w as late w as that he missed the train by one minute this morning.
2.w hether 可引导表语从句，但与之同义的if却通常不用于引导表语从句。
3.That is w hy …译为“这就是……的原因/因此”。
其中w hy引导的名词性从句在句中做表语，该句型通常用于针对前面已经说过的原因进行总结。
That is w hy you see this w oman before you know.这就是现在这位女士出现在你面前的原因。
That is w hy I came.这就是我来的原因。
区别：①That is w hy ……与That is the reason w hy …同义，只不过从语法结构上讲，前者中的w hy引导表语从句，后者中的w hy引导定语从句。
That is (the reason ) w hy I cannot agree.这就是我不能同意的理由。
②That is because …句型中从属连词because引导的名词性从句在此做表语，意为“这就是为什么……/因为……”。
That is because …指原因或理由。
That is w hy … 指由于各种原因所造成的后果。
He didn not see the film last night. That is because he had to help his little sister w ith her homew ork.昨晚他没有去看电影，那是因为他得帮主他的妹妹做作业。（第一句话说明结果，第二句话说明原因）He had seen the film before. That is w hy he did not see it last night.他以前曾看过那部电影，因此他昨晚没有去看。（第一句话说明原因，第二句话说明结果）
同位语从句
同位语从句说明其前面的名词的具体内容。同位语从句通常由that引导，可用于同位语从句的名词有advice、demand、doubt、fact、hope、idea、information、message、news、order、problem、pr omise、question、request、suggestion、truth、w ish、w ord等。例如：
The new s that w e w on the game is exciting.我们赢得这场比赛的消息令人激动。
I have no idea w hen he w ill come back home. 我不知道他什么时候回来。
The thought came to him that Mary had probably fallen ill. 他想到可能玛丽生病了。
同位语从句和定语从句的区别：
that作为关系代词，可以引导定语从句，充当句子成分，在从句中作宾语时可以省略；that引导同位语从句时，起连词的作用，没有实际意义，不充当句子成分，一般不能省略。
试比较下面两个例句:
I had no idea that you w ere here．（that引导同位语从句，不能省略）
Have you got the idea（that）this book gives you of life in ancient Greece？（that引导定语从句，作宾语，可以省略）
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 she is still alive is her luc k.她还活着全靠运气。
宾语：John said that he w as 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 w ith 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 w hole 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 obv ious that…很明显……
b. It + be + -ed 分词+ that-从句
It is believed that…人们相信……
It is know n 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 know ledge that………是常识
It is a surpr ise 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……
名词性wh-从句
1）由w h-词引导的名词从句叫做名词性w h-从句。Wh-词包括w ho, w hom,. w hose, w hoever, w hat, w hatever, which, w hichever等连接代词和w here, w hen, how, w hy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 w ill sell depends on its author.书销售如何取决于作者本人。
直接宾语：In one's ow n home one can do w hat one likes.在自己家里可以随心所欲。
间接宾语：The c lub w ill give w hoever w ins a prize.
俱乐部将给得胜者设奖。
表语：My question is w ho w ill 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 w ill name him w hatever she w ants to. 她高兴给他起什么名字就取什么名字。
同位语：I have no idea w hen he w ill return.
我不知道他什么时候回来。
形容词宾语：I'm not sure w hy 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 w here w e 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w h-从句置于句末，例如：
It is not yet decided w ho w ill do that job.
还没决定谁做这项工作。
It r emains unknow n w hen they are going to get married.他们何时结婚依然不明。
if, whether引导的名词从句
1）yes-no型疑问从句
从属连词if, w hether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w h-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 w hether / if you can finish the artic le 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 w hether w e 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 w hether the man is tr ustw orthy.他们调查他是否值得信赖。
形容词宾语：She's doubtful w hether w e shall be able to come.她怀疑我们是否能够前来。
介词宾语：I w orry about w hether he can pass through the cris is 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/w hether…or或w hether…or not构成，例如：
Please tell me w hether / if they are Sw edish or Danish. 请告诉我他们是瑞典人还是丹麦人。
I don't care w hether you like the plan or not.我不在乎你是否喜欢该计划。
if和w hether的区别：
1、在动词不定式之前只能用w hether 。如：
例8 I can’t decide w hether to stay. 我不能决定是否留下。
2、在w hether …… or not 的固定搭配中。如：
例9 I w ant to know w hether it’s good new s or not . 我想知道是否是好消息。
3 、在介词后，只能用w hether。如：
例10 His father is w orried about w hether he lose his w ork . 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w hether 。如：
Whether this is true or not, I r eally don’t know. 这是否真的，我真的不知道。
（例11 Whether they can finish the w ork 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w hether。如：
例12 Could you tell me if you know the answ er ?
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w hether 可避免歧义。
否定转移
1) 将think, believe, suppose, expect, fancy, imagine等动词后面宾语从句的否定词转移到主句中，即主句的谓语动词用否定式，而从句的谓语动词用肯定式。
I don't think I know you.我想我并不认识你。
I don' t believe he w ill come.我相信他不回来。
注意：若谓语动词为hope,宾语从句中的否定词不能转移。
I hope you w eren't ill. 我想你没有生病吧。
2) 将seem, appear 等后的从句的否定转移到前面。
It doesn't seem that they know where to go.
看来他们不知道往哪去。
It doesn't appear that w e'll have a sunny day tomorrow.
看来我们明天不会碰上好天气。
3) 有时将动名词，介词短语或整个从句的否定转变为对谓语动词的否定。
I don't remember having ever seen such a man.
我记得从未见过这样一个人。(not否定动名词短语having…)
It's not a place w here anyone w ould expect to see strange characters on the street.
在这里，人们不会想到在街上会碰上陌生的人。
(anyone 作主语，从句中的谓语动词不能用否定形式。)
4) 有时状语或状语从句中否定可以转移到谓语动词前。
The ant is not gather ing this for itself alone.(否定状语)蚂蚁不只是为自己采食。
He w as not ready to believe something just because Aristotle said so. (否定because状语) 他并不因亚里斯多德说过如何如何，就轻信此事。
She had not been marr ied many w eeks w hen that man's younger brother saw her and w as struck by her beauty.(否定状语many w eeks)她结婚还不到几个星期，这个人的弟弟就看见她了，并对她的美貌着了迷。
专项训练名词性从句专项及解析含答案解析 一、初中英语名词性从句 1．______ is our belief that improvements in health care will lead to a stronger, more prosperous economy. A. Which B. What C. It D. As 【答案】 C 【解析】【分析】句意：医疗保健的进步将促进一个更强大、更繁荣的经济，这是我们的信念。that引导的是主语从句，故空格处应该用it作形式主语，代替真正的that引导的主语从句。故答案选C。 【点评】考查it的用法，以及主语从句的应用。 2．_____ is known to us all is that China has launched Shenzhou VII spaceship, ____ made the country's first spacewalk successful. A. That; what B. What; which C. It; which D. As; that 【答案】 B 【解析】【分析】句意：众所周知，中国已经发射了神州7号宇宙飞船，这是中国首次成功的太空行走。第一空处为主语从句，从句缺少主语，需用what引导；第二空所在句子是个定语从句，先行词为整个主句的内容，从句中缺少主语，需用which引导。故选B。【点评】考查名词性从句和定语从句，本题涉及主语从句和非限制性定语从句的应用。 3．He took a trip to Beijing last week and ________ he saw at the Forbidden City impressed him deeply. A. that B. how C. what D. which 【答案】 C 【解析】【分析】句意：上周他到北京旅行了，他在故宫所看到的给他留下了深刻的印象。分析句子结构可知，连词and后为一个名词性从句，因此应该使用what引导，且what在从句中作主语，故选C。 【点评】考查名词性从句，本题涉及what引导的主语从句。 4．________ is the centre of our planetary system was a difficult concept to grasp in the Middle Ages. A. It's the sun and not the earth B. The sun and not the earth C. Being the sun and not the earth D. That the sun and not the earth 【答案】 D 【解析】【分析】句意：太阳而不是地球是我们行星系统的中心，这在中世纪是一个很难理解的概念。分析句子可知，整个句子为主系表结构，was为系动词，它之前的都为主语，且主语由句子来充当，句子结构以及句意完整，所以连词代词为that。故选D。
必备英语中考英语名词性从句练习题(含答案) 一、初中英语名词性从句 1．We believe ________ you have been devoted to ________ naturally of great necessity. A. that; being B. all that; be C. that all; are D. what; is 【答案】 D 【解析】【分析】句意：我们相信你所投入的当然是非常必要的。分析句子可知，believe 后接宾语从句，宾语从句中you have been devoted to缺少宾语，表示事物故用what；what you have been devoted to为主语，从句作主语，谓语动词用单数，故选D。 【点评】考查名词性从句和主谓一致，本题涉及what引导的主语从句和一般现在时。 2．Some people believe _______ has happened before or is happening now will repeat itself in the future. A. whatever B. whenever C. wherever D. no matter what 【答案】 A 【解析】【分析】句意：一些人认为之前发生的或现在正在发生的任何事情在将来都会重复发生。Whatever has happened before or is happening now是一个主语从句，whatever既引导起这个主语从句，也在句中做主语。BC项都属于副词的性质，都不能做主语，通常只能做状语；no matter what只能用来引导状语从句，故选A。 【点评】考查名词性从句，本题涉及"特殊疑问词+ever"引导的主语从句。 3．--- made her ashamed of herself? --- the lowest mark in her class. A. What; Because she got B. Was it what; Getting C. What was it that; That she got D. What was it that; Get 【答案】 C 【解析】【分析】句意：——是什么让她对她自己感到羞愧？——是她获得了她班上的最低分让她惭愧。A中的what是句子的主语，但是because引导的从句不作主语，是原因状语从句，故排除；B的第一空是错误形式，故排除；C、D两项的第一个选项是一样的，说明第一个题干是一个强调句型，特殊疑问句下的强调句型，有what引导；第二个空是对what的回答，因为what是上一句的主语，That she got the lowest mark in her class是从句，可以作主语；而D项的get是动词原形，不能作主语，故答案为C。 【点评】考查强调句型的使用和对特殊疑问句的回答，注意问什么回答什么，也就是说疑问词what是句子的主语，回答的内容也需要在句子中能作主语。 4．________ has been proved is that animals and insects have their own languages. A. What B. As C. It D. That 【答案】 A 【解析】【分析】句意：已被证明的是动物和昆虫有自己的语言。根据is判断，此处为主
英语名词性从句专项训练及答案及解析 一、初中英语名词性从句 1．______ has caused great confusion is ______ he made it without anyone else's help. A. What; that. B. What; how. C. It; how. D. It; that. 【答案】 B 【解析】【分析】句意：让人极大困惑的是他如何在没有别人帮助的情况下做到这一点的。表示“让人困惑的事情”用what引导主语从句，表示“如何做到的”用how表方式，引导表语从句。故选B. 【点评】考查名词性从句，本题涉及what引导的主语从句和how引导的表语从句。 2．While some behaviors may seem strange to you, remember you consider normal probably seems just as unusual to others. A. it; that B. what; that C. that; what D. which; that 【答案】 C 【解析】【分析】句意：虽然有些行为对你来说可能很奇怪，但请记住，你认为正常的行为对别人来说可能也不寻常。第一空为宾语从句，从句结构完整用that起连接作用，第二空为主语从句，从句中consider缺少宾语，应该用what，故选C。 【点评】考查名词性从句，本题涉及that引导的宾语从句和what引导的主语从句。 3． is clear to the members of the committee is that the President will not give in to their demands. A. Who B. It C. As D. What 【答案】 D 【解析】【分析】句意：委员会成员清楚的是，总统不会向他们的要求让步。that the President will not give in to their demands.这个句子作表语； is clear to the members of the committee这是主语从句，这里缺少主语从句的连接词，并且连接词在句中作主语，it是代词，不是了；连接词，故排除B；as作主语时，是在定语从句中，故排除C；who指人，根据表语指的事情，不是人，故排除A；what在主语从句中可以作主语或宾语，指事，符合句意，故选D。 【点评】考查名词性从句，本题涉及what引导的主语从句。 4．________ is known to us all that the old scientist, for ________ life was hard in the past, still works hard in his eighties. A. As; whose B. It; whose C. As; whom D. It; whom 【答案】 D 【解析】【分析】句意：我们都知道，那位老科学家，过去生活很艰苦，到了八十多岁还在努力工作。第一空it is known to us all that…是个固定句型，意为“众所周知…”；第二空为介词+关系代词引导的定语从句，先行词the old scientist指人，作介词for的宾语，只能用whom，故选D。
（英语）英语名词性从句练习题及答案及解析 一、初中英语名词性从句 1．Exactly _________ the potato was introduced into Europe is uncertain, but it was probably around 1565. A. whether B. when C. why D. how 【答案】 B 【解析】【分析】句意：土豆被引进欧洲具体的事件不被确定，但是可能是在1565年左右。根据时间状语round 1565得知这里是指时间不确定。故选B。 【点评】考查名词性从句，本题涉及when引导的主语从句。 2．___ surprised me most was ____the girl passed the driver test. A. That; that B. What; how C. What; that D. That; why 【答案】 C 【解析】【分析】句意：最让我吃惊的是那个女孩通过了驾驶考试。___ surprised me most是一个主语从句，从句中缺少主语，故填what；____the girl passed the driver test 是一个表语从句，句中不缺少成分，故填that。因此选C。 【点评】考查名词性从句，本题涉及what引导的主语从句和that引导的表语从句。 3．It________that the road will be closed tomorrow for repairs. A. was announced B. has been announced C. had been announced D. would be announced 【答案】 B 【解析】【分析】本题考查动词的时态和语态。题干句子中that到句子结束是宾语从句，且从句动词用“will＋动词原形”表示将来，由此推断出空白处谓语动词应用现在的某种时态，在所给四个选项中，只有B项正确。 【点评】考查现在完成时的被动语态，其结构是have/has +been +done。需要注意宾语从句的时态。主句用现在时，从句所需的任何时态。 4．_______ are playing an important part is well known to us all. A. That who B. Those who C. Who that D. Who 【答案】 D 【解析】【分析】考查主语从句。句意：谁起着重要作用，这是众所周知的。主语从句缺少引导词，从句缺少主语，故选D。 5．Has it been announced ______?
一、用that,if 或 whether 填空 1.I hope__________Shanghai Football Team can win the match. 2.I want to know___________the foreign guests visited them the day before yesterday. 3.I don’t know __________Jack can jump father than Peter. 4.Lucy told me __________the famous singer would come to China the next week. 5. I wonder____________they will go on with their research work or not. 6.Do you think ___________the tortoise can live up to 150 years old 7.Could you tell me________it will rain tomorrow. 8.I am sure___________he has known the answers to the questions. 9.I want to know___________she will take part in Mary’s birthday party. 10.Sandy has decided_____________she will go to Canada with her boyfriend. 一、将下列句子合并成含有宾语从句的复合句 1. Does it often rain here in spring Could you tell me _________________________________________________ teacher said, “John, you must bring your book to the class.” _________________________________________________ 3. “The earth moves around the sun,” the teacher told us. ________________________________________________ asked , “Do these foreign visitors come from Germany or America” ________________________________________________ 从下列A、B、C、D中选择一个正确选项填空。 （）1. I don't know _______ he will come tomorrow. ______ he comes, I'll tell you． A. if; Whether B. whether; Whether C. if; That D. if; If （）2. I don't know _________ the day after tomorrow. A. when does he come B. how will he come C. if he comes D. whether he'll come （）3. Could you tell me _________ the nearest hospital is B. how C. whether D. where （）4. Could you tell me _________ the radio without any help A. how did he mend B. what did he mend C. how he mended D. what he mended （）5. I want to know _________. A. whom is she looking after B. whom she is looking C. whom is she looking D. whom she is looking after （）6. Do you know where _________ now A. he lives B. does he live C. he lived D. did he live （）7. Do you know what time _________ A. the train leave B. does the train leave C. will the train leave D. the train leaves （）8. I don't know _________. Can you tell me, please A. how the two players are old B. how old are the two players
十大词性、句子成分分析、五大基本句型及句子类型讲解与练习 一、新课导入 个体名词 集体名词 普通名词 物质名词 1.名词 抽象名词 专有名词 功能：表示人或事物的名称 人称代词： 主格 宾格 （注意it 的用法） 物主代词： 形容词性物主代词 名词性物主代词 指示代词：this, that, these, those 单数：myself`, yourself, himself, herself, itself, oneself 反身代词： 复数：ourselves, yourselves, themselves 2.代词 疑问代词：who, whom, whose, what, which. 简单不定代词：One/ones, Either/neither, both/all, each/ every another, other, the other, others, the others 复合不定代词： somebody, anybody, nobody 不定代词 someone, anyone, no one something, anything, nothing everybody, everyone, everything 功能：用来代替名词、形容词或数词等 3.数词： 基数词 序数词 功能：表数量或顺序 4.冠词： 定冠词 不定冠词 零冠词 //功能：用在名词前，帮助说明名词所指的人或事物 表地点：at/ in/ on/ to, above/ over/ on, below/ under/ underneath …. 表时间： in/ on/ at, in/ after, from/since from, after/ behind, 5.介词： 表运动： across/ through/ over/ pass … 表方位：…. 其他 功能：用在名词、代词等前面，说明句子中词与词之间的关系 6． 形容词： 平级、比较级、最高级 可数名词 不可数名词
名词性从句专项练习100题 1. His success was because of ________ he had been working hard. A. that B. the fact which C. the fact that D. the fact 2. “Is Mary from New York City” “I don't know _______.” A. from what city does she come from B. from what city she come C. what city does she come from D. what city she comes from 3. ________ makes mistakes must correct them. A. What B. That C. Whoever D. Whatever 4. The reason why I didn't go to Shanghai was ________ a new job. A. because I got B. because of getting C. I got D. that I got 5. It worried her a bit ____ her hair was turning grey. A. while B. that C. if D. for 6. Henry killed the dog. I'll ask him why ________. A. did he do that B. he did that C. he did D. he has done so 7. Have you seen Henry lately My boss wants to know ________. A. how he is getting along B. how is he getting along C. what he is getting along D. what is he getting along 8. It is generally considered unwise to give a child ____ he or she wants. A. however B. whatever C. whichever D. whenever 9. He asked me ________ with me. A. what is the trouble B. what wrong was C. what was the matter D. what trouble it is 10. I am sure ________ he said is true. A. that B. about that C. of that D. that what 11. When and why he came here ________ yet. A. is not known B. are not known C. has not known D. have not bee 12. I wonder how much ________. A. does the watch cost B. did the watch cost C. the watch costed D. the watch costs 13. Mary is ________ someone might recognize her. A. afraid of B. afraid about C. afraid that D. afraid for 14.________ is no reason for dismissing her. A. Because she was a few minutes late B. Owing to a few minutes late C. The fact that she was a few minutes late D. Being a few minutes late 15. They came to the conclusion ________ by a computer. A. that not all things can be done B. because of not all things be done C. being not all things can be done D. because not all things can be done 16. Why the explosion occurred was ________ the laboratory attendant had been careless. A. for B. because C. since D. that 17. I don't doubt ________ he'll come.
【英语】名词性从句练习题(含答案) 一、名词性从句 1．He took a trip to Beijing last week and ________ he saw at the Forbidden City impressed him deeply. A. that B. how C. what D. which 【答案】 C 【解析】【分析】句意：上周他到北京旅行了，他在故宫所看到的给他留下了深刻的印象。分析句子结构可知，连词and后为一个名词性从句，因此应该使用what引导，且what在从句中作主语，故选C。 【点评】考查名词性从句，本题涉及what引导的主语从句。 2．It has been pointed out ________ plays a vital role in driving away one's anxiety is one's sweet childhood memories. A. what that B. which C. that D. that what 【答案】 D 【解析】【分析】句意：有人指出，驱除焦虑所起着至关重要的作用是童年美好的回忆。本句时一个主语从句，it作形式主语，真正的主语为that what plays a vital role in driving away one's anxiety is one's sweet childhood memories.，主语从句中又有一个主语从句，且此主语从句中缺少主语，所以用what引导。故选D。 【点评】考查名词性从句，本题涉及what引导的主语从句。 3． is clear to the members of the committee is that the President will not give in to their demands. A. Who B. It C. As D. What 【答案】 D 【解析】【分析】句意：委员会成员清楚的是，总统不会向他们的要求让步。that the President will not give in to their demands.这个句子作表语； is clear to the members of the committee这是主语从句，这里缺少主语从句的连接词，并且连接词在句中作主语，it是代词，不是了；连接词，故排除B；as作主语时，是在定语从句中，故排除C；who指人，根据表语指的事情，不是人，故排除A；what在主语从句中可以作主语或宾语，指事，符合句意，故选D。 【点评】考查名词性从句，本题涉及what引导的主语从句。 4．________ is known to us all that the old scientist, for ________ life was hard in the past, still works hard in his eighties. A. As; whose B. It; whose C. As; whom D. It; whom 【答案】 D 【解析】【分析】句意：我们都知道，那位老科学家，过去生活很艰苦，到了八十多岁还在努力工作。第一空it is known to us all that…是个固定句型，意为“众所周知…”；第二空为
宾语从句练习题 宾语从句小口诀 宾语从句三注意，时态语序引导词；主句一般现在时，从句不需受限制； 主句一般过去时，从句须用相应时；陈述句转化that引，一般疑问句用if/whether, 特殊问句疑问词，引导词后陈述式。 一、巩固练习 you decided ________for Australia A. when will you leave B. when do you leave C. you will leave when D. when you will leave you tell me _________ A. where does Tom live B. where Tom lived C. Tom lives where D. where Tom lives old man asked me ________ . A. where was the cinema B. where is the cinema C. where the cinema was D. where was the way to the cinema think _______ you will like him. A. that B. if C. why D. how didn’t know _______ he will come or not. A. that B. whether C. weather D. how wonder _________ . A. how much cost these shoes B. how much do these shoes cost C. how much these shoes cost D. how much are these shoes cost asked me _________ . A. who he was B. who was he C. who is he D. who he is him ___. A. whose cup this is B. whose cup is this C. this is whose cup D. whose is this cup don’t know _________ . A. what time the movie starts B. what time starts the movie C. the time to start the movie D. the movie what time starts doctor asked me how long ________ . A. was I ill B. have I been ill C. I have been ill D. I had been ill weather forecast doesn’t say _________. A. if it rains tomorrow B. if does it rain tomorrow C. if it will rain tomorrow D. if will it rain tomorrow you know _________ A. whose pen is this B. whose pen this is C. whom does the pen belong to D. whom the pen belong to you tell me where _________ A. the tape was B. was the tape C. the tape is D. is the tape want to know _________ A. where is the hospital B. how old are you C. when the train will leave D. why is the boy crying wanted to know _________. A. what had Father Christmas put in his stocking
名词性从句专练（一） 1. Nowadays consumers become more and more practical and buy only _______ they need. A. where B. which C. when D. what 2. She’d like to offer money to ________ needs it to continue his or her study. A. who B. whom C. whoever D. whomever 3. ---If you are admitted to a key university, _________ as a prize? --- I’m looking for a cell phone. A. What you expect your father will offer you B. Do you expect what your father will offer you C. What do you expect will your father offer you D. What do you expect your father will offer you 4. Yesterday he sold out all his stamps at ____ he thought was a reasonable price. A. that B. which C. what D. as 5. Generally speaking, ____ we have seen seems more believable than ____ we have been told. A. what; that B. what; what C. that; what D. that; that 6. After three days’ waiting, there was a little doubt in the mother’s mind _______ the police could find her lost child. A. how B. that C. where D. whether 7. “Sustainable development” is a question _______ we can continue developing the world without damaging the environment. A. why B. when C.
宾语从句 一、宾语从句的概念： 宾语从句在复合句中起宾语的作用，在句中可以作谓语动词、介词、某些形容词及过去分词的宾语。 E.g: I don’t know what he said. That depends on where we go. I am not sure where he lives. I am surprised that he passed the exam. 二、句子结构： 主句+连词（引导词）+ 宾语从句 三、引导词 1. 当宾语从句由陈述句变化而来时,用that来引导从句,that常无具体意义,一般可省略。例如: Lin Tao thought(that)the TV play was very boring. 注意：that在引导宾语从句时也并不是任何情况下都可以省略。在以下情况下，that不能省略。 （1）and或but连接两个或多个宾语从句时，可以省略第一个连词that，放在and或者but 的后面的that不能省略。 Everybody could see what happened and that Tom was frightened. 大家都会看出所发生的事情并知道Tom非常害怕。 （2）that引导的宾语从句作介词宾语时，that不能省略。 I know nothing about him except that he is from the south. 对他我一无所知，只知道他是南方人。 （3）主句谓语动词与that从句之间有插入语，that不可省略。 We decided, in view of his special circumstances, that we would admit him for a probationary period. 鉴于他的特殊情况，我们决定应允他一段试用期。 （4）当宾语从句后带宾补时，要用“主语+谓语+it +宾补+that-clause, that不可省略 I think it certain that she will do well in her exam. 2. 当宾语从句是由一般疑问句变化而来时,要用if或whether来引导从句。例如: David asked his mother if/ whether she liked the dinner last night. I doubt whether he will succeed. 我怀疑他是否会成功。 I don’t know if you can help me. 我不知道你能否帮助我。 注意:whether与if都可以引导宾语从句，常可互换。但下面情况不能互换。 ①宾语从句是否定句时，只用if，不用whether. e.g. I wonder if it doesn’t rain. ②用if 会引起误解，就要用whether。 e.g. Please let me know whether you want to go.（此句如果把whether改成if，容易当成条件句理解） ③宾语从句中有or not时,只用whether不用if. e.g. I don’t know whether the report is true or not. ④介词后的宾语从句要用whether引导。whether 也可与不定式连用。 e.g. It depends on whether we have enough time.
1.基本的句子分类和句子核心成分 简单句，复合句（用连词直接连接的两个完整的简单句，“串联句”），复杂句（主从复合句，“并联句”） 不管是什么句子，既然叫做“句子”，那么意味着成分必须完整没有缺失。 既然是句子，不管是主句还是从句，都必须有谓语动词。而且任何一个句子中，有且只有一个谓语动词。 “非谓语动词”---v-ing现在分词，v-ed过去分词，to-do 改错：There are many people claim that education is quite crucial for the young generations. 修改一：who claim that… 修改二：claiming that… 修改三：去掉there are 2.5大基本句型:简单句的分类 主语+谓语（常常在后面接一个副词修饰谓语动词） Time flies.//I ran.//You jump; I jump. 主语+谓语+宾语 I want you.//I borrow books.//I love you. 主语+系动词(可接名词和形容词):be动词+感官动词（look/sound/smell/taste/feel）+get/become/turn/grow/appear/fall(asleep)/keep/stay/remain/maintain/exist(th ere exist…=there be…)…+表语（主语补足语） 主语+谓语+双宾语 主语+谓语+复合宾语（主语+谓语+宾语+宾语补足语，宾语补足语是对宾语的进一步说明，一般是名词和形容词） He gave me a book. I call him Jack. I push the door open. 区别双宾语和复合宾语：双宾语的两个宾语之间没有必然的逻辑关系，而复合宾语的两个成分之间是有逻辑关系的，中间可以加be动词来进行甄别。 3.句子基本成分的概念的建立和强化 主语---是一句话的中心，整句话都谈它的情况。最简单的形式是名词。 谓语---是主语的主要情况，可表示动作，也可表示状态。只能是动词。 宾语---表示动作的承受者，也可表示动作的结果。最简单的形式就是名词。 表语---也叫主语补足语，和系动词一道构成谓语。 定语---修饰名词、代词。最简单的定语就是形容词：a beautiful flower//a standardized test 状语---修饰动词、形容词或副词。最简单的状语就是副词：increase rapidly//extremely wealthy//very well
专项训练名词性从句专题复习含答案解析 一、初中英语名词性从句 1．--- made her ashamed of herself? --- the lowest mark in her class. A. What; Because she got B. Was it what; Getting C. What was it that; That she got D. What was it that; Get 【答案】 C 【解析】【分析】句意：——是什么让她对她自己感到羞愧？——是她获得了她班上的最低分让她惭愧。A中的what是句子的主语，但是because引导的从句不作主语，是原因状语从句，故排除；B的第一空是错误形式，故排除；C、D两项的第一个选项是一样的，说明第一个题干是一个强调句型，特殊疑问句下的强调句型，有what引导；第二个空是对what的回答，因为what是上一句的主语，That she got the lowest mark in her class是从句，可以作主语；而D项的get是动词原形，不能作主语，故答案为C。 【点评】考查强调句型的使用和对特殊疑问句的回答，注意问什么回答什么，也就是说疑问词what是句子的主语，回答的内容也需要在句子中能作主语。 2．It was he said disappointed me. A. that; what B. what; that C. that; which D. which; that 【答案】 B 【解析】【分析】句意：正是他说的话让我很失望。这是一个强调句型,"it is/was that..."是固定搭配,"what he said"是被强调部分, 你可以发现去掉"it was that"后, 句子仍然完整。"what he said"做主语,主语从句中"said"缺宾语用what补足，故选B。 【点评】考查主语从句的强调形式。 3．They lost their way in the forest, and ________ made matters worse was that night began to fall. A. it B. which C. that D. what 【答案】 D 【解析】【分析】句意：他们在森林里迷路了，情况更糟糕的是天又黑了。本题中含有一个主语从句what made matters worse，其中的what引导起这个主语从句，同时在主语从句中做主语。故选D。 【点评】考查名词性从句，本题涉及what引导的主语从句的应用。 4．They lost their way in the forest, and ________ made matters worse was that night began to fall. A. that B. it C. what D. which