2021年高三英语考点汇总：名词性从句
高三英语考点汇总
考向1 主语从句
主语从句是在复合句中担任主语的句子。其特点有：
（1）引导词：
从属连词that, whether；
连接代词who, what, which；
whoever, whatever, whichever;
连接副词when, where, how和why。
（2）语序：陈述句语序
（3）在主语从句中只能用whether,不能用if
That he will win the match is certain.
It is certain that he will win the match.
1. 一般来说主语从句都是放在句首，但有时为了使句子保持平衡，避免"头重脚轻",常用it 作形式主语，从
而把主语从句放后面。常以it作形式主语的句型有：
①It is＋形容词＋that...
?It is certain that she will do well in her exam．
毫无疑问她考试成绩会很好。
②It is＋名词词组(no wonder，an honour，a good thing，a pity，no surprise，common knowledge，a surprise，
a fact，etc．)＋that...
?It’s a pity that we can’t go．
很遗憾我们不能去。
③It is＋过去分词(said，reported，thought，expected，decided，announced，arranged，etc．)＋that...
?It has been suggested that much should be done to prevent the river from being polluted．
有人建议应做更多的工作阻止河流遭受污染。
④It appears/seems that...|It happens that...|It occurred to me that...|It turned out that...
?It turned out that nobody remembered the address．
结果发现没人记得这地址。
⑤It doesn’t matter that...|It makes no difference that...
?It doesn’t matter whether she will come or not．
她是否来这无关紧要。
2. 当that引导的主语从句出现在疑问句中时，要以it作形式主语，而把主语从句后置。
?Does it matter much that they will not come tomorrow？
他们明天不来很要紧吗？
3. 当主语从句出现在感叹句中时，要以it作形式主语，而把主语从句后置。
?How strange it is that the children are so quiet！
孩子们这么安静真奇怪！
______ will be in charge of the meeting has not been decided yet.
A．What B．Which C．That D．Who
【答案】D
【解析】考查名词性从句。句意:将由谁来主持会议还没有决定。分析句子结构可知，空处在此引导主语从句，且在从句中作主语，表示"谁"，故用Who。故选D。
【归纳总结】
表语从句放在连系动词之后，充当复合句中的表语。
一、引导表语从句的关联词的种类：
1. 可接表语从句的连系动词有be，look，seem，sound，appear等。
?China is no longer what she used to be. 今日的中国不再是过去的中国了。
?The question remains whether they will be able to help us. 问题还是他们能否帮我们。
?At that time，it seemed as if I couldn't think of the right word.
当时，我似乎怎么也想不出一个恰当的字眼来。
2. 从属连词whether，as，as if / though引导的表语从句。
?He looked just as he had looked ten years before. 他看起来还与十年前一样。
?It sounds as if someone is knocking at the door. 听起来好像有人在敲门。
3. because，why引导的表语从句。
?That's because he didn't understand me. 那是因为他没有理解我。（That's because...强调原因）?That's why he got angry with me. 那正是他对我生气的原因。（That's why...强调结果）
4. 连接代词who，whom，whose，what，which，whoever，whatever，whichever
连接副词where，when，how，why
?The problem is who we can get to replace her. 问题是我们能找到谁去替换她呢。
?The question is how he did it. 问题是他是如何做此事的。
?That was what she did this morning on reaching the attic. 那就是她今晨上了阁楼干的。
5. 从属连词that
?The trouble is that I have lost his address. 麻烦是我把他的地址丢了。
【归纳拓展】
学习表语从句应该注意以下几点。
(1)通常只用that引导表语从句的情况。
①句子的主语为the reason时，表语从句采用that引导，表示原因，此时不用because。
?The reason why she was ill was that she had eaten bad meat．
她生病的原因是她吃了变质的肉。
②句子的主语为the result时，表语从句采用that引导。
?The result is that many of them become fat．
结果是他们中许多人发胖了。
③由why引导的从句作主语时。
?Why we decided to put off the match is that the weather was too terrible．
我们决定推迟比赛的原因是天气太糟糕了。
(2)as if/though引导的表语从句通常置于系动词look，seem，sound，be等后面；表语从句既可以采用虚拟语
气，也可采用直陈语气。
①It sounded as if somebody was knocking at/on the door．听起来好像有人在敲门。
②She treats him as if he were a stranger．她待他如陌生人。
1. One reason for her preference for this school is___________, as she put it, it can provide for her future development.
A．what B．which C．that D．it
【答案】A
【解析】考查表语从句。句意：她偏爱这所学校的原因之一，正如她所说，是它能为她的未来提供
什么。分析句子结构可知，此处为表语从句，从句中的provide缺少宾语，故A项正确。
【难点梳理】
引导宾语从句的连接词主要有：
连接词：that，whether，if等
连接代词：what，who，whose，whatever，whichever，whoever等
连接副词：when，where，why，how等
1. 连接词that，whether，if引导
?I think (that) you should turn to the teacher for help. 我认为你应该向老师寻求帮助。
?I don’t know if/whether he still lives here after so many years. 我不知道这么多年后他是否还住在这儿。
2. 连接代词what，who，whose，whatever，whichever，whoever等引导
?She asked me whose handwriting was the best in the class. 她问我班上谁的书法最好。
?I’ll just say whatever comes into my mind. 我想到什么就说什么。
3. 连接副词when，where，why，how等引导
?Do you know when the ancient Olympic Games began?
你知道古代的奥运会是什么时间开始的吗?
?I’ve been thinking about how we can make the newspaper more interesting.
我一直在考虑如何使我们的报纸更用趣。
4. 宾语从句的语序
在宾语从句中要用陈述句语序。
?He asked me when we could set out the next day. 他问我第二天什么时候可以出发。
?Did you find out where she lost her car? 你查出她在哪里丢的车了吗?
5. 宾语从句的时态
（1）当主句的谓语动词是一般现在时时，其宾语从句的时态可以是任何适当的时态。
?She says (that) she works from Monday to Friday. 她说她周一至周五上班。(从句是一般现在时) ?she says (that) she will leave a message on his desk.
她说她要在他桌子上留个便条。(从句是一般将来时)
?She says (that) she has never been to Mount Emei.
她说她从来没有去过峨眉山。(从句是现在完成时)
（2）当主句的谓语动词是一般过去时时，其宾语从句的时态一般要用适当的过去时态。
?He said there were no classes yesterday afternoon.
他说昨天下午没有课。(从句是一般过去时)
?He said that he was going to take care of the baby.
他说他会去照看这个婴儿。(从句是过去将来时)
?He said that they were having a meeting at that time.
他说他们那时正在开会。(从句是过去进行时)
（3）当宾语从句是表达客观真理和规律的句子时，其时态仍旧用一般现在时。
?The teacher told us that nothing is difficult if we put our hearts into it.
老师告诉我们世上无难事，只怕有心人。
?He said that light travels much faster than sound. 他说光比声音传播得快。
注意：学习宾语从句应该注意以下几点。
(1)引导宾语从句的连词that一般可以省略，但是在及物动词之后跟有两个或两个以上的宾语从句时，只有
第一个that可以省略。
?Glancing at her scornfully，he told her(that) the dress was sold．
他轻蔑地看了她一眼，告诉她说那件衣服卖了。
?The teacher said (that) the text was very important and that we should learn it by heart．
老师说课文非常重要，我们应该背下来。
(2)表示＂心理活动＂的形容词：afraid，anxious，aware，ashamed，annoyed，certain，confident，content，
convinced，determined，disappointed，glad，happy，proud，pleased，sure，surprised，satisfied，thankful，
worried等可以后接宾语从句。
?He was afraid that he would lose．他担心会输。
?I am sure that I put the money in the box．我肯定把钱放在盒子里了。
(3)若主句谓语动词为think，consider，suppose，believe，expect，fancy，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，这种现象称为＂否定转移＂
现象(此时主语往往为第一人称，偶尔为第三人称；否定词never，seldom，hardly，little无此用法)。?I don’t think his decision is wise in reality．实际上，我觉得他的决定并不明智。
?I don’t believe that he is a dishonest man．我认为他是个诚实的人。
(4)在think，believe，imagine，suppose，guess，hope等动词以及I’m afraid之后，可以采用so代替一个肯
定的宾语从句，也可以采用not代替否定的宾语从句。
?—Do you believe the news stories？＂你相信这个新闻故事吗？＂
—I believe so．＂我相信。＂
?—Has Anne got into university？＂安妮上大学了吗？＂
—I am afraid not．＂恐怕是没有。＂
【巧学妙记】
What students do at college seems to matter much more than ___8___ they go.
【答案】where
【解析】考查宾语从句。句意：学生在大学里做什么似乎比去哪里（哪所大学）更重要。这里表达去哪所大学，表示地点，作状语。故用where。
在复合句中用作同位语的从句称为同位语从句。同位语从句是名词性从句的一种。它一般放在fact, news, idea, truth, hope, problem, information, belief, thought, doubt, promise, question等抽象名词的后面，对前面的名词作进一步的解释，说明前面名词的具体含义。
1. 同位语从句的引导词选择原则
?The hope that he may recover is not gone yet.他不是没有恢复的希望。
?The problem whether we should continue to do the experiment has been solved.
我们是否继续做这个实验的问题已经被解决。
2. 同位语从句的几种特殊情况
（1）当主句的谓语较短，而同位语从句较长时，同位语从句常后置。
?The story goes that William Tell killed the king with an arrow.
故事是这样的：威廉姆特尔用一支利箭杀死了国王。
（2）表示“命令、建议、要求”的名词order, demand, suggestion等后接同位语从句时，从句的谓语要用虚拟语气，即“should＋动词原形”，should可省略。
?The suggestion that everyone (should) make efforts to beautify our campus is necessary.
每个人都应尽力来美化校园的建议是有必要的。
3. 同位语从句和定语从句的区别
?The news that Mr. Li will be our new English teacher is true.
李先生将是我们的新英语老师这个消息是真的。(同位语从句，that不可省略)
?The news (that) he told me yesterday is true.
他昨天告诉我的消息是真的。(定语从句，that在从句中作宾语，可省略)
25.Scientists have obtained more evidence ___________ plastic is finding its way into the human body.
A. what
B. that
C. which
D. where
【答案】B
【解析】考查同位语从句。句意：科学家已经获得更多证据，塑料正在进入人们的体内。从句不缺句子成分，且与evidence指代的是同一事件，用that引导同位语从句。故选B。
名词性从句考点归纳：
1．名词性从句必须采用陈述语序。
①I want to know what he has told you．我想知道他告诉了你什么。
②She always thinks of how she can work well．她总是在想怎样能把工作做好。
2．it充当形式主语或宾语：
在名词性从句中，为了使句子保持平衡，常用先行词it来代替主语从句或宾语从句，而把主语从句或宾语从句放到后面，尤其是连词that引导的主语从句常用于此句式中。
①It is known to us how he became a writer．我们都知道他是如何成为一名作家的。
②I find it strange that she doesn’t want to travel．她竟不想旅游，我觉得很奇怪。
3．在名词性从句中that与what的差异：
what在从句中要充当某个成分(主语、宾语或表语)，在任何情况下都不能省略，表示＂(＝the thing or things that...；whatever)……的事物；无论什么；凡是……的事物＂。that本身没有词汇意义，在从句中不充当任何成分，在口语和非正式文件中，宾语从句中的that常常省略。
①What you have done might do harm to others．你所做的事或许对别人有害处。
②I spent what little time I had with my family．我仅有的一点儿时间都和家人在一起度过了。
③No one knows what will happen next．谁也不知道下一步有什么事。
④I think(that) you will like the stamps．我认为你会喜欢这些邮票的。
4．whether和if的差异：
（1）引导主语从句、表语从句或同位语从句，只能采用whether。
?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。
（2）介词宾语只用whether引导。
?He was worrying about whether he had hurt her feeling．
他焦虑地想知道是否伤害了她的感情。
（3）当whether引导的宾语从句位于句首表示强调时，不能被if替换。
?Whether he will come or not，I am not sure．我无法确认他是否会来。
（4）whether经常与or not 直接连用，构成whether or not。
?I don’t know whether or not he’ll come．我不知道他是来还是不来。
（5）后接动词不定式时只能用whether。
?Can you tell me whether to go or to stay？你能否告诉我是去还是留？
（6）动词discuss后面只能接whether引导的宾语从句。
?We discussed whether we should close the shop．我们讨论我们是否关闭这家商店。
5．宾语从句和主句的时态呼应：
（1）当主句谓语动词为现在时态或将来时态时，宾语从句可以选择适当的时态。
?Will you tell me how I can keep fit？能告诉我如何保持健康吗？
（2）当主句谓语动词为过去时态时，为保持时态一致，宾语从句应采用相应的过去时态。
?Jack told me that he had been there twice．杰克告诉我他去过那儿两次了。
（3）当主句谓语为过去时态时，宾语从句表示客观真理、客观存在的事物、格言时，仍然采用一般现在时。
?Long ago，people knew that there are four seasons in a year．
很久以前，人们就知道一年有四个季节。
6．连接代词whoever，whatever，whichever引导名词性从句的含义：
（1）whoever的用法：
①(＝the person or people who...)……的那个人
?Whoever said that？到底谁讲的这话？
②(＝any person who...)……的任何一个人
?Tell whoever you like；it makes no difference to me．
你愿意告诉谁就告诉谁——对我来说都无所谓。
（2）whatever的用法：
①(＝any or every)任何；每一
?Take whatever action is needed．采取任何必要的措施。
②(＝anything or everything)任何事物；一切事物
?You must do whatever is best for you．什么对你最有利你就得做什么。
③(表示做什么或发生什么都没关系，因为结果都一样)无论什么，不管什么
?You have our support，whatever you decide．
不管你做何决定，都会得到我们的支持。
（3）whichever的用法：
①(表示什么特征或品质在作决定时重要)……的那个；……的那些
?Take whichever hat suits you best．挑个最适合你戴的帽子。
②无论哪个；无论哪些
?Whichever of you comes in will receive a prize．
你们当中不论哪个进来将会得到奖励。
7．虚拟语气结构在名词性从句中的应用：
（1）主语从句
?It is necessary that he(should)come to see us．他有必要来看望我们。
（2）宾语从句
?The teacher suggested that we(should)have a rest．老师建议我们休息一会儿。
（3）表语从句
?My suggestion is that we(should)read English newspapers to improve our English．
我的建议是我们应该阅读英文报纸来提高我们的英语水平。
8．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，都用连词that，被强调部分指人时也可用who/whom。
①It’s a pity that he missed the opportunity to tr avel abroad．
他错过了去国外旅游的机会，真是可惜。
②Who was it that won the World Cup in 2014？谁赢得了2014年的世界杯？
1.While they are rare north of 88°,there is evidence ___61___ they range all the way across the Arctic, and as far south as James Bay in Canada.
【答案】that
【解析】考查同位语从句。根据句子结构分析可知，主句为there be句型，且结构完整，空格后为同位语从句，解释说明中心词evidence的内容，故填that。
2.This is _________ my father has taught me—to always face difficulties and hope for the best.
A. how
B. which
C. that
D. what
【答案】D
【解析】考查名词性从句。句意：这是我父亲教我的——总是要面对困难，抱最大的希望。“_________ my father has taught me”是表语从句，该空在从句中做teach的宾语，且表示“父亲教我的道理”，故
该从句应用what引导。D选项正确。引导名词性从句时，how表方式，意为“如何”；which意为“哪一个”，that在只起引导从句的作用，不做成分。
3.By boat is the only way to get here, which is _______ we arrived.
A. where
B. when
C. why
D. how
【答案】D
【解析】考查名词性从句。句意：乘船是到达这里唯一的途径，这就是我们如何到达的。分析which 引导的非限定性定语从句可知，后面为表语从句。分析句意可知，这里用连接副词how引导表语从句，充当方式状语，表示“如何”。故选D。
4.Every year, ______ makes the most beautiful kite will win a prize in the Kite Festival.
A. whatever
B. whoever
C. whomever
D. whichever
【答案】B
【解析】句意：每年，风筝做的最漂亮的人将赢得一份奖品。根据句意并分析句子结构可知，空处引导主语从句，且在从句中作主语，指人，故选B项。
5.Jane moved aimlessly down the tree-lined street, not knowing ______she was heading.
A. why
B. where
C. how
D. when
【答案】B
【解析】考查连词。句意：Jane漫无目的地沿着绿树成荫的街道往前走，不知道要去哪里。分析句子结构可知，空处引导宾语从句，作动词knowing的宾语，且从句中缺少地点状语，故应用where 引导。
6.She asked me _______ I had returned the books to the library, and I admitted that I hadn’t.
A. when
B. where
C. whether
D. what
【答案】C
【解析】句意：她问我我是否把书还给图书馆了，我承认我还没有还。分析句子结构可知，空处引导宾语从句，且在从句中不作任何成分，只起连接作用，有根据句意可知此处表示“是否”，故用whether或if引导这个宾语从句。
7.We choose this hotel because the price for a night here is down to $20, half of _______ it used to charge.
A. that
B. which
C. what
D. how
【答案】C
【解析】考查宾语从句。“half of _______ it used to charge”是$20的同位语，即原来价格的一半是现在的$20；另外，of后跟名词或名词短语构成介宾短语，所以，这里是宾语从句；宾语从句中的charge 后面缺少宾语，所以用what来引导宾语从句，并充当宾语从句中的宾语，故选C。句意：我们选择这家宾馆是因为一晚上的住宿费降到了20美元，这是该宾馆过去要价的一半。
Ⅰ. 单项填空
1.People crowd into ________ cherry trees are blooming, appreciating the fresh spring sight.
A. what
B. when
C. which
D. where
【答案】D
【解析】考查宾语从句引导词。句意：人们涌向樱花盛开的地方，欣赏清新的春光。从句做介词into 的宾语，且从句缺少地点状语。A. what什么；B. when什么时候；C. which哪一个；D. where哪儿。故选D。
2.I guess ________ impresses me most about his painting is the colors he uses.
A. who
B. which
C. that
D. what
【答案】D
【解析】考查宾语从句。句意：我想他的画给我印象最深的是他使用的颜色。guess后是宾语从句，从句缺少引导词，且从句没有主语，所填词应该起双重作用，故选D。
3.The same boiling water softens the potato and hardens the egg. It’s about ________you’re made of, not the circumstances.
A. that
B. what
C. how
D. who
【答案】B
【解析】考查名词性从句连接词。句意：同样的沸水使土豆变软，使鸡蛋变硬。重要的是你是由什么构成的，而不是环境。本句为表语从句，从句中缺少宾语，指代事物，用what，故选B。
4.Bob made a promise to the manager ________ the work would all be finished on time.
A. that
B. what
C. which
D. whether
【答案】A
【解析】考查同位语从句。句意：鲍勃向经理保证将按时完成工作。分析句子结构可知，此处为同位语从句，从句成分完成，用that解释promise的内容，只起连接作用，无实义，故A项正确。5．What I finally believe is that it's of no importance ______ others think about you，and what matters most is the attitude of your own .
A．what B．how C．that D．way
【答案】A
【解析】考查主语从句。句意：我终于相信别人对你的看法是什么不重要，最重要的是自己的态度。该句结构复杂，that it's of no importance ______ others think about you是一个表语从句，在这个表语从句中，it是形式主语，真正的主语是后面的主语从句，引导词在主语从句中作宾语，故选A。6．________ they choose Chinese company is that China has the most advanced technology of high speed railway in the world.
A．When B．That C．Where D．Why
【答案】D
【解析】考查名词性从句连接词。句意：他们选择中国公司的原因是中国拥有世界上最先进的高速铁路技术。根据后文中国拥有世界上最先进的高速铁路技术是他们选择的原因，为因果关系，故选why。故选D。
7．He started to write his essay, safe in the knowledge ___ he wouldn’t be disturbed for a whole day.
A．whether B．what C．that D．when
【答案】C
【解析】考查名词性从句。句意：他开始写论文，因为他知道他一整天都不会被打扰。分析句子可知，that引导同位语从句，解释knowledge的内容。故选C。
8．Word has come some American guests will come for a visit to our college next week.
A．what B．that C．whether D．when
【答案】B
【解析】考查连接词。句意：有消息说下周一些美国客人要来我们学院参观。word意为“消息”，后跟that引导的同位语从句，解释说明消息的内容。故选B。
9．There are also people who object to fairy stories on the grounds ______ they are not objectively true, and that giants, witches, two-headed dragons etc do not exist.
A．that B．what C．which D．when
【答案】A
【解析】考查同位语从句的连接词。句意：也有人反对童话故事，理由是它们在客观上不真实，巨人、女巫、双头龙等不存在。分析句子可知，本句空格是同位语从句的连接词，其中“they are not objectively true, and that giants, witches, two-headed dragons etc. do not exist.”是对名词the grounds 加以解释说明，二者是同位语的关系。分析句子可知，同位语从句中不缺少成分，只是缺少一个引导词，连接词that在名词从句中不作成分，只起引导词的作用；而what、which和when都要在从句中作成分，此处不能选。因此本题选A。
10．The village isn’t ________ it used to be and the life we were used to _____ greatly since 1992. A．what；has changed B．that；changed
C．what；changed D．that；changing
【答案】A
【解析】考查名词性从句和时态。句意：这个村庄已经不是过去的样子了，我们曾经的生活自1992年以来已经发生了很大的变化。分析句子结构可知，第一空填连接代词引导表语从句，从句中缺表语，故用what，在此处可译成“……的样子”；第二空填谓语动词，主语是the life，又因为since 1992是时间状语，故时态用现在完成时，综上，故选A。
11．The reason________their failure you know is________they are lazy.
A．why；that B．that；why
C．for；that D．why；because
【答案】C
【解析】考查固定句式以及表语从句。句意：他们失败的原因是他们没有充分准备好实验。固定句型the reason for…is that…表示“……的原因是……”，for修饰the reason，第二空后为表语从句，
从句中不缺少成分，故用that引导的表语从句。综上，故选C。
12．The moment he will always remember is ________ he experienced the terrible earthquake. A．how B．that C．when D．what
【答案】C
【解析】考查表语从句。句意：他将永远记得的那一刻是他经历了可怕的地震的时候。根据句子结构分析可知，此处为表语从句，又根据句意可知，此处意为“……的时候”，故填when，选C。13．These teachers have no idea ______ it is like to earn one’s living in industry or commerce. A．which B．that C．whether D．what
【答案】D
【解析】考查宾语从句。句意：这些老师不知道在工商业中谋生是什么滋味。分析句子可知，have no idea后跟宾语从句，缺少连接词，在从句中作宾语，所以what符合语境。故选D项。14．Frankly, I still feel confused about _________ he could manage without access to the Internet for such a long time.
A．what B．why C．that D．how
【答案】D
【解析】考查连接副词。句意：坦率地说，这么长一段时间没有上网，他怎么能做到这一点，我还是感到困惑。分析句子可知，about后接宾语从句，根据句意，可以判断出，about后接表示方式的连接副词how引导的宾语从句。故D选项正确。
Ⅱ.短文改错
假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏字符号(∧)，并在其下面写出该加的词。
删除：把多余的词用斜线(＼)划掉。
修改：在错的词下划一横线，并在该词下面写出修改后的词。
注意：1. 每处错误及其修改均仅限一词；
2. 只允许修改10处，多者(从第11处起)不计分。
It can be seen from the picture Mr. Liu，who wears a mask. was walking his dog. Interestingly，his dog which also wears a mask.
In recent year ，air pollution has become more and more serious in some areas ，which have led to severe consequences. To solve this problem ，firstly of all ，we should raise the public awareness of protecting the environment. Secondly ，the government ought to punish the illegal acts as polluting the environment severe. Thirdly ，we must do our best to protecting the environment in our daily life. Only in this way can human beings and animals share a pleasant planet or live a happy life. 【答案】
It can be seen from the picture
that Mr. Liu ，who wears a mask. was is
walking his dog. Interestingly ，his dog which also wears a mask.
In recent
year years ，air pollution has become more and more serious in some areas ，which
have
has
led to severe consequences. To solve this problem ，firstly
first
of all ，we should raise the public awareness of protecting the environment. Secondly ，the government ought to punish the illegal acts as
of
polluting the
environment
severe severely
. Thirdly ，we must do our best to protecting
protect the environment in our daily life.
Only in this way can human beings and animals share a pleasant planet
or
and
live a happy life. 【文章大意】本文是一篇记叙文。文章介绍了目前空气污染的严重以及所要采取的措施。 第一处：考查主语从句。句意：从图中可以看到，刘先生戴着面具正在溜他的狗。此处it 是形式主
语，that 从句是真正的主语。故在picture 后加that 。
第二处：考查时态。句意：从图中可以看到，刘先生戴着面具正在溜他的狗。结合句意可知句子用
现在进行时态，故把was 改为is 。
第三处：考查谓语动词。句意：有趣的是,他的狗也戴着一个面具。该句中就一个谓语动词wear ，所
以就更不存在从句，故把which 去掉。
第四处：考查名词复数。句意：在最近这些年里。此处名词用复数形式，故把year 改为years 。 第五处：考查主谓一致。句意：在最近一年,在一些地区空气污染越来越严重,这导致严重后果。此处
是前面整个句子作先行词，所以后面非限制性定语从句中的谓语动词是单数第三人称形式，故把have 改为has 。
第六处：考查固定搭配。first of all“首先，最重要的是”。故把firstly 改为first 。
第七处：考查介词。句意：政府应该惩罚污染环境严重的违法行为。此处表示“所有”，故把as改为of。
第八处：考查词形转换。句意：政府应该惩罚污染环境严重的违法行为。此处polluting是动词，由副词来修饰，故把severe改为severely。
第九处：考查固定搭配。句意：在我们的日常生活中我们必须尽力保护环境。固定搭配：do one’s best to do sth.“尽某人最大努力做某事”。故把protecting改为protect。
第十处：考查并列连词。句意：只有这样,人类和动物共享一个愉快的星球并过着幸福的生活。此处表示并列的递进关系，故把or改为and。
高考英语三大从句习题精选(附答案)
名词性从句练习题 1._______ you have done might do harm to other people. A. That B. What C. Which D. This 2. They have no idea at all ____________. A. where he has gone B. where did he go C. which place he has gone D. where he has been 3. _____________ leaves the room last ought to turn off the lights. A. Anyone B. The person C. Whoever D. Who 4. Upon graduation he asked to be sent to _______________. A. where he is most needed B. where he needed C. where he is mostly needed D. where is he mostly needed 5. The early years of the D.U company were characterized by a debate concerning or individual form should have more power. A. whether the cooperation form B. either the cooperation form C. that cooperation form D.the cooperation form 6. 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 7. 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 8. _____________ the Games will be held in Beijing is not known. A. Whenever B. If C. Whether D. That 9. It worried her a bit _____________ her hair was turning grey. A. which B. that C. if D. for 10. _____________ you don't like him is none of my business. A. What B. Who C. That D. Whether 11. _____________ he said at the meeting astonished everybody present. A. What B. That C. The fact D. The matter 12. He asked _____________ for the violin. A. did I pay how much B. I paid how much
名词性从句考点归纳
名词性从句考点纳 概念: 在整个句中起名词作用的从句,包括主语从句、宾语从句、表语从句和同位语从句。 判断： 主语从句在谓语动词前，且常用形式主语it 宾语从句在动词、介词、形容词后 表语从句在系动词后（be, seem, look等） 同位语从句在名词后且引导词在从句中不作成分 连接词分为三类： 从属连词：that, (不充当从句的任何成分, 不可省，没有意义 whether/ if (不充当从句的任何成分，不可省，“是否”的意思) 连接代词：what(ever), who(ever), whom(ever), which(ever),whose: 充当主、宾、表、定 连接副词：when, where, how, why (充当状语) 名词性从句的做法 1.判断 2.从句中缺什么给什么 考点一：what vs. that what 在句中充当成分，后面跟意思是： that在从句中充当成分，后面跟，意义 you have done might do harm to other people. you don’t like him is none of my business. 考点二：that 的省略 ●由连接词that引导从句时，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，但是，从句是并列句时，第二个分句及以后的分句前的that 。 He told me (that) he will go to Shanghai tomorrow and he will visit many sights. ●that位于句首引导主语从句时，不能省略。 He will win the match is certain. It is certain that he will win the match. he will win the match is certain.
(完整版)高考英语【名词性从句】
专题十名词性从句 第一节基本知识与基本概念 【什么是名词性从句？】 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. 【宾语从句】 在句子中作宾语的从句就是宾语从句。由于这是同学们接触比较早的一种从句，应该问题不大。所以在近年的高考题中，以宾语从句的知识作为考点的题目较少。但是，宾语从句也有自己的特殊情况，如介词的宾语，形容词的宾语，宾语从句提前和并列的宾语从句等现象。如： We assumed that there would be more than 100 guests. He told the police in detail what he saw and heard. Nobody is sure what humans will look like in a million years. That will depend on whether they can get the chance. Whether I will have the time I am not sure at the moment. The conductor complained that we were not gifted in singing and that he would never come again. 【表语从句】 表语从句的最重要脸谱就是它们应该出现在系动词的后面。如： The only question left is how often the workers are paid. His idea for the coming weekend is that we go skating. 【同位语从句】 从脸谱上看，同位语从句最为麻烦。因为它们也是出现在一个名词的后面，起着解释说明的作用。
高中英语从句综合讲解
【宾语从句】 在英语中，有简单句(只含一个谓语动词)、并列句(用连词连接，含不止一个谓语动词)和复合句(含从句)。本节课我们复习复合句里面的宾语从句 ．．．．。 如：She knows that he will come back soon. I’m afraid that I can’t go to your party. 1.宾语从句的【引导词】 宾语从句的引导词分三种。 ●(1) 如果从句是陈述句，引导词用that.（that在口语中常省略） 主句：He says... 从句：He is tired of playing computer games. → He says that he is tired of playing computer games. ●(2) 如果从句是一般疑问句，引导词用if/whether，表示“是否”。 主句：I don’t know… 从句：Does Tom likes fish? → I don’t know if / whether Tom likes fish. 【注意】① whether引导的从句常与or not连用，而if不能； ②宾语从句可简化为whether to do的搭配，而没有if to do这种搭配. 如：Could you tell me whether I should finish my homework today or not? Could you tell me whether to finish my homework today? 【拓展】if有两个意思： 1. 表示“是否”，引导的是宾语从句。动词的时态视情况而定。 2. 表示“如果”，引导的是条件状语从句，时态用一般现在时表示将来（遵循“主将从现”规则）。 经典例题：--Do you know if Tom ____________(go) hiking with us ? --I’m not sure. But i f he ____________(go), I will take many photos with him . ●(3) 如果从句是特殊疑问句，直接用该疑问词来引导。 主句：Do you know… 从句：what does he want to buy? → Do you know what he wants to buy? 你知道他想要买什么吗？ 2. 宾语从句的【时态】 ■(1) 当主句是一般现在时，从句根据情况使用任何时态 如：She wants to know if I have finished my homework. 她想知道我是否已经完成了我的作业。 Do you know when he will be back? 你知道他将会什么时候回来？ ■(2) 当主句是一般过去时，从句应使用过去的某时态 如：He said that she was singing. 他说她正在唱歌。 She wanted to know if I had finished my homework. 她想知道我是否已经完成了作业。 Did you know when he would come back? 你知道他将会什么时候回来？ 【注意】格言和客观真理总是用一般现在时。 如：She told me yesterday (that) the earth travels around the sun.
高中英语人教版：必修一+名词性从句考点及易错点归纳总结+Word版
名词性从句考点及易错点归纳总结 考点：关系词的选用 原则：缺啥补啥，补缺用连接词或连接副词，具体选择看句意 易错点： 1.名词性从句关系词的省略问题：除了宾语从句可以省略that关系词外，其他的都不行。另需注意宾语从句如有两引导词that，则第一个可省，第二个不可。 2.主语从句及宾语从句常考的几个形式主语\宾语结构 （一）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 （二）形式宾语 宾语一般放在及物动词或介词之后，但是，在下列情况下，须用it作形式宾语，而将真正的宾语(常为不定式/从句)后置。
(1)动词find/feel/think/consider/make＋it＋宾补(形容词或名词)＋不定式/从句 (2)动词hate/ like/ dislike/ appreciate/enjoy＋it＋从句 (3)短语动词see to/ depend on/rely on＋it＋从句 (4)固定搭配take it for granted that/owe it to sb.that＋从句 3.if 与whether 的异同 只用whether的情况： （1）主语从句位于句子开头 （2）介词后的宾语从句； （3）引导表语从句或同位语从句； （4）与or not连用； （6）与to do 连用 3. 语序问题：含有疑问意思的语序用陈述语序 4. 时态问题：与主句保持一致，但客观真理需用一般现在时。 5. 名词性从句的虚拟语气问题→that sb (should) do 6. 其他常考的表语从句 (1)This/ That/ It is why＋表语从句(表结果)“这/那就是……的原因” (2)This/ That/ It is because＋表语从句(表原因)“这/那是因为……” (3)The reason why...is that＋表语从句“……的原因是……” 7. 同位语从句与定语从句的区分 同位语从句在句中作某一名词的同位语，位于该名词之后，用以说明该名词的具体内容。定语从句则是对于从句中的某一名词进行修饰。 常见同位语从句的名词：advice，conclusion，doubt，fact，hope，idea，news，promise，question，suggestion，thought，truth，wish，word等。引导同位语从句的引导词：that，whether，how，where，when，why等。 The manager put forward a suggestion that we should have an assistant.There is too much work
【英语】 名词性从句考点解析(Word版附答案)(word)
【英语】名词性从句考点解析（Word版附答案）（word） 一、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． is even more important is the earth cooled down, water began to appear on its surface. A. When; that; when B. What; whether; as C. What; that; as D. lt; whether; as 【答案】 C 【解析】【分析】这题考查从句的用法，第一空填what引导主语从句，在主语从句中what做主语，第二空填that引导表语从句，在表语从句中，as是引导时间状语从句，句意是：甚至更重要的是：随着地球的冷却，水开始出现在表面。选C。 4．In the past decade, our education system too much on grades. However, grades have a direct connection with future success is still a question. A. focused; whether B. focused; if C. has focused; whether D. has focused; if 【答案】 C 【解析】【分析】考查时态和主语从句。根据In the past decade,在最近的几十年里，可知句子用现在完成时态，our education system是句子的主语，单数形式，所以第一空填has focused；第二空是主语从句做主语，if是否，不能引导主语从句，所以第二空填whether。故选C。
高二英语名词性从句专项练习
高二英语名词性从句专项练习 选择最佳答案。 1. ___ She is a rich woman is known to all in the city. A. / B. That C. Who D. Because 2. My cousin asked me ___ I could lend him the Chinese novel. A. whether B. / C. that D. which 3. ___________ T he fact he was successful proves his ability. A. that B. what C. which D. why 4. “What are you doing here, Joan? ”Robert asked. A.Robert asked Joan: what she is doing there. B. Robert asked Joan what she was doing there. C. Robert asked her what was she doing there. D. Robert asked Joan she was doing what there. 5. ____ is a fact that English is being accepted as an international language. A. There B. This C. That D. It 6. _______________________ They have no idea at all . A.where has he gone B. which place he has gone C. where he has gone D. where did he go 7. The reason he has been such a success he never gives up. A. is because B. is what C. is that D. is 8. ___ Mathematics is the base of all other sciences. A. This is because B. This is that C. It is that D. Because 9. ________________________________________________ China is becoming stronger and stronger. It is no longer _______________________________________ . A.what is used to be B. what it was used to being C. what it used to being D. what it was used to be 10. _______________________________ T he reason why he hasn't come is . A. because his mother is ill B. because of his mother's being ill C. that his mother is ill D. for his mother is ill 11. ________________ T he man asked . A. what was going on there B. what it was going on there C. what's going on there D. what going on there 12. ___ leaves the room last ought to turn off the light. A. Anyone B. The person C. Whoever D. Who 13.It was possible, but not probable ___ manager of the firm. A. he will be elected B. he must be elected C.that he would be elected D. that he must be elected 14.It's uncertain ____ the experiment is worth doing.
近五年高考英语语法填空从句总结
近五年高考英语语法填空从句总结 从句一直以来都是高考英语语法填空题的必考点。从句是相对于主句而言的，即它是从属 于某一个主句，而不能单独作一个句子。在英语中，主要有三大从句，即名词性从句(包括主语从句，宾语从句，表语从句，同位语从句)、形容词性从句(即定语从句)、副词性从句 (即状语从句,包括时间、条件、结果、目的、原因、让步、地点、方式等)。 高考中从句知识点考查最多的是定语从句。我们将近五年高考题中语法填空题涉及的从句 进行总结，希望可以为英语老师们帮助学生解答这一类题型提供助力。 2019年 全国I卷 While they are rare north of 88°,there is evidence61 they range all the way across the Arctic, and as far south as James Bay in Canada. 全国 II卷 Now Irene Astbury works from9 am to 5 pm daily at the pet shop in Maccles field,62she opened with her late husband Les. 全国 III卷 They were well trained by their masters64 had great experience with caring for these animals. 浙江卷 On the edge of the jacket, there is a piece of cloth 58 gives off light in the dark. 2018年 全国I卷
2021年高考英语语法核心考点复习：名词性从句知识点
2021年高考英语语法核心考点复习：名词性从句知识点 概述：名词性从句的功能相当于名词。根据其在句中充当的成分，可分为：主语从句、宾语从句、表语从句和同位语从句。 主语从句 在复合句中做主语的从句叫主语从句。引导主语从句的连词：that（无意义，所引导的主语从句是完整的），whether （是否），if （是否）（通常只能用于it作形式主语的主语从句），连结代词： who （谁）（主格）, whom （谁）（宾格）, whose（谁的）（所有格）, what （什么，所……的（东西或事情））, which （那个，那些），whoever （无论谁）（主格）, whomever （无论谁）（宾格）, whatever（无论什么）, whichever （无论那个，无论那些），连接副词： when（何时）, where （何地）, how （怎样，如何）, why （为什么）等。如： That the 2022 Winter Olympic Games will be held in Chengde is known to us all. =It is known to us all that the 2022 Winter Olympic Games will be held in Chengde. =What is known to us all is that the 2022 Winter Olympic Games will be held in Chengde. =As is known to us all, the 2022 Winter Olympic Games will be held in Chengde.
高三英语名词性从句习题
名词性从句 （一）名词性从句的种类 在句子中起名词作用的句子叫名词性从句。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、介词宾语、表语、同位语等，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。 主语从句 主语从句是在复合句中充当主语的从句 That price will go up is certain. Whether we go by train or by boat makes no difference. Who will write the poem has not been decided yet. What surprised us is that he lost in the game. When he will be back depends on the weather. Where we live doesn’t matter. How the pyramids were built was still a mystery. Watever he did is right. Whoever comes will be welcome. Whichever you want is yours. 名词性从句作主语也常用先行词it做形式主语，而将从句置于句末。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。 It is a pity that you missed the concert. 很遗憾你错过了那场音乐会。 宾语从句 宾语从句就是在复合句中作宾语的名词性从句(及物动词，介词和形容词后) We hope that you will enjoy your stay here. Tell me why you don’t like school. Don’t ask about what the meeting is for.We are certain that this is true. 动词+ it +从句（it没有任何意义） I heard it that he had gone abroad. I hate it when people speak with their mouth full. 主语+ 谓语+ 形式宾语it + 宾补+宾语从句 I feel it a terrible thing that I have to get up so early. I took it for granted that you would stay with us. 表语从句 表语从句是在复合句中作表语的名词性从句，放在系动词之后 The reason was that he didn’t work hard.New York is no longer what it was ten years ago. That is why he turned me down. The book is where you left it. 同位语从句 同位语从句就是在复合句中作名词的同位语的名词性从句。 He accepted the fact that she would never come back. Do you have any ideas where we can get cheaper secondhand car? ( 二) 名词性从句的连词 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 I.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.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，这一情况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。
高二英语名词性从句
高二英语名词性从句 要点精讲 高考重点要求 1．掌握主语从句、宾语从句、同位语从句、表语从句的基本句型结构。 2．弄清名词性从句的连词意义，掌握其用法。 3．根据句子语义确定使用何种从属连词。 名词从句分为：主语从句、宾语从句、同位语从句、表语从句。我们看一下它们的属性。 如：that he failed the entrance examination 1)________made all of us surprised. 2)He told me ________. 3)The result is _______. 4)The news _____surprised me. 我们在四个句子中可以填入that he failed the entrance examination这个句子，发现都可成立。从上例不难看出，从本质上讲，这四类句子的属性是相同的，即：都起名词作用，只不过称谓不同,在整个句子中担当成分不同而已。 纵观几年高考，对复合句的考查重在连词，名词从句也不例外，基本上是针对引导词设题。 引导词的分类： 1．连接代词：what , who ,whom ,whose , which ，whatever,whoever,whichever,且这些词在从句中担当主、宾、表、定语作用。 2．连接副词：why, when , where, how 在从句中充当时间、地点、原因、方式、程度状语。 whether , if在从句中不充当成分，但整个句式中不可缺少，用以体现事件的不确定性。 3．that 是名词从句中一个很活跃的词，但它只起连接作用，陈述某一事实，引导宾语从句时某些情况可以省略。 针对如下情况，可进行对比： 1)______he will come to call on is uncertain . 2)_______he will come to call on us is uncertain. 3)_____ he will come to call on us makes us unhappy. 从第一句中我们可以看出主语从句本身并不完整，缺少call on 的宾语，应加who; 第二句中表语为uncertain ,可知主语部分为未知信息，可加入when, why ,how ,whether 等; 第三句表一种已知事实，故应加入that 。 二．that ,whether, if 在名词从句中的使用情况
高考英语主语从句讲解
高考英语主语从句 定义：用作主语的从句叫主语从句，它是名词性从句之一。主语从句的时态：不受主句的时态影响和限制。引导主语从句的连接词有： 从属连词: that, whether； 连接代词: who (whoever), whom, whose, what (whatever)和which (whichever)； 连接副词: when, where, how和why。 连接词： 1. 从属连词：that，whether 1）that引导主语从句只起引导作用，在主语从句中不充当任何成分，that本身无实际意义，但不能省略。2）whether意为“是否”，放在句首句末皆可。由whether引导的名词从句做主语，表语，介词宾语，同位语时！不可用if代替。 a.That price will go up is certain. b. Whether they would support us was a problem. 他们是否会支持我们还是一个问题。 2. 连接代词who ，what ，which, whatever, whichever, whoever (Who, whom, which, what可以和ever构成合成词，和what一样引导从句，ever起到强调作用。此类主语从句不能用形式主语it引导，它们在句子中担任成分，不能省略，语序为陈述语序，既有疑问含义,又起连接作用,同时在从句中充当各种成分。 Which side will win is not clear. Whoever breaks the law will be punished. Whatever he did is right. Who killed the scientist remains a question. 1）What和that引导的主语从句的区别：that 只起引导作用，不充当任何成分，没有意思。What 不仅起引导作用，还要充当一定成分(主语、宾语或表语)，意思是：“什么”。 What we need is money. That he will come is certain. 2）whatever / whoever的用法（~ever=no matter ~---让步状语从句中） whatever / whoever可以引导主语从句,并在句中作主语、宾语、表语等,不含疑问意义。whatever相当于anything that; whoever 相当于anyone who。例如: Whoever(Anyone who) wants to enter into this school must take the exam. Whatever(Anything that) she did was right. 3. 连接副词when，where，how，why等。既有疑问含义,又起连接作用,同时在从句中充当各种成分。How this happened is not clear to anyone. When he will be back depends on the weather. When we’ll start tomorrow will be told soon. Where the test will be given is not yet decided. 4. 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. 例: That we shall be late is certain. -- It’s certain that we shall be late. 1）用it 作形式主语的结构 A. It + be + 形容词+ that 从句 (obvious, true, surprising, good, wonderful, funny, possible, likely, certain, probable, etc.) 如：It is certain that she will do well in her exam. B. It + be + 名词词组+ that 从句(an honour, a fact, a pity, etc）如： It is a pity/shame that... 遗憾的是…… It is a surprise that…令人惊奇的是… It is a fact that… …是事实It is common knowledge that… …是常识 It’s a pity that we can’t go. C. It + be + 过去分词+ that 从句(said, reported, thought, expected, decided, announced, etc。）如：It is said that Mr. Green has arrived in Beijing. D. It + 不及物动词或短语+ that 从句( seem，happen, doesn’t matter ,turn out）。如： It happened that I was out that day. It doesn’t matter whether she will come or not. 2) 对于以连接代词(副词)引导的主语从句,可以使用形式主语代主语从句,也可直接在句首使用主语从
名词性从句知识点总结
名词性从句 名词性从句相当于名词，可分别作主句的主语、表语、宾语和同位语。因此，名词性从句厅分为主语从句、表语从句、宾语从句和同位从句。 （一）引导名词性从句的连接词 1、连接代词：who, whose, whom, what, which。有词义，在从句中担任成分，如主语、表语、宾语、或定语等。 2、连接副词：when, where, why, how。有词义，在从句中担任成分，作状语。 3、连接词：that, whether, if, as if。that 无词义，在从句中不担任成分，有时可省略；if (whether), as if虽有词义，但在从句中不担任成分。 注意： 1、连接代词与连接副词在句中不再是疑问句，因而从句中谓语不用疑问式。连接代词与连接副词在从句充当句子成分，连接词whether 和if（是否），as if（好象）在从句中不充当句子成分，只起连接作用。根据句义，如果连接代词与连接副词，whether、if 和as if都用不上时，才用that作连接词（that本身无任何含义）。 2、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. （二）主语从句 1、主语从句在复合句作主语。 e.g. Who will go is not important. 2、用it作形式主语，主语从句放在句末。 e.g. It doesn’t matter so much whether you will come or not. 主要句型有： （1）It+be+形容词+that从句。 It is probable that he told her everything. 很可能他把一切都告诉她了。 （2）It+be+名词词组(no wonder, an honour, a good thing, a pity, no surprise, etc.)+that从句。It’s no surprise that our team should have won the game. 我们没赢这场比赛真意外。 （3）It+be+过去分词+that从句。 It is said that Mr. Green has arrived in Beijing. 据说格林先生已经到了北京。 （4）It+seem, happen等不及物动词及短语+that从句。 It seems that Alice is not coming to the party at all. Alice似乎不来参加晚会。 （5）It+doesn’t matter (makes no difference, etc.)+连接代词或连接副词引起的主语从句。 It doesn’t matter whether she will come or not. 她是否来这无关紧要。 It makes no difference where we shall have the meeting. 我们在哪里开会毫无区别。 3、that引导主语从句时，不能省略。 e.g. That he suddenly fell ill last week made us surprised. 4、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. 5、if不能用在主语从句中，而是用whether Whether he left (or not) is unknown 6、引导主语从句的关联词有三类： (1)从属连词that。