2026版高考英语一轮总复习专题突破训练题专题三三大从句和特殊句式第三讲名词性从句

这是一份2026版高考英语一轮总复习专题突破训练题专题三三大从句和特殊句式第三讲名词性从句，共5页。试卷主要包含了连接词that的用法等内容，欢迎下载使用。
What① wrries my classmate，Mary，a lt these days is that② she is putting n weight quickly and thus falls ill frequently.She has sme dubts whether③ she eats t much fast fd high in fat r sugar.Als，with the Cllege Entrance Examinatin appraching，she becmes mre stressful and she can't sleep well these days.Maybe this explains that④ she has becme fatter these days，she thinks.
用法感悟
①What引导 主语 从句，并在从句中作 主语 。
②that引导 表语 从句，在从句中不作成分，不能省略。
③whether引导 同位语 从句，意为“是否”，在从句中不作成分，不能省略。
④that引导 宾语 从句，在从句中不作成分，可以省略。
名词性从句是在句子中起名词作用的句子，它的功能相当于名词(短语)，在复合句中可作主语、宾语、表语、同位语等，因此名词性从句又可分为主语从句、宾语从句、表语从句和同位语从句。名词性从句的引导词及其用法如下：
考点一 连接词that与whether/if
一、连接词that的用法
1．that在名词性从句中不作任何句子成分，引导宾语从句时有时可以省略，引导主语从句、表语从句和同位语从句时不能省略。
I lve the fact that Chinese buses, mtrcycles, trains and aircraft are either ecnmical r cheap.
我喜欢中国的公共汽车、摩托车、火车和飞机，既经济又便宜。
【点津】
that引导宾语从句时几种不能省略的情况：
①that从句作介词的宾语时；②动词后跟有多个that引导的宾语从句时，只有第一个that可以省略，从第二个从句开始that不可省略；③宾语从句前有插入语时；④that引导的宾语从句位于句首时。
2．that引导主语从句时，常用it作形式主语的常用句型有：
(1)It＋be＋形容词(necessary, right, likely, unlikely, wrng, imprtant, certain等)＋that从句
It is unlikely that I shuld accept such an ffer as that.
我不可能接受那样的提议。
(2)It＋be＋名词(短语)(a pity, a shame, a surprise, n wnder等)＋that从句
It is a pity that yur cmpsitin has s many spelling mistakes.
很可惜，你的作文有这么多的拼写错误。
(3)It＋be＋过去分词(said, reprted, decided等)＋that从句
It is decided that the meeting has been put ff till next Mnday.
已决定会议推迟到下周一举行。
(4)It＋特殊动词(短语)(seems, appears, happens, matters, turns ut, makes n difference 等)＋that从句
It turns ut that the brain needs exercise in much the same way ur muscles d.
结果表明，大脑像肌肉一样都需要锻炼。
【点津】
在以下主语从句中，常使用虚拟语气，即谓语动词用“shuld＋动词原形”形式，其中的shuld可以省略。
①It is a pity＋that ...
②It is necessary/strange/imprtant/natural ...＋that ...
③It is suggested/requested/required/prpsed/desired...＋that...
3．it作形式宾语的宾语从句
(1)find, feel, think, cnsider, make, believe 等的宾语后有宾语补足语时，需用it作形式宾语而将that引导的宾语从句后置。
He has made it clear that the meeting will nt be pstpned.
他清楚地表明会议不会被推迟。
(2)一些动词短语see t, depend n, rely n 等常用it作形式宾语，而将宾语从句后置。
I shall see t it that he is taken gd care f when yu are absent.
你不在的时候，我保证照顾好他。
二、连接词whether与if引导的名词性从句
1．引导主语从句(if引导主语只能放在句尾，前面要用it作形式主语。)、表语从句、同位语从句时一般用whether。
2．whether与if引导宾语从句时大多数情况下可以互换，但下列情况下宜用whether：
①后面直接跟r nt时；
②用于介词后引导宾语从句时。
【点津】
dubt后接从句时，如果用于肯定句，从句的引导词用whether或if；用于否定句或疑问句时，从句的引导词常用that。
The dctr really dubts whether/if my mther will recver frm the serius disease sn.
医生真的怀疑我母亲是否能很快从重病中康复。
即时演练(一)
单句语法填空
1． That peple in Lndn speak fast and use unfamiliar wrds made Xie Lei cnfused at first.
2．Dick enjys painting but he knws the fact that he desn't have what it takes t be a prfessinal.
3．His capability has never been in dubt; the questin is whether he is prepared t put effrts.
4．Smetimes, I really dubt whether/if there is lve between my parents.They quarrel n a regular basis.
5．It is reprted that we must be cautius abut earthquakes nwadays.
考点二 连接代词
一、what的用法
what可引导主语从句、宾语从句、表语从句和同位语从句，在从句中作主语、表语、宾语或定语等。what引导名词性从句时有两个意思：一是表示“什么”，带有疑问意味；二是表示“……的东西或事情”，相当于一个先行词后接一个关系代词。
Our teachers always tell us t believe in what we d and wh we are if we want t succeed.
我们的老师总是告诉我们，如果我们想要成功，要相信我们所做的事情和我们自己。
二、whatever，whever, whmever，whichever与what, wh, whm, which的区别
What wrries us mst is wh let ut the secret.
最令我们担忧的是谁泄漏了秘密。
Whever breaks the law shuld be punished.
任何触犯法律的人都应该受到惩罚。
即时演练(二)
单句语法填空
1． What she culdn't understand was why fewer and fewer students shwed interest in her lessns.
2．We wrte a letter f thanks t whever had helped us.
3．The prblem is wh shuld be sent t help them ut.
4．I'm in a puzzle abut which is the right answer t the questin.
5．Libraries have evlved as the public's needs have changed. In fact, if yu haven't visited yur lcal public library fr a while, yu may be surprised at what it nw has t ffer.
考点三 连接副词
引导名词性从句的连接副词有when，where，why，hw等，它们均在从句中作状语。
I have n idea when she will be back.
我不知道她何时回来。
I've been thinking abut hw we can make the newspaper mre interesting.
我一直考虑我们如何能使报纸更有趣。
That's why I want yu t wrk there.
那就是我要你在那儿工作的原因。
即时演练(三)
单句语法填空
1．What puzzles Mike's friends is why he refused an ffer frm Yale university yesterday.
2．What sme teenagers dn't realize is hw difficult life can be after they get addicted t drugs.
3．It is the ability t d the jb that matters, nt where yu cme frm r what yu are.
4．Getting up early als relieves stress and tensin because it gives yu the time t squeeze in a wrkut befre yu get distracted (分神). This is why mrning peple tend t be healthier and happier.
【例1】 The student cmpleted this experiment t make what Prfessr Jseph had said cme true.
分析：句意：这个学生完成这个实验是为了使约瑟夫教授所说的成为现实。make sth. cme true让某事成为现实。设空处引导宾语从句，并在从句中作had said的宾语，应用连接代词what。故填what。
【例2】 Hwever, there are prblems.The biggest ne is that there are nt enugh lw-priced items.
分析：句意：然而，存在一些问题。最大的问题是没有足够的低价商品。设空处引导表语从句，从句意思完整且不缺少任何成分，应用that引导。故填that。whatever
意为“……的任何(事物)，无论什么东西”，相当于anything that，在名词性从句中作主语、宾语或定语
what
可引导名词性从句，在从句中作主语、宾语、表语或定语
whever
意为“……的任何人”，相当于anyne wh，在名词性从句中作主语或宾语
wh
可引导名词性从句，在从句中作主语、宾语或表语，通常保留疑问的含义，即“谁”
whmever
意为“任何人；无论是谁”，在名词性从句中作宾语
whm
在名词性从句中作宾语，意为“谁”
whichever
意为“无论哪个/哪些”，表示有范围的选择，在名词性从句中一般作定语
which
意为“哪一个”，在名词性从句中可一般作定语，表示有范围的选择