2025版高考英语一轮总复习语法专题突破专题3第3讲名词性从句课件

这是一份2025版高考英语一轮总复习语法专题突破专题3第3讲名词性从句课件，共42页。PPT课件主要包含了That，that，whether，whetherif，What，whoever，who，which，what，why等内容，欢迎下载使用。

考点突破 · 精讲即练
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．______ peple in Lndn speak fast and use unfamiliar wrds made Xie Lei cnfused at first.2．Dick enjys painting but he knws the fact ______ he desn't have what it takes t be a prfessinal.3．His capability has never been in dubt; the questin is _________ he is prepared t put effrts.
4．Smetimes, I really dubt ____________ there is lve between my parents.They quarrel n a regular basis.5．It is reprted ______ 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．______ she culdn't understand was why fewer and fewer students shwed interest in her lessns.2．We wrte a letter f thanks t _________had helped us.3．The prblem is _____ shuld be sent t help them ut.4．I'm in a puzzle abut _______ 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 ______ 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 _____ he refused an ffer frm Yale university yesterday.2．What sme teenagers dn't realize is _____ difficult life can be after they get addicted t drugs.3．It is the ability t d the jb that matters, nt _______ 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 _____ mrning peple tend t be healthier and happier.
集训夯基 · 素养提能
Ⅰ.单句语法填空1．(2022·浙江卷)Cbb, fr her party, started t ask cnference rganizers wh invited her t speak ____________ she culd d s remtely.解析：考查名词性从句。句意：对于她的出席，Cbb开始询问邀请她的会议组织者是否可以远程进行演讲。显然ask后面出现了一个宾语从句，宾语从句句意不完整，whether/if“是否”符合语境。故填if/whether。
2．(2021·天津卷)What puzzles Lily's friends is _____ she always has s many crazy ideas.解析：考查名词性从句。句意：令Lily的朋友们感到困扰的是她为什么总有这么多疯狂的想法。分析句子结构可知，本句是一个表语从句，设空处需填一个引导表语从句的连接词。根据句意可知，这里要有连接副词why引导表语从句，表示“为什么”。故填why。
3．(2021·新高考Ⅰ卷)______ is s breathtaking abut the experience is the ut-f-this-wrld scenes.解析：考查名词性从句。根据句子结构可知，句中缺少引导主语从句并在主语从句中作主语的连接代词。连接代词what具有这一功能，相当于 the thing that。故填What。
4．(2020·江苏卷)It is nt a prblem _________ we can win the battle；it's just a matter f time.解析：考查名词性从句。句意：我们能否打赢这场战斗不是问题；这只是时间问题。it是形式主语，whether引导的从句是真正的主语。故填whether。
5．(2020·天津卷)The student cmpleted this experiment t make cme true ______ Prfessr Jseph had said.解析：考查名词性从句。句意：为了使约瑟夫教授所说的成为现实，这个学生完成了这个实验。 Prfessr Jseph had said作make的宾语从句，该从句中，空处在从句中作said的宾语，表示“……所说的话”，因此应用what引导该从句。故填what。
6．(全国Ⅰ卷)While they are rare nrth f 88°，there is evidence ______ they range all the way acrss the Arctic，and as far suth as James Bay in Canada.解析：考查名词性从句。分析句子结构可知，主句为there be句型，且结构完整，空格后为同位语从句，解释说明抽象名词evidence的内容。故填that。
7．(全国Ⅲ卷)I'm nt sure ___________ is mre frightened，me r the female grilla(大猩猩) that suddenly appears ut f nwhere.解析：考查名词性从句。句意：我不确定谁(哪一个)更害怕，是我还是那只不知从哪里突然冒出来的雌猩猩。分析句式结构可知， 空格后为宾语从句，从句缺主语。故填wh/which。
8．(江苏卷)Scientists have btained mre evidence ______ plastic is finding its way int the human bdy.解析：考查名词性从句。从句不缺句子成分，且解释说明抽象名词evidence的内容，所以用that引导同位语从句。故填that。9．(北京卷)This is ______ my father has taught me—t always face difficulties and hpe fr the best.解析：考查名词性从句。根据设空处前的is 可以判断，此处是一个表语从句。 从句中谓语动词用法为teach sb.sth.，缺少直接宾语。故填what。
10．(天津卷)The gld medal will be awarded t _________ wins the first place in the bicycle race.解析：考查名词性从句。介词t后是宾语从句，从句中动词wins前缺主语，而且金牌给的是“任何……的人”，因此填whever引导宾语从句。故填whever。11．(浙江卷)It is pssible ______ caffeine may cause birth defects(缺陷) in humans，t.解析：考查名词性从句。分析句子结构可知，该句是一个主从复合句，it作形式主语，that从句为真正的主语。故填that。
Ⅱ.语法填空名词性从句专练________ wrries my classmate Mary a lt these days is ________ she puts n t much weight and she is frequently ill.She has sme dubts ___________ 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 is _______ she becmes fatter these days，she thinks._______ she becmes slimmer and healthier has been her main task.S she wants t cnsult sme experts and gain sme instructins.
But where she culd get better suggestins and _______ will give her better advice als puzzle her.It is her parents' suggestin ________ she shuld cnsult Prfessr Wang in Zhngshan Hspital.Prfessr Wang suggests ________ she keep a balanced diet first.She shuld eat vegetables and fruit high in fiber，vitamin and prtein.What's mre，if she wants t lse weight，she had better take regular exercise mre than half an hur a day.Mary asked Prfessr Wang ________ she shuld take exercise.Prfessr Wang advised her t take exercise at 5 'clck in the afternn.That is ____________ she will have mre time t d sprts.It is with the help f Prfessr Wang that Mary has becme much healthier nw.
语篇导读：本文是一篇记叙文。主要讲述作者的同学玛丽的烦恼，玛丽担心自己体重过重并且经常生病，向王教授咨询，在王教授的帮助下，通过均衡饮食和运动变得越来越健康。
解析：1．考查名词性从句。分析句子可知，此空为主语从句，从句中缺少主语，表示“什么，所……的事情”。故填What。2．考查名词性从句。分析句子可知，is后面为表语从句，从句成分完整，因此用that引导，that无实际意义，在句中不作任何成分。故填that。3．考查名词性从句。分析句子可知，dubt后接的是同位语从句，从句说的是dubt的内容，从句中不缺少主语、宾语和表语成分，缺少“是否”的意思。故填whether。
4．考查名词性从句。分析句子可知，is后接的是表语从句，从句中不缺少主语、宾语和表语成分，表示“……的原因”。故填why。5．考查名词性从句。句意：如何变得更苗条和更健康已经成为她的主要任务。分析句子可知，has been前为主语从句，从句中不缺少主语、宾语和表语成分，表示“如何，怎样”。故填Hw。6．考查名词性从句。句意：但是，在哪里她可以得到更好的建议，谁会给她更好的建议，这也让她感到困惑。分析句子可知，puzzle前为主语从句，从句中缺少主语，表示“谁”。故填wh。
7．考查名词性从句。句意：她父母建议她应该咨询中山医院的王教授。分析句子可知，it为形式主语，真正的主语为空后的从句，从句中不缺少成分，且意义完整。故填that。8．考查名词性从句。分析句子可知，suggests后接的是宾语从句，从句中不缺少成分，且意义完整。故填that。9．考查名词性从句。分析句子可知，ask接双宾语，空后为宾语从句，从句中不缺少成分，根据下文可知表示“什么时间”。故填when。10．考查名词性从句。分析句子可知，is后接的是表语从句，从句中不缺少成分，表示“原因”。故填because。
Ⅲ.写作运用(根据汉语提示完成下面短文，注意名词性从句的运用)The Mment I Take Pride inWhere there is a will, there is a way.When I began t learn t ck three years ag, I failed many times.But in the end,1._____________________________________ (我所做的饭菜很可口), because I carried n with it.The first dish was fried eggs.At first, 2._______________________________________________________ (我很难控制油的温度)．In rder t learn it well, I wasted a great number f eggs.I never gave up until I fried eggs better.
what was cked by me was
it was very difficult fr me t cntrl the
very delicius
temperature f il