外研版2025届高考英语一轮复习语法突破专题3第4讲名词性从句课件

这是一份外研版2025届高考英语一轮复习语法突破专题3第4讲名词性从句课件，共23页。PPT课件主要包含了内容索引，情境导入，考点解读，技法图解，whetherif，That，that，whether，What ，whoever等内容，欢迎下载使用。

What①wrries my classmate,Mary,a lt these days is that②she is putting n weight quickly and thus falls ill frequently.She has sme dubts whether③she 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 that④she has becme fatter these days,she thinks.
①What引导　　　　　语从句,并在从句中作　　　　　语 ②that引导　　　　　语从句,在从句中不作成分,不能省略 ③whether引导　　　　语从句,意为“是否”,在从句中不作成分,不能省略 ④that引导　　　　　语从句,在从句中不作成分,可以省略 
考点1 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,用it作形式主语的常用句型(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、表语从句、同位语从句时一般用whether,不用if。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。
小题快练 单句语法填空1.(2022浙江1月卷)Cbb,fr her part,started t ask cnference rganizers wh invited her t speak 　　　　　　she culd d s remtely;abut three-quarters f the time,they agreed. 2.　　　　　　 peple in Lndn speak fast and use unfamiliar wrds made Xie Lei cnfused at first. 3.Dick enjys painting but he knws the fact 　　　　　　he desn’t have what it takes t be a prfessinal. 4.His capability has never been in dubt;the questin is 　　　　　　he is prepared t put effrts. 
考点2 连接代词一、 what的用法what可引导主语从句、宾语从句和表语从句,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……”,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。
小题快练 单句语法填空1.(2021新高考全国Ⅰ卷)　　　　　　is s breathtaking abut the experience is the ut-f-this-wrld scenes. 2.The gld medal will be awarded t 　　　　　　wins the first place in the bicycle race. 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.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3 连接副词引导名词性从句的连接副词有when,where,why,hw,whenever,wherever 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。Sit wherever yu like.你想坐在哪儿就坐在哪儿。
小题快练 单句语法填空1.(2023新高考全国Ⅱ卷改编)They als need t be ready t give interviews in English with internatinal jurnalists;this is 　　　　　　they need an English trainer. 2.What puzzles Lily’s friends is 　　　　　　she always has s many crazy ideas. 3.What sme teenagers dn’t realize is 　　　　　　difficult life can be after they get addicted t drugs. 4.It is the ability t d the jb that matters,nt 　　　　　　yu cme frm r what yu are.