专题07 名词性从句-2025年高考英语一轮复习语法知识必备（(知识点课件+精析精练)）

这是一份专题07 名词性从句-2025年高考英语一轮复习语法知识必备（(知识点课件+精析精练)），文件包含07名词性从句pptx、07名词性从句docx等2份课件配套教学资源，其中PPT共33页， 欢迎下载使用。
考点1　引导词【考题再现】①(2024·蚌埠模拟) Beijing will carry ut measures t help bridge ______has becme a digital divide fr many lder peple t make sure they share in the benefits f a smart sciety.②(2024·芜湖模拟) Many f us read petry simply because we ften feel depressed and hpelessly lst, and in petry we see ______beautiful and strange everything is.③(2024·北京丰台模拟) T imprve efficiency, a tea-picking rbt was made and it is in trial peratin nw.It can psitin _______the target bud and leaf are and cut them precisely.
【要点归纳】　　名词性从句由不同的引导词引导,从句一般保持陈述语序。　　引导名词性从句的连接词可分为3类:
1.that引导的名词性从句that只起连接主句和从句的作用,在从句中不担任任何成分,本身也没有任何意义。该从句作主语通常用it作形式主语,而将从句置于句末。Scientists have btained mre evidence that plastic is finding its way int the human bdy.(同位语从句)It is suggested that we shuld limit the amunt f cars t imprve ur envirnment. (主语从句)
2.wh-词引导的名词性从句wh-词包括wh、whm、whse、whever、what、whatever、which、whichever等连接代词和where、when、why等连接副词。wh-词既起连接作用,还可充当主语、宾语和表语等。从句作主语也常用it作形式主语,而将wh-从句置于句末。It remains t be seen hw these bstacles will help r hurt its ecnmy.
【特别提示】(1)what引导的名词性从句what作连接代词引导的名词性从句既可以表示一个问“什么……?”的问题, 也可以表示相当于“名词/代词+关系代词引导的定语从句”的结构,意思是“所……的事/物”, 相当于the thing(s) that/which...。 This is what (=the thing that)we have been lking frward t fr years.(2)wh-ever既可引导名词性从句,又可引导让步状语从句;而n matter wh-只能引导让步状语从句。The gld medal will be awarded t whever wins the first place in the bicycle race.N ne is allwed t break the regulatins, whever he is.
3.if、whether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。The questin is whether technlgy is ging t be ur servant r ur master. (2)whether与if引导宾语从句时大多数情况下可以互换, 但下列情况只能用whether:①后面直接跟r nt时They nw have tw weeks t decide whether r nt t buy it.②用于介词后引导宾语从句时But if he’s ut there every day and playing hard, yu shuld praise his effrt regardless f whether his team wins r lses.
【要点巩固】①(2024·新乡模拟) Ever wnder ______it wuld feel like t hide away in a dark cave withut being cnnected t the utside wrld fr 40 days?②(2023·浙江高考·1月卷) _______matters is nt just the utside f a string f symbls, but the inside t, nt just ______they are arranged but what they mean.③(2023·新高考Ⅰ卷) With the right cmbinatin f animals and plants, he figured, maybe he culd clean up waste the way nature did.He decided t build ______he wuld later call an ec-machine.
④(2023·新高考Ⅱ卷) Yu’ll want t lk back n yur jurney t see ______far yu’ve cme.⑤(2023·全国甲卷) Carsn prves _____a simple literary frm that has been passed dwn thrugh the ages can still be emplyed tday t draw attentin t imprtant truths.
考点2　主语从句【要点归纳】　　主语从句是在复合句中充当主语的从句,通常放在主句谓语动词之前或由形式主语it代替,而本身放在句子末尾。【特别提示】it作形式主语的句型有:(1)It+be+名词+从句It is a fact that... 事实是……It is gd news that... ……是好消息It is a questin that... ……是个问题It is cmmn knwledge that... ……是常识
类似的可用于该结构的词还有:a pity、a wnder、a gd thing、n wnder、a surprise等。It is gd news that ur team has wn the champinship.It is a pity that I have missed a wnderful bxing match.
(2)It+be+形容词+从句It is necessary that...有必要……It is clear that... 很清楚……It is likely that... 很可能……It is imprtant that... 重要的是……类似的可用于该结构的形容词还有:strange、natural、bvius、true、gd、wnderful、pssible、unlikely、unusual、certain、evident、wrthwhile、surprising、interesting、astnishing等。It is likely that the gds have met with sme accident n the way. It is strange that he shuld have gne away withut telling us.
(3)It+be+过去分词+从句It is said that...据说……It is reprted that...据报道……It has been prved that...已证明……It must be pinted ut that...必须指出……类似的可用于该结构的过去分词(词组)还有:knwn、estimated、expected、believed、thught、hped、nted、discussed、required、decided、suggested、demanded、made clear、fund ut等。It is reprted that the affected area is under further detailed investigatin. It has been prved that every substance, n matter what it is, is made up f atms.
【要点巩固】①(2024·河南联考) _______makes the Qatar Wrld Cup unique is the kind f technlgy China is prviding.②(2024·韶关模拟) But ______was pleasantly surprising was that the lingering fragrance f the tea and the crunchy texture f the shrimp wn the emperr ver.③(2024·潮州模拟) The scientists believe ______caused whales t get s large was a change in the Earth’s climate nly abut 3 millin years ag.
④(2022·全国甲卷) _______peple frget is that the Italians, when they came t Australia, brught 2,000 years f their culture, the Greeks sme 3,000 years, and the Chinese mre still.⑤Hwever, if thers benefit in the prcess, and I get sme reward t, des it really matter _______my mtivatin lies?
考点3　宾语从句【要点归纳】　　宾语从句在复合句中起宾语的作用,既可作动词的宾语,也可作介词的宾语(作介词的宾语时必须由wh-疑问词引导)。1.that的省略与否　　that引导宾语从句时, 在句中不充当任何成分,在口语或非正式的文体中常被省去。但如果是由and连接两个并列的宾语从句时,第二个宾语从句前的that不可省略。He said (that) yu were t yung t understand the matter and that he was asked nt t tell yu.
2.句子的语序由wh、whm、which、whse、what、when、where、why、hw、whever、whichever等引导的宾语从句,应注意从句的语序要用陈述语序。Can yu explain why he didn’t cme t the party last Sunday?
【特别提示】(1)think、believe、imagine、suppse等动词引导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转移到主句中。I dn’t think the fd here agrees with me. We dn’t believe he stle mney frm the shp. (2)动词 dubt 用在疑问句或否定句中时,其后宾语从句常用 that 作连接词;用在肯定句中时,连接词用 whether 或 if 皆可,而不用 that。D yu dubt that he will win the match? I dn’t dubt that he can d a gd jb f it. He ften dubts whether/if he is adequate as a father.
【要点巩固】①(2024·成都模拟) At the final level, als called the palace examinatin, candidates needed t shw ______they analyzed cntemprary plitical prblems.②(2024·郑州模拟) The neural netwrk can infer ______the wrd means by tracking where it appears in a sentence.③(2024·汕头模拟) This gives evidence t ______the Chinese ecnmy is grwing s fast.
④(2024·北京朝阳模拟) But as lng as we keep the ancient exchanges running, we have a way t remember and understand _______we cme frm.⑤(2024·开封模拟) By creating rganized t-d lists, yu can priritize the things yu need t d, keep track f ______still needs t be cmpleted, and feel prductive and prepared in all areas f yur life.
考点4　表语从句【要点归纳】　　表语从句除了用that、what、when、why、whether、hw等引导外,还可由because、as if(thugh)等引导。that 引导表语从句,无任何意义,只起连接作用,不可省略。Withut his supprt, we wuldn’t be where we are nw.By bat is the nly way t get here, which is hw we arrived.It lks as if a sandstrm is cming up. The fact f the matter is that mst peple cnsume far mre prtein than they actually need.
【特别提示】(1)whether可引导表语从句,但与之同义的if不用于引导表语从句。The questin is whether he will jin us next time. (2)That is because...指原因或理由。That is why...指由于各种原因所造成的后果。He did nt see the film last night. That is because he had t help his little sister with her hmewrk.He had seen the film befre. That is why he did nt see it last night.(3)当主语是reasn时,表语从句要用that引导而不用because。The reasn why I was late was that my car brke dwn n the way.
【要点巩固】①(2024·安阳模拟) Why the trees here are t be cut dwn in a planned way is ______peple wuld dubt.②(2024·聊城模拟) Yunger generatins have a real sense f cultural heritage, and that’s ______I am incredibly ptimistic abut the future f the craft.③(2024·潍坊模拟) It suggests simply eating smaller meals,less frequently, is ______ultimately leads t weight lss.④(2022·新高考Ⅰ卷) The cre (核心) f yur relatinship is _____yu will always be there t help each ther.⑤The real prblem is _________r nt yu can finish the task n yur wn n time.
考点5　同位语从句【要点归纳】　　同位语从句用于对前面出现的名词作进一步说明,一般用连词that引导。由于名词的意义不同,也可用whether、wh、when、where、what、why、hw等引导。常见的后跟同位语从句的名词有fact、idea、belief、news、hpe、cnclusin、evidence、suggestin、rder、prblem、reprt、decisin、wrd(消息)等。We came t the decisin that we must act at nce. I have n idea when he will cme back.We dn’t understand the prblem why this is the best chice.
【特别提示】that引导同位语从句和定语从句的区别:引导同位语从句的that不充当句子成分,且不可省略;that引导的定语从句成分是残缺的,that代替先行词在从句中充当主语、宾语或表语,充当宾语时可省略。We are glad at the news that he will cme. 听到他要来这个消息我们很高兴。(news的内容就是that he will cme,故此处that引导的是同位语从句)We are glad at the news that he tld us. 听到他告诉我们的这个消息我们很高兴。(that从句是限制the news的内容的,即我们高兴只是因为他告诉的这个news而不是其他的news,故此处that引导的是定语从句)
【要点巩固】①The ne in the new envirnment shuld be sympathetic t the fact _____yur friend may feel abandned.②It is ur hpe _____in cming decades, advances in science will ffer new perspectives (视角) frm which t study hw peple manage their lives.③Wrd came _____the experienced teacher had resigned frm his pst withut any early warnings.④While 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.⑤Despite the fact _____peer pressure is mst cmmnly seen as a very negative issue, it can be seen psitively in sme situatins.
【特别提示】语法填空题名词性从句考法　　第一步判断是否属于名词性从句。第二步判断名词性从句中的连接词; 若从句中缺少主语、宾语或表语, 用连接代词;若缺少状语就用连接副词;如果不缺少成分则要考虑意思是否完整, 是否需要用whether/if;如果不缺少成分且意思完整则用that。
【链接写作】 名词性从句包括主语从句、宾语从句、表语从句和同位语从句。名词性从句在写作中应用广泛,可以使文章更加精练、简洁、准确,可以让文章更加出彩,所以我们建议考生在一篇写作中尽量要加上1~2个名词性从句。如2023年新高考Ⅰ卷书面表达:I prmised that I wuld live up t his expectatin and never stp writing in English thugh it was my secnd language.我保证我不会辜负他的期望,尽管英语是我的第二语言,但我永远不会停止用英语写作。
该句中包含了that引导的__________和thugh引导的______________。再如2023年全国甲卷书面表达:One f his achievements was that he discvered the surce f the Jinsha River, which he prved was the surce f the Yangtze River.他的成就之一是他发现了金沙江的源头,他证明了金沙江就是长江的源头。该句中包含了that引导的__________和which引导的__________。
高考真题训练1.(2023·新高考Ⅱ卷) They als need t be ready t give interviews in English with internatinal jurnalists.This is ______they need an English trainer.2.(2022·浙江高考·1月卷) Cbb, fr her party, started t ask cnference rganizers wh invited her t speak ___________she culd d s remtely; abut three-quarters f the time, they agreed.3.(2021·天津高考) What puzzles Lily’s friends is ______she always has s many crazy ideas.
whether/if
4.(2020·浙江高考) Over thusands f years, they began t depend less n ______culd be hunted r gathered frm the wild, and mre n animals they had raised and crps they had swn.5.(2019·北京高考) What students d at cllege seems t matter much mre than _______they g.6.(2022·全国乙卷) It is calculated _____Eurpean railways alne spend apprximately 20 billin eurs a year n maintenance, including sending maintenance staff, ften at night, t inspect and repair the rail infrastructure.
7.(2022·全国乙卷) Make sure yu have cmmunicated with yur friend abut ______frequently each f yu wants t be cntacted and ______methd wrks best fr yu bth.8.(2022·新高考Ⅰ卷) He always participated t the best f his ability in whatever they were ding.That was ______nne f the children thught it unusual that David had decided t jin the crss-cuntry team.9.(2021·新高考Ⅰ卷) _______is s breathtaking abut the experience is the ut-f-this-wrld scenes.