2026届高考英语一轮复习名词性从句基础知识课件

名词性从句一、概念

LiHua,myidol(偶像),isafamousartist,andhelikesbasketball.总结：名词可在句中充当____语，_____语，____语，_____语。

主语同位语系V表语主语谓V宾语主宾表同位思考：如果把名词所充当的成分换成句子我们称之为什么？在英语的句子结构中，本来该由名词充当的主语、宾语、表语和同位语，由一个句子来充当，这个句子就叫名词性从句。名词性从句在功能上相当于名词二、引导词

从属连词：that(无任何词意),if/whether(是否)

连接代词：what,which,who,whom,whose,疑问词+ever

连接副词：when,where,how,why(how组成的词组如：howmany,

howlong,howfar,howmuch,howoften)(1)Whathesaidisnottrue.(2)Whetherhewillgothereisnotknown.(3)Whoevercomesiswelcome.(4)It’scertainthathewillsucceed.(5)Whentheywillstarttheprojecthasnotbeendecidedyet.三、主语从句找规律位于动词（谓语动词/系动词）之前；2、It作形式主语（1）It+be+形容词（necessary/likely/difficult/important/certain···）+that从句eg:ItisimportantthatweshouldstudyEnglishwell.（2）It+be+名词（短语）（apity/nowonder/nosurprise等）+that从句eg:Itisapitythatyoucan’tcome.1、位置（3）It+be+过去分词(said/reported/thought/believed/decided等)+that从句eg：Itissaidthatwewillhavealongholiday.（4）It+不及物动词（seems/appears/happens等）+that从句eg:Itappearsthatwewon’tbelaidoff.看起来我们不会被解雇。(1)Theyallthinkthatthegirlisverybeautiful.(2)HeaskedhowmuchIpaidforthebook.(3)Shemadeitclearthatshetriedherbesttodothejob.(4)Ifinditnecessarythatweshouldfinishthehomeworktogether.(5)Italldependsonwhetherhewillsupportme.四、宾语从句找规律1、位置：位于谓语动词，介词和部分形容词之后；2、It作形式宾语：一些动词后的宾语从句有宾语补足语时，需要用it作形式主语；（1）常这样用的动词有feel/find/think/consider/believe/guess/suppose/make等；eg:IfindithardthatwecanstudyEnglishwell.（2）动词hate/like/dislike/appreciate/enjoy等以及及物动词短语seeto(确保),dependon,relyon等后常用it作形式宾语；eg:Ishallseetoitthatheistakengoodcareofwhenyouareabsent.(1)Theproblemisthatwedon’thaveenoughmoney.(2)Theissueiswhetherwecanfinishtheprojectbythedealine.(3)Theimportantthingishowwerespondtounexpectedchallenges.(4)Ilovethissong.That’sbecauseitremindmeofmychildhood.(5)Itseemsasifheknowstheansweralready.五、表语从句找规律1、位置：位于系动词之后系动词:

(1)be(2似乎)seem,appearto(3保持)keep,remain,stay(4变得)become,turn,get,grow(5感官)look,taste,smell,sound,feel2、asif/asthough（似乎，好像）引导的表语从句，常放在be,seem,look,taste,sound等之后；eg:Itsoundsasifyouhaveagoodtime.3、because和why引导的表语从句This/Thatis/wasbecause···这是/那是因为···This/Thatis/waswhy···这是/那是···的原因eg:Hehaslungcancer.Thatisbecausehehasbeensmokingtoomuch.(1)Thenews

thathecouldn’tcomemadeusupset.(2)Ihavenoideawhethershewillattendthemeeting.(3)Ihavenoideawhattheyaretalkingabout.(4)Thereisnodoubtthatsheisthebeststudentinourschool.(5)Hisbeliefthathardworkleadstosuccessisadmirable.六、同位语从句找规律利润60%2、抽象名词：news,fact,idea,opinion,doubt,hope,wish,order,advice,suggestion,thought,decision,conclusion,question,problem,word,possibility,truth,promise等1、位置位于抽象名词之后从句在复合句中充当同位语成分，一般跟在一些抽象名词后面，对名词作进一步解释说明.3、that引导定语从句和同位语从句的区别:在定语从句中，that指人或物，作主语或宾语，作宾语时可以省略；在同位语从句中，that不作成分，没有实意，不能省略；eg:Thenewsthat

hetoldme

wasTomwasill.(定语从句)（对news进行限定修饰）Thenews

that

Tomwasillwastoldbyhim.(同位语从句)（对news消息的内容进行解释）

220万名词性从句

主语从句宾语从句表语从句

同位语从句置于谓语动词前，注意it作形式主语

置于vt./prep./部分adj.之后置于系动词之后置于抽象名词后注意与定语从句的区别语序为：陈述语序

七、注意Whether和if引导名词性从句的区别：（只用whether的情况）（1）引导主语/表语/同位语从句；（2）作介词宾语：（3）后接动词不定式；（4）后有ornot时；（5）作discuss/decide/advise/choose/consider的宾语;what和which在名词性从句中作定语的区别：Which+n.在一定范围内的“哪个···”What+n.无范围，泛指，“什么样的···”Idon’tknowwhatcolor

helikesbest.Idon’tknowwhichcolor

hewillchoosefromtheseclothes.八、做题步骤1、根据位置判断是什么从句；2、