Unit+2+Out+of+This+World+Grammar+and+usage+主语从句课件【知识精讲精研】高中英语牛津译林版（2020）选择性必修第三册

anoun,nounphraseorpronoun

representingthepersonorthing①thatperformstheactionoftheverb②aboutwhichsthisstated

③inapassivesentence,thatisaffectedbytheactionoftheverbIsatdown.Thehouse

isveryold.Thetreewasblowndowninthestorm.LeadinUnderlinethesubjectsofthefollowingsentences.1.Davidarrivedlastnight.2.HowcanweimproveourEnglish?3.Lookingupallthenewwordsinthedictionarytookhimalotoftime.4.Totranslatethisidealintorealityneedshardwork.5.Whathashappenedprovesthatourpolicyisright.6.HowweimproveEnglishisanimportantquestion.1.Whatdothesubjectsofthelasttwosentenceshaveincommon?2.Whatisthedifferenceinwordorderbetweenthesecondandthelast?Subjectclauses(主语从句)在复合句中，如作主语的是一个从句，该从句被称为主语从句。主语从句必须用陈述语序。DefinitionDoyouknowwhattheyare?FAST(Five-hundred-meterApertureSphericalTelescope)500米口径球面射电望远镜，也被称为“中国天眼”GalileotelescopeExploringtherulesBelowisanewspaperfeaturearticleontheuseoftelescopestoexplorespace.Findthesentenceswithsubjectclauses.()()()()1.ThatHubbleisbasedinspaceallowsittoseefurtherthanground-basedtelescopes,…2.Whether

lifeonotherplanetsdoesexistisyettobeproved,butthesignsarepromising...3.Itisclear

thattelescopesarecrucialtoolsforspaceexplorationandthatdevelopingtherequiredtechnologywillhelpastronomersallovertheworldmakeexcitingdiscoveries.4.Howmuch

wewilllearnfromthetelescopesismerelylimitedbyourimagination.thatwhetherit从属连词：that，whether，if连接代词：what，which，who，whom，whose，whatever，whichever，whoever，whomever连接副词：when，where，why，how根据连接词的语法功能将其分为从属连词、连接代词和连接副词。主语从句的连接词Whatsentenceelementsdoconjunctionsserveas?连词充当什么句子成分？Aconjunctiondoesnotserveasanysentenceelement,butonlyservesasaconnection.连词不充当任何句子成分，只起连接作用。Whetherhewillcomeornotisnotknownyet.It'suncertainwhether/ifhe'llcomethisevening.1.that

2.whether/ifThatHubbleisbasedinspaceallowsittoseefurtherthanground-basedtelescopes.whether不做成分，表意思“是否”。从属连词:

that/whether/if

that

不充当句子成分，无语义，只起连接作用，不能省略。名词性从句的关联词及其用法如下：用法总结名词性从句的关联词及其用法如下：用法总结主语从句中用whether不用if的情况：1.主语从句位于句首时;

2.从句后有or或紧跟ornot时。1.__________he'llcomethiseveningisuncertain.2.It’suncertain_________he’llcomethisevening.3.__________she’scomingornotdoesn’tmattertoomuch.Whetherwhether/ifWhether宾语从句中

whether

和if

可互换,表语从句、同位语从句用whether不用if,条件状语从句用if不用whether.

Whatheisnotsureis_________youwillleave.

Hedoesn’tknow_____________youwillleave.

____youworkhard,youaresuretosucceed.

whether

whether/if

IfWhatsentenceelementsdopronounserveas?代词充当什么句子成分？Aconjunctiondoesnotserveasanysentenceelement,butonlyservesasaconnection.疑问代词在句子中可以作主语、宾语、定语、表语等。Whowillbesentthere

hasnotbeendecided.Whatyouneedismorepractice.Whoevercomesfirstwillgetafreebook.Whateverhedid

wasright.主语宾语主语宾语表语连接代词:

who、whoever、whom、whose、what、whatever、which、whichever连接代词通常在主语从句中充当成分Itdoesn'tmatterwhat

itturnsouttobe.Whichoneisthebestisnotclear.连接代词:

what、which、who、whoever、whom、whose、whatever、whicheverWhatsubjectsyouwillhavedependsonwhatdayoftheweekitis.what、which、whose兼有形容词特征，可以和名词连用，作定语。表意思“什么”（what）;有范围限制的“哪一个”（which）；有所属关系的“谁的”（whose）。Whicheverteamgainsthemostpointswins.

Whosesuggestionweshouldadaptdependsonwheater定语连接代词what(ever)which(ever)who(ever)whomwhose连接代词what(ever)(无论)什么主语、宾语、表语、定语which(ever)(无论)哪一个主语、宾语、定语who(ever)(无论)谁主语、宾语、表语whom谁宾语whose谁的定语Whentheywillcomehasn'tbeenmadepublic.Wherehehasgoneisaquestion.Whythereisgravityishardtounderstand.HowhecanearnalivinginBritainremainsabigproblem.时间状语地点状语原因状语方式状语连接副词:

when,why,where,howit作形式主语主语从句常用

it

作形式主语放句首,从句为真正的主语，放在句末，使句子更平衡。1.It+be+形容词

+that从句常用句型clear,obvious,necessary,possible,likely,...Itisclearthatthegirltoldalie.2.It+be+名词词组

+that从句apity,nowonder,ashame,agoodidea...It

isapitythathemissedsuchaninterestingfilm.3.It+be+过去分词

+that从句believed,said,reported,thought,suggested...Itissuggestedthatthelabbuilding(should)bebuiltnextyear.Itissaidthatheisthebeststudentintheclass.表示命令，建议，请求，坚持的从句中要用虚拟语气（ordered,suggested,required,advised)4.It+seem,happen,appear,occurto等不及物动词+that从句Itappearsthattheyhavemadethesamemistake.IthappenedthatIwasoutthatday.6.Whatweneed

______

morebooks.1.Whowonthematch

_____stillunknown.5.Whatshelacks

______

experience.2.Whatyousaid

______perfectlytrue.3.

Whenandwhyhewillleavethere_____unknown.4.Whatyousaidandwhatyoudid______allright.waswasiswereiswere谓语动词的数一个主语从句后的谓语动词一般用单数形式。多个主语从句后的谓语动词用复数形式。what引导的主语从句，谓语动词的数由后面的表语决定。依据“缺什么补什么”原则确定正确的连词。所谓“缺什么补什么”是指从句与连词之间的关系。如果句子中缺主语，指人用who，指物用what。如缺宾语，指人用whom，指物用what。如缺时间状语用when；地点状语用where。

原因状语用why；方式状语用how。如缺定语用what,whose或which。如什么都不缺用that，Whether(表“是否”)。做题原则Ⅰ.单句填空1.________isstrangethatthemanshouldhavestucktohissillyideas.2.Itisapity______wewon'tbeabletogotothesouthtospendoursummervacation.3.

_________causedtheaccidentisstillamystery.4.

_________issaidthathehasgonetoShanghai.(=HeissaidtohavegonetoShanghai.)5.Itisknowntoall_______

gunpowderwasfirstinventedbytheChinese.ItthatWhatItthatApplyingtherules6.__________thefactorywillemploymorenewworkersistrue.7.__________thewitnesssaidwastrue.8.Everyyear,________makesthemostbeautifulkitewillwinaprizeintheKiteFestival.9.________theboydistractsfrequentlyinclassiswhathisteacherwantstoknow.10._________thedelayedflightwilltakeoffdependsmuchontheweather.11._________shelefthimmadehimheart-broken.12._________hewillcomeornotisnotknownyet.ThatWhatwhoeverWhyWhenThatwhether1.Lighttravelsfasterthansoundiscommonknowledge.2.Ifshe’scomingornotdoesn’tmattermuch.3.Thattheprofessorsaidisofgreatimportance.Thatthat虽无词义但引导主语从句位于句首时不能省略。Whetherif,whether都可表示“是否”,但if不能引导位于主句之前的主语从句,它可以引导位于主句之后带有形式主语it的主语从句。主语从句常见错误Whatthat

引导主语从句时无词义。Whattheprofessorsaid

表示“教授所说的”。4.Wherewillthetreesbeplantedhasnotbeendecided.5.Nomatterwhobreakstherulewillbepunished.6.Whenandwherethemeetingwillbeheldstillremainaquestion.将will置于trees之后。主语从句要用陈述句语序。Whoever引导让步状语从句时二者可互换，但引导名词性从句时只能用whoever。remains主语从句表示单一概念时，谓语要用单数形式。1.无论谁最后离开房间，都应该把灯关掉。

__________________________oughttoturnoffthelights.2.他昨天为什么来这里是个秘密。

_________________________isasecret.3.我们不知道杰克什么时候能完成这本书的翻译。

_____________________________________isunknowntous.4.飞机何时起飞还没有宣布。

_______________________whentheplaneistotakeoff.5.很遗憾你不能参加我的生日聚会。

_____________youcan'tattendmybirthdayparty.WhoeverleavestheroomlastWhyhecamehereyesterdayWhenJackwillfinishtranslatingthebookIthasnotbeenannouncedItisapitythatTranslate主语从句在写作中的运用part5使用itis...句式

众所周知 公认事实是... 很可能......很荣幸....不可否认It'swellknownthat... It'swellacknowledgedthat...It'safactthat... It'slikelythat...It'sanhonorthat... Itisnodenyingthat...使用what...句式

你需要知道的是

你需要注意的是

我将要告诉你的是

我在课堂上所学到的知识

令我印象深刻的是

令我激动的是

whatyouneedtoknow whatyoushouldpayattentiontowhatI'mgoingtotellyou whatIlearnedinclass whatimpressedmemostwhat'sreallyexcitingClassification（词组分类）描述大家都知道的事情It’sknowntousallthat/WhatweallknowisthatItisacknowledgedthatItisafactthatItisnodenyingthatClassification（词组分类）描述可能的事情It'sverylikelythat告知某人要做的/注意的事情whatyouneedtoknowisthatwhatyoushouldpayattentiontoisthatwhatI'mgoingtotellyouisthatClassification（词组分类）某人的收获whatIlearnedinclassisthat

描述活动带来的感受whatimpressedmemostwasthatWhatwasreallyexcitingwasthat