高中英语 主语从句

SubjectClauses

主语从句1.基本结构/连接词/2.形式主语句型3.主语从句的主谓一致4.主语从句的虚拟语气主语从句:就是在复合句中充当主语的名词性从句。连接词：that,whether连接代词：who,whomWhose,what,which连接副词：when,whywhere,how＋陈述句＋谓语＋其他1)Thatshelefthim

hurtshimsomuch.*她离开了他这事让他很受伤。2)Whetheritwillraintomorrow

isnoteasytosay*明天是否会下雨很难说。3)

Whatweneedismorepractice.我们所需要的就是更多的练习。4)Whenwewillbeginthemeeting

isunderdiscussion.*我们将何时开始会议还在讨论当中。1.基本结构/连接词/2.主语从句：从句在句中充当主语成分1).Thathewillsucceediscertain.2)Whetherhewillgothereisnotknown.3)Whathesaidisnottrue.4)Wherehehidthemoneyistobefoundout.5)It’scertainthat

we’llvisittheGreatWall.6)

Howwecanhelpthetwins

willbediscussedatthemeeting.7)Whenthey’llstarttheproject

hasnotbeendecidedyet.*______________________________(他是否要来)isnotyetknown.*_____________________________(他想告诉我们什么)isnotclear.*___________________________(谁会赢得这场比赛)isstillunknown.*_______________________________(你错过了这次机会)isapity.=Itis___________________________________.Exercise1:WhetherhewillcomeornotWhathewantstotellusWhowillwinthematchThat

youmissedthechanceapitythat

youmissedthechance

为了避免主语冗长,句子头重脚轻,经常用__作形式主语,主语从句放在后面作真正的主语.例:1.Thattheearthisroundisknowntoall.--由连词whether和if,连接代词what,who,which

和连接副词when,where,why,how等引导.也常常后置:Itisknowntoallthattheearthisround.it2.形式主语句型that/whether/wh-引导的主语从句+基本结构：it+be+表语不及物动词be+done这样就构成了下面一些常用句型:

1)Itis+n.+从句

Itisapity/shamethat...

Itisasurprisethat…

Itisafactthat…

Itiscommonknowledgethat…

It’snowonderthat…

It’sacommonsaying….*_______________(很遗憾)welostthematch.*______________(这是事实)hecheatedintheexam.ItisapitythatItisafactthat遗憾的是……令人惊奇的是……是事实…是常识并不奇怪/难怪…（俗话说）2)Itis+adj.+从句

It’scertainthat…

Itispossiblethat...

Itisunlikelythat...Itisobviousthat…Itisnecessary\important\natural\...that…*_________________(很可能)shewillcomebacktomorrow.*_________________(很明显)thismeasureiseffective.+(should)+do…ItispossiblethatItisobviousthat肯定…很可能……不可能……很明显…3)It+不及物动词+从句

Ithappenedthat...Itoccurredtomethat…*________________(刚好)Icameintotheofficeatthattime.*____________________(我突然想起)Iforgettosendtheletter.IthappenedthatItoccurredtomethat碰巧……我突然想起…4)It+be+过去分词+从句Itissaidthat...Itisknowntoallthat...Itisreportedthat...Itisbelievedthat...Itissuggestedthat+(should）do...Itmustbeadmittedthat…Itcannotbedeniedthat…

Itmustbepointedoutthat…

*___________________(据报道)20peoplewerekilledintheaccident.*______________________(建议)weshouldeatmorevegetableanddomoreexercise.ItisreportedthatItissuggestedthat据说……众所周知……据报道……据信……;人们相信……建议……必须承认……不可否认……需指出的是……注意：主语从句中，谓语动词一般用单数Whenwe’llleaveforBJ_____underdiscussionWhat引导的主语从句，可根据表语决定Whatheneeds_____thatbook.Whatheneeds_____somebooks.isareis3.主语从句的主谓一致

what引导名词性从句时在从句中充当句子成分,如________________,而that则不然,它在句子中只起_______作用。例如：1_____yousaidyesterdayisright.2_____shewillcometomypartyiscertain.3_____weshalldonextisnotclear.考点三：What与that引导主语从句

4_____________________isknowntoall.(地球是圆的)Thattheearthisround5.________________________isapity.(你错过了这次机会)ThatyoumissedthechancewhatwhatThat主语,宾语,表语连接___hemadeanimportantspeechatthemeetingwastrue.

A.ThatB.WhyC.WhatD.How2.___we’llgocampingtomorrowdependsontheweather.AIfBWhetherCThatDWhere3.___isknowntousallisthatAmericaisadevelopedcountry____theFirstWorld.Which;belongtob.As,belongedtoc.What;belongingtod.It;belongingtoPractice4.It’sknowntousall___aformofenergy.A.waterisB.thatwaterisC.iswater