【公開課】Unit+5+Discover+useful+structures+課件人教版（2019）選擇性必修第一冊

Discoverusefulstructures-

SubjectclausesDesignedbyzhangshiyi2023/8/31Learningaims2TomastertestpointsforSubjectclause02TolearndifferentformsofSubjectclause.01Toknowhowtouseitinwriting03contents301Definition定義02Linking-words連接詞03Specialusage注意事項04Exercises即時練習(xí)WhatisSubject-clause主語從句的定義01主語從句的定義：在句中充當主語的從句叫做主語從句,有時為了避免頭重腳輕，常用it作形式主語。.HelloSummerHelloSummer5主語Hisjobisimportant.Whathedoesisimportant.主語Thenews

makesushappy.Thathebecamethechampionmakesushappy.6Heconsideredhimselfafarmer.Yuan’sinnovationhashelpedtofeedmorepeople.UsingsaltylandinChinaforriceproductionwashislatestvision.Howthiscouldbedonewasachallengingquestionatthetime.WhatconcernedYuanLongpingmostwasthatfarmersoftenhadpoorharvests.Itwastruethathehadjustreturnedhishomeland.Findthesubjectofthefollowingsentences找主語Linking-words主語從句的連接詞028ThatYuanLongpingcaredlittleforcelebrityormoneywastrue.Whetheritwaspossibletodevelopthehybridricewasindebate.Whowillsolvethesoilproblemisunknown.Whichoneisthebesttoexpandoutputisnotclear.WhenYuanwouldretiretoalifeofleisurewasnevermentioned.Wherethehybridricecanbeplantedisaquestion.WhyYuandevelopedseawaterricewastofeedmorepeople.Findthelinkingwordsofsubject-clause.找出主語從句有哪些不同的連接詞9That/whether1.That

IloveEnglishisreal.2.Thatyoucantravelaroundtheworldisamazing.3.Whetherhewillcomeisuncertain.4.Whethertheboycouldwinmademecurious.Conclusion1:that在句中

（有/無）含義，

（充當/不充當）句子成分，

（可/不可）省略。Whether

(充當/不充當）句子成分；意思是“

”。當主語從句在句首時，whether一般

（能/不能）被if替換。無不充當不可不充當是否不能10What/who/which/whoever1.Whattherefugeeshavegonethroughisbeyondourimagination.2.WhowouldgettheopportunitytotraveltoBeijingisunknown.3.Which

studentwouldbethevolunteerisnotclear.4.Whoeverbreaksthelawwillbepunished.Conclusion2:引導(dǎo)主語從句的連接代詞，主要有誰“

”、無論誰“

”什么“

”無論什么“

”、誰的“

”、哪一個“

”；在句中可以充當

、

、表語、

。whowhoeverwhatwhateverwhosewhich主語賓語定語11When/how/why/whereWhenwewillleavehasn'tbeendecided.Howshekeepshealthyisasecret.Whyhecriesisnotclear.Wherethemeetingwillbeheldisnotknown.Conclusion3:引導(dǎo)主語從句的連接副詞，在句中做“

”。主要包括：怎么樣“

”，為什么“

”在/去什么地方“

”，什么時候“

”。狀語howwhywherewhen12It作形式主語1.Thattheearthmovesaroundthesuniswellknown.=Itiswellknownthattheearthmovesaroundthesun.2.Thatshehasmadesuchamistakeisapity.=Itisapitythatshehasmadesuchamistake.3.Whetherhe'llcomehereisn'tclear.

=Itisn'tclearwhether/ifhe'llcomehere.注意：主語從句位于句首時,不能用if

引導(dǎo),主語從句后置時,才可以用if引導(dǎo)。13It作形式主語(1)It+be+形容詞（obvious,true,surprising,wonderful,possible,likely,certain)+that從句(2)It+be+過去分詞(said,reported,thought,expected,decided,announced,

suggested等)+that從句(3)It+be+名詞詞組(apity,ashame,goodnews,anhonor,

nowonder等)+that從句(4)It+動詞/動詞短語(seem,appear,happen,matter,turnout,occurto等)+that從句14It作形式主語1.Itisnecessarythatwe(should)

havebreakfast.2.Itwassuggested

thatwe

(should)putoffthemeeting.◆Itisnecessary/important/strange/natural等+that(should)

do◆Itissuggested/requested/desired/ordered等+that

(should)do接虛擬語氣的主語從句:15課文原句回顧1.However,_____concernedhimmostwas_____farmersoftenhadpoorharvestsandsometimesevenhadaseriousshortageoffoodtoeat.2._____thiscouldbedonewasachallengingquestionatthetime.3.However,________itwaspossibletodevelopahybridofself-pollinatingplantssuchasricewasamatterofgreatdebate.4.______impressespeoplemostaboutYuanLongpingishisongoingabilitytofulfilhisdreams.whatthatHowwhetherWhat主語從句的引導(dǎo)詞TexthereTexthere類別連接詞說明從屬連詞that，whether兩者在從句中均不作成分，只起連接作用；that無實義，whether表示“是否”。連接代詞who，what，which，whoever，whatever等在從句中作主語、賓語、表語、定語等成分。連接副詞when，where，how，why在從句中作時間、地點、方式、原因狀語等成分。Specialusage主語從句的幾點注意事項0318主語從句的語序1.HowmuchdidIpayfortheviolinisasecret.2.HowmuchIpaidfortheviolinisasecret.3.Itisn’tclearwhetherhewillcomeornot.4.Itisn’tclearwhetherwillhecomeornot.5.Wherewewillhaveapicnicshouldbediscussed.6.Wherewillwehaveapicnicshouldbediscussed.7.Howwegoforapicnicshouldbediscussed.8.Howdowegoforapicnicshouldbediscussed.√√××√√××Rule1:主語從句的從句部分要用______語序

18陳述句19主謂一致1.WhereLiBai,agreatChinesepoet,wasborn_____(be)knowntopublic,butsomewon’tacceptit.(2015江蘇卷)2.Whenthepersonwasmurderedandwhyhewasmurdered_____(be)stillunknownnow..3.It_____(be)stillnotexactlysuretoscientistshowgenesinfluenceaging,buttheybelievethattheydo.(2016四川卷)4.Whatheneeds_____(be)somebooks.5.Ifirsthavetoremovealltherottenparts,andsometimes,whatisleft____(be)notenoughformydesign.(2020河南天一大聯(lián)考)isareareisisRule2:forms+主句謂語verb單個主從多個主從并列It作形式主語What引導(dǎo)主從單數(shù)復(fù)數(shù)單數(shù)表/賓語決定20What/that區(qū)分1._____shebecameanartistmayhavebeenduetoherfather’sinfluence.2.Thetravelerlosthiswayinthewoods,and____madethingsworsewasthatitwasgettingdark.(2020山東青島聯(lián)考)3._____Iwasconcernedaboutwaswhetherhewouldreachthedestinationontime.4.______lifewaslikeforslavesintheancientworldisdifficulttoimagine.(2014山東卷)5.Therefore,itisadvisable_____youshouldvalueandtreatthemwithcare.(2020福建龍巖五校聯(lián)考)ThatwhatWhatWhatthatRules3elementsmeaningthatwhat不作成分無實際意義作主語、賓語、表語什么;所…的21主語從句和強調(diào)句的區(qū)分1.It

is

believedthatbeautycomesfromwithin.(2015北京卷)2.Itwasthetimesthatproducetheirheroes.3.Itwas

whenwewerereturninghomethatIrealizedwhatagoodfeelingitwastohavehelpedsomeoneintrouble.(2015湖南卷)4.Itisoftenthecasethatanythingispossibleforthosewhohangontohope.(2016江蘇卷)主語從句強調(diào)句緊緊抓住強強強強強強強強強調(diào)句主語從句Rule4:判斷方法：去掉Itis/was…that之后，若句子結(jié)構(gòu)仍然完整，則為強調(diào)句，itis…that中間的部分為被強調(diào)的部分；句子結(jié)構(gòu)混亂不完整，則it為形式主語，真正的主語是由that引導(dǎo)的從句。22Who/whoever區(qū)分1._______willberesponsiblefortheaccidentisstillunderinvestigation.2.Everyyear,________makesthemostbeautifulkitewillwinaprizeinthekitefestival.(2017北京卷)3._______impressesmeabouthispaintingisthecolorsheuses.(2014天津卷)4.——It’smytreattoday.Isthereanythingparticularyouwouldliketohave?——________youchooseisfinewithme.(2019天津七校聯(lián)考)WhoWhatwhoeverWhateverRule5:引導(dǎo)名詞性從句時；What=__________________________Whatever=____________________Who=_____________________________Whoever=_________________thething(s)that;什么;所…的anythingthat;任何事物theperson(s)who;誰(含疑問語氣)anyonewho;

任何人Exercises走近高考0424高考真題1(2016全國Ⅰ卷)假定你是李華，暑假想去一家外貿(mào)公司兼職，已寫好申請書和個人簡(resume)。給外教MSJenkins寫信，請她幫你修改所附材料的文字和格式(format).翻譯：我不太確定的是所附材料的文字和格式.WhatI’mnotsureabout

arethewordsandfo