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

Discoverusefulstructures-

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

makesushappy.Thathebecamethechampionmakesushappy.6Heconsideredhimselfafarmer.Yuan’sinnovationhashelpedtofeedmorepeople.UsingsaltylandinChinaforriceproductionwashislatestvision.Howthiscouldbedonewasachallengingquestionatthetime.WhatconcernedYuanLongpingmostwasthatfarmersoftenhadpoorharvests.Itwastruethathehadjustreturnedhishomeland.Findthesubjectofthefollowingsentences找主語(yǔ)Linking-words主語(yǔ)從句的連接詞028ThatYuanLongpingcaredlittleforcelebrityormoneywastrue.Whetheritwaspossibletodevelopthehybridricewasindebate.Whowillsolvethesoilproblemisunknown.Whichoneisthebesttoexpandoutputisnotclear.WhenYuanwouldretiretoalifeofleisurewasnevermentioned.Wherethehybridricecanbeplantedisaquestion.WhyYuandevelopedseawaterricewastofeedmorepeople.Findthelinkingwordsofsubject-clause.找出主語(yǔ)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(wú)）含義，

（充當(dāng)/不充當(dāng)）句子成分，

（可/不可）省略。Whether

(充當(dāng)/不充當(dāng)）句子成分；意思是“

”。當(dāng)主語(yǔ)從句在句首時(shí)，whether一般

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

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

”、無(wú)論誰(shuí)“

”什么“

”無(wú)論什么“

”、誰(shuí)的“

”、哪一個(gè)“

”；在句中可以充當(dāng)

、

、表語(yǔ)、

。whowhoeverwhatwhateverwhosewhich主語(yǔ)賓語(yǔ)定語(yǔ)11When/how/why/whereWhenwewillleavehasn'tbeendecided.Howshekeepshealthyisasecret.Whyhecriesisnotclear.Wherethemeetingwillbeheldisnotknown.Conclusion3:引導(dǎo)主語(yǔ)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(shí)候“

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

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

引導(dǎo),主語(yǔ)從句后置時(shí),才可以用if引導(dǎo)。13It作形式主語(yǔ)(1)It+be+形容詞（obvious,true,surprising,wonderful,possible,likely,certain)+that從句(2)It+be+過(guò)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(dòng)詞/動(dòng)詞短語(yǔ)(seem,appear,happen,matter,turnout,occurto等)+that從句14It作形式主語(yǔ)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(yǔ)氣的主語(yǔ)從句:15課文原句回顧1.However,_____concernedhimmostwas_____farmersoftenhadpoorharvestsandsometimesevenhadaseriousshortageoffoodtoeat.2._____thiscouldbedonewasachallengingquestionatthetime.3.However,________itwaspossibletodevelopahybridofself-pollinatingplantssuchasricewasamatterofgreatdebate.4.______impressespeoplemostaboutYuanLongpingishisongoingabilitytofulfilhisdreams.whatthatHowwhetherWhat主語(yǔ)從句的引導(dǎo)詞TexthereTexthere類別連接詞說(shuō)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(wú)實(shí)義，whether表示“是否”。連接代詞who，what，which，whoever，whatever等在從句中作主語(yǔ)、賓語(yǔ)、表語(yǔ)、定語(yǔ)等成分。連接副詞when，where，how，why在從句中作時(shí)間、地點(diǎn)、方式、原因狀語(yǔ)等成分。Specialusage主語(yǔ)從句的幾點(diǎn)注意事項(xiàng)0318主語(yǔ)從句的語(yǔ)序1.HowmuchdidIpayfortheviolinisasecret.2.HowmuchIpaidfortheviolinisasecret.3.Itisn’tclearwhetherhewillcomeornot.4.Itisn’tclearwhetherwillhecomeornot.5.Wherewewillhaveapicnicshouldbediscussed.6.Wherewillwehaveapicnicshouldbediscussed.7.Howwegoforapicnicshouldbediscussed.8.Howdowegoforapicnicshouldbediscussed.√√××√√××Rule1:主語(yǔ)從句的從句部分要用______語(yǔ)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(yǔ)verb單個(gè)主從多個(gè)主從并列It作形式主語(yǔ)What引導(dǎo)主從單數(shù)復(fù)數(shù)單數(shù)表/賓語(yǔ)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(wú)實(shí)際意義作主語(yǔ)、賓語(yǔ)、表語(yǔ)什么;所…的21主語(yǔ)從句和強(qiáng)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(yǔ)從句強(qiáng)調(diào)句緊緊抓住強(qiáng)強(qiáng)強(qiáng)強(qiáng)強(qiáng)強(qiáng)強(qiáng)強(qiáng)強(qiáng)調(diào)句主語(yǔ)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(qiáng)調(diào)句，itis…that中間的部分為被強(qiáng)調(diào)的部分；句子結(jié)構(gòu)混亂不完整，則it為形式主語(yǔ)，真正的主語(yǔ)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(shí)；What=__________________________Whatever=____________________Who=_____________________________Whoever=_________________thething(s)that;什么;所…的anythingthat;任何事物theperson(s)who;誰(shuí)(含疑問(wèn)語(yǔ)氣)anyonewho;

任何人Exercises走近高考0424高考真題1(2016全國(guó)Ⅰ卷)假定你是李華，暑假想去一家外貿(mào)公司兼職，已寫(xiě)好申請(qǐng)書(shū)和個(gè)人簡(jiǎn)(resume)。給外教MSJenkins寫(xiě)信，請(qǐng)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