【公开课】Unit+5+Discover+useful+structures+课件人教版（2019）选择性必修第一册

Discoverusefulstructures-

SubjectclausesDesignedbyzhangshiyi2023/8/31Learningaims2TomastertestpointsforSubjectclause02TolearndifferentformsofSubjectclause.01Toknowhowtouseitinwriting03contents301Definition定义02Linking-words连接词03Specialusage注意事项04Exercises即时练习WhatisSubject-clause主语从句的定义01主语从句的定义：在句中充当主语的从句叫做主语从句,有时为了避免头重脚轻，常用it作形式主语。.HelloSummerHelloSummer5主语Hisjobisimportant.Whathedoesisimportant.主语Thenews

makesushappy.Thathebecamethechampionmakesushappy.6Heconsideredhimselfafarmer.Yuan’sinnovationhashelpedtofeedmorepeople.UsingsaltylandinChinaforriceproductionwashislatestvision.Howthiscouldbedonewasachallengingquestionatthetime.WhatconcernedYuanLongpingmostwasthatfarmersoftenhadpoorharvests.Itwastruethathehadjustreturnedhishomeland.Findthesubjectofthefollowingsentences找主语Linking-words主语从句的连接词028ThatYuanLongpingcaredlittleforcelebrityormoneywastrue.Whetheritwaspossibletodevelopthehybridricewasindebate.Whowillsolvethesoilproblemisunknown.Whichoneisthebesttoexpandoutputisnotclear.WhenYuanwouldretiretoalifeofleisurewasnevermentioned.Wherethehybridricecanbeplantedisaquestion.WhyYuandevelopedseawaterricewastofeedmorepeople.Findthelinkingwordsofsubject-clause.找出主语从句有哪些不同的连接词9That/whether1.That

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

（有/无）含义，

（充当/不充当）句子成分，

（可/不可）省略。Whether

(充当/不充当）句子成分；意思是“

”。当主语从句在句首时，whether一般

（能/不能）被if替换。无不充当不可不充当是否不能10What/who/which/whoever1.Whattherefugeeshavegonethroughisbeyondourimagination.2.WhowouldgettheopportunitytotraveltoBeijingisunknown.3.Which

studentwouldbethevolunteerisnotclear.4.Whoeverbreaksthelawwillbepunished.Conclusion2:引导主语从句的连接代词，主要有谁“

”、无论谁“

”什么“

”无论什么“

”、谁的“

”、哪一个“

”；在句中可以充当

、

、表语、

。whowhoeverwhatwhateverwhosewhich主语宾语定语11When/how/why/whereWhenwewillleavehasn'tbeendecided.Howshekeepshealthyisasecret.Whyhecriesisnotclear.Wherethemeetingwillbeheldisnotknown.Conclusion3:引导主语从句的连接副词，在句中做“

”。主要包括：怎么样“

”，为什么“

”在/去什么地方“

”，什么时候“

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

=Itisn'tclearwhether/ifhe'llcomehere.注意：主语从句位于句首时,不能用if

引导,主语从句后置时,才可以用if引导。13It作形式主语(1)It+be+形容词（obvious,true,surprising,wonderful,possible,likely,certain)+that从句(2)It+be+过去分词(said,reported,thought,expected,decided,announced,

suggested等)+that从句(3)It+be+名词词组(apity,ashame,goodnews,anhonor,

nowonder等)+that从句(4)It+动词/动词短语(seem,appear,happen,matter,turnout,occurto等)+that从句14It作形式主语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接虚拟语气的主语从句:15课文原句回顾1.However,_____concernedhimmostwas_____farmersoftenhadpoorharvestsandsometimesevenhadaseriousshortageoffoodtoeat.2._____thiscouldbedonewasachallengingquestionatthetime.3.However,________itwaspossibletodevelopahybridofself-pollinatingplantssuchasricewasamatterofgreatdebate.4.______impressespeoplemostaboutYuanLongpingishisongoingabilitytofulfilhisdreams.whatthatHowwhetherWhat主语从句的引导词TexthereTexthere类别连接词说明从属连词that，whether两者在从句中均不作成分，只起连接作用；that无实义，whether表示“是否”。连接代词who，what，which，whoever，whatever等在从句中作主语、宾语、表语、定语等成分。连接副词when，where，how，why在从句中作时间、地点、方式、原因状语等成分。Specialusage主语从句的几点注意事项0318主语从句的语序1.HowmuchdidIpayfortheviolinisasecret.2.HowmuchIpaidfortheviolinisasecret.3.Itisn’tclearwhetherhewillcomeornot.4.Itisn’tclearwhetherwillhecomeornot.5.Wherewewillhaveapicnicshouldbediscussed.6.Wherewillwehaveapicnicshouldbediscussed.7.Howwegoforapicnicshouldbediscussed.8.Howdowegoforapicnicshouldbediscussed.√√××√√××Rule1:主语从句的从句部分要用______语序

18陈述句19主谓一致1.WhereLiBai,agreatChinesepoet,wasborn_____(be)knowntopublic,butsomewon’tacceptit.(2015江苏卷)2.Whenthepersonwasmurderedandwhyhewasmurdered_____(be)stillunknownnow..3.It_____(be)stillnotexactlysuretoscientistshowgenesinfluenceaging,buttheybelievethattheydo.(2016四川卷)4.Whatheneeds_____(be)somebooks.5.Ifirsthavetoremovealltherottenparts,andsometimes,whatisleft____(be)notenoughformydesign.(2020河南天一大联考)isareareisisRule2:forms+主句谓语verb单个主从多个主从并列It作形式主语What引导主从单数复数单数表/宾语决定20What/that区分1._____shebecameanartistmayhavebeenduetoherfather’sinfluence.2.Thetravelerlosthiswayinthewoods,and____madethingsworsewasthatitwasgettingdark.(2020山东青岛联考)3._____Iwasconcernedaboutwaswhetherhewouldreachthedestinationontime.4.______lifewaslikeforslavesintheancientworldisdifficulttoimagine.(2014山东卷)5.Therefore,itisadvisable_____youshouldvalueandtreatthemwithcare.(2020福建龙岩五校联考)ThatwhatWhatWhatthatRules3elementsmeaningthatwhat不作成分无实际意义作主语、宾语、表语什么;所…的21主语从句和强调句的区分1.It

is

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

whenwewerereturninghomethatIrealizedwhatagoodfeelingitwastohavehelpedsomeoneintrouble.(2015湖南卷)4.Itisoftenthecasethatanythingispossibleforthosewhohangontohope.(2016江苏卷)主语从句强调句紧紧抓住强强强强强强强强强调句主语从句Rule4:判断方法：去掉Itis/was…that之后，若句子结构仍然完整，则为强调句，itis…that中间的部分为被强调的部分；句子结构混乱不完整，则it为形式主语，真正的主语是由that引导的从句。22Who/whoever区分1._______willberesponsiblefortheaccidentisstillunderinvestigation.2.Everyyear,________makesthemostbeautifulkitewillwinaprizeinthekitefestival.(2017北京卷)3._______impressesmeabouthispaintingisthecolorsheuses.(2014天津卷)4.——It’smytreattoday.Isthereanythingparticularyouwouldliketohave?——________youchooseisfinewithme.(2019天津七校联考)WhoWhatwhoeverWhateverRule5:引导名词性从句时；What=__________________________Whatever=____________________Who=_____________________________Whoever=_________________thething(s)that;什么;所…的anythingthat;任何事物theperson(s)who;谁(含疑问语气)anyonewho;

任何人Exercises走近高考0424高考真题1(2016全国Ⅰ卷)假定你是李华，暑假想去一家外贸公司兼职，已写好申请书和个人简(resume)。给外教MSJenkins写信，请她帮你修改所附材料的文字和格式(format).翻译：我不太确定的是所附材料的文字和格式.WhatI’mnotsureabout

arethewordsandfo