Unit5WorkingtheLandDiscoverUsefulStructures主語從句課件高中英語人教版選擇性

SubjectClausesUnit5

WorkingtheLandWhoisknownastheFatherofHybrid?YuanLongpingisknownastheFatherofHybrid?Whatishislifepursuit?Keepingallthepeopleawayfromhungerishislifepursuit.Whatimpressedpeoplemostabouthim?(para.5)Whatimpressedpeoplemostwashisongoingabilitytofulfilhisdreams.

如果一個從句在句子中擔當主語，那么這個從句就是主語從句。DefinitionofsubjectclauseCombinethetwosentencesintoone.Yuanhadrealisedhisdreamofseawaterrice.Itsurprisedthewholeworld.ThatYuanhadrealisedhisdreamofseawaterricesurprisedthewholeworld.Combinethetwosentencesintoone.Wasitpossibletodevelopahybridofself-pollinatingplants?Itwasamatterofgreatdebate.Whetheritwaspossibletodevelopahybridofself-pollinatingplantssuchasricewasamatterofgreatdebate.Combinethetwosentencesintoone.WhatconcernedYuanLongpingmost?farmersoftenhadpoorhavestsandsometimesevenhadaseriousshortageoffoodtoeat.Whatconcernedhimmostwasthatfarmersoftenhadpoorharvestsandsometimesevenhadaseriousshortageoffoodtoeat.

Combinethetwosentencesintoone.Howcouldfarmersboostyields?Itwasachallengingquestion.Howfarmerscouldboostyieldswasachallengingquestion.主語從句的引導詞例詞說明that在從句中均不作成分，只起連接作用；無實義whether在從句中均不作成分，只起連接作用,表示“是否”。連接代詞who,whom,what,which,whoever,whatever等在從句中作主語、賓語、表語、定語等名詞性成分。連接副詞when,where,how,why,whenever,wherever等在從句中作時間、地點、方式、原因狀語等副詞性成分。主語從句的本質：用三種句子--陳述句、一般疑問句、特殊疑問句，在另一個句子中做主語。三種引導詞：that,whether,和疑問詞（關系代詞+關系副詞）。Completethesentencesusingwhat,whether,where,when,

who,why,howorthat.1._____isneededforsuccessisyourhardwork.2._____wewillgotoBeijinghasbeenknowntoeveryone.3.____canjoininthesportmeetisdecidedbytheteacher.4.________itwillrainornotisnotclear.6.____theearthisasolidballisknowntousall.WhatThatWhoWhetherThatWhy思考2：

主語從句主謂一致問題1.Whetherthepatientwillbetaken

______unknown.2.Whathewantsmost_________stayingwithhisfamily.Whattheyneed_______masks(口罩).3.Whenandwherethepatientwillbetaken_____unknown.4.Whenthetaskcanbefinishedandwhetherhecanhavearest________unknown.主句的謂語動詞，大多數(shù)使用_______(單數(shù)？復數(shù)？)由兩個連接詞引導同一個主從，謂動使用____(單數(shù)？復數(shù)？)主語為and連接的兩個主從時，謂動使用____(單數(shù)？復數(shù)？)what在主從中做賓語時，謂動由______決定單復數(shù)(主語？表語？)單數(shù)單數(shù)復數(shù)表語isisareisare主語從句應使用_________語序。1.Wherewewillhaveapicnicshouldbediscussed.Wherewillwehaveapicnicshouldbediscussed.2.Howwegoforapicnicshouldbediscussed.Howdowegoforapicnicshouldbediscussed.Rule3陳述句√√××思考1：

主語從句的語序Thatallcountriesworktogetherisimportant.

思考3：

主語從句太長怎么辦？用一個

It

來解決問題！

Itisimportantthatallcountriesworktogether.

1.It+be+形容詞＋that從句Itisnecessary/important/obvious/...that…2.It+be+-ed分詞＋that從句Itisbelievedthat…人們相信…Itisknowntousallthat….眾所周知…Ithasbeendecidedthat……已經決定……3.It+be+名詞＋that從句4.It+不及物動詞＋that從句Itappears/seemsthat…似乎…Ithappensthat….碰巧…Itturnsoutthat……結果證明是……it作形式主語的四種句型5.ItVsb.that某人突然想起某事Itdawnedupon/onsb.that...Itoccurredtosb.that...Ithit/strucksb.that...主語從句句型Ex.onP90定義主語從句引導詞形式主語主謂一致總結

作用，位置

從屬連詞，連接代詞，連接副詞

單個主語從句-單數(shù)多個主語從句-復數(shù)

It＋be＋形容詞/名詞短語/過去分詞/不及物動詞＋that從句語序

陳述語序Practice(P53)1.______remainsanunansweredquestion.2.______isanimportanttopicforustoresearch.3.

______

isthatthesechemicalsmayevencausecancer.4.

______

thesevegetablescanevenbeplantedwithoutanysoilthroughthisnewtechnology.5.______isthereasonwhysomepeopleprefertoliveinthecountryratherthaninthecity.A.WhatworriesmanypeopleB.ThatthelifestyleisslowerandhealthierC.HowwecanfindasuitablesolutiontoproducesufficientfoodwhilekeepingtheenvironmentsafeD.Whenthesewheatfarmerswill

jointhispilotexperimentE.ItamazedallofusthatDCAEBReadthepassageandunderlineallthesubjectclauses.Theninpairs,discusswhetherthesentenceswithsubjectclausescanbeparaphrased.WhatqualitiesdoyouthinkmakeapersonlikeYuanLongpingsosuccessful?Workingroups.Haveadiscussionandprepareapresentation.Thefollowingpointsandexpressionsmayhelpyou.

Whatimpressesmemostisthat…

Whatmakeshim/heragreat…isthat…

Itisimportantthat…

Whether…dependson…

That…ishis/hermostimportantquality.1.________________ismorewater.(連接代詞what在從句中作need的賓語)我們需要的是更多的水。2._____________________________________________dependsonthetraffic.我們是否能按時到達那里由交通情況而定。3.______________________willtakeoffdependsmuchontheweather.延遲的航班什么時候起飛主要取決于天氣狀況。4.________________________________________________wasneverclear.誰都不清楚那個人為什么沒更早一點報告那起事故。5.______________________________________isstillunknown.這封信是誰寄的尚不清楚。WhatweneedWhetherwecanarrivethereontimeWhenthedelayedflightWhythemanhadn’treportedtheaccidentsoonerWhotheletterwasfrom1.(2020全國Ⅱ卷)It’sbeenreported__________76%employeesinsomewesterncountriesareusingemojisatwork.2.(2018全國卷Ⅲ)I’mnotsure________ismorefrightened,meorthefemalegorilla(大猩猩)thatsuddenlyappearsoutofnowhere.3.(2019全國Ⅰ卷)_______youneedisagreatteacherwholetsyoumakemistakes.4.(2020全國新高考I)Writeapoemabout________courage,determination,andstrengthhavehelpedyoufacechallengesinyourlife.5.(2020北京)SothenexttimeIseethatpersonIalsoseethenameonhisorherface,andthatis_________Ineverforgetaname.thatWhathowConsolidationwhowhy

Itwasreported______therewasanaccidentatthecornerofRomanStreetthismorning.Noonesaw______onearthhappenedthen.Acarranintoatruc