Unit5WorkingtheLandDiscoverUsefulStructures主语从句课件高中英语人教版选择性

SubjectClausesUnit5

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

如果一个从句在句子中担当主语，那么这个从句就是主语从句。DefinitionofsubjectclauseCombinethetwosentencesintoone.Yuanhadrealisedhisdreamofseawaterrice.Itsurprisedthewholeworld.ThatYuanhadrealisedhisdreamofseawaterricesurprisedthewholeworld.Combinethetwosentencesintoone.Wasitpossibletodevelopahybridofself-pollinatingplants?Itwasamatterofgreatdebate.Whetheritwaspossibletodevelopahybridofself-pollinatingplantssuchasricewasamatterofgreatdebate.Combinethetwosentencesintoone.WhatconcernedYuanLongpingmost?farmersoftenhadpoorhavestsandsometimesevenhadaseriousshortageoffoodtoeat.Whatconcernedhimmostwasthatfarmersoftenhadpoorharvestsandsometimesevenhadaseriousshortageoffoodtoeat.

Combinethetwosentencesintoone.Howcouldfarmersboostyields?Itwasachallengingquestion.Howfarmerscouldboostyieldswasachallengingquestion.主语从句的引导词例词说明that在从句中均不作成分，只起连接作用；无实义whether在从句中均不作成分，只起连接作用,表示“是否”。连接代词who,whom,what,which,whoever,whatever等在从句中作主语、宾语、表语、定语等名词性成分。连接副词when,where,how,why,whenever,wherever等在从句中作时间、地点、方式、原因状语等副词性成分。主语从句的本质：用三种句子--陈述句、一般疑问句、特殊疑问句，在另一个句子中做主语。三种引导词：that,whether,和疑问词（关系代词+关系副词）。Completethesentencesusingwhat,whether,where,when,

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

主语从句主谓一致问题1.Whetherthepatientwillbetaken

______unknown.2.Whathewantsmost_________stayingwithhisfamily.Whattheyneed_______masks(口罩).3.Whenandwherethepatientwillbetaken_____unknown.4.Whenthetaskcanbefinishedandwhetherhecanhavearest________unknown.主句的谓语动词，大多数使用_______(单数？复数？)由两个连接词引导同一个主从，谓动使用____(单数？复数？)主语为and连接的两个主从时，谓动使用____(单数？复数？)what在主从中做宾语时，谓动由______决定单复数(主语？表语？)单数单数复数表语isisareisare主语从句应使用_________语序。1.Wherewewillhaveapicnicshouldbediscussed.Wherewillwehaveapicnicshouldbediscussed.2.Howwegoforapicnicshouldbediscussed.Howdowegoforapicnicshouldbediscussed.Rule3陈述句√√××思考1：

主语从句的语序Thatallcountriesworktogetherisimportant.

思考3：

主语从句太长怎么办？用一个

It

来解决问题！

Itisimportantthatallcountriesworktogether.

1.It+be+形容词＋that从句Itisnecessary/important/obvious/...that…2.It+be+-ed分词＋that从句Itisbelievedthat…人们相信…Itisknowntousallthat….众所周知…Ithasbeendecidedthat……已经决定……3.It+be+名词＋that从句4.It+不及物动词＋that从句Itappears/seemsthat…似乎…Ithappensthat….碰巧…Itturnsoutthat……结果证明是……it作形式主语的四种句型5.ItVsb.that某人突然想起某事Itdawnedupon/onsb.that...Itoccurredtosb.that...Ithit/strucksb.that...主语从句句型Ex.onP90定义主语从句引导词形式主语主谓一致总结

作用，位置

从属连词，连接代词，连接副词

单个主语从句-单数多个主语从句-复数

It＋be＋形容词/名词短语/过去分词/不及物动词＋that从句语序

陈述语序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.(连接代词what在从句中作need的宾语)我们需要的是更多的水。2._____________________________________________dependsonthetraffic.我们是否能按时到达那里由交通情况而定。3.______________________willtakeoffdependsmuchontheweather.延迟的航班什么时候起飞主要取决于天气状况。4.________________________________________________wasneverclear.谁都不清楚那个人为什么没更早一点报告那起事故。5.______________________________________isstillunknown.这封信是谁寄的尚不清楚。WhatweneedWhetherwecanarrivethereontimeWhenthedelayedflightWhythemanhadn’treportedtheaccidentsoonerWhotheletterwasfrom1.(2020全国Ⅱ卷)It’sbeenreported__________76%employeesinsomewesterncountriesareusingemojisatwork.2.(2018全国卷Ⅲ)I’mnotsure________ismorefrightened,meorthefemalegorilla(大猩猩)thatsuddenlyappearsoutofnowhere.3.(2019全国Ⅰ卷)_______youneedisagreatteacherwholetsyoumakemistakes.4.(2020全国新高考I)Writeapoemabout________courage,determination,andstrengthhavehelpedyoufacechallengesinyourlife.5.(2020北京)SothenexttimeIseethatpersonIalsoseethenameonhisorherface,andthatis_________Ineverforgetaname.thatWhathowConsolidationwhowhy

Itwasreported______therewasanaccidentatthecornerofRomanStreetthismorning.Noonesaw______onearthhappenedthen.Acarranintoatruc