Unit 5 Working the land 主语从句课件 【知识建构+高效助教】高中英语人教版（2019）选择性必修第一册

Discoveringusefulstructuresunit5recognizeandsummarizethefunctionandtherulesofthesubject-clause.summarizethesyntacticfunctionofthesubjectclauseconnectiveandtheusageofitastheformalsubject.beabletousethesubjectclausecorrectlyinwrittenandoralexpression.Learning

objectivesBytheendofthisclass,youwillbeableto:DiscoveringtherulesPart1WhatYuanLongpingreallycaredabout

wasnotmoneyorcelebrity.Translatethesentence.袁隆平真正关心的不是金钱或名人。ThatYuanLongpinghadrealizedhisdreamofseawaterricesurprisedthewholeworld.Translatethesentence.袁隆平实现了他“海水大米”的梦想震惊了全世界。Whatconcernedhimmostwasthatfamersoftenhadpoorharvestsandsometimesevenhadaseriousshortageoffoodtoeat.Translatethesentence.最让他担心的是农民们常常收成不好，有时甚至严重缺乏食物。Whetheritwaspossibletodevelopahybridofself-pollinatingplantssuchasricewasmatterofgreatdebate.Translatethesentence.是否有可能培育出一种像水稻这样的自花授粉植物的杂交种是一个非常有争议的问题。Howthiscouldbedonewaschallengingquestionatthetime.Translatethesentence.如何做到这一点在当时是一个具有挑战性的问题。Itisestimatedthatabout60percentofdomesticriceconsumptioninChinaiscomprisedofcropsgeneratedfromYuan’shybridstrains.Translatethesentence.据估计，中国国内约60%的大米消费是由袁的杂交品种生产的。Summary主语从句连接词从属连词：不作成分连接副词：作状语It作形式主语含义在句子中充当主语的句子就是主语从句连接代词：作

主，宾，表，定语

从属连词(不作成分）连接代词（作主,宾,表,定语）连接副词（作状语）what,who,whom,which,

whose,wh+everhow,when,where,whythat(无意义),whether/if主语从句的连接词分类StudyingtherulesPart2引导主语从句，只起引导作用，在主语从句中不充当任何成分。1.Thatpricewillgoupiscertain.2.Whetherwegobytrainorbyboatmakesnodifference.3.Itdoesn’tmatterwhether/ifhewillcomeornot.从属连词：that、whether、ifthat无意义，不能省略。whether，可置于句首句末，if不可置于句首，意为“是否”，不可省略。【即时演练】Itdoesn’tmatter_________hewillcomeornot.________we’llgocampingtomorrow dependsontheweather.Itwasdoubtful___________TomreallysawSharon.________TomreallysawSharonwasdoubtful.补全句子：_______________________madeusveryhappy.她能来帮助我们使我们很高兴。_________________________doesn’tmattertoomuch.她来不来都没关系。whether/ifwhetherwhether/ifWhetherThatshecouldcometohelpusWhethersheiscomingornot在句中不仅起连接词的作用，并充当句中的主语、宾语、表语或定语。连接代词:who、whom、whose、what、which、whenever、whatever、whoever、whichever例：1.Whatwedon'thavealwaysattractsus.

2.Whowillbethepresidentisstillunknown.3.Whenever

youcomeiswelcomed.

在主语从句中作主语在主语从句中作宾语whenever在主语从句中作状语我最喜欢的是你的发型。_____Ilikemostisyourhairstyle.What【即时演练】1、谁将赢得比赛还不知道。Whowillwinthematchisnotsure.2、我需要的就是休息。WhatIneedisrest.3、_______youlackisself-confidence.What4、

_______moreandmorestudentsgotouniversitiesistrue.Thatwhat和that如何选用？引导名词性从句时不仅起连接词的作用，也在句中作状语。例：1.Whenwe’llstarttomorrowwillbetoldsoon.

2.Whyhecamehereisnotknown.3.Howthishappenedisnotcleartoanyone.连接副词：when、where、how、whywhen作时间状语why作原因状语how作方式状语Whowhether/if

Whenthat【用适当的连接词填空。】

(1)_____willbesenttocarryoutthetaskhasn’tbeensettled.(2)Itdoesn’tmatter__________itturnsouttobeagoodideaorabadidea.(3)_____Johnwillarriveisunknown.(4)It’spossible______hehasn’treceivedtheletter.02主语从句中it作形式主语的结构为了避免主语冗长，句子头重脚轻。经常用it作形式主语。例：Thattheearthisroundisknowntoall.=Itisknowntoallthattheearthisround.it作形式主语clear,obvious,likely,probable,true…句型一形容词It+be+形容词+主语从句

做......是......的1.Itwassurprisingthatshepassedthedifficultexam.2.Itisnotclearwhetherhetoldalie.Attention：

此句型中的形容词是important,necessary等时，从句应该使用虚拟语气。例：Itisimportantthatwe(should)learnEnglishwell.said,reported,believed,thought,announced…句型二过去分词2.It+be+过去分词+主语从句据......1.Itissaidthattheyareidenticaltwins.2.Itisreportedthatabigearthquakehitthearea.Attention：

如果过去分词是suggested,ordered,required,advised,requested等表示建议、要求、命令等词时，从句应该使用虚拟语气。例：Itissuggestedthatstudents(should)maketheirbedbythemselves.apity，anhonor，agoodidea，afact,a/nosurprise，nowonder......句型三名词3.It+be+名词+主语从句做......是......的1.It

isapitythathemissedsuchaninterestingfilm,2.

Itisgoodnewsthathehasrecovered.seem,happen,appear,look,occur,turnout…句型四不及物动词4.It+不及物动词+主语从句1.It

happenedthattheywereoutthatday.碰巧那天他们不在家。2.Itseemsthatitisgoingtorain.

看起来要下雨了。worry,shock…句型五及物动词5.It+及物动词+宾语+主语从句Itshocksmethathefailedinthisexam.他没通过考试，震惊到我了。【即时演练】1.____isafactthatEnglish

isbeingacceptedasaninternationallanguage.2.Itisuncertain_______hecancometoJenny’sbirthdaypartyornot.3._______hemadeanimportantspeechatthemeetingwastrue.4.____isknowntousallthatAmericaisadevelopedcountry.5.Everyyear,_______makesthemostbeautifulkitewillwinaprizeintheKiteFestival.ItwhetherThatItwhoever1.__________________(可能)shewillcomebacktomorrow.2.__________________(很明显)thismeasureiseffective.3._______________(很遗憾)welostthematch.4.________________(这是事实)hecheatedintheexam.5.____________________(据报道)20peoplewerekilledintheaccident.6._____________________(建议)weshouldeatmorevegetableanddomoreexercise.7.__________________(碰巧)Icameintotheofficeatthattime.8._______________________(我突然想起)

Iforgetto

sendtheletter.ItispossiblethatItisobviousthatItisapitythatItisafactthatItisreportedthatItissuggestedthatIthappenedthatItoccurredtomethat【即时演练】03主语从句中其他注意问题主语从句

主谓一致

问题1.Whetherthepatientwillbetaken______unknown.2.Whenandwherethepatientwillbetaken_____unknown.3.Whenthetaskcanbefinishedandwhetherhecanhavearest_____unknown.4.Whathewantsmost____stayingwithhisfamily.

Whattheyneed_______masks(口罩).单个从句做主语，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，谓语的单复数取决它后面的_______。单数单数复数isisareis

are表语Summary主语从句that表是否：whether从句不完整从句完整默默守候的连词默默守候的连接副词表时间：when表地点：where表原因：why表方式：how乐于参与的连接代词需要补充成分人：who,whom,whose事物：what哪一个：which需要补充成分+表无论…时whateverwhoeverwhicheverPractice.Translatethesentences.我没想到的是，现在养老院是一床难求。(that)事实证明，保持快乐的心态会降低得心脏病的风险。（It）听书是否会打消孩子自己去读这本书的积极性还没有定论。(discourage)

WhatIdidn’t

expect

is

that

it

is

very

hard

to

find

a

bed

in

the

nursing

house

fortheaged.Itisprovedthatkeepingahappymindreducestheriskofheartdiseases.Whetherlisteningtoabookwilldiscouragechildrenfromreadingitontheirownremainsaquestion.高考链接(2022高二下·和平期末)It'strue______innerbeautyisveryimportant,butexternalbeautyshouldn'tbecompletelyoverlooked.A．how B．why C．that D．what2.(2022高一下·静安期中)__________morecountriescanusenaturalenergyinthefutureremainstobeseen.A．Whether B．This C．Who D．If3.(2022高一下·静安期中)Oneofthemengavehisopinion_______thebooksaidwasright.A．that B．what C．which D．whether高考链接4.(2022高一下·西安期中)Itisnotaproblem_____wecanwinthebattle;it'sjustamatteroftime.A．where B．why C．when D．whether5.(2020·和平模拟)_________footballissuchasimplegametoplayisperhaps