Unit5LearningAboutLanguage课件高二英语人教版选择性

人教版（2019）选择性必修一Unit5WorkingtheLandLearningAboutLanguage

BuildupyourvocabularyLearningobjectivesLet’sreviewkeywordsandphraseswehavelearned.Asawitnesstofarmers’poorharvestsandevenasevere_________offood,YuanLongpingwasdeterminedto_____hislifeto______thiscrisis.Aftergraduation,herealisedthatwhatfarmersneededmostwastoboostyieldsinthefields.Yuan___________thattheanswerlayinthecreationofhybridrice,onecharacteristicofwhichisthatitusuallyachieveshigheroutputthan__________crops.However,itwasnoeasyjob.Thefirstdifficultyheneededto_______wasscientists’general_________thatthiscouldnotbedone.Through_____effort,Yuanmanagedto______thisincrediblecrop.Itisestimatedthatabout60percentofdomesticriceconsumptioninChinais________ofcropsgeneratedfromYuan’shybridstrains.HisinnovationhasenabledChinesefarmerstoconsiderably_____theiroutputandhelpedfeedtheworld.Unwillingtoretireearlytoalifeof_____andunconcernedabout______orfortune,Yuancontinuedtoturnone_____afteranotherintorealities.wasdevoteshortagetacklingconvincedconventionalassumptionintensegenerateexpandleisurecelebrityvisionReplacetheunderlinedwordswiththecorrectformsofthewordsfromthetext.devotestacklewas(strongly)convincedovercameexpandleisureCompletethesentenceswiththecorrectformsofthewordsfromthetext.Thenusethesewordstomakeyourownsentences.hortageharacteristicsssumeonsumptionCompletethesentenceswiththecorrectformsofthewordsfromthetext.Thenusethesewordstomakeyourownsentences.risiselebritiesonventionalenerateCompletethenewsreportbelowwiththecorrectformsofthewordsandphrasesinthebox.realconsumptionThetunnelsarelitwithpinkLEDsasthereisnonaturallight

_________belowtheground.Thevegetablesaregrowninspecialliquidsinsteadoftheearththatisusedasin______________farming.Manyexpertssharea_________thatthiskindofurbanfarmingcouldhelpnotonlyin_______theproblemofpopulationgrowth,butalsoinadaptingtoclimatechange.Completethenewsreportbelowwiththecorrectformsofthewordsandphrasesinthebox.conventionaldeepdownvisiontacklingLet’sreviewsomekeywordsbybuildingwordnetwork.vision(n)envision(vt)visionary(adj)convention(n)conventional(adj)unconventional(adj)real(adj)reality(n)unreal(adj)really(adv)consume(v)consumption(n)consumer(n)assume(v)assumption(n)assumed(adj)convince(v)convinced(adj)convincing(adj)Let’sreviewsomekeywordsbybuildingwordnetwork.expand(v)expansion(n)generate(v)generation(n)short(adj)shortage(n)innovate(v)innovation(n)innovative(adj)estimate(v)estimation(n)...DiscoverusefulstructuresLearningobjectivesBytheendofthissection,youwillbeableto:1.identifyandsummarizetheusesofsubjectclauses;2.practiseusingandtranslatingsubjectclauses;3.usesubjectclausestotalkaboutwhatqualitiesmakeapersonsosuccessful.Lookanddiscuss.Lead-inWhatisthefunctionsoftheunderlinedpartinthesentence?Whatisthedifferencebetweenthem?WhatYuanLongpingreallycaredaboutwasnotmoneyorcelebrity.YuanLongpingcaredlittleforcelebrityormoney.ssaclauseassubjectSubjectClause•ThatYuanLongpinghadrealisedhisdreamofseawaterricesurprisedthewholeworld.•ItsurprisedthewholeworldthatYuanLongpinghadrealisedhisdreamofdevelopingseawaterrice.•

However,whatconcernedhimmostwasthatfarmersoftenhadpoorharvestsandsometimesevenhadaseriousshortageoffoodtoeat.(P2)•Howthiscouldbedonewasachallengingquestionatthetime.(P3)•However,whetheritwaspossibletodevelopahybridofself-pollinatingplantssuchasricewasamatterofgreatdebate.(P3)•WhatimpressedpeoplemostaboutYuanLongpingwashisongoingabilitytofulfillhisdreams.(P6)subject

Presentationsubject

1.______remainsanunansweredquestion.2.______isanimportanttopicforustoresearch.3.

______

isthatthesechemicalsmayevencausecancer.4.

______

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

jointhispilotexperimentE.Itamazedallofusthatfocusthewordorderofthesubjectclausesusestatementwordorder陈述语序1.______remainsanunansweredquestion.2.______isanimportanttopicforustoresearch.D

C

D.Whenthesewheatfarmerswill

jointhispilotexperiment这些小麦农户什么时候会加入预试验仍然不得而知。C.Howwecanfindasuitablesolutiontoproducesufficientfoodwhilekeepingtheenvironmentsafe如何能够找到一个合适的解决办法，在保证环境安全的同时，生产足够的粮食，是一个需要我们研究的重要课题。3.

______isthatthesechemicalsmayevencausecancer.A

A.Whatworriesmanypeople

令很多人担心的是，这些化学制品甚至可能导致癌症。5.______isthereasonwhysomepeopleprefertoliveinthecountryratherthaninthecity.E

B

E.Itamazedallofusthat令我们所有人惊讶的是，通过这种新技术，可以无土栽培这些蔬菜。B.Thatthelifestyleisslowerandhealthier4.

______thesevegetablescanevenbeplanted

withoutanysoilthroughthisnewtechnology.有些人更喜欢住在乡下而非城市的原因是前者生活节奏更慢、生活方式更健康。SubjectClauses1.定义：在英语中，有的从句在复合句中的作用相当于名词，称作名词性从句。复合句中用作主语的从句叫作主语从句。2.语序：主语从句要用陈述句语序。3.分类：（1）that,whether引导的主语从句that,whether引导主语从句，在句中不充当成分，that本身没有词义，whether不能改if。例：

Thattheearthisroundisafact.

Thathewonthegamemadeatremendousstirinourcountry.

Whethershewillwintheprizeisstillunknown.

Whetheritwilldousharmorgoodremainstobeseen.SubjectClauses（2）连接代词引导的主语从句连接代词what,whatever,which,whichever,who,whom,whose,whoever,whomever等引导主语从句，在从句中充当一定的句子成分，可作主语、宾语、表语和定语。

例：Whoeveristhelasttoleaveshouldturnoffthelights.Whatsomescientistshavefoundisthattheirlong-termusecansometimesharmboththelandandpeople’shealth.

Whichteamwillwinthematchisstillunknown.

Whowillgomakesnodifference.

Whomwemustserveisaquestionofvitalimportance.SubjectClauses（3）连接副词引导的主语从句连接副词when,where,how,why等引导主语从句，在从句中作状语。例：

Whenshewillbebackdependsontheweather.

Whereshehasgoneisamystery.Howthiscouldbedonewasagoodquestion

Whyshedidn’tshowupremainsapuzzle.（4）it作形式主语的主语从句为避免头重脚轻，常由it作形式主语，把主语从句放在句末。例：

Itisafactthattheearthisround.

Itisunknownwhethershewillwintheprize.Itisstillaquestionwhenweshallhaveasportsmeeting.SubjectClauses4.注意事项：（1）主语从句中的that一般情况下不可省略。（2）主语从句在句子中充当主语,句子的谓语动词用第三人称单数。例：Whyherefusedtogoisstillamystery.Thatheisstillaliveissurprising.Whowillwinthematchisstillunknown.

Wherethepartywillbeheldhasnotyetbeendecided.Itisapitythatwecan’tbefriends.Itisapitywecan’tbefriends.Thatwecan’tbefriendsisapity.Wecan’tbefriendsisapity.Readthepassageandunderlineallthesubjectclauses.Theninpairs,discusswhetherthesentenceswithsubjectclausescanbeparaphrased.Sheisunhappyaboutthelowernutritionalvalueandreducedflavour.PracticeRewritethesentencesusingsubjectclauses.EXAMPLEI’dlikeyoutofindouthownewtechnologiescanincreasegrapeproductioninBinchuancounty.WhatI’dlikeyoutofindoutis

hownewtechnologiescanincreasegrape

productioninBinchuancounty.1.Wewantedtoknowwherehehadlostthelaptop.Where___________________waswhatwewantedtoknow.2.Thewayinwhichhedidtheexperimentwaspuzzlingtootherpeople.How___________________waspuzzlingtootherpeople.hehadlostthelaptophedidtheexperimentWorkbookRewritethesentencesusingsubjectclauses.theyusetoomanychemicalpesticidesthesportsmeetwillbeheldMakesentencesusingsubjectclauseswiththehelpofthecues.Whathesaidseemsreasonable.Whethershewillaccepttheinvitationisnotclearyet.Wheretheanimalsaremovingtoisnotexactlyknown.Thatyouhaverecoveredfromyourillnesswillbeagreatrelieftous.Circleandcorrectthemistakeineachsentence.1.WhathaveIforgottenisthatIhaveatesttoday.2.Wholeftmetheseflowersarenotcleartome.3.Thisisobviousthatstudentsshouldpreparewellfortheirfuture.

4.Who’sticketthisishasnotbeenconfirmed.5.Whenthetestwillbegivenhavenotbeendecided.IhaveisItWhosehas陈述语序谓语用第三人称单数it作形式主语主语从句引导词的选择谓语用第三人称单数Combineeachpairofsentencesusingthewordinbrackets.1.Canwecontrolpestswithoutcausinganyilleffects?Thisstillremainsa

question.(Whether)Whetherwecancontrolpestswithoutcausinganyilleffectsstillremainsaquestion.Itiswellknownthatagricultureisthefoundationofourcountry.Thatsomeless-developedcountriesaresufferingfromfoodshortagesisaseriousproblemintheworld.ItistruethatsomeherdsmeninInnerMongoliafixelectronicsensorstotheircattletomonitortheirmovements.2.Agricultureisthefoundationofourcountry.

Thisiswellknown.(It)3.Someless-developedcountriesaresufferingfromfoodshortages.Itisa

seriousproblemintheworld.(That)4.SomeherdsmeninInnerMongoliafixelectronicsensorstotheircattleto

monitortheirmovements.Itistruethattheyaredoingthis.(It)WhatqualitiesdoyouthinkmakeapersonlikeYuanLongpingsosuccessful?Workingroups.Haveadiscussionandprepareapresentation.Thefollowingpointsandexpressionsmayhelpyou.Production

Whatimpressesmemostisthat…