高中英语-Unit 4 Discovering useful structures教学课件设计

课程名称：Book1unit4

Discoveringusefulstructures

学科：英语必修一

年级：高一

版本：人教版

工作单位：诸城

主讲教师：Book1unit4DiscoveringusefulstructuresDescribepicturesofdisasters

诸城刘璇LearningaimsTolearnthebasicknowledgeofrestrictiverelativeclauses.To

describepicturesofdisastersusingrestrictiverelativeclauses.restrictiverelativeclauses

WhathappenedinTangshanearthquake?Step1Leadin

Strangethingswerehappening.Thereweredeepcracksthatappearedintheroads.Oneofthemostdeadlyearthquakeshadbegun,aquakethatevencauseddamagemorethan150kilometresawayinBeijing.Twothirdsofthepeoplewholivedthereweredeadorinjured.Thenumberofpeople

who

werekilledorbadlyinjuredinthequakewasmorethan400,000.Soonafterthequakes，thearmysentsoldierstoTangshantodigoutthose

who

weretrappedandtoburythedead.Workersbuiltsheltersforsurvivors

whosehomeshadbeendestroyed.Slowly，thecitybegantobreatheagain.Whatarerelativeclauses?定语从句定义1.

修饰名词或代词的句子叫定语从句(relativeclauses)。被定语从句修饰的名词或代词

叫做先行词(headnouns)。

3.定语从句通常放在先行词的后面，由

关系代词(relativepronouns)或

关系副词(relativeadverbs)引导。structuremainclauserelativeclauseheadnounrelativepronouns先行词关系代词定语从句Thereweredeepcracksthatappearedintheroads.which,who,whom,whose,thatStepIIAnalysethestructure.1.TheTangshanearthquakewasaterribleexperiencethatmygreat－grandmacannotforget.2.Thecouplewholivenexttousvolunteeredtohelpafterthevolcanoerupted.3.Thesupplieswhichwereprovidedtothedisasterareawerecollectedfromaroundthecountry.4.MrLiisanarchitectwhosedesignsforthenewtownhavewonpraise.5.AdoctorwithwhomJamesusedtoworkdiedinthe2016earthquakeinEcuador.object,thingsubject,personsubject,thingrelative,personobject,personwhichthatthat1.Thehousewhose

roofwasbrokenfelldowntotheground.2.Thehouseofwhichthe

roofwasbrokenfelldowntotheground.

relative,thingobject,thing关系代词指代的先行词在从句中充当的成分who人主语、宾语whom人宾语which物主语、宾语that指人/物主语、宾语、表语whose人/物定语relativepronouns如何选用关系词？1）分清主从句（判断从句类型）2）找准先行词（判断先行词的指代作用）3）分析从句主谓宾（若在从句中做主、宾、表，选用that/which/who/whom,若前后两个名词构成所属关系，选用whose4）根据指人，指物，确定关系词

_____________willgaveusalecturethisweekend.1.Heistheprofessor_____________theyinvitedyesterday.___________lecturewelikebest.

__________sufferedanearthquake.2.Thisisthecity.__________peoplerebuilt

that/who(that/who/whom)whosethat/which(that/which)1Chooseanumberandfinishthesentence.

ChallengeYourself

234567

1.Herearesomeofthepeople___________homesweredestroyedbythetyphoon.2.Theterribleshakingofthebuildingwokeupallthepeople________wereasleep.whosewho

3.Thenextday,peopleputupsheltersintheopenairusinganything___________theycouldfind.4.Severaldayslater,mostofthebuildings___________hadbeendamagedbythehurricanewererepaired.thatthat/which先行词为all,everything,nothing,something,anything,little,much等不定代词或被all,every,no,some,any,little,much等修饰时。5.Theinjuredboy___________motherwaslostinthedisasterwastakentothehospital.whose6.Thewomanwroteathank-youlettertothesoldierby_________shewasrescued.7.Isthistheyoungboy_______savedseveralotherstudentstrappedunderbuildings?whomwhoMakeupsentences.A:What'stherescueworkerdoing?B:She'sfeedingthebabywhosurvivedtheearthquake.A:Whoisthewomanthatisholdingthebaby?B:She'sarescueworker.Makeupsentences.A:Whatarethesoldiersdoing?B:Theyarebuildingsheltersforthosewhosehomeshavebeendestroyedbytheearthquake.Makeupsentences.A:Whyisthisdogusedintherescueteam?B:Thedog,whichhassharpsmellandhearingisgoodatfindingpeopleintheruins.今年各种各样的自然灾害对美国造成了巨大损害。美国西部发生了1200多年以来最严重的一次大旱；一个州遭遇罕见洪水，成千上万无家可归的人们被迫离开家园。而美国新冠确诊(ConfirmedcasesinCOVID-19)人数将近600万例，居世界第一(rankingfirst)。加州(California)发生的大火，到现在已经持续了三个多月。并且美国加州遭遇的一万多次雷击(lightningstrikes)，引发了超过300起火灾，大火烧毁了大量珍贵红木树(redwoodtrees)。火灾的浓烟严重污染了环境，损害了人们的健康，加快了疫情(epidemic)的传播。StepV

Writing

Thisyear,therehavebeenvariousnaturaldisastersthatcausegreatdamagetotheUnitedStates.Thedroughtwhichmaybethemostseriousdroughtinmorethan1200yearshappenedinthewesternUnitedStates.Astatesufferedarareflood.Thousandsofpeoplewhosehomeshavebeendestroyedareforcedtoleave.ThenumberofpeoplewhoareconfirmedcasesinCOVID-19isnearly6million,rankingfirstintheworld.ThefirewhichbrokeoutinCaliforniahaslastedforover3months.Inaddition,morethan11,000lightningstrikesthatCaliforniasufferedcausedover300fires,destroyingalargenumberofpreciousredwoodtrees.Theheavysmokethatarecausedbythefireseriouslypollutestheenvironmentanddamagepeople’s