【文档说明】高中英语必修一《Unit 4 Natural disasterse》（Discovering Useful Structures）PPT课件-人教版（2019）.ppt，共(26)页，2.823 MB，由小喜鸽上传

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1.Tolearntherestrictiverelativeclauseswiththat,which,who,whose,whomand/.2.Tousetherestrictiverelativeclausestodescribepicturesofdisaster

s.Retellthepassagebriefly:Strangethingswerehappeningthatnight.Thewaterinthewells...Smellygas…Animals…Butpeop

lewere...Suddenly,everythingbegantoshake.Itseemedasif...Ahugecrack…Hardhillsofrock…Inlessthanoneminutes,…Twothirdsofthepeople...Eve

rywheresurvivorslooked,therewasnothingbutruins.Nearlyeverything…Bricks…Mostbridges…Therailwaytracks…Peoplewereinshock.Andlaterthatafternoo

n,…Peoplebegantowonder…Buthopewasnotlost.Soonaftertheearthquake,…Doctorsandnurses…Workers…Thecitybegantobreatheagain.Tangsh

anbegantoreviveitself.Withthesupport…Thenewcity…Observetherestrictiverelativeclausesinthesentencebelow.•TheTangshaneart

hquakewasaterribleexperiencethatmygreatgrandmacannotforget.•Thecouplewholivenexttousvolunteeredtohelpafterthevolcanoerupt.•Thesupplieswhic

hwereprovidedtothedisasterareawerecollectedfromaroundthecountry.•MrLiisanarchitectwhosedesignsforthenewtownhavewonpraise

.•AdoctorwithwhomJamesusedtoworkdiedinthe2016earthquakeinEducator.Findmoresentenceswiththesamestructurefromthetext.•Thereweredeep

cracksthatappearedinthewellwalls.•Twothirdsofthepeoplewholivedthereweredeadorinjured.•Thenumberofpeoplewhowerekilledorbadlyinjuredinthequakewasmoret

han400,000.•Soonafterthequakes,thearmysent150,000soldierstoTangshantodigoutthosewhoweretrappedandtoburythedead.•Workersbuiltshelt

ersforsurvivorswhosehomeshadbeendestroyed.ThestructureofrestrictiverelativeclausesTwothirdsofthepeoplewholivedtherew

eredeadorinjured.先行词关系代词从句定义:在复合句中起定语作用，修饰名词、代词、整个主句或主句中的一部分的从句。类型:限制性定语从句（描述主句所涉及的人或物的具体情况，是主句不可缺少的一部分

；如省去，主句意义不完整或失去意义）。关系代词：that,which,who,whom,whose等。引导定语从句的关系代词有三个作用：1）连接作用：引导从句，把从句和它所修饰的内容连接起来；2）替代作用：在从句中替代被从句所修饰的先行词；3）在

从句中充当成分：作主语、宾语、表语、定语。指人指物主语宾语thatwhichwhowhom√√√√√√√√√√√√××××关系代词在从句中可以：何时可以省略？做宾语时可以省略关系代词的用法与辨析(1)关系代词tha

t与which在定语从句中,关系代词that既可指人，也可指物，which一般用于指物。在指物时，二者一般可以互换。★通常使用that引导定语从句的情况：①当先行词为all,everything,anything,nothing,much,little,none等不定代词或先行词

被theonly,few,little,no,all,every,thevery等词修饰时。②当先行词同时包括人和物时。如：Theytalkedabouttheteachersandschoolsthattheyh

advisited.③当先行词前有序数词first,last,next等或形容词的最高级修饰时。如：ThisisthefirstarticlethatI’vewritteninJapanese.④当主句是由who或w

hich开头的疑问句时。如：WhoisthemanthatisstandingbyJack?(2)关系代词who与whomwho指人，是主格，在定语从句中作主语，一般可用that替换。whom指人，是宾格，在定语从句中作宾语。在口语和非正式文体中可用wh

o或that替换，也可以省略。(3)关系代词whosewhose是who的所有格，在定语从句中作定语，起限定作用。whose引导定语从句时，先行词可以指人，也可以指物。Completeeachsentencewiththat,

which,who,whose,whomor/.1.Herearesomeofthepeople_____homesweredestroyedbythetyphoon.2.Theterribleshakingofthebuildin

gwokeupallthepeople_________wereasleep.3.Thenextday,peopleputupsheltersintheopenairusinganything_____theycouldfind.whosewho/thatthat4.Sever

aldayslater,mostofthebuildings__________hadbeendamagedbythehurricanewererepaired.5.Theinjuredboy______motherwaslostinthedisasterwastakentoth

ehospital.6.Thewomanwroteathank-youlettertothesoldierby_______shewasrescued.7.Isthisyoungboy____savedseveralotherstudentstrappedund

erbuildings?that/whichwhosewhomwho1TheeruptionofMountVesuviusin79ADtookthepeopleofPompeiibysurprise.Theyhadalwaysknownthatthem

ountainwasavolcanobutithadbeenquietforsolongthatnobodysawitasathreat.Whenthevolcanofinallydiderupt,itwassoquickan

dsoseverethatthetownwassooncoveredinlavaandash.Awriter________wasthereduringtheeruptiondescribedhowlavawasthrownintotheairlikeafountain.Complete

theshortpassageswiththat,which,who,whose,whomor/.who/thatAfteritfelltoearth,itturnedintowaveoflava_____________travelleddownthemountain

fasterthanpeoplecouldrunaway.Itwasanabsolutedisasterforthose________couldnotescapeintime.ManyofthewoodenhousesandbungalowsinPompeiiwereburnedtothegro

und,butthestonehousesremainedundertheashuntiltheywererediscoveredduringthe20thcentury.who/thatthat/which2ThedayafterthiseruptionIwas

luckyenoughtohaveamuchcloserlookatit.TwootherscientistsandIweredrivenupthemountainanddroppedascloseasp

ossibletothecrater__________hadbeenformedduringtheeruption.Weputonspecialclothesbeforewewentanycloser.Lookinglikespacemen,wehadwhitepr

otectivesuits___________coveredourwholebody,helmets,bigbootsandspecialgloves.Itwasnoteasytowalkinthesesuits,butweslowlymadeourwaytotheedgeofthecrater

andlookdownintothered,boilingcenter.that/whichthat/whichTaketurnstoaskeachotheraboutthepictureswiththelanguagewehavelearnttod

ay.A:What’stherescueworkerdoing?B:She’sfeedingthebabywhosurvivedtheearthquake.A:Whatarethesoldiersdoing?B:Theyareputtingupt

hetentswhichareusedastemporarysheltersforthehomelessintheearthquake.Writeashortpassageof8sentencestodescribetherescueworkafterthenaturaldisa

ster.Atleast4restrictiverelativeclausesmustbeused.