【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.Tousetherestrictiverelativeclausestodescr

ibepicturesofdisasters.Retellthepassagebriefly:Strangethingswerehappeningthatnight.Thewaterinthewells...Smellygas…Animals…Butpeoplew

ere...Suddenly,everythingbegantoshake.Itseemedasif...Ahugecrack…Hardhillsofrock…Inlessthanoneminutes,…Twothirdsofthepe

ople...Everywheresurvivorslooked,therewasnothingbutruins.Nearlyeverything…Bricks…Mostbridges…Therailwaytracks…Peoplewereinsho

ck.Andlaterthatafternoon,…Peoplebegantowonder…Buthopewasnotlost.Soonaftertheearthquake,…Doctorsandnurses…Wo

rkers…Thecitybegantobreatheagain.Tangshanbegantoreviveitself.Withthesupport…Thenewcity…Observetherestricti

verelativeclausesinthesentencebelow.•TheTangshanearthquakewasaterribleexperiencethatmygreatgrandmacannotforget.•Thecouplewh

olivenexttousvolunteeredtohelpafterthevolcanoerupt.•Thesupplieswhichwereprovidedtothedisasterareawerecollectedfromar

oundthecountry.•MrLiisanarchitectwhosedesignsforthenewtownhavewonpraise.•AdoctorwithwhomJamesusedtoworkdiedinthe2016earthquakeinEducator.Findmore

sentenceswiththesamestructurefromthetext.•Thereweredeepcracksthatappearedinthewellwalls.•Twothirdsofthepeoplewholivedtherewere

deadorinjured.•Thenumberofpeoplewhowerekilledorbadlyinjuredinthequakewasmorethan400,000.•Soonafterthequakes,thearmys

ent150,000soldierstoTangshantodigoutthosewhoweretrappedandtoburythedead.•Workersbuiltsheltersforsurvivorswhose

homeshadbeendestroyed.ThestructureofrestrictiverelativeclausesTwothirdsofthepeoplewholivedthereweredeadorinjured.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that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,everythi

ng,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：The

ytalkedabouttheteachersandschoolsthattheyhadvisited.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which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who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。Com

pleteeachsentencewiththat,which,who,whose,whomor/.1.Herearesomeofthepeople_____homesweredestroyedbythetyphoon.2.Thet

erribleshakingofthebuildingwokeupallthepeople_________wereasleep.3.Thenextday,peopleputupsheltersintheopenairusinganythi

ng_____theycouldfind.whosewho/thatthat4.Severaldayslater,mostofthebuildings__________hadbeendamagedbythehurricanewererepaired.5.Theinjuredboy__

____motherwaslostinthedisasterwastakentothehospital.6.Thewomanwroteathank-youlettertothesoldierby_______shewasrescu

ed.7.Isthisyoungboy____savedseveralotherstudentstrappedunderbuildings?that/whichwhosewhomwho1TheeruptionofMountVesuviu

sin79ADtookthepeopleofPompeiibysurprise.Theyhadalwaysknownthatthemountainwasavolcanobutithadbeenquietforsolongth

atnobodysawitasathreat.Whenthevolcanofinallydiderupt,itwassoquickandsoseverethatthetownwassooncoveredinlavaandash.Awriter________wasth

ereduringtheeruptiondescribedhowlavawasthrownintotheairlikeafountain.Completetheshortpassageswiththat,which,who,whose,whomo

r/.who/thatAfteritfelltoearth,itturnedintowaveoflava_____________travelleddownthemountainfasterthanpeoplecouldrunaway.Itwasanabsolute

disasterforthose________couldnotescapeintime.ManyofthewoodenhousesandbungalowsinPompeiiwereburnedtotheground,butthest

onehousesremainedundertheashuntiltheywererediscoveredduringthe20thcentury.who/thatthat/which2ThedayafterthiseruptionIwasluckyenoughtoh

aveamuchcloserlookatit.TwootherscientistsandIweredrivenupthemountainanddroppedascloseaspossibletothecrater__________h

adbeenformedduringtheeruption.Weputonspecialclothesbeforewewentanycloser.Lookinglikespacemen,wehadwhiteprotectivesuits___________coveredourwholebo

dy,helmets,bigbootsandspecialgloves.Itwasnoteasytowalkinthesesuits,butweslowlymadeourwaytotheedgeofthecraterandlookdownintothered,boilingcenter.that

/whichthat/whichTaketurnstoaskeachotheraboutthepictureswiththelanguagewehavelearnttoday.A:What’stherescueworkerdoing?B:Sh

e’sfeedingthebabywhosurvivedtheearthquake.A:Whatarethesoldiersdoing?B:Theyareputtingupthetentswhichareusedas

temporarysheltersforthehomelessintheearthquake.Writeashortpassageof8sentencestodescribetherescueworkafterthenat

uraldisaster.Atleast4restrictiverelativeclausesmustbeused.