Unit4SectionA1a-1d课件人教版英语八年级下册

UNIT4TheWondersofNatureSectionA1a-1d1.Doyouknowthenameofthewaterfallinthephoto?ThewaterfallinthephotoisVictoriaFalls.Itisoneoftheworld’slargestwaterfalls,knownforitsmassivesprayandroar.2.Whatdoyouthinkisspecialaboutit?3.Whatothernaturalwondersdoyouknow?Examples:theGrandCanyon,theGreatBarrierReef,MountEverest.Knowledge&SkillsMastertheuseofsuperlativeadjectives(e.g.,highest,biggest,lowest,deepest)todescribenaturalwonders.Usespecialquestions(What'sthe...?/How...isit?)toaskandansweraboutfactsofplaces.Recognizeanduselargenumbersandunits(e.g.,metres,squarekilometres)incontext.01Affect&CompetenceAppreciatethescaleanddiversityofthenaturalworld.Understandthatknowledgeisdynamicandneedsupdating.02LearningObjectivesDoyouknowwhatnaturalplacestheyare?Whatamazingthingsdoyouknowaboutthem?Let’stakealookatthemtogether!LeadinNile/naɪl/river尼罗河"Thereisariversolong,thatitflowsthrough11countries.Ifyouwalkitswholelength,itwilltakeyouoverayear!""Thereisawaterfallsotallthatthewaterturnsintomistbeforeitevenreachestheground.It'slikeariverfallingfromtheclouds!"AngelFalls安赫尔瀑布/ˈeɪn.dʒəlfɔːlz/"Thereisaholeintheocean.ItissodeepthatifyouputMountQomolangmainsideit,thetopwouldstillbe2kilometresunderwater!"MarianaTrench马里亚纳海沟/ˌmeriˈænətrentʃ/thedeepesttrenchintheocean"Thereisaplacesohigh,thatifyoustandontop,youareclosertotheskythananyotherpersononEarthMountQomolangma(珠穆朗玛峰)/maʊntˈtʃəʊ.mə.lɑːŋ.mə/thehighestmountainintheworld"ThereisaplacewhereyouCANNOTsink.Youcanreadanewspaperwhilefloatingonyourback!"DeadSea(死海)thelowestplaceonearth"Thereisaplacesodry,thatsomeareasgetnorainfordecades.Butatnight,youmightfreezebecauseitgetssocold!"SaharaDesert（撒哈拉沙漠）/səˈhɑːrə

ˈdezət/thebiggestdesertintheworld1aMatchtheplaceswiththepictures.DeadSeaSaharaDesertNileRiverMarianaTrenchAngelFalls

MountQomolangmaWelcometoourgameshow!Today,it'sallaboutgeography.Answerasquicklyasyoucan!PreListeningLet’spredictCanyouguessoutwhatwearegoingtolistento?Listentotheconversationandthinkaboutthequestionsbelow.1.WhatisthelatestmeasuredheightofMountQomolangma?A.8,848.43metresB.8,848.86metresC.8,844.43metresD.8,844.86metres2.HowlargeistheSaharaDesertinsize?A.About900,000squarekilometresB.About9,000,000squarekilometresC.About90,000,000squarekilometresD.About900,000,000squarekilometres3.HowdeepistheMarianaTrench?A.About416metresB.About8,848.86metresC.About11,000metresD.About9,000,000metresHost:Welcometoourgameshow!Today,it'sallaboutgeography.Answerasquicklyasyoucan!Questionone:Whatisthe__________mountainintheworld?FuXing:It'sMountQomolangma!Host:Correct!Howhighisit?LiuHongyu:Iknowthis—it's____________metreshigh.Host:No,sorry.FuXing?FuXing:Itis_____________metres!Host:Yeah!ButsomescientistssayQomolangmaisstillgrowing_________Now,namethe__________desertintheworld.FuXing:TheTaklimakanDesert?Host:Wrong!Ella?Ella:It'stheSaharaDesert.Host:Right!Now,howbigisit?Ella:

It'sabout____________squarekilometres.Host:That'sright!What'sthe__________placeonearth?LiuHongyu:It'stheDeadSea!Host:Welldone!Itssurfaceis__________metresbelowsealevel.Nowwhere'sthe__________pointintheocean?FuXing:It'sintheMarianaTrench.Host:That'scorrect!Howdeepisit?FuXing:It'sabout_____________metresdeep.Host:Correct!8,848.438,848.869,000,00011,000tallerhighestbiggestlowestdeepest416ListentotheconversationagainandfillintheblanksPlaceDescriptionMeasurementMountQomolangmathe________________intheworld_____________metreshighSaharaDesertthe_______________intheworldabout___________squarekilometresinsizeDeadSeathe________________onearth_______________metresbelowsealevelMarianaTrenchthe______________intheoceanabout___________metresdeep1bListentothegameshow.Completethedescriptionsoftheplaces.highestmountainbiggestdesertlowestplacedeepesttrenchPlaceDescriptionMeasurementMountQomolangmathe________________intheworld_____________metreshighSaharaDesertthe_______________intheworldabout_____________squarekilometresinsizeDeadSeathe________________onearth_______________metresbelowsealevelMarianaTrenchthe______________intheoceanabout___________metresdeep1cListenagain.Completethemeasurementsin1bwiththenumbersbelow.highestmountainbiggestdesertlowestplacedeepesttrench8,848.869,000,00041611,0004168,848.86,11,000,9,000,000Whatcanyoulearnfromthispassage?1.WhatcanwelearnaboutfactsandknowledgefromFuXingandLiuHongyu’sanswers?It’simportanttousethelatestinformationandbemorecarefulaboutfacts.2.WhyisiteasytomixuptheTaklimakanDesertandtheSaharaDesert?Whatdoesthistellusaboutlearninggeography?Botharelargedeserts,soit’seasytoconfusethem.Weneedtoremembernotjustnames,butalsokeyfactslikesizeandlocation.Whatcanyoulearnfromthispassage?1.WhatdothesenumberstellusaboutlearningnewthingsAccuracyisimportantandknowledgeisalwayschanging.2.Howdoesknowingaboutthehighestmountain,deepesttrench,andbiggestdeserthelpusunderstandtheworldwelivein?IthelpsusseehowbigandamazingtheEarthis,andmakesusrealizehowsmallwearecomparedtoit.1dTalkabouttheplacesyouhavelearntabout.It's...What'sthelowestplaceonearth?Itssurfaceis...metresbelowsealevel.Howlowisit?Now,what's...What'sthehighestmountainintheworld?What'sthebiggestdesertintheworld?What'sthelowestplaceonearth?Where'sthedeepestpointintheocean?Howhighisit?Howbigisit?Howlowisit?Howdeepisit?It'sMountQomolangma.It'stheSaharaDesert.It'stheDeadSea.ItisintheMarianaTrench.Itisabout8,848.86metreshigh.Itisabout9,000,000squarekilometresinsize.Itssurfaceis416metresbelowsealevel.Itisabout11,000metresdeep.1.Answerasquicklyasyoucan!as...asyoucan：固定结构，意为“尽可能……”2.Whatisthehighestmountainintheworld?Whatisthebiggestdesertintheworld?Whatis

thelowestplaceonEarth?Whereisthedeepestpointintheocean?形容词最高级用法构成：单音节词：high→highest,big→biggest,low→lowest,deep→deepest多音节词：interesting→themostinteresting规则：最高级前必须加the：thehighestmountain,thebiggestdesert常与表示范围的短语连用：intheworld,onEarth,intheoceanLanguagepointsA:Howhighisit?B:It's