Unit4SectionB(2a2c)课件人教版八年级英语下册

SectionB(2a-2c)TheWondersofNatureUnit4030102LearningObjectives1.能够掌握below等词汇及反义词的对应关系2.感知“how+形容词”特殊疑问句的用法，并正确使用该结构提问3.能够运用所学词汇表达自己对自然的看法WatchavideoThe

highestmountaininChina:

.MountQomolangmaLeadinQuizThe

biggestlakeinChina:

.QinghaiLakeLeadinQuizThe

longestriverinChina:

.theYangtzeRiverLeadinQuizThe

biggestwaterfallinChina:

.HuangguoshuWaterfallLeadinQuizbelow作介词：后面必须跟名词，表示“低于”或“在…下面”。位置：Thelakeisbelowsealevel.（低于海平面）数量/等级：Temperaturesarebelowzero.（零度以下）职位：Sheisbelowthemanager.（职位低于）Let’slearn2a1.____below

5.____top2.____common

6.____northern3.____low

7.____risky4.____dead

8.____surviveA.safe

E.unusualB.bottom

F.livingC.southern

G.highD.above

H.dieDEGFBCAH/ˈrɪski/adj.有危险的;有风险的/ˈsʌðən/adj.在南方的;向南的在...下面常见的低的死的顶部北部的存活adj.有危险的below↔abovecommon↔unusuallow↔highdead↔livingtop↔bottomnorthern↔southernrisky↔safesurvive↔dieCanyouaddmoreantonyms?deep↔shallowlong↔shortrise↔fallappear↔disappearharm↔protectfailure↔successremain↔changelastly↔firstlyWritedownasmanypairsasyoucanandshare.Brainstorm1.

Itis______towaitforthetrafficlighttoturnred,butitis______towalkacrosstheroadwithoutlooking.saferisky2.Seeingacatinthestreetisvery_________,butseeingawildtigerthereis_________.commonunusual3.Thekiteis________theclouds,andthebridgeis_______theriver.abovebelow4.Withoutsunlightandwater,plantscannot________,theywill______.survivedie5.

The_____ofthemountainiscoveredwithsnow,whilethe________isfullofgreentrees.topbottom6.Thisareahasa_________climate,butits________partismuchwarmer.northernsouthern7.

Thetemperatureisvery______inwinter,butitbecomes______insummer.highlow8.The______leavesfalltotheground,and_________plantskeepgrowinginspring.deadlivingThinkandshare1.Howfarisitfromyourhometoschool?2.Howheavyisabluewhale?3.Howlargeisourcountry?4.Howoftendoyouexercise?It’sabout2kilometersfrommyhometoschool.Abluewhaleweighsabout150tons.Ourcountryisabout9.6millionsquarekilometersinsize.Iexercisethreeorfourtimesaweek.Whatdothesequestionsaskabout?DistanceWeightSizeFrequencyCanyoufindthesentencepattern?Sentencepattern:How+adj./adv....?2bReadtheexamplesandmakemoresentencesusinghowandthewordsinthebox.Sentencepattern:How+adj./adv....?Howfarisitfromyourhometoschool?Howheavyisabluewhale?Howlargeisourcountry?Howoftendoyouexercise?longhighdeepoldfastsoon1.______________________________2.______________________________3.______________________________4.______________________________5.______________________________6.______________________________HowlongistheYangtzeRiver?HowhighisMountQomolangma?HowdeepcanFendouzhedive?Howoldisthedesert?Howfastcantheanimalrun?Howsoonwillyouarrive?It’sabout6,300kilometerslong.It’s8,848.86metershigh.Itcandivetoabout10,909metersdeep.It’sabout100yearsold.Theycanrunasfastas112kilometersperhour.Iwillarrivein10minutes.Askandanswerthesequestions.Whatarethepicturesabout?WhatdoyouknowaboutLakebaikal?TheyareaboutLakeBaikal.LookandshareLocationSizeDepth...?2cCompletethepassagewiththecorrectformsofthewordsinthebox.deepsurvivewonderfulsurfacediveLocatedinSiberia,Russia,LakeBaikalisoneoftheworld’smostfamouslakes.Itisthe__________freshwaterlakeintheworld.Toreachthebottom,youmust__________1,620metres!Itisalsolargerthanmostotherlakes.Its__________covers31,500squarekilometres.ThatisbiggerthanthecountryofBelgium!LakeBaikaliscoldmostoftheyear.Butover1,200differenttypesofanimalscanstill__________inthisenvironment.Today,thelakestillattractsmanycurioustravellers.Afterall,itisagreatnatural__________!Tip:Decidethepartofspeechforeachblank.Itmakesthetaskeasiersuperlativeadj.v.n.n.v.2cCompletethepassagewiththecorrectformsofthewordsinthebox.deepsurvivewonderfulsurfacediveLocatedinSiberia,Russia,LakeBaikalisoneoftheworld’smostfamouslakes.Itisthe__________freshwaterlakeintheworld.Toreachthebottom,youmust__________1,620metres!Itisalsolargerthanmostotherlakes.Its__________covers31,500squarekilometres.ThatisbiggerthanthecountryofBelgium!LakeBaikaliscoldmostoftheyear.Butover1,200differenttypesofanimalscanstill__________inthisenvironment.Today,thelakestillattractsmanycurioustravellers.Afterall,itisagreatnatural__________!deepestdrivesurfacesurvivewonderCirclethenewwordsinthetext.Readthetextandmatchthenewwordswiththeirmeanings.asimilargroupofthingsorpeoplebeinaplacewaterthatisnotsaltyfromnature,notmadebypeoplemakesomeoneinterestedinsomethingwantingtoknowsomethingmoresomeonewhotravelsfromplacetoplacelocatefreshwatertypeattractcurioustravellernaturalNewwordsMeaning/ləʊˈkeɪt//ˈfreʃwɔːtə(r)//taɪp//əˈtrækt//ˈkjʊəriəs//ˈtrævələ(r)//ˈnætʃ(ə)rəl/Readandanswer1.

WhereisLakeBaikallocated?2.

WhatkindoflakeisLakeBaikal?ItislocatedinSiberia,Russia.3.

HowdeepisLakeBaikal?4.

HowlargeisLakeBaikal?5.

WhatdidthetextcompareLakeBaikalwith?Why?6.

WhydomanytravelersvisitLakeBaikal?Itisthedeepestfreshwaterlakeintheworld.Itisabout1,642metersdeep.Itisabout31,500squarekilometresinsize./ItislargerthanBelgium.ItcomparedLakeBaikalwithBelgium.BecauseitwantstoshowhowlargeLakeBaikalis.Becauseitisagreatnaturalwonderanditattractsmanytravelers.Discuss1.

DoyouwanttovisitLakeBaikal?Whyorwhynot?Yes,Ido.Becauseitisagreatandamazingnaturalwonder.Iwanttoenjoyitsbeautifulsceneryandcleanfreshwater.2.

WhatdoyouthinkisthemostspecialthingaboutLakeBaikal?3.

Ifyoucouldtravelthere,whatwouldyouliketodo?4.

WhyshouldweloveandprotectnaturalwonderslikeLakeBaikal?Itisthedeepestfreshwaterlakeintheworld.Anditissolargeandbeautiful.Iwouldtakephotos,enjoythecleanwaterandthewonderfulnature.Ialsowanttolearnmoreaboutit.Becausenaturalwondersarespecialandvaluable.Theyareournaturalheritage.Weshouldprotectthemsothatpeopletodayandthenextgenerationscanstillenjoytheirbeauty.Itisourdutytoloveandprotectthem.GroupWork:CreateYourOwnNaturalWonderGrouping:Workingroupsof3-4students.TaskList:1.

Naming:Giveyournaturalwonderaspecialname.2.

Describing:Usethree"How...?"sentencestodescribeitsfeatures(e.g.,depth,height,age).3.

Drawing:Drawasimplesketchofyourwonder.4.

Promising:Writeonesentenceaboutprotectingyourwonder.5.Showandexplainyournaturalwonderbriefly.Tools:marketpenpaperpencileraserrulerShowtimeChecklistStarsNameCreative&clear☆☆☆☆☆Howsentences3correctsentences☆☆☆☆☆Sketch Clear&tidy☆☆☆☆☆ProtectionpromiseClear&proper☆☆☆☆☆PresentationClearvoiceandfluent☆☆☆☆☆LanguagePointsLocatedinSiberia,Russia,LakeBaikalisoneoftheworld’smostfamouslakes.Itisthedeepestfreshwaterlakeintheworld.Toreachthebottom,youmustdive1,620metres!Itisalsolargerthanmostotherlakes.Itssurfacecovers31,500squarekilometres.ThatisbiggerthanthecountryofBelgium!LakeBaikaliscoldmostoftheyear.Butover1,200differenttypesofanimalscanstillsurviveinthisenvironment.Today,thelakestillattractsmanycurioustravellers.Afterall,itisagreatnaturalwonder!belocatedin…位于…；坐落在…世界上最著名的湖泊之一淡水湖到达底部cover…squarekilometres覆盖…平方公里比利时这个国家一年中的大部分时间不同种类的动物在这种环境中吸引许多好奇的旅行者一处伟大的自然奇观EnjoynatureProtectnatureRespectnatureLanguagePointsadj.自然的;天生的naturalIt’snatural(forsb.)todosth.对某人来说做某事是很自然的Eg.It’snaturalforteenagerstohavetheirownideasaboutlife.

词汇拓展

naturen.自然;天性naturallyadv自然地;天生地LanguagePointsv.吸引;招引;引起attractattractsb.吸引某人beattractedby/to被…吸引attractone’sattention引起某人的注意

词汇拓展

attractionn.景点attractiveadj.有吸引力的LanguagePointsadj.位于;坐落在locatedbelocatedin/on