Unit 4 The Wonders of Nature Section A Grammar Focus(内嵌视频) 课件 2025-2026学年人教版英语八年级下册_第1页
Unit 4 The Wonders of Nature Section A Grammar Focus(内嵌视频) 课件 2025-2026学年人教版英语八年级下册_第2页
Unit 4 The Wonders of Nature Section A Grammar Focus(内嵌视频) 课件 2025-2026学年人教版英语八年级下册_第3页
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Unit 4 The Wonders of Nature Section A Grammar Focus(内嵌视频) 课件 2025-2026学年人教版英语八年级下册_第5页
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TheWondersofNatureUnit4SectionAWhatisamazingaboutnature?GrammarFocus能够复习并现固形容词和副词的比较级和最高级的用法,总结和积累用于比较事物的不同语言结构;能够总结和梳理大数字的表达法,并理解英文数字表达法的特点。(学习理解)01能自主整合课内外地理信息,运用比较级/最高级和单位表达,完成对自然奇观的综合介绍与多维度对比,设计并提出有逻辑的比较类问题,实现从课本句型到真实交际的知识迁移与创造性输出。(迁移创新)03能够掌提有关地理之最及其高度、长度、深度、面积等信息的问句和答语,使用形容词和副词的比较级、最高级和大数宇描述自然景观。(应用实践)02教学目标01Lead-inLet’swatchandlearn!02PresentationLet’sreview!原级比较级最高级happyhappiergood/wellbestuglyuglierlittleleastshyshyerbad/badlyworsestupidmoststupidhappiestbetterugliestlessshyestworstmorestupidWhatkindsofnaturalwonderscanyouseeinthepictures?Let’slookandfillintheblanks!Therearetwoamazingplacesonearth.Thefirstplaceismuch_____thanmostotherplaces.Itisoneof__________placesthedaytime.Thedaysthereareusually________thaninmostplaces,butthenightscanbe________thanyouthink.Plantsarenotas________asinotherplacesbecausewaterisoneofthemost________thingstofindhere.Thesecondplaceis________thanalmostanywhereelse.Therainfallsthe________inthisplace.Thetreesgrow_______and________thantheonesincities.Theairthereismuch________thaninotherplaces.drierthehottestsunniercommoncoldergreenerheaviesttallerthickerfresherdifficultdesertrainforestReadthesentences.Circletheadjectiveswhichcomparethings.Underlinetheadverbswhichcompareactions.4aWhatisthebiggestdesertintheworld?ItistheSaharaDesert.Howbigisit?Itisabout9,000,000squarekilometresinsize.Whereisthedeepestpointintheocean?ItisintheMarianaTrench.Howdeepisit?Itisabout11,000metresdeep.Somedeep-seaanimalsareblind,buttheycan“see”aswellasothers.MountQomolangmaisoneofthegreatestwondersoftheworld,anditisstillgrowingtaller.TheYangtzeRivertravelsthefarthestinChinaandisabout6,300kilometreslong.Let’sreview!形容词比较级、最高级:adj.-er或moreadj.

than;theadj.-est或themostadj.+n.+(in/of...)副词比较级、最高级:v.+adv.-er或moreadv.than;v.+(the)adv.-est或(the)mostadv.(in/of..)同级比较:as+adj./adv.

+as比较级V.S.最高级Let’sreview!比较级V.S.最高级常见句型越来越……:比较级+and+比较级(moreandmore+adj.)Theweatherisgettingcolderandcolder.Theharderyouwork,thebettergradesyouwillget.越……,越……:the+比较级,the+比较级Sherunsfasterthananyotherstudentinherclass.比较级表最高级:比较级+than+anyoneelse/anyother+名词单数Let’sreview!比较级V.S.最高级常见句型LuXunisoneofthegreatestwritersinChina.TheYellowRiveristhesecondlongestriverinChina.最……的……之一:oneof+the+形容词最高级+可数名词复数第几最……:the+序数词+最高级+单数名词Doyourememberhowtopronouncethesenumbers?Whatisthebiggestdesertintheworld?ItistheSaharaDesert.Howbigisit?Itisabout9,000,000squarekilometresinsize.Whereisthedeepestpointintheocean?ItisintheMarianaTrench.Howdeepisit?Itisabout11,000metresdeep.Somedeep-seaanimalsareblind,buttheycan“see”aswellasothers.MountQomolangmaisoneofthegreatestwondersoftheworld,anditisstillgrowingtaller.TheYangtzeRivertravelsthefarthestinChinaandisabout6,300kilometreslong.大数字读法:Let’slearn.1100090000006,300eleventhousandninemillionsixthousandthreehundred大数字读法:Let’slearn.213,458,848.86thousandtwohundredandthirteenmillionfourhundredandfifty-eightthousandeighthundredandforty-eight

pointeightsixpointeightsix小数部分逐个读出每个数字million大数字读法大数字读法:Let’slearn.从右往左,三位一截,每截都按三位数读截完加单位:billion/thousand/millionand用在百十间,小数数字逐个读Let’sread.阿拉伯数字英语表达153

2020.35106708643007080000onehundredandfifty-threetwothousandandtwentypointthreefivetenthousand,sixhundredandseventyeighthundredandsixty-fourthousand,threehundredsevenmillion,eightythousand03PracticeWriteorspelloutthenumbers.4b1.MountKilimanjarois______(fivethousand,eighthundredandninety-five)metreshigh.2._______(twenty-fivethousand,sevenhundredandsixty-eight)cubicmetresofwaterpoursdownIngaFallseachsecond.3.TheEastAfricanRiftValleyisabout4,000(____________)mileslong.4.TheTaklimakanDeserthasatotalareaofabout337,000(___________________________________)squarekilometres.589525768fourthousandthreehundredandthirty-seventhousand高度体积长度面积MountQomolangmaSaharaDesertDeadSeaMarianaTrenchYangtzeRiverNileRiverGreatBarrierReef4166,3006,67111,000345,0008,848.869.000,000Let’smatchandmakeupsentences.metershighsquarekilometersmetersbelowsealevelkilometerslongkilometerslongmetersdeepsquarekilometersMountQomolangmais8,848.86metershigh.Completethepassagewiththecorrectformsofthewordsinthebox.4clarge amazing far close loudMyfriendsandIvisitedVictoriaFallsinAfricalastyear.Visitingoneoftheworld’s_______waterfallswasamagicalexperience.Aswewent______tothefalls,thenoiseofthewaterslowlygrew________andlouder.Then,rightbeforeoureyes,thewaterfallappeared.Itwentonforas____astheeyecouldsee.Later,wesatinaspecialpoolatthetopofthefalls.There,wefeltthewaterrushpastusandbecomeapartofthewaterfall.Itwasthescariestbutalsothe____________experienceofourtrip!largestcloserlouderfarmostamazing04ProductionWhatdoyouknowaboutthedeepsea?Completethesentenceswiththeinformationfromthepicture.2aA:Whatisthehighestplaceinourcity/town/village?B:Itis...A:Howhighisit?B:Itis...metres.A:Whichparkisbigger,...or...?B:...isbigger.A:Howlargeisit?B:Itis...squarekilometres.Writesomequestionstocompareplaces.Thenaskapartneryourquestions.4dWhatisthehighest...?Whichparkisbigger,…or...?It’sMountQomolangma.What’sthehighestmountainintheworld?Howhighisit?It’s...05ExercisesIf________peopledrivecars,therewillbe________airpollution.A.more;less B.much;less C.fewer;less D.less;fewer2Ofallthestudentsinhisclass,WangLinwrites________.A.mostcarefully B.mostcarefulC.morecarefully D.morecareful3ThenewsleepertrainsbetweenHongKongandBeijingmaynotbe________,butthey’rethemostcomfortable.A.slower B.thefastest C.theslowest D.faster1Multiplechoice.用单词的适当形式填空。1

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