Unit7+SectionA+1a-2d++課件【知識點睛+備課精研】 人教版八年級英語下冊

人教版英語

Unit7What’sthehighestmountainintheworld?SectionA

1a-2d人教版英語1.Rememberthekeywords,phrasesandsentences.

square,meter,deep,desert,population,Asia,tour,tourist,wall,amazing,ancient,protect,wide,man-made,feelfree,asfarasIknow,insize背誦重點詞匯，短語【重點】2.Tolearntousecomparativesandsuperlativeswithadjectivesandadverbs.學(xué)習(xí)使用形容詞和副詞的比較級和最高級【重點，難點】Learninggoalshundred百thousand千million百萬billion十億1,764,600,220Leadin規(guī)則：從前往后，每三位一劃分，百位后面加andonebillion,sevenhundredand

sixty-fourmillion,sixhundredthousand,twohundredandtwentyHowdoyoureadlargenumbers?Canyoureadtheselargenumbers?9,600,0001,0256,6718,844.43ninemillion,sixhundredthousandonethousandand

twenty-fivesixthousand,sixhundredand

seventy-oneeightthousand,eighthundredand

forty-fourpointfourthreeLeadinhundred百thousand千million百萬billion十億point點這些數(shù)字是描述誰的？QomolangmatheNiletheCaspianSeatheSaharathehighestmountainintheworldDoyouknow?thelongestriverintheworldthebiggestlakeintheworldthebiggestdesert(沙漠)intheworldLeadinMatchthefactsyouknow.1aQomolangmaAbout9,600,000square

kilometersinsizeTheSahara1,025metersdeepTheCaspianSea6,671kilometerslongTheNile8,844.43metershighPre-listening你能總結(jié)長、寬、高、深、面積的表達結(jié)構(gòu)嗎？

數(shù)字+單位詞+形容詞（long,wide寬的,high,deep深的）=數(shù)字+單位詞+in+名詞（length長度,width寬度,height高度,depth深度,size）Theriveris20meterswide.=Theriveris20metersinwidth.這條河寬20米【拓展】作定語時用：“數(shù)詞–單位詞單數(shù)–形容詞”This20-meter-wideriverisnearourschool.這條20米寬的河流在我們學(xué)校附近。平方metern.米adj.深的在大小/尺寸方面千米Qomolangmais_____________thananyothermountainintheworld.TheSaharais_____________desertintheworld.TheCaspianSeais_______________ofallthesaltlakes.TheNileis_________________riverintheworld.Listenandcompletethesentences.1bhigherthe

biggestthedeepestthelongestn.沙漠While-listening注意聽前讀句子，預(yù)測空格內(nèi)容。鹽水湖Post-listeningListenandread.(P.103)Teacher:Yesterday,welearnedsomeimportantgeographical

facts.Ihopeyouallstillrememberthem.I'mgoingtotestyounowbyaskingafewquestions.First,what'sthehighestmountainintheworld?Boy1:Qomolangma!It'shigherthananyothermountainintheworld.Teacher:That'sright.AndwhocantellmewhattheSaharais?Girl1:TheSaharaisthebiggestdesertintheworld.Teacher:Verygood.Andwhichisthedeepestsaltlakeintheworld?Girl2:TheCaspianSeaisthedeepestofallthesaltlakes.Teacher:You'reallsosmart!Now,forthelastquestion,whichisthelongestriverintheworld?Boy2:Iknow!TheNileisthelongestriverintheworld.Boy1:AndtheAmazonisthesecondlongestriverintheworld.Teacher:Itseemsthatyouknowtheanswerstoallmyquestions.Goodjob!找出包含比較級、最高級的句子地理的事實通過theanswertoA:A的答案the+序數(shù)詞+最高級：第幾……的比較級表達最高級含義

比較級+than+anyother+可數(shù)名詞單數(shù)：“比其他任何都...”=比較級

+than+theother+

可數(shù)名詞復(fù)數(shù)：=最高級+可數(shù)名詞單數(shù)尼羅河比世界上其他任何一條河都長。TheNileislongerthananyotherriverintheworld.=TheNileislongerthantheotherriversintheworld.=TheNileisthelongestriverintheworld.—DoyouknowXinjiangis______inChina?—Yes,it’sbiggerthan______cityinChina.A.thebiggestcity;anyB.thebiggestcity;theotherC.thebiggestcity;anyotherC6,3005,0005,465300Readthenumbers.sixthousandand

threehundredfivethousandfivethousand,fourhundredand

sixty-fivethreehundredPre-listeninghundred百thousand千million百萬billion十億point點Listenandnumberthefacts[1-4]intheorderyouhearthem.2a6,300 5,000 5,464 300____TheYangtzeRiverisabout________kilometerslongandtheYellowRiveris________kilometerslong.____Chinahasthebiggestpopulationintheworld.It’salotbiggerthanthepopulationoftheUS.____Chinaisover________yearsold.IthasamuchlongerhistorythantheUS.TheUSisnoteven________yearsold.____ChinaisalmostasbigastheUS,anditisthebiggestcountryinAsia.4213Asia

亞洲Asian亞洲的，亞洲人長江While-listening注意聽前讀句子，留下印象人口Listenagainandfillintheblanksin2awiththenumbersinthebox.2b6,300 5,000 5,464 300____TheYangtzeRiverisabout________kilometerslongandtheYellowRiveris________kilometerslong.____Chinahasthebiggestpopulationintheworld.It’salotbiggerthanthepopulationoftheUS.____Chinaisover________yearsold.IthasamuchlongerhistorythantheUS.TheUSisnoteven________yearsold.____ChinaisalmostasbigastheUS,anditisthebiggestcountryinAsia.6,3002135,4645,0003004While-listening直接寫數(shù)字即可Listenandread.(P.103)Post-listeningMike：Hi,I’mMike.I’mfromtheUnitedStates.Boy：Welcometoourclass,Mike.We’rehappytomeetyou.Mike：CanyoutellmeabitmoreaboutChina?Girl：Sure!DidyouknowthatChinaisoneoftheoldestcountriesintheworld?It’sover5,000yearsold.Mike：Yes,Idid.It’smucholderthanmycountry—infact,theUnitedStatesisoneoftheyoungestcountriesintheworld.It’snoteven300yearsold.Boy：AndChinahasthebiggestpopulation,too.It’salotbiggerthanthepopulationoftheUnitedStates.Mike：ButChinaisaboutthesamesizeastheUS,right?Girl：Yes,andit’sthebiggestcountryinAsia.Wealsohavesomefamousrivers.TheYangtzeRiveristhelongestriverinAsia.It’sabout6,300kilometerslong.Mike：Wow!Ididn’tknowthat.IthoughttheYellowRiverwaslonger.Boy：No,theYellowRiveris5,464kilometerslong.ButbothriversareveryimportanttoChina.找出比較級、最高級的句子；找出修飾比較級程度的詞修飾比較級：abit,alittle,much,alot,evenoneof+the+最高級+名詞復(fù)數(shù)：最...的之一人口population的用法1.意為“人口”，集體名詞，謂語動詞用單數(shù)。Thepopulationoftheworldisgrowingfasterandfaster.世界人口增長得越來越快。2.詢問A有多少人口:

WhatisthepopulationofA?=HowmanypeoplearethereinA？3.表示A有....人口：

Ahave/hasapopulationof+數(shù)詞=thepopulationofAis+數(shù)詞Chinahasapopulationof1.4billion.中國有14億人。

=ThepopulationofChinais1.4billion.4.表示人口的“多”和“少”：large/big，small。Indiahasalargepopulation.印度人口眾多。Canyoufindanymistakesintheunderlinedsentences?

Guide:Feelfreetoaskmeanythingontoday'sGreatWalltour.Tourist1:Howlongisthewall?Guide:Ah,mostpopularquestion!

Ifwe'reonlytalkaboutthepartsfromtheMingDynasty,it'sabout8,850kilometerlong.Thismakeitthelongestwallintheworld.Tourist2:Wow,that'samazed!Whydidtheancientemperorsbuildthewall?Guide:Themainreasonwastoprotecttheirpartofthecountry.Asyoucansee,it'squitetallandwide.AsfarasIknow,therearenootherman-madeobjectsasbiggerasthis.Tourist3:IsBadalingpartoftheMingGreatWall?Guide:Yes,it'sthemostfamouspart.talkingthekilometersmakesamazingbigGuide:Feelfreetoaskmeanythingontoday'sGreatWall

tour.Tourist1:Howlongisthewall?Guide:Ah,themostpopularquestion!Ifwe'reonlytalkingaboutthepartsfromtheMingDynasty,it'sabout8,850kilometerslong.Thismakesitthelongestwallintheworld.Tourist2:Wow,that'samazing!Whydidtheancientemperorsbuildthewall?Guide:Themainreasonwastoprotecttheirpartofthecountry.Asyoucansee,it'squitetallandwide.AsfarasIknow,therearenootherman-madeobjectsasbigasthis.Tourist3:IsBadalingpartoftheMingGreatWall?Guide:Yes,it'sthemostfamouspart.Readandtranslatetheconversation.2d導(dǎo)游可以隨便做某事長城n.&v.旅行游客墻朝代adj.令人驚奇的adj.古代的；古老的保護正如相當(dāng)寬的就我所知adj.人造的物品一部分amazed

adj.感到驚奇的amazev.使驚奇amazing

adj.令人驚奇的protect的用法1.protectsth.保護某物

2.