Unit7SectionA(1a2c)課件人教版八年級(jí)英語(yǔ)下冊(cè)

大單元整體項(xiàng)目式教學(xué)：通過(guò)本單元的學(xué)習(xí)，完成保護(hù)世界瑰寶、中國(guó)瑰寶或家鄉(xiāng)瑰寶的演講稿。1.感受世界瑰寶之魅力：感受自然之美和動(dòng)物之秀，以聽說(shuō)輸入為主；2.探尋世界瑰寶之奧秘：對(duì)與珠峰和熊貓相關(guān)的多學(xué)科知識(shí)進(jìn)行“探究”，同時(shí)學(xué)習(xí)和鞏固相關(guān)語(yǔ)法知識(shí)；3.推廣世界瑰寶之傳承：推廣自己小組要保護(hù)的世界瑰寶、中國(guó)瑰寶或家鄉(xiāng)瑰寶，進(jìn)行演講，呼吁更多人保護(hù)大自然環(huán)境和動(dòng)物。Unit7What’sthehighestmountainintheworld?SectionA1a-2c123掌握本課時(shí)詞匯：square,meter,deep,desert,population,insize…能夠聽懂并談?wù)撟匀坏乩淼木涫剑篧hat’sthehighestmountainintheworld?,了解到我國(guó)和世界上一些“自然地理之最”。（學(xué)習(xí)理解）聽懂有關(guān)談?wù)撟匀坏乩淼脑掝}，能夠運(yùn)用目標(biāo)句式就“自然地理之最”展開對(duì)話，能夠聽懂并表達(dá)較大的數(shù)字來(lái)更準(zhǔn)確的介紹相關(guān)地理知識(shí)；能夠熟練運(yùn)用形容詞的比較級(jí)和最高級(jí)對(duì)事物進(jìn)行描述。（應(yīng)用實(shí)踐）通過(guò)對(duì)中國(guó)以及世界相關(guān)地貌信息的描述和談?wù)?，引?dǎo)學(xué)生拓展掌握一些世界之最的地理知識(shí)；同時(shí)培養(yǎng)學(xué)生親近自然、關(guān)愛自然、保護(hù)自然的情感態(tài)度。（遷移創(chuàng)新）Whichmountainishigherthananyotherintheworld?Whichdesertisthelargestdesertintheworld?

Whichriveristhelongestriverintheworld?Qomolangma.TheNile.TheCaspianSea.TheSahara.Whichisthedeepestsaltlakeintheworld?QomolangmaIt's8,848.86meters

high.It's8,848.86

meters

inheight.eightthousandeighthundredandforty-eightpointeightsixHowhighisit?thehighestmountainintheworldtheNileHowlongisit?It's6,671

kilometers

long.It's6,671

kilometers

inlength.sixthousandsixhundredandseventy-onethelongestriverintheworldthedeepestsaltlakeintheworldHowdeepisit?It's1,025

meters

deep.It's1,025

meters

indepth.onethousandandtwenty-fivetheCaspianSeatheSaharathebiggest

desert

intheworldHowbigisit?It'sabout9,000,000

square

kilometersinsize.Ithas/covers

9,000,000

squarekilometers.ninemillion1,034,507,890.12Howtoreadlargenumbers?

pointthousandmillionbillionandandonetwo1.要讀一組長(zhǎng)數(shù)字，可以先把這組數(shù)字分3個(gè)數(shù)字一組用逗號(hào)隔開。2.把長(zhǎng)數(shù)字分為3個(gè)數(shù)字一組，用逗號(hào)隔開，從右到左，把第一個(gè)逗號(hào)看作thousand，第二個(gè)逗號(hào)看作million,第三個(gè)逗號(hào)是billion。英語(yǔ)里沒(méi)有萬(wàn)和十萬(wàn)的表達(dá)，一萬(wàn)：tenthousand十萬(wàn)：onehundredthousand3.“and”在十位數(shù)和百位數(shù)之間出現(xiàn)，百位數(shù)沒(méi)有數(shù)字時(shí)，thousand和十位數(shù)之間，and不省略4.小數(shù)點(diǎn)后面的數(shù)字按單個(gè)讀。Matchthefactsyouknow.1aQomolangmatheNiletheCaspianSeatheSaharaabout9,000,000squarekilometersinsize1,025metersdeep6,671kilometerslong8,848.86metershigh=indepth=inlength=inheight

數(shù)字+單位詞+形容詞（long,wide,high,deep）=數(shù)字+單位詞+in+名詞（length,width,height,depth,size）長(zhǎng)、寬、高、深、面積的表達(dá)方法Theriveris20meterswide.=Theriveris20metersinwidth.基數(shù)詞+單位詞+形容詞（long,wide,high,deep等）基數(shù)詞+單位詞+in+名詞（length,width,height,depth,size等）【拓展延伸】作定語(yǔ)時(shí)用合成詞“數(shù)詞-單位詞單數(shù)–形容詞”。Liangliangisan11-year-oldboy.Qomolangmais_____________thananyothermountainintheworld.TheSaharais_____________desertintheworld.TheCaspianSeais_______________ofallthesaltlakes.TheNileis_______________riverintheworld.higherthe

biggestthedeepestthelongestListenandcompletethesentences.1b=thehighestmountain=biggerthananyotherdesert=deeperthananyothersaltlake=longerthananyotherriver最高級(jí)：the+形容詞/副詞最高級(jí)+單數(shù)名詞=形容詞、副詞比較級(jí)+than+anyother+單數(shù)名詞Qomolangmaishigherthananyothermountainintheworld.比較級(jí)+thananyother+可數(shù)名詞單數(shù)Point該結(jié)構(gòu)意為“比其他任何一個(gè)……都……”，指同一范圍內(nèi)比較，表示最高級(jí)含義。Sheisthinnerthananyotherstudentinherclass.=Sheisthethinnestinherclass.other必不可少，用以將主語(yǔ)從比較對(duì)象中排除，避免邏輯矛盾。如果比較對(duì)象不在同一范圍內(nèi)或不屬于同一類別，應(yīng)用“形容詞/副詞比較級(jí)+thanany（任何的）

+可數(shù)名詞單數(shù)”。ThePacificOceanislargerthananylakeintheworld.練一練Hulunbuirisbiggerthan_____________cityinChina.Hulunbuirisbiggerthan_____________cityinAnhui.anyotheranyHi,Patrick!Whatareyoudoingthesedays?Oh,Iamtravelingaroundtheworld.Howexciting!Whatisthehighestmountainintheworld?It’sQomolangma.HowhighisQomolangma?It's8,848.86metershigh.Usetheinformationin1btomakeconversations.1cQomolangmatheNiletheCaspianSeatheSaharaHowmuchdoyouknowaboutChina?1.HowoldisChina?It’sover5,000yearsold.2.What’sthelongestriverinChina?TheYangtzeRiver.3.What’sthelongestwallinChina?TheGreatWall.4.What’sthebiggestdesertinChina?Taklimakandesert.5.What’sthebiggestwaterfallinChina?HuangguoshuWaterfall.HowmuchdoyouknowaboutChina?Listenandnumberthefacts[1-4]intheorderyouhearthem.6,300 5,000 5,464 300____TheYangtzeRiverisabout________kilometerslongandtheYellowRiveris________kilometerslong.____Chinahasthebiggestpopulationintheworld.It’salotbiggerthanthepopulationoftheUS.____Chinaisover________yearsold.IthasamuchlongerhistorythantheUS.TheUSisnoteven________yearsold.____ChinaisaboutthesamesizeastheUS,anditisthebiggestcountryinAsia.42132ariverspopulationhistorysize6,300 5,000 5,464 300____TheYangtzeRiverisabout________kilometerslongandtheYellowRiveris________kilometerslong.____Chinahasthebiggestpopulationintheworld.It’salotbiggerthanthepopulationoftheUS.____Chinaisover________yearsold.IthasamuchlongerhistorythantheUS.TheUSisnoteven________yearsold.____ChinaisaboutthesamesizeastheUS,anditisthebiggestcountryinAsia.42132bListenagainandfillintheblanksin2awiththenumbersinthebox.6,3005,4645,000300Chinahasthebiggestpopulationintheworld.population

集體名詞，“人口；人口數(shù)量”，

無(wú)復(fù)數(shù)形式。作主語(yǔ)時(shí)，謂語(yǔ)動(dòng)詞用第三人稱單數(shù)形式。thepopulationof“……的人口數(shù)量”，人口“多”用large或big來(lái)修飾；

人口“少”用small來(lái)修飾。分?jǐn)?shù)或百分?jǐn)?shù)修飾population作主語(yǔ)時(shí)，謂語(yǔ)動(dòng)詞常用復(fù)數(shù)形式。詢問(wèn)人口數(shù)量：

What’sthepopulationof…?Howlargeisthepopulationof…?

不能用howmany或howmuch提問(wèn)。你家鄉(xiāng)的人口是多少？（翻譯句子并寫出同義句）What’sthepopulationofyourhometown?_________________________________________Howlargeisthepopulationofyourhometown?4.DidyouknowthatChinaisoneoftheoldestcountriesintheworld?賓語(yǔ)從句表示的內(nèi)容是客觀事實(shí)、真理或自然現(xiàn)象等，從句要用一般現(xiàn)在時(shí)。Hetoldmethattheearthislargerthanthemoon.例：他告訴我地球比月球大。主句that

引導(dǎo)的賓語(yǔ)從句～～～～～～～～～～～～～～～～～～～～～～～～～～MakecomparisonsbetweenChinaandtheUS.Usingtheinformationin2a.GroupworkriverspopulationhistorysizeChinaismucholderthantheUnitedStates.1.Chinahasthebiggestpopulationintheworld.ItisalotbiggerthanthepopulationofAmerica.

2.

Chinais5,000yearsold.Itisoneoftheoldestcountries.

3.

Americaislessthan300yearsold.Itisoneoftheyoungestcountriesintheworld.

4.

TheYangtzeRiveristhelongestriverinChina.Itis6,300kmlong.

5.

TheYellowRiveristhesecondlongestriverinChina.Itis

5,464kmlong.

6.

ChinaisthebiggestcountryinAsia.ItisthesamesizeasAmerica.(ItisasbigasAmerica)ConfidentHistoricIntelligentNobleAmbitiousCHINAChina

is

a

country

with

a

long

history

and

rich

resources.Beproudofourmotherland!1.______allthemountains,Qomolangmaisthemostfamous.A.In B.On C.To D.Of2.Maryisshorterthan_____girlinherclass.A.anther B.theotherC.anyother D.others3.Yaomingis______tallerthanKobe.A.more B.much C.alotof D.less4.Thebuildingis_______.A.100-meter-hig