【最新】人教版八年级英语下册UnitSAad

Unit7What’sthehighestmountainintheworld?Let'senjoythejourneyaroundtheworld！Warmking-upGanshuQomolangma

--thehighestmountain珠穆朗玛峰--世界上最高的山峰theCaspianSea--thebiggestsaltlake里海--世界最大咸水湖LakeBaikal--thedeepestfreshwaterlake贝加尔湖--世界最深的淡水湖theAmazonRiver--thebiggestriver亚马孙河--世界最大河流theNile--thelongestriver尼罗河--世界最长河流theSahara--thebiggestdesert撒哈拉沙漠--世界最大沙漠highestlongestbiggestdeepestmountain山river河desert沙漠

saltlake咸水湖freshwaterlake淡水湖Wheredidwegojustnow?Wewenttotheintheworld.Presentationsquare

n.平方meter

n.米

[skweə]

[ˈmi:tə(r)]deepadj.深的desertn.沙漠[di:p]['dezət]Asia

n.亚洲populationn.人口[pɒpjʊ'leɪʃ(ə)n]['eɪʃə]tour

v.n.旅行touristn.旅行者wall

n.墙amazing

adj.令人惊叹的[tʊə]['tʊərɪst][wɔːl][ə'meɪzɪŋ]ancientadj.古代的wide

adj.宽的;宽阔的[ˈeɪnʃənt][waɪd]Doyoulikemath?4m

㎡4m

squaremetersinsize=1616

[skweə]

[ˈmi:tə(r)]35

thirty-five

23twenty-three30,000

thirtythousand9,600,000

ninemillionsixhundredthousand=ninepointsixmillion

1,025

onethousandandtwenty-five

6,671sixthousandsixhundredandseventy-one8,848.43

eightthousandeighthundredandforty-eightpointfourthree

isthesmallestnumber.

isthelargestnumber.

Doyouknowtheseplaces?/naɪl/

/ˈtʃəʊməʊˌlɑːŋmə/

/'kæpsiən//sə'hɑ:rə/thehighest

mountainthelongestriver

thedeepestsaltlake

thebiggestdesert

Whichis

thehighestmountain/thelongestriver/thebiggestdesert/thedeepestlakeintheworld?Talkaboutthesepicturesinpairs.A:

HowhighisQomolangma?B:It’s8,844.43metershigh.A:

HowbigistheSahara?B:It’sabout9,600,000squarekilometersinsize.A:

HowdeepistheCaspianSea?B:It’s1,025metersdeep.A:

HowlongistheNile?B:It’s6,671kilometerslong.总结：英语表示“有多长（宽，高…）”时，一般结构是:数词+数量单位+长(long)/宽(wide)/高(high)/深(deep)形容词。e.g.Thewallis1.7metreswide.1bListenandcompletethesentences.1.Qomolangmais______thananyothermountainintheworld.2.TheSaharais____________desertintheworld.3.TheCaspianSeais____________ofallthesaltlakes.4.TheNileis_________riverintheworld.higherthebiggestthedeepestthelongestIfyouareaguide导游，pleaseintroduce介绍

famousplacestothetourists游客.__________

isthelongestriverinChina.It’shigherthananyotherriverChina.It’s8,844.43metershigh.A:TheYangtzeRiverB:TheYellowRiverC:TheNileD:TheAmazonRiverChina

theUSDoyouknowanythingaboutthetwocountries?________hasthebiggestpopulationintheworld.________isbiggestcountryinAsia.________hasamuchlongerhistory.China

2aListenandnumberthefacts(1-4)intheorderyouhearthem.

___TheYangtzeRiverisabout____kilometerslongandtheYellowRiveris___kilometerslong.___Chinahasthebiggestpopulationintheworld.It’salotbiggerthanthepopulationoftheUS.___Chinaisover___yearsold.IthasamuchlongerhistorythantheUS.TheUSisnoteven___yearsold.___ChinaisalmostasbigastheUS,anditisthebiggestcountryinAsia.

42132bListenagainandfillintheblankswiththenumbersinthebox.6,3005,0005,464300___TheYangtzeRiverisabout______kilometerslongandtheYellowRiveris_______kilometerslong.___Chinahasthebiggestpopulationintheworld.It’salotbiggerthanthepopulationoftheUS.___Chinaisover_______yearsold.IthasamuchlongerhistorythantheUS.TheUSisnoteven______yearsold.___Chinaisal