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Ourtaskstoday1.Talkaboutgeographyandnature2.Readnumbers.Eg:9,600,0003.Comparativeandsuperlativedegree比较级和最高级Ourhomeland,China.Chinahasthelongestwall,Chinahasthethirdlongestriver,Chinahastheriverwhichhasthemostsand,Chinaisthethirdbiggestcountry,Chinahaslargerpopulationthananyothercountry.theGreatWall.theYangtzeRiver.theYellowriver.9,600,000squarekilometersinsize.1,300,000,000Period1Unit7What’sthehighestmountainintheworld?Let’stalk!•Whatdowelearninageographyclass?geographyQomolangmamountainTheNilerivertheCaspianSeasaltlakeTheSaharadesertthePacificOceanoceanGeographicalfacts地理常识thelongestriver(has)thebiggestpopulationthehighestmountainthebiggestcountrythebiggestdesertthebiggestsaltlakethebiggestoceanthebiggestcontinent1.TheNile2.TheAmazonRiver3.YangtzeRiver1.Russia2.Canada3.ChinaTheSaharaTheCaspianSeaAsiaThePacificOceanChinaQomolangma[ˌdʒi:ə'ɡræfɪkl]8,844metershigh6,671kilometerslong1,025metersdeep9,600,000squarekilometersinsizeQomolangmatheCaspianSeaTheSaharaTheNileLet’sreadnumbers2.3451656,671600,0009,600,0001,300,000,000twopointthreeforty-fiveonehundredandsixty-fivesixthousandsixhundredandseventy-onesixhundredthousandninemillionsixhundredthousandonebillionthreehundredmillionbillion十亿million百万thousand千111,121,435,678111,121,435,678billionmillionthousandonehundredandelevenbilliononehundredandtwenty-onemillionfourhundredandthirty-fivethousandsixhundredandseventy-eight十亿的读法Readthenumber!•4,698•26,471,904,758•27,644•9,237,586•5.4•176,934,524,456•389•298,503•28,596,738•90Groupwork:Writedownsomenumbersandaskyourgroupmatestoreadit.No.1-No.4No.2-No.32米长1米宽150米高1125米深1.5米厚9,600,000平方公里twometerslongonemeterwideonehundredandfiftymetershighonethousandonehundredandtwenty-fivemetersdeeponepointfivemetersthick数词+单位+形容词(long,wide,high,deep,thick)面积：数词+单位+insizeninemillionsixhundredthousandsquarekilometersinsize1bListenandcompletethesentences.1.Qomolangmais______thananyothermountainintheworld.2.TheSaharais____________desertintheworld.3.TheCaspianSeais____________ofallthesaltlakes.4.TheNileis___________riverintheworld.higherthebiggestthedeepestthelongestanyother+n单数比较级1.Myhairislongerthan______.她2.Theweatherisgetting____and____(warm)3.The____(old)Iget,the_____(weak)Iseemtofeel.4.Qomolangmaishigherthananyother______intheworld.(山)5.It’sraining,anditismuch______.(cold)herswarmerwarmerolderweakermountaincolder比较前后一致比较级and比较级：越来越……the比较级，the比较级：越……越……比较级表示最高级much,alot,alittle,abit,even+比较级最高级1.Summeris_________(hot)seasonoftheyear.2.TheChangjiangRiverisoneof___intheworld.A.thelongestriverB.longestriversC.thelongestriversD.longerrivers3.TheYangtzeRiveris______________riverintheworld.(第三长)thehottestCthethirdlongest双写加er,est：hot,big,wet,thin,fat最…之一oneofthe最高级+n复数第几长,高,宽…the+序数词+最高级