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1、Period1Unit7What’sthehighestmountainintheworld?SectionA1a---2c海阳二中余时芳OurtaskstodayTalkaboutgeographyandnatureReadnumbers.Eg:9,600,000Comparativeandsuperlativedegree比较级和最高级Newwordssquare[skweə]n.平方；正方形；广场;面积meter['mi:tə(r)](=metre)n.米；公尺deep[di:p]adj.深的；纵深的Qomolangma['
2、tʃəʊməʊ,la:ŋmə]珠穆朗玛峰theNile[naɪl]尼罗河theSahara[sə'ha:rə]撒哈拉沙漠theCaspian['kæspɪən]sea里海（世界最大的咸水湖）desert['dezət]n.沙漠geographicaladj.地理学的，地理的[ˌdʒi:ə'ɡræfɪkl]Ourhomeland,China.Chinahasthelongestwall,Chinahasthethirdlongestriver,Chinahastheriverwhichhasthemostsand,Chinaisth
3、ethirdbiggestcountry,Chinahaslargerpopulationthananyothercountry.theGreatWall.theYangtzeRiver.theYellowriver.9,600,000squarekilometersinsize.1,300,000,000Let’sreadnumbers2.3451656,671600,0009,600,0001,300,000,000twopointthreeforty-fiveonehundredandsixty-fivesixthousan
4、dsixhundredandseventy-onesixhundredthousandninemillionsixhundredthousandonebillionthreehundredmillionbillion十亿million百万thousand千111,121,435,678111,121,435,678billionmillionthousandonehundredandelevenbilliononehundredandtwenty-onemillionfourhundredandthirty-fivethousan
5、dsixhundredandseventy-eight十亿的读法Readthenumber!4,69826,471,904,75827,6449,237,5865.4176,934,524,456389298,50328,596,738902米长1米宽150米高1125米深1.5米厚9,600,000平方公里twometerslongonemeterwideonehundredandfiftymetershighonethousandonehundredandtwenty-fivemetersdeeponepointfivemet
6、ersthick数词+单位+形容词(long,wide,high,deep,thick)面积：数词+单位+insizeninemillionsixhundredthousandsquarekilometersinsizeLet’stalk!Whatdowelearninageographyclass?geographyQomolangmamountainQomolangmaisthehighestmountainintheworld.It’s8,844.43metershigh/inheight.TheNileriverTheNi
7、leisthelongestriverintheworld.It’s6,671kilometerslong/inlength.theCaspianSeasaltlakeTheCaspianSeaisthedeepestsaltlakeintheworld.It’s1,025metersdeep/indepth.TheSaharadesertTheSaharaisthebiggestdesertintheworld.What’sthesizeofit?It’sabout9,600,000squarekilometersinsize.
8、thePacificOceanoceanTheCaspianSeaisthedeepestsaltlakeintheworld.It’s1,025metersdeep/indepth.Geographicalfacts地理常识thelongestr
