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1、Unit7What’sthehighestmountain intheworld?Class:Class1,Grade8Teacher:ZhangYiSectionA(1a-1c)Game“Canyoucountnumbers?”Rules（规则）:个位与十位之间用“-”连接，十位与百位之间用“and”连接，百位与千位之间用“，”连接，小数点“point”/pっint/。6,671sixthousand,sixhundredandseventy-one4.43fourpointfourthreesixthousand,threehundred300threeh
2、undredfivethousandfivethousand,fourhundredandsixty-fouronethousandandtwenty-fiveeightthousand,eighthundredandforty-fourpointfourthreeninethousand,sixhundredthousand5,0008,844.431,0255,4646,3009,600,0002meterslong1meterwide1meterhighHowlong(多长)isthetable?It’s2meterslong.(长2米)1meterwi
3、de.(宽1米)1meterhigh.(高1米)125metersdeepHowdeep(多深)isit?ItisHowwide(多宽)Howhigh(多高)在英语中表示“事物的长、宽、高、深……等时”,表达式为：基数词+度量名词(meter/kilometer…)+形容词(long/wide/high/deep…)125metersdeep.(深125米)Doyouknowtheseinterestingplaces?Let’straveltotheseplaces.QomolangmaQomolangmarunsalongtheborder(边界)betw
4、eenChinaandNepal(尼泊尔).Itiscoveredwithsnowalltheyearround.It’s8844.43high,It’sthehighestintheworld.theNileTheNileisthelongestriverintheworld.It’s6,671kilometerslong.Itrunsthrough9countriesandrunsintotheMediterraneanSea(地中海)intheend.TheCaspianSeaisthedeepestsaltlake(盐湖)intheworld.It’s
5、1,025metersdeep.Itliesin(位于)theborder(边界)betweenAsia(亚洲)andEurope(欧洲).theCaspianSeatheSaharaTheSaharaisthebiggestdesertintheworld.It’s9,600,000squarekilometers(平方千米)insize.ItliesinthenorthernAfrica(非洲北部).Climateconditions(气候条件)areverybad.Itisoneoftheearth’smostunsuitable(不适宜的)places
6、forbiologicalsurvival(生物生存).Qomolangma珠穆朗玛峰theNile尼罗河theSahara撒哈拉沙漠theCaspianSea里海squarekilometer平方千米deepadj.深的；纵深的desertn.沙漠Asian.亚洲Europen.欧洲African.非洲NewWordsTalkaboutthesepicturesinpairs.---What’sthehighestmountainintheworld?thelongestriverthedeepestsaltlakethebiggestdesert---Th
7、e….---Howhigh/long/deep/bigisit?---It’s….theSahara9,600,000squarekilometersinsizetheCaspianSea1,025metersdeeptheNile6,671kilometerslongQomolangma8,844.43metershigh形容词最高级的构成(规则变化)1.直接在词尾加-est如：high—highest2.以不发音的字母e结尾的，在词尾加-st如：large—largest3.以“辅音字母+y”结尾的，把y变i,再加-est如：easy—easiest4.以
8、辅音字母结尾的重读闭音节，双写最后一个
