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Unit7What’sthehighestmountainintheworld?Grade8第一课时RevisionTaskone:wordsgameandthecomparative(1)askandanswer(thefasterandcorrectonegetthehighergrades)(2)reviewtheformsofcomparativeTasktwo:exercisestalllongdeepnicehappybusypopularbeautifulfatbigthinhotgoodbad/illmany/muchlittlefar规则变法：1.2.3.4.不规则变法：好，坏，多，少，老，远Taskthree:grammar——superlative规则变法：1.一般形容词或副词后加-est./st.tallestlongestnicest2.常见双写尾字母加-est:fattestbiggestthinnesthottest3.多音节词前加mostmostpopularmostbeautiful不规则形式：好，坏，多，少，老，远。good——bestbad/ill——worstmany/much——mostlittle——leastold——eldestfar——furthest-ThetopoftheworldMakeyourownsentencesThebiggestbreadoftheworld13.43mand1168kgTheshortesthorseisunderthetallestone2/2/2020It’s8844.43high,thehighestintheworld.It’s26kilometerslong.QomolangmaIt’s8844.43high,thehighestintheworld.It’s26kilometerslong.TheCaspianSeaTheCaspianSeaisthebiggestlakeintheworld.ItliesintheborderbetweenAsiaandEurope.TheSaharaTheSaharaisthebiggestdesertintheworld.ItislocatedinthenorthernAfrica2/2/2020TheNileTheNileisthelongestriverintheworld.It’smorethan6600kilometerslong.2/2/2020TheYangtzeRiverTheYangtzeRiveristhethirdlongestriverintheworld,thefirstAsianrivers.It’s6211.31kilometerslong.1bListenandcompletethesentences2/2/20201.Qomolangmais______thananyothermountainintheworld.2.TheSaharais____________desertintheworld.3.TheCaspianSeais____________ofallthesaltlakes.4.TheNileis_________riverintheworld.higherthebiggestthedeepestthelongest2bListenagainandfillintheblanksin2awiththenumbersinthebox.2/2/20206,3005,0005,464300___TheYangtzeRiverisabout_______kilometerslongandtheYellowRiveris______kilometerslong.___Chinahasthebiggestpopulationintheworld.It’salotbiggerthanthepopulationoftheUS.___Chinaisover______yearsold.IthasamuchlongerhistorythantheUS.TheUSisnotevenyearsold.___ChinaisalmostasbigastheUS,butitisthebiggestcountryinAsia.6300546450003002/2/2020practiceMakeconversationsWorkinpairsandmakeyourownconversations.Youcandoitlikethis:A:Wehavelearnedsomethingaboutthetopoftheworld.B:That’sinteresting!Socanyoutellmethelongestriverintheworld?A:It’stheNile.B:Howlongisit?A:It’smorethan6600kilometerslong.Homework1.Usethesuperlativetotalkaboutwhatyouhavelearnedwithyourparentsorfriends.2.Memorizethenewwords.3.Fillintheblanks.