八年级英语下册lesson38课件VIP免费

LearningAims:1.Master:land,Europe,America,Ocean,Pacific,Atlantic,Indian,Arctic,earth,surface,river2.Understand:continent,Antarctica,thePacificOcean,theAtlanticOcean,theIndianOcean,theArcticOcean,Nile3.Using:three-quarters,one-fifth,one-thirdlandoceanAsiaEuropeNorthAmericaSouthAmericaAfricaAntarcticaOceaniaThecontinentsoftheworldtheAtlanticOceantheIndianOceanTheArcticOceanThePacificOceantheoceansoftheworld1.Thereare________continentsintheworld.Theyare_______________________________________________________________________________________.2.Thereare_______oceansintheworld.Theyare__________________________________________________________________________________.sevenfourAsia,Europe,Africa,NorthAmerica,SouthAmerica,OceaniaAntarcticathePacificOcean,TheArcticOceantheAtlanticOceantheAtlanticOcean1.In2000,theworld’spopulationis_____________.By2025,theworldwillhave_____________people.2.About____________oftheworldisland.3.Oceanscoverabout_________________oftheearth’ssurface.4.Desertscover________________oftheearth’ssurface.5.Theworld’sbiggestislandis____________.Thecoldestandthedriestcontinentintheworldis_____________.6.Thelongestriverintheworldis_______________.sixbillion7.8billionone-fourththree-quarterstwentypercentGreenlandAntarcticTheNileRiverTheworldIknowI.Choosethebestanswers:()1.____ofthestudentsarefromthecountryside.A.ThirdquarterB.ThreequartersC.ThreequarterD.Thirdquarters()2.Aquarterofthestudents____lettheirbooksathome.A.areB.isC.haveD.has()3.TheYellowRiveris______inChina.A.secondlongestriverB.thesecondlongestriverC.thesecondlongestriversD.thelongestriverLet’sdotheexercises:BACII.Fillintheblanks.1.Theywillbethere_________________(在周末以前）.2._______________(四分之三)oftheapplesaregreen.3.Milk_____________(对……有益）yourhealth.4.Theworld_____________(由……组成）manydifferentkindsofplaces.bytheweekendThreequartersbegoodforismadeupof