主讲人：窦菊梅主讲人：窦菊梅Lesson50TheWorldIsaBigPlace!1.increaseby…增加了…increaseto…增加到…eg.Lastterm,thestudentsinourclasswere48.Thisterm,thestudentsinourclasshaveincreasedby6to54.2.Europe:n.欧洲European:n.欧洲人(–s)；adj.欧洲（人）的3.America:n.美国，美洲American:n.美国人（–s）；adj.美国（人）的4.India:n.印度Indian:n.印度人（–s）；adj.印度（人）的5.数词﹢percent:百分之…AntarcticaEuropethePacificOceantheAtlanticOceantheIndianOceantheArcticOceanAfricaAsiaAustraliaNorthAmericaSouthAmericarivermountaindesertislandlakeoceanTheworldismadeupofmanydifferentkindsofplaces.Listenandanswerthesequestions:1.What’stheworld’sbiggestisland?2.What’stheworld’slongestriver?populationin2000yourconclusionby2025increaseby：increaseto：by2050increaseby：increaseto：landarea(面积)thenamesofthecontinentsoceansareathenamesofthemainoceansdesertshowmanyAretheygoodorbadforpeople？Why？thebiggestislandnameWhereisit？thelongestrivernameWhereisit？Knowourworld6billionWillbe7.8billionWillbe9.1billion1.8billion7.8billion1.3billion9.1billionThepopulationoftheworldisincreasingquickly.onethirdoftheworldAfrica,Europe,Asia,NorthAmerica,SouthAmerica,Australia,Antarcticathreequartersoftheearth’ssurfacethePacificOcean,theAtlanticOcean,theIndianOcean,theArcticOceancover20percentoftheearth’ssurfaceTheyarenotgoodforpeople.Theyaretoodry.GreenlandIt’snortheastofCanada.theNileRiverInAfrica.Homework:Weknowtherearesevencontinentsintheworld.Whichcontinentoftheworldinterestsyou？Writeareportaboutit.Youcantalkaboutitsplaces,countries,populationorotherimportantfacts.
