Whatcanariverbringus?1,Rivercanprovideuswithdrinkingwater2,Wecanusearivertwashdifferentthingskikeclothes,vegetables3,Wecangetfishfromariver4,Ourcropsandplantsneedtobewatered5,WatercanusedtomakeaelectricityUnit3Topographical:Waterfall:ahighplacefromwhichariversuddenlygoesdown.Rapids:afast-movingpartofariverValley:alonglowwideplacebetweenhillsDelta:thelowplacewhereariverenterstheseaGlacier:alargebodyoficemovingslowlydownahighvalleyPlain:alargeflatplaceCanyon:adeep,verywidevalley,usuallywithariverRapidsValleyDeltaGlacierPlainCanyonNewWords:1,finally:最后2,cycle:骑自行车3,persuade:劝说,说服4,stubborn:顽固的5,insist:坚持,强调6,source:来源,水源7,proper(ly):恰当的,适当的8,detail:细节,详情9,determine:决定,确定determined:坚决的10,altitude:海拔高度,高处11,atlas:地图,地图集12,Tibetan:西藏的,藏族的TrueorFalse?1,WangKungfirsthadtheideatocyclealongtheMekong.2,WangKungandWangWeihavehadthedreamtocyclealongtheMekongsincemiddleschool.3,TheydecidedtobegintheirtripfromthesourceoftheMekong.4,WangWeididn’tthinkmuchaboutthedifficultyofthetrip.Questions:1,WhoareDaWeiandYuHang?2,WhereisthesourceoftheMekongRiver?3,WhichseadoestheMekongenter?4,IsitadifficultjourneyalongtheMekongRiver?Why?5,IsWangKungveryeagerforthetrip?