Unit7Protecttheearth(StoryTime)ProtecttheearthSave(节约)waterSaveenergySavetreesDon'tusetoomuchplastic.Woodcomesfromtrees.Whatshouldwedo?听录音,为四段文本各写一个标题。能源Energycomesfromcoalandoil.Weshouldsavewater.Readandjudge•1.Waterisuseful,soweshouldnotwasteit.()•2.Weusewatertocleanthethingseveryday.()•3.Thereismuchwaterinmanyplaces.()•4.Weshouldnotreusethewater.()Howdowesavewater?Waterisuseful(有用的).Wedrinkwaterandusewatertocleanthingseveryday.Inmanyplaces,thereisnotmuchwater.Weshouldnotwastewater.Weshouldreuse(重复使用)andsaveit.Whyshouldwesavewater?用直线画出原因(Whydowesavewater?)虚线画出方法(Howdowesavewater?)Readandchoose•1..Mostoftheenergycomesfrom______.A.waterandsoil.B.coalandoil.•2.Weshould____________andweshouldnot_______________.saveenergy;drivesomuchdrivesomuch;saveenergycoaloilStep1:Readingroups.Step2:Guessthemeaningofthenewphrase.Step3:用直线画出原因(Whydowe...?),虚线画出方法(Howdowe...?)。cutdowndown:cutdowntrees:Step4:Checktheanswers.你能用动作解释这个词组吗?Fillintheblanks________comesfromtrees.Weuse________tomaketables,chairsandmanyotherthings.We_____________cutdown______________treesbecausetreeshelp____________________.plasticbags&plasticbottles