八年级下册第七课

duststormItisdirtyItisnotafunnything.Itisaserious

thing.sanddirtdustTherichlandhaveturnedintodesert.Unit2PlantaPlantLesson7PlantingTreesButhowtoplantaplant?aseedlingroot1.DigaholeItmustbelargeenough.2.Puttheseedlinginside3.Covertherootsandfilltheholewithdirt.(第一次填土)Packthedirtwithyourfeet.4.putalittlewaterinthebottomoftheholeAreyouready?Let’sdoit!No.2ListenYes.Manypeopleareworriedbecausetheenvironmentischanging,andtheywanttodosomethingtohelp.Thesechangesare_______.Whenthereisa__________inspring,itgetswindyand_______everywhere.Ms.Liutoldusthewindblowsthe______andthesandherefromthenorth.Nothingcanstopthewindbecausetherearenotmanytreesleft.Exactly.Alotofrichlandsinthenorthernareahave_________desert.Isupposetreeplantingisveryimportantwork.seriousduststormdirtydirtturnedintoexactnorth想一想，译一译，选一选。1.Nothingcanstopthewindbecausetherearenotmanytreesleft.2.Exactly.Alotofrichlandsinthenorthernareahaveturnedintodesert.3.句子“Isupposetreeplantingisveryimportantwork.”中suppose的意思是（）A:wantB:thinkC:hope没有东西能阻止风，因为没有很多树剩下.确实如此，很多北部地区的富饶的土地都已经变成了沙漠.BListentothelesson7.Findthenewwordsandnewphrasesandunderlinethem.ExercisePleaseopenyourlearningEnglishbooks.TheGreenGreatWall绿色万里长城三北防护林体系工程是一项正在我国北方实施的宏伟生态建设工程，它是我国林业发展史上的一大壮举，开创了我国林业生态工程建设的先河。地跨东北西部、华北北部和西北大部分地区，包括我国北方13个省（自治区、直辖市）的559个县（旗、市、区），建设范围东起黑龙江省的宾县，西至新疆维吾尔自治区乌孜别里山口，东西长4480公里，南北宽560—1460公里，总面积406．9万平方公里，占国土面积的42．4%，接近我国的半壁河山Let’sdoitNo.3Let’ttryourbesttomaketheworldgreenerWhyshouldw