仁爱英语九年级上Unit2Topic2SectionA学习目标：1、熟记新单词，学会运用新短语；2、学习不定代词和不定副词。情感目标：了解沙尘暴的形成及其危害，认识树木的重要性，提高环保意识。waterpollutionnoisepollutionairpollutionsoilpollution大家有疑问的，可以询问和交流lightpollutionlitterwhitepollutionforestWhat’sworse,theforesthaschangedintodesert.Thewindisblowingstronglywithlotsofsand,wecallitsandstorm.WashtheearthawaySelf–study：（小组讨论，完成自主学习）1、Theboyandgirlsaretalkingabout_____3、短语翻译Treescanstopthewindfromblowingtheearthaway.Treescanalsostopthewaterfromwashingtheearthaway.Read1aandcompletetrees’functionsGroup–work：（小组讨论，分析以下句子，并总结短语的用法）2、Asaresult,alotofrichlandhaschangedintodesert.结果，许多肥沃的土地已经变成了沙漠。点拨：a)change…into…（把…变成…）=turn…into…把…..(转)变成…..e.g：PleasechangeEnglishintoChinese.请把英语变成汉语。练习：我们可以把冰变成水。Wecan_______ice_____water.3、Treescanstopthewindfromblowingtheearthaway.树可以防止大风刮走泥土。Treescanalsostopthewaterfromwashingtheearthaway.也可防止流水冲走泥土点拨：stopsb./sth.(from)doingsth.=preventsb./sth.(from)doingsth.---阻止…做某事链接：同义词组keepsb./sth.fromdoingsth.---阻止…做某事（from不能省略）练习：大雨使我们无法外出。Theheavyrainusgoingout..=________________________________=_________________________________4、Cuttingdowntreesisharmfultohumanbeings,animalsandplants.译：_______________________________思考：cuttingdowntrees是_________短语在句子中作______语，谓语用______数。练习：阅读是我的爱好。myhobby.()1.Weshouldhumansdestroyingtheenvironment.A.keep.byB.stop.toC.prevent.byD.stop.from()2.Ihavetowaitforthetrafficlightstogreen.ThenIcangoonwalking.A.changeB.changedC.changetoD.changinginto()3.Theheavyrainusfromfinishingthework.A.protected.B.preventedC.movedD.made()4.Thedriverwasbadlyhurt_____ofthetrafficaccident.A.ataresultB.intheresultC.withtheresultD.asaresult()5.alwayshelpsothers_____sheisverybusy.A.butB.andC.althoughD.because()6.Wemustplantmoretreesafterwe_____everyyear.A.cutoffthemB.cutthemoffC.cutdownthemD.cutthemdown