教学案设计比赛福建省大田县第四中学九年级英语《Unit2Alltheseproblemsareveryserious》教案人教新目标版Ⅰ．Teachingaimsanddemands:1.Knowledgeaims1).Learnnewwordsandphrases.sand,justnow,sandstorm.cutdown,changeinto,desert.prevent…from,humanbeing,although.2).Learntotalkaboutkindsandharmofpollution.2.Abilityaims:培养学生合作交流，自主学习的能力。3.Emotions:Increasestudents’awarenessofprotectingenvironment.Ⅱ．Teachingprocedure:1．小组合作学习：1).小组交流讨论学案。2).分配展示任务。2.分组展示1）板演任务。2）分组讲解任务。学生展示时,教师须点拨的问题Task1若出现发音不准的情况，教师需做出正确的示范.Task2注意学生的语音语调是否准确,学生进行自由对话时,以鼓励和表扬为主。Task3引导学生作出完整的回答学生还有可能提到的问题有：(1)Howcantreesaffecttheweather?(2)HavewebuilttheGreatGreenWall?Task41.cutdown砍倒e.g:Don'tcutdownanytrees.注意：cut的现在分词为cutting,过去式和过去分词均为cut.2.although虽然，尽管e.g:Althoughheisverytired,hefeelshappy.注意：although不与but连用Task51.Alotofrichlandhaschangedintodesert.e.g:Ihavealotofhomeworktodotoday.changeinto改变,变成e.g:Youcan’tchangeironintogold.2.Treescanstopthewindfromblowingtheearthaway.…Theycanalsopreventthewaterfromwashingtheearthaway.stop/prevent/keepsb./sth.fromdoingsth.阻止某人/某物做某事e.g:Itriedtostop/preventmyson(from)playingcomputergames.Treescanpreventthewaterfromwashingtheearthaway.4．反馈:学生独立完成练习后交流结果。5．小结：学生小结后教师归纳总结。Ⅲ。教学反思：教师寄语：Wherethereisawill,thereisaway.学习过程:1.Trytoreadthefollowingsentences.Findoutandunderlinethenewwordsandphrases.Readaloudandremember.(1)Whatcausesthesandstorms?(2)Whatdidhedojustnow?(3)Cuttingdowntreesisharmfultohumanbeings.(4)Alotofrichlandhaschangedintodesert.(5)Theycanpreventthewaterfromwashingtheearthaway.(6)Althoughwehavebuilt”TheGreatWall”,westillneedtoworkhardtoprotecttheenvironment.2.Icanread.Trytoread1a.Payattentiontopronunciation.3.Icansay.Canyouhaveafree-talkaccordingto1a?Read1aandanswerthequestions.(1)Whatkindofpollutionaretheytalkingabout?(2)Whatcanstopthewindfromblowingtheearthaway?(3)Iscuttingdowntreesharmfultohumanbeings?Doyouhaveanyotherquestionsaccordingto1a?5.Icananalyze(分析).Readandunderlinethephrasesandtheimportantsentencesin1a.Eg(1)Alotofrichlandhaschangedintodesert.(2)Treescanstopthewindfromblowingtheearthaway.Canyoufindoutanyotherlanguagepointsin1a?6.Canyoufinish1b?Eg:(1)Alotofwatercanbesavedbyforest.(2)Treescanstopthewindfromblowingtheearthaway.7.Icando.当堂检测,通过1a的学习，我能完成与之有关的英汉互译。Whatcausesthesandstorms,doyouknow?Nowletmetellyou.Youknowallovertheworldpeoplehavecutdownmanytreeseveryyear.Treesarebecomingfewerandfewer.(1)大量肥沃的土地变成了沙漠。Sosandstormshappenwhenthewindisblowingstrongly.Nowwemustplanttrees!Themore,thebetter.(2)Treescanstopthewindfromblowingtheearthaway.(3)森林可以储藏大量的水分。ⅠTheycanalsopreventthewaterfromwashingtheearthaway.(4)Wehavecometorealizethatcuttingdowntreesisharmfultohumanbeings,animalsandplants.(5)WehavebuilttheGreatGreenWall,butwestillneedtoworkhardtoprotecttheenvironment.8.Whathaveyoulearnedfromthislesson?
