九年级英语上册《unit 2 topic 2 all these problems are very serious》讲学稿（新版）仁爱版

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1、Unit2Topic2Alltheseproblemsareveryserious学习目标与要求：1.掌握本课的重点词汇和短语：sand,although,sandstorm,desert,humanbeing,reduce,completely,changeinto,stop…from,blow/wash…away,asaresult2.本课的重点语句：1)Asaresult,alotofrichlandhaschangedintodesert.2)Treescanstopthewindfromblowingtheearthaway.3）Aloto

2、fwatercanbesavedbyforests.4）Althoughwehavebuilt“TheGreenGreatWall”,westillneedtodosomethingtoprotecttheenvironment.3.通过学习人类滥砍伐对环境造成的严重破坏，唤起我们爱护树木，保护环境的意识。第一段：【短课导学】模块一：自主学习学习内容摘记Step1Introduction1.Howmanykindsofpollutiondoyouknow?（PPT）FinishP36-3.2.Speakoutthereasonsofthesepoll

3、ution.3.Learnsomephrases.（PPT）Step2听读----感悟课文。1.Listento1aandchoosethebestanswer.2.Listenagainandanswerthequestions.（PPT）1)What’stheweatherliketoday?2)Whatcausesthesesandstorms?3)Dowestillneedtodosomethingtoprotecttheenvironment?3.Thenwatchtheflashandstudentsreadafterit.4.Read1

4、aandcompletetrees’functions.FinishP35-1c.Step3品读---读出理解。（自主学习：要求独立、安静完成）一、Read1aandunderlinethefollowingphrases.(在课本上划出下列内容)1)Whatbadweather!多么糟糕的天气！2)cutdown砍倒；降低；减少3)asaresult结果4)alotofrichland大量肥沃的土地5)changeinto变成…=__________________6)stopthewindfromblowingtheearthaway阻止风把泥土

5、吹走（阻止某人/某物做某事=_______/______________________）7)beharmfulto对……有伤害(同义词组：_______________________)8)comeintobeing形成(P36-3)9)plentyof大量许多(P36-4)=__________________二、Completethesentenceswiththecorrectformsofthegivenphrasesinthebox.FinishP36-2.三、语言点梳理。3.1.Peoplehavecutdowntoomanytrees

6、.人们砍了许多树。【归纳】砍伐;降低；减少_________cut的现在分词:_________过去式:_______过去分词：_______【链接】1）cutsth.inhalves把某物切成两半2）cutsthintopieces把某物切成碎片【反馈训练】翻译：请把这个苹果切成两半。_____________________________3.2.Asaresult,alotofrichlandhaschangedinto=turnedintodesert.结果，许多肥沃的土地变成了海港。【归纳】结果________________变成…chan

7、geinto…=【反馈训练】3.2.1Hegotuplate,_________________,(结果)hemissedtheearlybus.3.2.2Waterhas__________________（变成）steam.水变成了蒸汽。3.3.Treescanstop/prevent/keepthewind(from)blowingtheearthaway.译：【归纳】阻止某人/某物做某事/【归纳】吹走：_______________()3.3.1Wemust______thewaterfrom_______polluted.A.prevent

8、...beB.prevent...beingC.prevent...tobeD.prevent...bedo