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《英语人教版九年级全册Unit13 Section A(3a-4c)》由会员上传分享，免费在线阅读，更多相关内容在应用文档-天天文库。
1、Unit13We’retryingtosavetheearth!SectionA(1a---2d)教学目标：一、目标(一)、能掌握以下单词和短语：Tolearnthefollowingwordsandexpressions.bottom,coal,public,ugly,cost,advantage,method,cruel,harmful,afford.二、教学重点1.Howtousethefollowingwordsandexpressions:cost,advantage,harmful,afford,usedto,playapart
2、in…2.tounderstandthepassageonPage99.三、教学难点1.Howtousethefollowingwordsandexpressions:cost,advantage,harmful,afford,usedto,playapartin…2.tounderstandthepassageonPage99.情感态度和价值观Afterlearningthispart,everystudentwillbeawareoftheserioussituationofpollutionanddeterminedtotakeact
3、iontoprotectourearthfronnowon.[来源:学§科§网]教学过程:Step1Lead-in1)Showsomepicturesaboutpollutionandaskstudentstodiscusswhat’sthedangerofeachkindofpollution.2)Herearesomewordsarerelatedtodifferentkindsofpollution.Writethemintheboxbelow,andyoucanaddmorewords.loudmusic,littering,bui
4、ldinghouses,cars,ships,mobilephones,rubbish,factories,planes,smoking.AirpollutionNoisepollutionWater3)Role-playthefollowingconversationandmakeyourownconversationsaboutthekindsofpollutionabove.A:Theriverwasdirty.Eventhebottomoftheriverisfullofrubbish.[来源:学*科*网]B:Butitusedto
5、besoclean.A:Yes,butpeoplearelitteringintheriver.B:Everyoneinthetownshouldplayapartincleaningitup.[来源:Z_xx_k.Com]Step2.Reading1)Fast-readingNowturntopage99andreadthepagequicklytofindanswerstothesheet.2)careful-reading3)Studyingusefulwordsandexpressions.①costv价钱为，花费n.价钱，代价；花
6、费，费用Thecostofaloafofbreadhasincreasedfive-fold..Badgesarealsoavailableatacostof£2.50.徽章也有卖的，2.5英镑一枚。It'sgoingtocostmeover$100,000tobuynewtrucks.买几辆新卡车将花掉我10万多美元。②harmfuladj.对…有害的；能造成损害的；不利；不良Smokingisharmfultoourhealth.吸烟对人类的健康有害。③usedtodo过去一向，过去时常，过去曾（而现在不再）做Whousedtodoyo
7、urlaundry?谁过去一直为你洗衣服？Sheusedtowashdishesinarestaurant.她曾经在餐馆里洗过盘子。④affordvt.买得起；担负得起；提供；给予Wecouldn'taffordtobuyanewcar.我们买不起新的车。Wecan'taffordtowait.我们等不起。Myparentscan'tevenaffordanewrefrigerator.我父母甚至买不起一台新冰箱。⑤playapartin扮演某角色;与…有关，对…有影响I'dliketoplayapartintheirdiscussion.
8、我愿意参与他们的讨论。Educationisplayingabigpartinenvironmentalprotection.教育在环境保护中起着很大作用。[来源:学§科§网]H
