仁爱版九年级上Unit2Topic3SectionC课件.ppt
- 文档编号:18709064
- 上传时间:2023-10-13
- 格式:PPT
- 页数:25
- 大小:10.69MB
仁爱版九年级上Unit2Topic3SectionC课件.ppt
《仁爱版九年级上Unit2Topic3SectionC课件.ppt》由会员分享,可在线阅读,更多相关《仁爱版九年级上Unit2Topic3SectionC课件.ppt(25页珍藏版)》请在冰点文库上搜索。
Unit2Topic3Whatkindsofthingscanwedotoprotecttheenvironment?
SectionC,-ByDavid,1._itsraininghard,hekeepsonworkingoutside.2.Kangkangcanplaythevoilin,_Icant.3.Mr.Linisverykind_heisveryhumorous,too.4.Thesuitfitsmewell_Icantaffordit.,Though,while,and,but,Fillintheblanksusingbut,and,thoughandwhile.,Revision:
Whatnewwayshavebeeninventedtoproducepower?
Askandanswer:
electricvehicle,biogastechnology,Whatnewwayshavebeeninventedtoproducepower?
Askandanswer:
maglevtrain,waterbattery,Lookupthesewordsinadictionary.,power,acidrain,nuclear,renewable,electric,efficient,电力;动力;力,酸雨,原子核的,原子能的;核动力的,可更新的,电动的,用电的,效率高的;有能力的,Windisusedforproducingelectricityinmanyplaces.,Lookatthefollowingpicturesandguessthemeaningoftheunderlinedword.,Guessinggame,Moreandmorepeopleareinterestedinelectriccars.,Guessinggame,ThemaglevtraininShanghaiusesmagnets.Themagnetspushthetrainforward.,Guessinggame,peopleproducepowerfromcoal,butitisverydirtyandcausesacidrain.,Guessinggame,Nuclearpoweriscleanbutitisverydangerous.,Guessinggame,Readandunderstand,1a,Choosetherightpictureforeachparagraph.,Inmanycountries,peopleproducepowerfromcoal,butitisverydirtyandcausesacidrain.Somecountriesusenuclearenergytoproducepower.However,nuclearpowercanbeverydangerous.Tosolvetheenergyproblem,peopleallovertheworldarelookingallthetimefornewwaystoproducepower.,c,_Chinaisoneofthefirstcountriesintheworldtousebiogastechnology.Farmersrecyclestraw,grassandanimalwastetomakebiogas.Thisrenewableenergyisusedinpeopleseverydaylife.,Choosetherightpictureforeachparagraph.,_Electricvehiclesweredevelopedinthe1990s.Nowthereareelectricvehiclesinmanycountries.Theyareveryefficientandcostverylittletorun.Althoughelectricvehiclesproducenopollution,therewillbeanincreaseinelectricityneedsiftheyarewidelyused.,a,_InChina,thebest-knownmaglevtrainistheGerman-builtoneinShanghai.Ittakespeople30kmtotheairportinjust7minutesandreachesatopspeedof431kmperhour.Itisquietandquick.Thereisnowheelnoise,becausetherearenowheels.Maglevtrainsareveryenergyefficientanddonotpollutetheair.However,maglevguidepathsaremuchmoreexpensivethantraditionalstreetrailways.,b,1.Whyisntcoalagoodmaterial?
2.Whatisthedisadvantageofusingnuclearpower?
3.Whatdoyouthinkofelectriccars?
4.Whatdoyouthinkofthemaglevtrain?
Becauseitisverydirtyandcausesacidrain.,Becauseitcanbeverydangerous.,Itisquietandquick.,Theyareveryefficientandcostverylittletorun.,Askandanswer:
Answerthefollowingquestionsaccordingto1a.,Read1aagainandfilloutthefollowingtable.,renewable,efficient,cheap,nopollution,quiet,quick,energyefficient,nopollution,Itwillcauseanincreaseinelectricityneeds.,muchmoreexpensivethantraditionaltrains.,Workalone:
1b,powerstations,themovementofwater,thewindpower,solarenergy,a.Therearemorethan3000powerstationsintheworldthatproduceelectricitybyburninggarbagetoheatwater.b.Peopleusethemovementofwatertoproduceelectricity.c.Windisusedforproducingelectricityinmanyplaces.d.Peopleproduceelectricityfromthesun.,(b),(c),(d),Workalone,(a),2a,Whathabitsaregoodfortheenvironment?
Listasmanyasyoucan.Themoreyoulist,thegreeneryouare.,GoodHabits,1.Turnoffthelightswhenyouleavearoom.,2.Walkorrideabikeinsteadoftakingabusorataxi.,3.Takeaclothbagwhenyougoshopping.,4.Dontuseplasticbags.,3,Writtenwork:
Homework:
Copythewordsandphrases.抄写单词和词组。
2.StudyCase:
导学案Unit2Topic3SectionC3.Recite1aPassage.背诵1a课文。
Classisover!
Good-bye!
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 仁爱 九年级 Unit2Topic3SectionC 课件