仁爱英语九年级unit2topic3sectionC课件.ppt

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1、Unit2Topic3Wouldyouliketobeagreenerperson?SectionCUsebut,and,whiletoanswerthefollowingquestions.Whatactivitiesshouldwedotoprotecttheenvironment?Whatactivitiesshouldn’twedotoprotecttheenvironment?Lookupthesewordsinadictionary.poweracidrainnuclearrenewablee

2、lectricefficient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.Moreandmorepeopleareinterestedinelectriccars.Lookatthefollowingpicturesandguessthemean

3、ingoftheunderlinedword.ThemaglevtraininShanghaiusesmagnets.Themagnetspushthetrainforward.Lookatthefollowingpicturesandguessthemeaningoftheunderlinedwords.…peopleproducepowerfromcoal,butitisverydirtyandcausesacidrain.Lookatthefollowingpicturesandguesstheme

4、aningoftheunderlinedwords.Nuclearpoweriscleanbutitisverydangerous.Lookatthefollowingpicturesandguessthemeaningoftheunderlinedword.Read1aandanswerthefollowingquestions.Whyisn’tcoalagoodmaterial?Whatisthedisadvantageofusingnuclearpower?Whatdoyouthinkofelect

5、riccars?Whatdoyouthinkofthemaglevtrain?Itisverydirtyandcausesacidrain.Nuclearpowercanbeverydangerous.Itisquietandquick.Theyareveryefficientandcostverylittletorun.Choosetherightpictureforeachparagraphof1a.abcChinaisoneofthefirstcountriesintheworldtousebiog

6、astechnology.Farmersrecyclestraw,grassandanimalwastetomakebiogas.Thisrenewableenergyisusedinpeople’severydaylife.Electricvehiclesweredevelopedinthe1990s.Nowthereareelectricvehiclesinmanycountries.Theyareveryefficientandcostverylittletorun.Althoughelectric

7、vehiclesproducenopollution,therewillbeanincreaseinelectricityneedsiftheyarewidelyused.InChina,thebest-knownmaglevtrainistheGerman-builtoneinShanghai.Ittakespeoplejust7minutestogototheairport30kmawayandreachesatopspeedof431kmperhour.Itisquietandquick.There

8、isnowheelnoise,becausetherearenowheels.Maglevtrainsareveryenergyefficientanddonotpollutetheair.However,maglevguidepathsaremuchmoreexpensivethantraditionalsteelrailways.1bWorkaloneRead1aagainandfilloutthefollowingtab