九年级英语上册 Unit 2 Topic 3 What can we do to protect the environment Section C课件 （新版）仁爱版.ppt

Unit2Topic3Whatkindsofthingscanwedotoprotecttheenvironment SectionC Usebut and whiletoanswerthefollowingquestions Whatactivitiesshouldwedotoprotecttheenvironment Whatactivitiesshouldn twedotoprotecttheenvironment 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 Moreandmorepeopleareinterestedinelectriccars Lookatthefollowingpicturesandguessthemeaningoftheunderlinedword ThemaglevtraininShanghaiusesmagnets Themagnetspushthetrainforward Lookatthefollowingpicturesandguessthemeaningoftheunderlinedwords peopleproducepowerfromcoal butitisverydirtyandcausesacidrain Lookatthefollowingpicturesandguessthemeaningoftheunderlinedwords Nuclearpoweriscleanbutitisverydangerous Lookatthefollowingpicturesandguessthemeaningoftheunderlinedword Read1aandanswerthefollowingquestions Whyisn tcoalagoodmaterial Whatisthedisadvantageofusingnuclearpower Whatdoyouthinkofelectriccars Whatdoyouthinkofthemaglevtrain Itisverydirtyandcausesacidrain Nuclearpowercanbeverydangerous Itisquietandquick Theyareveryefficientandcostverylittletorun Choosetherightpictureforeachparagraphof1a a b c Chinaisoneofthefirstcountriesintheworldtousebiogastechnology Farmersrecyclestraw grassandanimalwastetomakebiogas Thisrenewableenergyisusedinpeople severydaylife Electricvehiclesweredevelopedinthe1990s Nowthereareelectricvehiclesinmanycountries Theyareveryefficientandcostverylittletorun Althoughelectricvehiclesproducenopollution therewillbeanincreaseinelectricityneedsiftheyarewidelyused InChina thebest knownmaglevtrainistheGerman builtoneinShanghai Ittakespeoplejust7minutestogototheairport30kmawayandreachesatopspeedof431kmperhour Itisquietandquick Thereisnowheelnoise becausetherearenowheels Maglevtrainsareveryenergyefficientanddonotpollutetheair However maglevguidepathsaremuchmoreexpensivethantraditionalsteelrailways 1b Workalone Read1aagainandfilloutthefollowingtable renewable efficient cheap nopollution quiet quick energryefficient nopollution Itwillcauseanincreaseinelectricityneeds muchmoreexpensivethantraditionaltrains a Therearemorethan3000powerstationsintheworldthatproduceelectricitybyburninggarbagetoheatwater b Peopleusethemovementofwatertoproduceelectricity c Windisusedforproducingelectricityinmanyplaces d Peopleproduceelectricityfromthesun 图文搭配 a b d c Fillintheblanksusingbut and thoughandwhile 1 it sraininghard hekeepsonworkingoutside 2 Kangkangcansolvetheproblem Ican t 3 Mr Linisverykind heisveryhumorous 4 Thesuitfitsmewell Ican taffordit Though while and but Usebut and thoughandwhiletodescribethewaysofproducingpower 3 Writtenwork Whatgoodhabitsprotecttheenvironment Listasmanyasyoucan Themoreyoulist thegreeneryouare GoodHabits 1 Turnoffthelightswhenyouleavearoom 2 Walkorrideabikeinsteadoftakingabusorataxi 3 Takeaclothbagwhenyougoshopping 4 Don tuseplasticbags UsefulexpressionsInmanycountries peopleproducepowerfromcoalornuclearenergy It sapitythatit stooexpensivetouseinmostofChina WorkingroupsThinkofmorewaystoproducepower Andtalkabouttheiradvantagesanddisadvantages Homework 1 列出更多的保护环境的好习惯 2 课后搜集好的节能环保的方法或者产品与大家交流 3 预习SectionD Goodbye