九年级英语上册 Unit2 Topic3 SectionC课件 仁爱版.ppt

unit2topic3whatkindsofthingscanwedotoprotecttheenvironment sectionc 1 it sraininghard hekeepsonworkingoutside 2 kangkangcanplaythevoilin ican t 3 mr linisverykind heisveryhumorous too 4 thesuitfitsmewell ican taffordit 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 thisrenewableenergyisusedinpeople severydaylife choosetherightpictureforeachparagraph electricvehiclesweredevelopedinthe1990s nowthereareelectricvehiclesinmanycountries theyareveryefficientandcostverylittletorun althoughelectricvehiclesproducenopollution therewillbeanincreaseinelectricityneedsiftheyarewidelyused a inchina thebest knownmaglevtrainisthegerman builtoneinshanghai ittakespeople30kmtotheairportinjust7minutesandreachesatopspeedof431kmperhour itisquietandquick thereisnowheelnoise becausetherearenowheels maglevtrainsareveryenergyefficientanddonotpollutetheair however maglevguidepathsaremuchmoreexpensivethantraditionalstreetrailways b 1 whyisn tcoalagoodmaterial 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 takeaclothbagwhenyougosh