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1、unit 6 Earth first-Developing ideasWhats really green?Look at the questions about“green living”and tick your answers.1.Whichshoppingbagismoreenvironmentallyfriendly?()Aplasticbag.()Apaperbag.()Neitherofthese.2Whatshouldyoudotosaveenergywhenleavingyourhome?()Turnoffadevice.()Unplugadevice.()Neitherof
2、these.3Whatfoodisbetterfortheenvironment?()Foodproducedneartowhereyoulive.()Foodproducedfarfromwhereyoulive.()Itdepends.4.Whichuseslesswater?()Takingabath.()Takingashower.()Itdepends.lPaper shopping bags are better than plastic ones.lWhen you turn off a device,it stops using power.lEating local food
3、 is good for the environment.lIts better to take a shower than a bath.Read the passage quickly and judge they are right or not?Mostofusareawarethatwemusttakecareoftheenvironment,andthemajorityofus take steps to save energy and reducewasteandpollution.Butrecently,some“green truths”have been shown to
4、beonly half true,or even completely false.Here are some common ones.Which arereallygreen?Whats main idea of this paragraph?Plasticbagscauselitterandareadangertowildanimals,whichmistakethemforfood.Ittakeshundredsofyearsforplastictobreakdown,butmuchlesstimeforpaper.Becauseofthis,peoplethinkpaperbagsar
5、ethebetterenvironmentalchoice.However,making a paper bag uses four times as much energy asmaking a plastic bag and up to three times the amount of water.Theprocessalsoproducesmoregreenhousegases.Infact,bothkindsofbagsarebadfortheenvironment.So,takeareusablebagwithyouwhenyougoshopping.?Paper shopping
6、 bags are better than plastic ones.EFFECTSPaper bags are not good for the environment.Whenweturnoffadevice,suchastelevision,itgoesintostand-bymode.Devicesinthismodestillusepower,andolderdevicesinstand-bymodecanuseevenmore.Thishappensbecauseelectricitycontinuestoleakfromthedevice,evenwhenitisturned“o
7、ff”.Tomakesureyourapplianceisinfactoff,removetheplugfromitspowersupply.When you turn off a device,it stops using power.Turning off a device wont stop it from using power.EFFECTSItseemslikecommonsense:eatinglocalfoodshouldbebetter for the environment,because it does not need to betransported long dis
8、tances and kept cold during transport.Unfortunately,it is not that simple.It is the production offood,not its transport,that uses most of the energy andproducesmostofthegreenhousegases.Insomecases,localproduce might have used more energy and produced moregreenhousegasesthanproducegrownalongwayawayev
9、entakingintoaccountitstransport.Eating local food is good for the environment.Eating local food isnt always better for the environment.EFFECTSItdependsonhowlongyouspendintheshowerandhowlargeyourbathis.Ifyouspendmorethaneightminutesinashower,youlluseasmuchwaterasinabathabout50litresofwater.Therefore,
10、thekeyistokeepyourshowertimeasshortaspossible.Environmentalawarenessisnowpartofdailylife.Butitsworthcheckingcommonideasandopinionstoseewhatsreallygreen.Its better to take a shower than a bath.EFFECTSIts not always better to take a shower than a bath.CompletetheseConclusionIntroductionBodyCompletethe
11、seConclusionIntroductionBodygreen truth 1green truth 2green truth 3green truth 4Paperbagsarenotgoodfortheenvironment.Turningoffadevicewontstopitfromusingpower.Eatinglocalfoodisntbetterforenvironment.Itsnotalwaysbettertotakeashowerthanabath.Think and share!Whichofthe“greentruths”surprisesyoumost?Give
12、yourreasons.Think and share!2Areyouawareofanyother“greentruths”thatarenottrue?Sharethemwiththeclass.Practice!3.How“green”areyou?Shareyour“greenactions”withtheclass.4.Whatcanyoudotobecome“greener”?Workingroups.Giveatalkaboutoneofthe“greentruths”inthepassage.1Usethesequestionstohelpplanyourtalk.Which“
13、greentruth”areyougoingtotalkabout?Whydopeoplebelieveitis“green”?Whyisitnotcompletelytrue?Whatcanyoudotobecome“greener”?2Organiseyourtalkfollowingthestepsbelow.Startyourtalkbystatingthetopic.Describeyourchosen“greentruth”inmoredetail.Explainwhyitisnotcompletely“green”.Endyourtalkbyencouragingyouraudiencetobecome“greener”.Giveyourtalktotheclass.Share your opinions with the class.20Thank you