2023学年完整公开课版Unit1SavingtheEarth3

Unit1SavingtheEarthReadingairpollutionsmog=smoke+fog烟雾waterpollutionWhatcausestheenvironmentpollutionnowadays?

treescutting/waterpollution/airpollution/rubbisheverywherenoisy/toomanycars2.Whatisthebestwaytoprotectourearth?●Asagreenconsumers…

Words&expressionsatmosphere大气层、空气thesurfaceofthemoon月球表面rainforests雨林destructionofrainforests雨林的破坏

flood洪水

ReadingYouaregoingtoreadabookreviewbyTonyMa.Beforeyoureadit,lookatthebookcover,thetitle,thefirstparagraphandtheheadings,andtrytoanswerthesequestions.

ALookandthinkTheYoungGreenConsumerGuideThewritersareJohnElkingtonandJuliaHailes.Agreenconsumerissomeonewhoonlybuysgoodsthatwillnotharmtheenvironment..ThemaintopicofthebookisbecomingagreenconsumertosaveEarthFour.●Thegreenhouseeffect.●Destructionofrainforests●Badhabits●HowcanwesaveEarth?

Skimmingthetextfindoutthemainideaofeachtopic.Readthefirsttopicandfindoutthemainidea

TheatmospherearoundEarthisessentialtoalllivingthings.

2.Whatisthemainideaofthesecondtopic?

PeoplearemakingholesintheozonelayerMoretreesarecutdown,whatwillhappen(topic3)?Theburningandcuttingdownoftreesismakingthegreenhouseeffectworse.itcausesfloods.Inthefourthpicturewecanseeamountofrubbishthere?andwhatdoyouthinkofthispassage?Badhabitscausepollution.Rubbishshouldbethrownawayinrightwayorweshoulduserecyclingthings.Whatdoesthelasttopictalkabout?Begreenconsumersandtrytouseandbuythingswhichdonotdamagetheenviroment.Readthetextandanswerthefollowingquestions.1.WhatcausesourEarthtobeindanger?2.Iftheatmospherekeepsintoomuchheat,willitbeharmfultoEarth?WhyorWhynot?Thegreenhouseeffect,thedestructionofrainforestsandourbadhabits.Yes,itwill.Becauseitwillcausethelevelofseastoriseanddrowncitiesandevencountries.3.Whatarethecausesofthegreenhouseeffect?4.Dothewritersofthebookgiveanexampleofthosebadhabitsthatcausepollution?Ifso,whatisit?5.WhatcanwedotosaveEarthfromdanger?PeoplepollutingtheatmospherewithChemicalsandtheburningandcuttingdownoftrees.Yes,theydo.PeoplethrowawayasmanyassevenbillionbottlesintheUKeveryyear!Wecanbecome‘greenconsumers’andonlybuyanduse‘environmentallyfriendly’things.Listenandanswer:ListentoTheGreenhouseEffect

andanswerquestions.1、Withoutatmosphere，whatwillhappen?Theearthwouldbeascoldandlifeless(a.无生命的)asthesurfaceofthemoon.2、Whyisouratmospherechanging?Becausewearepollutingitwithchemicals.Byburningfuelsaspetrol.5、WhatmaytheGreenhouseEffectcause?4、Howarethesegasesproduced?TheGreenhouseEffectmaycausetheleveloftheseatoriseanddrowncitiesandevenwholecountries.3、Thechemicalsareintheformofwater,aren’tthey?No,theyareintheformofgases.atmospherechemicalscarbondioxideburningfuelsmainlycausedbypollutedbyThegreenhouseeffect温室效应Carbondioxideareproducedmoreandmore,sotheykeepmuchofthewarmthfromgettingoutandkeepintoomuchheat.Thetemperaturerises.theatmosphere大气Globalwarming全球变暖ListentoDamagetotheozonelayer

andanswerquestions.What’sozone?Howisozonelayerdamaged?Ozoneisagaswhichoccurs20-50kmabovetheground.Ifformsanessentialprotectivelayer.WeusechemicalscalledCFCsinfridgesandspraycans,andtomakeplasticitemssuchasfastfoodboxes.ListentoDestructionoftherainforestsandanswerquestions.Whatdoesdestructionoftherainforestscause?MaketheGreenhouseEffectworseErosionofthesoilandflooding,aswellasdestroyingthepeopleandanimalswhomaketheforeststheirhome.Whatisdestructionoftherainforests?Burnandcutdowntrees?ListentoBadhabitsandanswerquestions.Itcreatesmassivemountainsofrubbishanditpollutesourlandandsea1、Whatarethebadhabitsmentionedinthepassage?Usingthingsonceandthrowingthemaway2、Whataretheresultsofthehabits?ListentoHowcanwesavetheearthandanswerquestions.

Weshouldbecomegreenconsumers.

Howcanwesavetheearth?Basedonyourreadingofthereview,Choosethecorrectanswers.1.Thewritersofthebookcomparetheatmosphereto______.agreenhouseanordinaryhousec.theglassofagreenhouse2.Becauseofpollution,_______.notenoughsunlightisreachingEarthtoomuchheatiskeptinEarthtooenoughheatisleavingEarth3Thegreenhouseeffectcausesthelevelofseasto_____.riseb.fallc.remainthesame4.Ifwecutdownmoretrees,thegreen-houseeffectwillbe______.worseb.betterc.thesame5.ManypeopleusethingsonlyonceandThenthrowthemaway.This_____rubbish.reducesb.helpcleanduces6.Thebookencouragesyoungpeopleto__.a.protecttheenvironmentmoreb.buymorethingsc.LearnmoreaboutEarthLanguage2、beindanger1、consumer消费者thegreenconsumer环保（绿色）消费者customer顾客处于危险中dangern.dangerousadj.3、beintrouble处于困难中4、thethreatsto+n.a/thethreatto+n.对于…的威胁threatn.threatenv.恐吓、威胁5.Itletssunlightinwhilekeepingmuchofthewarmth

fromgettingout.

keep…fromdoingsth.阻止做… stop…fromdoingsth. prevent…fromdoingsth.warmadj.warmthn.热量let…in放进、准许…进入getout散发6、beessentialfor对…很有必要7、lifelessa.无生命的life8、thesurfaceofthemoon月球表面9、chemical(s)n.化学物品chemicaladi.化学