PAGEPAGE1Unit4GlobalwarmingⅠ.單詞拼法1．InChinaaboutthreebillionplasticshoppingbagsareconsumed(消耗)everyday.2．Notonlycantakingexercisecontributetohealthbutitalsorefreshes(使振作)yourmind.3．Ifirstreadthefashionmagazineoveradecadeagoandhavesubscribed(訂購)toitsince.4．Cyclinghasbecomeanewtrend(趨勢)aroundtheworld，agoodwayofenergysavingandlow-carbonlife.5．Inadditiontothesetraditionalactivities，wehaveawiderrange(范圍)ofchoicessuchastravellingandvisitingourrelativesorfriends.6．Inmyopinion，althoughtheInternetprovidesuswithemotionalcomfortaswellaslargequantities(數量)ofinformation，weshouldbecarefulwhileusingit.7．Weadvocate(提倡)usingclothorpaperbagsinsteadofplasticones.8．Theemploymentproblemtendstobeacommonphenomenon(現象)inalotofcountries.Ⅱ.單句改錯1．Wecanknowmoreaboutthelifeofgreatpeopleaswellhistoryandculturesofothercountries.well后加as2．Atpresent，alargequantityoffoodandwaterareneededintheearthquake-hitarea.are→is3．Therubbishresultsfromthedirtywater.from→in4．Inthecitycenter，thecitizenshavetoputupnoise.up后加with5．Yourmotherseemsverymuchopposedyourgoingabroad.opposed后加to6．Circumstancepermitting，I'llgoabroadtostudy.Circumstance→Circumstances7．Asaresultthepilots'strike，alltheflightshadtobecancelled.result后加of8．Hetendstolosinghistemperifyoudon'tobeytherule.losing→loseⅢ.教材與語法填空Thereisnodoubt1.thattheearthisbecomingwarmerbutthereisafiercedebateoverwhetheritishumanactivitythathascausedthisglobalwarming2.oritisjustanaturalphenomenon.ManyscientistslikeDr.JaniceFosterbelievethatpeoplehavecaused3.theincreaseintheearth’stemperaturebyburningfossilfuelslikecoal，naturalgasandoiltoproduceenergywhoseby－products4.arecalled(call)“greenhouse”gases，themostimportantone5.being(be)carbondioxide.Thesegasestrapheatfromthesunandthereforewarmtheearth，without6.whichtheearthwouldbeaboutthirty－threedegreesCelsiuscooler7.thanitis.But8.increased(increase)amountofextracarbondioxidemeansthatmoreheatenergyistrappedintheatmospherecausingtheglobaltemperaturetogoup.9．Ontheotherhand，scientistslikeGeorgeHambleybelievethatanywarmingwillbemildwithfewbadenvironmentalconsequencesandmorecarbondioxideis10.actually(actual)apositivething.Ⅳ.教材與短文改錯Iamdoingaprojectonbehalfofmyschoolaboutglobalwarming.SometimesIfeltthatindividualscannothaveanyeffectatsuchhugeenvironmentalproblems.Anyway，I’mnotsurewheretostartitwithmyproject.SoIwouldlovetogetanysuggestion.Itissuggestedthatwetookmanymeasures.Forexample，wecanbuythingsmakingfromrecycledmaterials.Plantingtreesisalsogoodway.Important，wecanaskyourfamilyandfriendstoworktogetherwithus.Wecangetourparentstobuyproductsthataremadetosaveenergy.Remembering—ourcontributioncounts.答案：Iamdoingaprojectonbehalfofmyschoolaboutglobalwarming.SometimesIeq\o(felt,\s\do15(feel))thatindividualscannothaveanyeffecteq\o(at,\s\do15(on))suchhugeenvironmentalproblems.Anyway，I’mnotsurewheretostartitwithmyproject.SoIwouldlovetogetanyeq\o(suggestion,\s\do15(suggestions)).Itissuggestedthatweeq\o(took,\s\do15(take))manymeasures.Forexample，wecanbuythingseq\o(making,\s\do15(made))fromrecycledmaterials.Plantingtreesisalsoeq\o(∧,\s\do15(a))goodway.eq\o(Important,\s\do15(Importantly))，wecanaskeq\o(your,\s\do15(our))familyandfriendstoworktogetherwithus.Wecangetourparentstobuyproductsthataremadetosaveenergy.eq\o(Remembering,\s\do15(Remember))—ourcontributioncounts.Ⅴ.話題微寫作1．不同的科學家對全球變暖有不同的看法。2．有些科學家同意全球變暖是個災難。3．不斷增長的溫度可能會導致洪水、干旱和饑荒。4．其他科學家反對這種觀點，認為這種變暖會很溫柔。5．它不會在環境方面導致嚴峻的后果。Differentscientistshavedifferentopinionsonglobalwarming.Somescientistssubscribetotheviewthatglobalw