Unit4Globalwarming亲爱的同学们,在朗读和背诵之前,请先试着完成下面的语法填空吧
Thereisnodoubt1theearthisbecomingwarmerbutthereisfiercedebateoverwhetheritishumanactivitythathascausedthisglobalwarmingorwhetheritisjustanaturalphenomenon
ManyscientistslikeDr
JaniceFosterbelievethatpeoplehavecausedtheincreaseintheearth’stemperature2burningoffossilfuelslikecoal,naturalgasandoiltoproduceenergy3byproductsarecalled“greenhouse”gases,themostimportantone4carbondioxide
Thesegasestrapheatfromthesunandthereforewarmtheearth,withoutwhichtheearth5(be)aboutthirty-threedegreesCelsiuscoolerthanitis
Butincreasedamountofcarbondioxidemeansthat6heatenergyistrappedintheatmosphere,7(cause)theglobaltemperaturetogo8
On9otherhand,scientistslikeGeorgeHambleybelievethatanywarmingwillbemildwith10badenvironmentalconsequencesandmorecarbondioxideisactual