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Unit4预习检测II.Skimthepassageonpage26-27tofindthebold(黑体字)wordorphrasethatcancompletetheblanks.FastreadingDeep--readingIII.ThedifferentideasbetweenDr.JaniceFoster&GeorgeHambleyIV.dividethepassageinto4parts andmatchthemainideaofeachpart.Windenergyisusedaspowerto produceelectricity.whereelectricityisproducedbyburningcoals.inwhichoilisrefinedandmadepure.afacilitydesignedtoconvertnuclearenergyintoelectricity.ontheroofofahouseonabrightsunnydayareusedtocollectsolarenergy,makingyourhousewarmorheatingyourwater.areusedtokeepbackwaterandraiseitslevelforirrigationorforproducingelectricity,etc.Howdoesitwork?StepVSummary315partstoaround370parts__________millionin40years.Allscientistsacceptthedateandagreetheburningormoreandmorefossilfuelsthathas_____________thisincrease. However,theattitudeofscientiststowardsthisriseiscompletelydifferent.Ontheonehand,Dr.Fosterthinksthatthe__________whichincreasesthetemperatureby5degreeswouldbea_____________.Ontheotherhand,GeorgeHambley,whoare_________________thisview,believethatweshouldnotworryabouthighlevelsofcarbondioxideintheair.Theypredictthatanywarmingwillbe________withfewbadenvironmental_____________.Butnoonereallyknowstheeffectsofglobalwarming. 有效训练