【成才之路】-学年高中英语unit5Canada“TheTrueNorth”第4课时UnitRevision强化练习新人教版必修3Ⅰ.六选五根据短文内容，从下面的选项中选出能概括每一段主题的最佳选项。选项中有一项为多余项。A．ThelikelyreasonofglobalwarmingB．Globalwarming—aworldproblemC．ThefastincreaseinrecentyearsD．WhatweshoulddotoavoidgreenhousegasesproducingE．TheearthisbecomingwarmerF．Differentopinionsonthecauseofglobalwarming1．________Istheworldwarmingup?Accordingtomanyreports,theanswerisyes.Elevenofthehottestyearssince1850appearedbetween1995and.Lastyear,theUnitedNation'sIntergovernmentPanelonClimateChange(IPCC)reportedtheearthwasabout0.75℃warmerthanitwasin1850.Whilethisdoesn'tsoundlikealot,asmalldifferenceinaveragetemperaturecanmakeabigdifferenceinclimate.DuringthelastIceAge,theplanetwasonlyaboutfivedegreescolderthannow.2．________It'sallaboutthespeedatwhichtemperaturesarechanging.Inthepast,temperaturesmovedupordownstepbystep.Butinthe20thcentury,especiallysince1976,temperatureshavelikelyrisenmorequicklythanduringanycenturyinthelast1000years.WarmingmaybringimprovedharveststonortherncountriessuchasCanadaandRussia.However,manyspecieswon'tliketheseconditions.Theybeginmovingtowardscoolerplacesandcauselotsoftroubletohumanworld.3．________TheIPCCreportedthathumanactivityisverylikelyresponsiblebyincreasingthegreenhouseeffect.Somegasescausetheairtotakeinheatenergy.Withoutthegreenhouseeffect,theearth'saveragetemperaturewouldbe－18℃ratherthanthepresentcomfortable14.6℃.Themaingreenhousegasesarecarbondioxide,watervaporandsomeothergases.Burningoil,coalandwasteaddstothecarbondioxide,andithasincreased35%since1850.4．________Manyresearchershavefoundthatnaturalforcesalonedon'texplainthetemperatureincreasesoverthelast30to40years.Theirstudyshowsthatascarbondioxidegoesup,temperaturewillrise,too.Butsomescientistsdon'tagree.Theythinktheeffectofhumanproducedgreenhousegasesisverysmallcomparedtothenormalchangesthattheclimatecauses.5．________Whenaskedwhetherhumansarecausingtheworldwarming,CarlWunsch,aprofessoratMassachusettsInstituteofTechnologysays,“ItseemsverylikelyfromwhatI'veseen.Isit100%sure?No.Thereissomethingtodowithnaturalchanges.”Doesthatmeanweshouldhavea“waitandsee”attitude?NotaccordingtoWunsch.Hepointsoutwebuyhouseinsurancenotbecausewearesureourhomeswillbeonfire,butbecauseit'sadangerwe'dratheravoid.答案：1－5ECAFDⅡ.阅读表达阅读下面短文，并根据短文后的要求回答问题(请注意问题后的字数要求)。[1]CanadianculturewasheavilyinfluencedbyBritishcultureandtraditions.NowonecanalsonoticetheinfluenceofAmericanculture.Overtheyears,lotsofpeoplehavemovedtoCanada.TherehasbeenahealthychangeofCanadian'sideasthathasresultedinthedevelopmentofcertainspecialfeaturesinCanada.ThepeopleofCanadahavealwaysbeenproudoftheirdiverseculturalbackgrounds.[2]Art:Canadahassomeofthemostwonderfulclassicalworksofart.Intheyear1930,artistsbegandevelopingtheirownpersonalstyle.The“GroupofSeven”isconsideredtobethefirstgroupofnativeartiststocreatetheirownstyle.[3]Languageandreligion:Becauseofitsdiversecultures,Canadahastwoofficiallanguages,EnglishandFrench.Thereis________.AnumberofpeopleinCanadahaveconfirmedthattheyhavenoreligiousbelief,thoughtherearemanyothergroupsthatfollowProtestantismasareligion.[4]Literature:TheliteratureofCanadabasicallyshowsthedifferentculturalinfluencesofothercountries.SomeoftheearlyworksweredividedaccordingtotheregionofCanad...
