英语四级全真预测试卷及答案解析(7)-1

英语四级全真预测试卷及答案解析(7)-1最牛英语口语 培训 焊锡培训资料ppt免费下载焊接培训教程 ppt 下载特设培训下载班长管理培训下载培训时间表下载 模式：躺在家里练口语，全程外教一对一，三个月畅谈无阻！洛基英语，免费体验全部在线一对一课程：www.englishvip.com/wenkxd.htm（报名网址）2010年12月大学英语四级考试全真预测试卷七PartIWriting(30minutes)Directions:Forthispart,youareallowed30minutestowriteacompositiononthetopic:TheImportanceofkeepingAGoodMood.Youshouldwriteatleast120wordsaccordingtotheoutlinegivenbelowinChinese:1.人们每天都生活在压力之下2.所以说保持一个好的心情是十分重要的3.我的观点和原因PartIIReadingComprehension(SkimmingandScanning)(15minutes)Directions:Inthispart,youwillhave15minutestogooverthepassagequicklyandanswerthequestionsonAnswerSheet1.Forquestions1-7,markY(forYES)ifthestatementagreeswiththeinformationgiveninthepassage;N(forNO)ifthestatementcontradictstheinformationgiveninthepassage;NG(forNOTGIVEN)iftheinformationisnotgiveninthepassage.Forquestions8-10,completethesentenceswiththeinformationgiveninthepassage.GulfWrackedByKatrina'sLatestLegacy-Disease,Poisons,MoldAmonthafterHurricaneKatrinatorethroughtheU.S.GulfCoast,medicalexpertsarenowstrugglingwiththelatestcrisisintheregion;contamination(污染).KatrinaleftNewOrleansandothercommunitiestaintedwithoil,sewage,andpossiblypoisonsleachedfromfederaltoxicwastesites,theU.S.EnvironmentalProtectionAgency(EPA)says.Thepollution,combinedwiththelackofregularmedicalservicesintheregion,hasraisedseriousquestionsaboutthesafetyofNewOrleansandothercoastaltownsaspeoplelongingforhomebegintogoback."Idon'tthinkNewOrleansissafeforpeopletoreturnto,fromapublichealthandenvironmentalhealthstandpoint,"saidMiriamAschkenasy,anenvironmentalhealthexpertworkingwithOxfamAmericaintheregion.Muchofthecontaminationrestsinthebrown,filmysediment(沉淀物)leftbehindbyKatrina'spollutedfloodwaters.RecentEPAtestsofthesedimentconfirmedhighlevelsofE.colibacteria,oilandgaschemicals,andlead,aswellasvaryingquantitiesofarsenic.Thehealthrisksposedbythesedimentareimmediate,expertssay,becausethesludge(淤泥)isnearlyimpossibleforreturningresidentstoavoid.InNewOrleans,itcoverseverysurfacethatwasflooded,fromcarsandnow-deadlawnstotheentirecontentsoffloodedhomes,stores,hospitals,andschools."Whenpeoplecomeback,theyareexposedtothesediment,"saidWilmaSubra,achemistfromNewIberia,Louisiana,whoisanalyzingthesediment."It'sintheiryardsandhouses."OldPollutionResurfacingPlaqueminesParish,aruralcountyonthepeninsulasouthofNewOrleans,isnowcoveredwithevenmoretoxicsedimentthanitwastwoweeksago,thankstoHurricaneRita."Sixinchesuptoonefoot(15to30centimeters)ofsludge,"Subrareported.MuchofthesludgeinPlaqueminesistheproductofnearbybayousandbaybottoms,wheresedimentwasliftedupbyKatrina'sandRita'sstormsurges.Thesedimenthasbeenpollutedovertheyearswithindustrialchemicalsandheavymetals,saidSubra,whotestedthesedimentfortheSouthernMutualHelpAssociation,anonprofitorganizationinNewIberia,Louisiana."Thesewaterbodieshavereceivedindustrialwastesfordecades,"shesaid."Thismaterialhastoxicchemicals,metals,andorganicpetrochemicals(石化产品)."MattershaveonlybeenmadeworsebymultipleoilspillscausedbyKatrinaandRita.AccordingtotheU.S.CoastGuard,11oilspillshaveoccurredinsouthernLouisiana,totaling7.4milliongallons(28millionliters)ofoil,mostofwhichhasbeencontained.BacterialevelsarealsoespeciallyhighinthePlaqueminessludge,saidRodneyMallett,spokespersonfortheLouisianaDepartmentofEnvironmentalQuality."Thesewagetreatmentplantswereunderwater,"heexplained."Betweentheanimalwasteandthehumanwaste,you'vegotalotofbacteria."ProtectionKitsHealthandenvironmentalagenciesareadvisingpeopletoavoidcontactwiththesludge.Theyrecommendthatpeopleweargloves,goggles,anddustmasks,andthattheywashpromptlyifexposureoccurs.EPAofficialsaredirectingpeopletoitsWebsite(www.epa.gov)toinformthemselvesofthecontaminationrisks.Butmostpeoplereturningtotheareadon'thavecomputerstogetthatinformation,saidErikOlson,anattorneyfortheNaturalResourcesDefenseCouncil,anenvironmentaladvocacygroup."Ifyou[do]readtheWebsite,"headded,"youpracticallyhavetohaveadegreeinchemistrytounderstandit."Tobetterinformpeopleofhealthrisks,theSouthernMutualHelpAssociationandOxfamAmericaaredevelopingaprogramtogiveeveryreturningresidentaprotectivekit.Eachkitwouldcontainwaterproofsuits,goggles(风镜),shoecovers,andmasks,alongwithinformationaboutpotentialhazards,Volunteerswouldgiveoutthekitsatthesecuritycheckpointsthatnowstandatthemajorentrancestoaffectedcities.Thegroupshavemadeahundreddemonstrationkits,whichcostabout$100(U.S.)eachtoproduce,andhaveshownthemtostateleadersinLouisiana."Thegovernorisreallyinfavorofthis,"Subrasaid."Wejusthavetodeterminehowwe'regoingtofundthem."ToxicMoldBloomsInadditiontothetoxicsediment,sprawlingbloomsofmoldhavenowtakenholdinmanyfloodedhomes."Themoldisgrowingeverywhere-homesarejustcoatedwithit,"Subrasaid.TheproblemhasbecomesowidespreadthatfederalhealthofficialswarnedWednesdayofallergicreactionsandtoxicresponsestothemold.Professionalsshouldbehiredtocleanmoldthatcoversmorethantensquarefeet(onesquaremeter),theyurged."Those[surfaces]thatcan'tbecleanedneedtoberemoved,"saidStevenRedd,chiefoftheAirPollutionandRespiratoryHealthBranchoftheU.S.CentersforDiseaseControlandPrevention(CDC).TheeffectsofthemoldarealreadysurfacinginMississippi,whererespiratory(呼吸的)problemsareamongtheillnessesdoctorstherearereporting."We'reseeingalotofasthmafrominhalingthemold,"saidRichardPaat,teamleaderofatemporaryEastBiloxiclinic."Andmouthsoresfromthebadwater."Duetocontactwithuncleanwater,33peopleinthefloodzonehavecontractedVibrioinfections,accordingtotheCDC.Theinfectionsarecausedbyafamilyofbacteriathatliveincontaminatedsaltwater.Theycancauseseriousillness,especiallyinpeoplewithcompromisedimmunesystems.Todate,sixpeoplehavediedfromVibrioinfections."Peoplehadopenwoundandwalkedthroughfloodwaterwithsewageinit,"CDCspokespersonVonRoebucksaid."AndthesefolkswerehavingthesewoundsinfectedwithVibrio."DisasterResponseCare"Thisisahighlycontaminatedarea,"saidSusanBriggs,thephysicianoverseeingFEMA'sdisaster-responsemedicalteamsinLouisianaandAlabama.HerteamshavebeeninoculatingresidentsfortetanusandHepatitisAandB.Hepatitisisadangerwhenpeopleareexposedtosewage,throughwaterorfood,Briggsexplained.Tetanuscanoccurwhenpeoplecutthemselvesonuncleanmaterials,asmayhappenwhencleaningdebris.Therudimentary(根本的)livingconditionsinmanyKatrina-struckareasmakeitmorelikelythatpeoplewillgetsickandinjured,Briggssaid."Theyhavenoelectricity,nocleanwater,noairconditioning,"shesaid."Therearecollapsedstructuresandstrayanimals.Therearehugeamountsofstraydogs,andpeoplehavebeenbitten."Briggsandotherdoctorsintheareahavebeentreatingmanycasesofdiarrhea,rashes,andupper-respiratoryillnesses.Alloftheseconditionsaretobeexpectedafternaturaldisasters,accordingtotheCDC.Butit'stoosoontoknowiftheseailmentsarerelatedtocontamination,theCDC'sRoebucksaid."We'relookingatthatquestion,"hesaid."We'dliketoknowtheanswer."1.ThepassagegivesadescriptionofthecontaminationinNewOrleansafterHurricaneKatrina.2.KatrinaleftNewOrleansandothercommunitiestaintedwithoilandsewage.3.PlaqueminesParishisnowcoveredwithevenmoretoxicsedimentthatitwastwoweeksago.4.Peoplearebeingadvisedtoavoidcontactwiththesludgebyhealthandenvironmentalagencies.5.TheSouthernMutualHelpAssociationandOxfamAmericaaredevelopingaprogramtoselleveryreturningresidentaprotectivekit.6.TheconditionsinNewOrleansafterHurricaneKatrinaisspecial.7.Inadditiontothetoxicsediment,sprawlingbloomsofmoldhavenowtakenholdinmanyfloodedhomes,anditisgrowingeverywhere.8.Todate,sixpeoplehavediedfrom¬________.9.TherudimentarylivingconditionsinmanyKatrina-struckareasmakeitmorelikelythatpeoplewillget________.10.Alloftheseconditionsaretobeexpectedafter________.