四级考试模拟试题第一套附答案.docx
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四级考试模拟试题第一套附答案.docx
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四级考试模拟试题第一套附答案
四级考试模拟试题第一套
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,mark
Y(forYES)ifthestatementagreeswiththeinformationgiveninthepassage;
N(forNO)ifthestatementcontradictstheinformationgiveninthepassage;
NG(forNOTGIVEN)iftheinformationisnotgiveninthepassage.
Forquestions8-10,completethesentenceswiththeinformationgiveninthepassage.
GulfWrackedByKatrina‘sLatestLegacy-Disease,Poisons,Mold
AmonthafterHurricaneKatrinatorethroughtheU.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.”
OldPollutionResurfacing
PlaqueminesParish,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.”
ProtectionKits
Healthandenvironmentalagenciesareadvisingpeopletoavoidcontactwiththesludge.Theyrecommendthatpeopleweargloves,goggles,anddustmasks,andthattheywashpromptlyifexposureoccurs.
EPAofficialsaredirectingpeopletoitsWebsitetoinformthemselvesofthecontaminationrisks.
Butmostpeoplereturningtotheareadon’thavecomputerstogetthatinformation,saidErikOlson,anattorneyfortheNaturalResourcesDefenseCouncil,anenvironmentaladvocacygroup.
“Ifyou[do]readtheWebsite,”headded,“youpracticallyhavetohaveadegreeinchemistrytounderstandit.”
Tobetterinformpeopleofhealthrisks,theSouthernMutualHelpAssociationandOxfamAmericaaredevelopingaprogramtogiveeveryreturningresidentaprotectivekit.
Eachkitwouldcontainwaterproofsuits,goggles(风镜),shoecovers,andmasks,alongwithinformationaboutpotentialhazards,Volunteerswouldgiveoutthekitsatthesecuritycheckpointsthatnowstandatthemajorentrancestoaffectedcities.
Thegroupshavemadeahundreddemonstrationkits,whichcost
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