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1、ModelTestThreePartⅠWritingDirections:Forthispart,youareallowed30minutestowriteashortessayentitledAShoppingMallintheNeighborhood.Youshouldwriteatleast120wordsfollowingtheoutlinegivenbelow:1．据称，在你所在的社区将建立一个大型的购物中心；2．发表你的意见并说出支持或反对的理由。AShoppingMallintheNe
2、ighborhoodPartⅡReadingComprehension(SkimmingandScanning)Directions:Inthispart,youwillhave15minutestogooverthepassagequicklyandanswerthequestionsonAnswerSheet1.Forquestions1—7,choosethebestanswerfromthefourchoicesmarkedA),B),C)andD).Forquestions8—10,com
3、pletethesentenceswiththeinformationgiveninthepassage.GeneticTestingGenetictestingistransformingmedicineandthewayfamiliesthinkabouttheirhealth.AsscienceuncoversthecomplicatedsecretsofDNA,wefacedifficultchoicesandnewchallenges.AboutGenetictestingTheyearw
4、as1895andPaulineGross,ayoungactress,wasscared.Grossknewnothingaboutthehuman-genome(基因组，染色体组)project—suchmedicaltriumphs,butshedidknowaboutanastydiseasecalledcancer,anditwasrunningthroughherfamily."I'mhealthynow,"sheoftentoldDr.AldredWarthinfromattheUni
5、versityofMichigan,"butIfullyexpecttodieanearlydeath."Atthetime,Gross'spredictionwasbasedsolelyonobservation:familymembershaddiedofcancer;shewould,too.Today,morethan100yearslater,Gross'srelativeshaveamuchmoreclinicaloption:genetictesting.Withasimplebloo
6、dtest;theycanpeerintotheirownDNA,learning—whilestillperfectlyhealthy—whethertheycarryaninheritablegenemutation(突变)thathasdoggedtheirfamilyfordecadesandputsthematseriousrisk.TaketheTestingTestingisakindofthegenomicrevolution.Amajorgoalistocreatenewsophi
7、sticatedtherapiesthathomeinonadisease'sbiologicalsource,thenfixtheproblem.Already,genesarehelpingtopredictapatient'sresponsetoexistingmedications.Aprimeexample,takenbyDr,WylieBurkeoftheUniversityofWashington,isavariantofagenecalledTPMT,whichcanleadtoli
8、fe-threateningreactionstocertaindosesofchemotherapy(化学疗法).Agenetictestcanguidesafeandappropriatetreatment.Twogeneshavebeenidentifiedthatinfluenceaperson'sresponsetotheanti-blood-clottingdrug.Andscientistsareuncoveringgeneticdifferencesi
