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1、Ifdoctorswanttotestyouforsomething,阅读理解答案 Ifdoctorswanttotestyouforsomething,they’llusuallytakeabloodorurinesample(尿样).Butwouldn’titbemuchmoreconvenientiftheyjustaskedyoutobreathethroughaspecialinstrument Infact,yourbreathcansayalotaboutyou.IntraditionalChinesemedi
2、cine,doctorsdrawaconclusionaboutthehealthstateofapatientbasedonthesmellofhisorherbreath;traineddogsandratscanidentifythesmellsofthebreathsofpeoplesufferingfromcertaincancers;trafficpolicealsomonitordrivers’alcoholconsumptionbytestingtheirbreaths. Justlikebloodanduri
3、ne,yourbreathcontainslotsof“metabolites”—thewastechemicalsthatthebodyproduces,whichvaryfrompersontoperson.Theyarelikepersonalhealthfingerprints,whichiswhyscientistssometimescallthem“breathprints”,accordingtoScienceDaily. Comparedtobloodorurinetesting,breathtestingta
4、kesonlysecondsinsteadofhours,anditrequiresneitheraneedlenoracontainertoholdthebodyfluids(液).Thismeansthetestcanbetakenfrequentlytobetterdetectearlysignsofdiseasesandmonitortheprogressofamedicaltreatment. Ontheotherhand,asanidentifier,youmightthinkthatbreathsarenotas
5、reliableasfingerprintssincetheymightchangebasedonwhatyoueat.However,researchersinZurich,Switzerlandmapped11healthyvolunteers’chemicalpatternsbyhavingthembreathethroughaspecialinstrument,andtheyfoundthateachpatternwasuniqueandthepatternsdidn’tchangemuchthroughouttheda
6、y,reportedBBC. “Ourgoalistodevelopbreathanalysistothepointwhereitbecomescompetitivewiththeestablished(早已确立的)analysisofbloodandurine,”saidMalcolmKohler,professorattheUniversityHospitalZurich. tothetextweknowthat______. A.breathvariesfrompersontopersonbasedonfood B
7、.yourbreathmaygiveyouawayifyouarenotcareful C.doctorscantestone’sbreathtofindabouthisillness D.traineddogscanidentifypeoplewithcertaincancers 26.Incomparisonwithbloodorurinetesting,breathtestingis_______. A.comfortableandconvincingB.traditionalandreliable C.accu
8、rateandcompetitiveD.quickandconvenient istheauthor’sattitudetowardbreathtesting A.Doubtful.B.Approving. C.Unconcerned.D.Worried.
