专题限时检测(二十六)任务型阅读(三)(限时24分钟)A(2017·苏、锡、常、镇高三三模)Molecules(分子)foundonphonesreveallifestylesecretsWhatdoesyourphonesayaboutyou
Moleculesfoundonmobilephonesrevealanastonishingamountofinformationabouttheowner'shealthandlifestyle—includingtheirfoodpreferencesandmedication
Californianscientistsfoundtracesofeverythingfromcaffeineandspicestoskincreamsandantidepressants(抗抑郁药物)on40phonestheytested
Weleavetracesofmolecules,chemicalsandbacteriaoneverythingwetouch
Evenwashinghandsthoroughlywouldnotpreventthetransfertoeverydayobjects,theresearcherssaid
Usingatechniquecalledmassspectrometry(光谱测定),theUniversityofCalifornia,SanDiegoresearchteamtested500samplestakenfrom40adults'mobilephonesandhands
Theythencomparedthemwithmoleculesidentifiedinadatabaseandproduceda“lifestyleprofile”ofeachphoneowner