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1、Healthyeating李仕才一、阅读理解。（2018•广西重点高中模拟）Poop1elovecellphones,whichiswhynineintenAmericansownone.Butdoesheavyuseofcellphonesposeariskofcancer?Thisquestionhascausedcontroversyformanyyears.Anewstudyinratsnowaugnientsthoseconcerns.Itsdatalinkedlong-term,intense
2、exposuretoradiationfromcellphoneswithanincreasedriskofcancerintheheartorbrain.Theresultshaveyettobeconfirmed,theauthorsnote・Indeed,althoughtheratstudyfoundalinkbetweencellphoneradiationandcancer,itoffersnocluestowhysuchalinkmightexist,notesJonathanSamet.H
3、eteachespreventativemedicineanddirectstheInstituteforGlobalHealthattheUniversityofSouthernCaliforniainLosAngeles.Still,hecalIsthenewstudysfindings“significant”•Theycouldleadtostudiesresearchinghowcellphoneradiationmightcausecancer,hesays.Phonesignalsarere
4、layedbetweencelltowersandcellphonesviaradiowaves.Thisradiofrequency—orRF—radiationisatypeknownasnon-ionixing（非电离白勺）.UniikeX・rays,norrionizingradiationdoesnotdepositenoughenergyintocellstoreleaseelectronsfromatomsormolecules,producingions.Soittendstobefarl
5、ossharmfulthanionizingradiation,suchasX-rays.ButthatdoesnotmcanradiowavesmightnotcauseharmTnvery1argedoses（ft）thisradiationwillheatthebodyandcausetissuedamage.Butit，snotyetknownwhatmuch1owerRFlevelsmightdo,suchasthosefromcellphoneuse・Fiveyearsago,theWorld
6、HealthOrganization，sInternationalAgencyforResearchonCancer,orIARC,concludedthatcellphoneuse“ispossiblycarcinogenic（致癌的）”•Itsconelusionwasbasedonwhatlittieresearchdatawasavailableatthattime.ButnoticethatIARCwasnotcertain.Itsaidonlythatphoneusemight"possibl
7、y”causecancer・SoscientistsattheNationalToxicologyProgram,orNTP,investigatedfurther.【解题导语】本文是一篇说明文。人们喜欢用手机，90%的美国人都有手机。那么,过度使用手机是否会有患癌的风险呢？一项新的研究给出了一些线索。1.Whichofthefollowingcanreplacetheunderlinedword"augments”?referstoB.putsoutD.addstoD解析：词义猜测题。画线词前面提到过度
8、使用手机是否有患癌的风险这一问题多年來引发的争议不断，再根据画线词后的"concerns”和"Ttsdatalinkedlong-term,intenseexposuretoradiationfromcellphoneswithanincreasedriskofcancerintheheartorbrain."可知，现在一项在老鼠身上进行的新研究增加了那些忧虑。故画线词与addsto意义相近。2.Inwhichaspectdo
