名校版高考英語綜合訓練題含答案Mostteenagersarestilltryingtofindtheirpassionandpurposesinlife.However,notGitanjaliRao.The15-year-oldgirlhasbeencomingupwithinnovativesolutionstoworldwideproblemssinceshewasten.Itis,therefore,notsurprisingthattheteenagerhaswonthehonorof"America'sTopYoungScientist7".Inthethirdgrade,RaowasinspiredtobuildadeviceafterwitnessingtheshockingstoryunfoldinFlint,Michigan,wherecost-cuttingmeasuresledtotheuseofapollutedriverasthecity'sprimarywatersupplyandincrediblyhighlevelsofleadmadetheirwayintopeople'sdrinkingwater.Aftertwomonths'research,Raodesignedasmallandportabledevicethatusedsensorstoinstantlydetectleadinwater.CalledTethys,aftertheGreekGoddess（女神）offreshwater,itattachestoacellphoneandinformstheresidentsviaanappiftheirdrinkingwatercontainslead.Thedesignearnedherthe3MYoungScientistChallengein2017.SheiscurrentlyworkingwithscientistsandmedicalprofessionalstotestTethys'potentialandhopesthedevicewillbereadyforcommercialuse.Later,Raotookonanothersocialissue-drugaddiction.Herapp,calledEpione,whichwontheHealthPillarPrizeattheTCSIgniteInnovationStudentChallengeinMay2019,isdesignedtocatchdrugaddictioninyoungadultsbeforeit'stoolate.Morerecently,theteenagerhasdevelopedanappnamedKindly,whichusesartificialintelligencetechnologytodetectpossiblesignsofcyberbullying（網上欺凌）.Whenuserstypeinawordorphrase,Kindlyisabletopickitupifit'sbullying,andthenitgivestheoptiontoedititorsenditthewayitis.Itgivesthemthechancetorethinkwhattheyaresayingsothattheyknowwhattodonexttime.Allkindsofawesome,GitanjaliRaohasbeenselectedfrom5,000equallyimpressivenominees（被提名人）forTIMEMagazine'sfirst-ever“KidoftheYear"..WhatgaveRaotheideaofinventingthedeviceTethys?A.Theincidentofleadpollution.B.Theissuewithdrugaddiction.C.Theshortageofwatersupplies.D.Thehighcostofpurifyingwater..WhatisRaoexpectingofTethys?A.It'llremovemetalfromwater.B.It'llmakeittomarketsoon.C.It'llwinherahigherprize.D.It'llbefittedtocellphones..WhatwillKindlyallowuserstodo?A.Receivepre-warningsignalsofthreat.B.Inputwordsintoacomputerautomatically.C.Choosefromsecuresocialnetworkingsites.D.Weightheirwordsbeforepostingthemonline..WhichofthefollowingcanbestdescribeGitanjaliRaoasayoungscientist?A.Ambitiousandhumble.B.Optimisticandadventurous.C.Talkativeandoutstanding.D.Creativeandproductive.ABDDGratitudeismorethanjustsaying“thankyou"tosomeonewhohashelpedusorgivenusagift.It'sadeeperappreciationforsomeoneorsomethingmakingusfeelpositive.Andthispositiveemotioncanbegoodforouremotionalandphysicalhealth,aswellasthehealthofourrelationships.Onereasonforthisisthatgratitudestopsusfromthinkingaboutnegativeemotions.Writinga“thankyou“letter,forexample,shiftsourattentionsothatwefocusonpositiveemotions.Evenifwedon'tshareourwritingwithanyone,theactofcompletingtheexercisealonemakesushappierandmoresatisfiedwithlife.Andthisgetsbetterwithtime.Asweareessentiallytrainingourbraintobemoreintunewithnoticingthepositive,afterseveralweeksormonths,thisbecomesmoreintuitive（直覺的）.Themorew。expressgratitude,themorepositivewefeel.Gratitudecanalsomakeusfeelgoodinourbodies.Studiesprovegratitudecanimprovesleepquality,bettereatinghabits,andreducedinflammation（炎癥）inpeoplewhohavehadheartproblems.Gratitudeisclearlygoodforuszbutisitalsogoodforthepeopleinourlives?Thesimpleansweris"yes”.Whenshared,spokenorwrittengratitudeisaboutfeelingvaluedandhelpingothersfeelvaluedtoo.Feelingvaluedcanhelpbuildstrongerrelationshipswithfamily,partners,friendsorevencolleague.Andthat'sontopofalltheotherwaysgratitudeisclearlygoodforus.Manystudiesshowexpressinggratitudebenefitspeoplealotincludingtheemotional,mentalandphysicalhealthetc.Sowhynotdoso?Let/sstopcountingsheeporcalorieandstartcountingourblessingsinstead.AsanyoneinmainlandBritainwhohaseverattemptedtogrowberriesornutsorindeedfeedthebirds-willknow,doingsoisequaltoanopeningmoveinagameofchesswithlocalgreysquirrels,agamethesquirrelstendtowin.Greysquirrelsarealsofondoftheoccasionalbird'seggortheyoungbird,andenjoytearingandeatingthebarkofyoungbroadleaftrees,whichcaneitherkillthetreesorleavethemopentoinfection.This,apartfromaffectingbiodiversityandlandscape,harmsthewoodindustry.Thelossisnotinsignificant:￡37ayearinEnglandandwalks.Greysquirrels,introducedfromNorthAmericain1876,havealmostreplacednativeredsquirrelsbycompetingthemforfoodandhabitat.Theyarelargerandstronger,andresistanttosquirrelpoxvirus,whileredsarenot.About3milliongreysquirrelsnowliveintheUK;theInternationalUnionforConservationofNatureliststhegreysquirrelamongthetop100mostharmfulinvasive（入侵的）speciesintheworld.InBritain,mucheffortandinventivenesshasbeenmadeinstoppinggreysquirrelprogress；fromtrappingandshootingthem,toreleasingpinemartensintotheirhabitats.Thelatestmove,aworkablesystemforwhichwasthoughttobeadecadeaway,isforbiddingthebreeding（繁殖）ofgreysquirrels.However,legalchallengebroughtsomanydelaysthattheinvasivegreysquirrelpopulationexpandedtoanunmanageablelevelandwipingoutwereabandoned.ThemainissueinBritainwasthoughttobemoretechnologicalthanlegaldesigningadrugthattargetsonlygreysquirrelstopreventtheirbreeding.AnotherpossibilityintheyearsaheadistouseDNAeditingtoensuregreyfemalearebornunabletogivebirth.Greysquirrelshavenowbeenherefornearly150years.TheydoactivelythreatenanotherspeciesinBritain.Thereisastrongargumentthatecosystemschange.Infact,thatistheiressentialnature,anditisunrealistictostopit.Theattractionofcontrollingthebreedingmethodsofgr