2019高考英语一轮达标Unit1GreatScientists练题含解析新人教版必修5（含解析）120

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1、【人教版】2019高考英语一轮达标试卷GreatScientists一、阅读理解.阅读下列短文，从每题所给的四个选项(A、B、C和D)中，选出最佳选项.AgunmankilledtwomembersofatelevisionnewscrewintheUnitedStatesearlierthisweek.TheirTVstationbroadcasttheshooting“live”inrealtime.TheshootingshockedmanyAmericansandpeoplearoundtheworld.OneUSteenagerwantstohelppreventsuchattac

2、ks.KaiKloepferlivesinBoulder，Colorado.Hehasatalentfortechnology.Hehasbeenteachinghimselfengineeringskillssincehewasachild.Hearingofsomanygunattacks，hedecidedtousehisskillstohelppreventmassshootings.Theyoungman'sgoalwastomakeagunthatwouldnotworkinthehandsofakiller.Butheknewitwouldbeimpossibleforhimt

3、ostopdangerouspeoplefrombuyingguns.Sohechangeddirection.Hedecidedtocreateagundesignedtopreventaccidentalshootings.ThegunKaiKloepferdesignedonlyworkswhenunlockedbythefingerprintoftheowner，andnotbyanyoneelse.Thegunonlyrecognizesthetouchofitsowner.Ittooktheteenagersevenmonthsandover1，500hourstocreatea

4、plasticmodelofhis“smartgun”．Heenteredhisfingerprinthandguninalocalsciencefairandwon.Hisawardincludedafinancialprize.Hereceived$50，000.Themoneyisto【人教版】2019届高考英语一轮达标卷：全一册练题【人教版】2019高考英语一轮达标试卷supportimprovementingunsafety.KaiKloepferisnow18yearsold.Hehasbeenusingthegrantmoneytoimprovethetechnology.He

5、saystheweaponhedesigneddoesn'tchangethefunctionofafirearmatall.Itjustmakesitsafer.Heisnowworkingtoaddthefingerprintlocktechnologytoarealgun.Hesaysheexpectstoonedayseehis“smartgun”forsalenexttootherfirearms.Theyoungmanplanstospendthenextyearimprovinghisfingerprinthandgun.Thenhewillstartcollegeatoneo

6、ftheworld'stopuniversities—theMassachusettsInstituteofTechnology.1．WhydoesKaiKloepfertrytoinventthegun?A．Topreventpeoplefrombuyingguns.B．Toprotectpeople'slives.C．Tolimitfunctionsofagun.D．Toreducepowerofagun.2．TheguncreatedbyKaiKloepferiscontrolledbytheowner'sfingerprintto________.A．keepitconvenient

7、touseB．makeitsafetocarryaroundC．protectitsownerfromharmD．avoidbeingusedbyothers3．HowistheprogressofKaiKloepfer'sguninvention?A．Itisbeingshowninafair.B．Itisunderfurtherresearch.【人教版】2019届高考英语一轮达标卷：全一册练题【人教版】