阅读理解€~~~~~~~~~~~·
MissEvanstaughtphysicsinaLondonschool.Lastmonthshewasexplainingtoherclassaboutsound,andshedecidedtotestthemtoseehowsuccessfulshehadbeeninherwork.Shesaidtothem,Now,IhaveasisterinWashington.IfIwascallingheronthetelephone,andatthesametimeyouwere20metersawayandlistenedtomefromtheothersideofthestreet,whocouldhearwhatIsaidearlier,mysisteroryouAndwhy
Thecleverestboyatonceanswered,"Yoursister,MissEvans,becauseelectricity(电)travelsfasterthansoundwaves(波)."That'sverygood,MissEvansanswered,butthenoneofthegirlsputupherhand,andMissEvanssaid,Yes,Betty
"Idon'tthinkso.Bettysaid,Yoursisterwouldhearyouearlierbecausewhenit'seleveno'clockhere,it'sonlysixo'clockinWashington."
()1.MissEvanswasteachingherclass__________.
A.aboutsoundB.tohearsomestrangesound
C.aboutelectricityD.howtosaytime
()2.Shewantedtomakeherstudentsknow__________.
A.whethershecouldhearhersisterinWashington
B.whetherherstudentscouldhearherfrom20metersaway
C.whichwasfaster,LondonorWashington
D.electricitytravelsfasterthansoundwaves
()3.Thecleverestboythoughtthat___________.
A.soundwavestravelfasterthanelectricity
B.theywouldhearhersisterinWashingtonfirst
C.MissEvans'squestionwasn'tright
D.MissEvans'ssisterwouldhearherearlier
()4.MissEvans________.
A.thoughtBetty'sanswerwasmuchbetter
B.thoughtthecleverestboy'sanswerwasn'tsogood
C.wassatisfiedwithwhatthegirlhadsaid
D.wassatisfiedwith(对...感到满意)whatthecleverestboyhadsaid
()5.Bettythoughtthecleverestboywaswrong,because_____________.
A.clocksinWashingtonshowedadifferenttimefromthoseinLondon
B.electricitywasslowerthansoundwaves
C.theywereonly20metersawayfromthetelephone
D.electricitytravelsasfastassoundwaves