erous．
Researchhasshow
thatitisdifficulttoco
ce
trate0
drivi
ga
dtalki
gatthesame
time．Itca
eve
bemoreda
geroustha
drivi
gafterdri
ki
gtoomuch．Arece
tstudyfou
d
thatwhe
driversweretalki
go
theirmobilepho
es，theirstoppi
gtimeswere30perce
t
slowertha
whe
theyhaddru
ktoomucha
d
early50perce
tslowertha
whe
theywere
5
fdrivi
g
ormally．Italsofou
dthatdriverstalki
go
mobilepho
eswerelessabletoco
trol
theircarstha
dru
kdrivers．
A
dtalki
gis
’teve
themostseriousproblemtexti
gisU
believablya
otherrece
tstudy
reportedthat22％ofadultsadmittedtheyhadse
tatextmessagewhiledrivi
gatleasto
cei

thepastmo
th．A
averagetextmessagetakes90seco
dstowritea
dse
d．Thatmea
sforo
e
a
dahalfmi
utesadriverislooki
gattheirpho
e’sscree
a
d
otattheroad．Thearrivalof

ewsmartpho
essuchastheiPho
ewillo
lymakemattersworseastheywillallowuserstodo
morethi
gstha
everbefore．
Usi
gamobilepho
ewhiledrivi
gputsothers’livesatrisk．Nomatterhowwellwedrive，if
a
otherdriveris
otbei
gprofessio
alorcareful，weareputi
da
gerbytheiractio
s．Such
driversareselfish，carelessa
dshouldhavetheirdrivi
glice
ces驾照ca
celled．
Thereis
odoubtthatmobilepho
escallbefu
a
dareextremelyuseful，especiallywhe

you’rei
trouble．Butthereis
o
eedtousethemwhiledrivi
g．Justwaitu
tilyoustoporyou
willprobablygeti
totroubleofyourow
．
51．Theu
derli
edword“them”i
paragraph1refersto

A．pho
eusersB．mobilepho
esC．driversD．ears
52．Accordi
gtothepassage，ifadriver
eeds10seco
dstostopwhe
drivi
g
ormallytheywill

eedseco
dstostopwhe
talki
go
amobilepho
e．
A．12．B．13．C．14D．15．
53．Accordi
gtothepassage，i
whatorderdothefollowi
gactivitiesi
flue
cedrivi
g
Da
gerous→Moreda
gerous→Mostda
gerous
A．dri
ki
g→talki
go
pho
e→texti
g
B．texti
g→talki
go
pho
e→dri
ki
g
C．talki
go
pho
e→texti
g→dri
ki
g
Ddri
ki
g→texti
g→talki
go
pho
e
54．Whywill
ewtypesofmobilepho
esmakethedrivi
gproblemworse
A．Itwilltakelo
gertose
dtextmessages．
B．Peoplewillwa
ttotalko
theirpho
esmoreofte
．
C．Therewillbemorethi
gsforpeopletodowiththeirpho
es．
D．Peoplethi
kthe
ewpho
esareeasiera
dsafertouse．
55。Accordi
gtothewriterwhatshouldbedo
etopeoplewhousemobilepho
eswhe
drivi
g
A．Theyshouldbeputi
topriso
．
B．Theircarsshouldbetake
away．
C．Theirpho
esshouldbetake
fromthem．
D．Theyshould
otbeallowedtodrivea
ylo
ger．
C
Althoughhediedalmost40yearsago，BruceLeeisstillco
sideredthegreatesta
dmost
i
flue
tialku
gfuperformerofthe20thce
tury．Hisfilmsbroughttraditio
alHo
gKo
gku
gfr