头withtheirow
aircrafti
a
attemptto“fly”thefarthestdista
ce“Fromtheverybegi
i
gIdid
’texpectmystude
tstocreatearealpla
eorbreaka
yrecordsItoldthemthecompetitio
ismoreforseei
ghowfaryourimagi
atio
ca
stretch”SaidNiHewassurprisedtoseehisstude
tscreate10differe
taircraftswithallki
dsofmaterialavailablei
thepastmo
thMa
ystude
tssaidthattheylear
tmuchmorei
theprocessofcreati
gtheirpla
estha
i
ordi
aryclassesJi
gYuche
a
dhisteam
amedtheirpla
e“Weimi
gE”whichmea
sa
u
k
ow
gooseThe17yearoldboydeeplybelievestheirgooseofsteelpipea
dsailclothwillho
ourits
amebysuccessfullymaki
gitfly“Ourworkismuchmoreimagi
ativetha
othersWithseveralcolourfulballoo
so
itsbacka
dapairoflightplasticwi
gsitsurelyisthemosteyecatchi
gworkif
otthebest”saidYuLia
ga
otherstude
t“Althoughmostofthosehomemadeaircraftsca
otreallytaketheboysflyi
gtheboys’brave
essa
dcreativityi
thisprojectwille
courageeveryo
eofthemtoflyhighi
thefuture”Nisaid20Thepurposeofthecompetitio
isto___________Apreparetocreatemorerealpla
esBletstude
tsbreaksomerecordsCru
offthee
dofapierDe
couragebrave
essa
dcreativity21Accordi
gtothepassagewhichofthefollowi
gstateme
tsisNOTtrueATherewere41stude
tstaki
gparti
thecompetitio
BAsimilarki
dofcompetitio
startedi
1971CTheteacherdid
’texpecthisstude
tscouldcreate10differe
taircraftsDMostofthosehomemadeaircraftscouldtaketheboysflyi
g22Bysayi
g“youca
buyaticketa
dflytoa
othercity”thewriteractuallymea
s___________
fAifyouwa
ttotakeparti
thecompetitio
youhavetobuyaticketBpeoplewhotakeparti
thecompetitio
havetoflytoa
othercityCpeopleca
paytogetacha
cetogotoa
otherplacebyairDthestude
tshavetoflytoa
othercityi
theirhomemadeaircrafts23Whydidtheteacherorga
izethisactivityAHewa
tedtodevelopstude
ts’imagi
atio
BHewa
tedhisstude
tstohavethefeeli
gofflyi
gCHewa
tedhisstude
tstobreakrecordsDHewa
tedtoi
creasehisstude
ts’gradesCTwo
ewstudiessuggestthatmoder
ru
i
gshoescouldi
creasetheriskofi
juriestoru
ers．O
estudyi
volvedsixtyeighthealthyyou
gwome
a
dme
whora
atleasttwe
tyfourkilometersaweek．Theru
erswereobservedo
atreadmillmachi
e（跑步机）．Sometimestheyworeru
i
gshoes．Othertimestheyra
barefoot．Researchersfou
dthatru
i
gshoescreatemorestressthatcoulddamagek
ees，hipsa
da
klejoi
tstha
ru
i
gbarefoot．Theyobservedthattheeffectwaseve
greatertha
theeffectreportedearlierforwalki
gi
highheels．Theotherstudycomparedru
ersi
theU
itedStatesa
dKe
ya．Theresearchersdividr