ti
theworld
fBGerma
seatabout150millio
hotdogseachJuly4th
CAworldrecordsayssomeo
eate73hotdogsi
10mi
utesDAbout21millio
hotdogsweresoldi
Americai
the1860s
B
Haveyoueverjumpedo
atrampoli
eTodayma
ypeopleuseitforexercise
Backi
the1980sresearchersfou
dthatjumpi
go
atrampoli
ewasagoodwaytohelpastro
autsregai
theirstre
gthActuallytrampoli
i
ghasma
yadva
tagesIthelpsbo
esa
dmusclesgrowa
dimprovesyour
bala
cebystimulati
gthei
erearItisespeciallyusefulfori
creasi
gflowofthelymphaticsystemwhichhelps
yourbodygetridofharmfultoxi
sTrampoli
i
ghasbe
efitssimilartothoseofru
i
gbutwithouttoomuch
stresso
k
eesa
da
klesIfyouwouldliketostarttrampoli
i
gyoumayfirst
eedtoaskadoctortomakesureitsasafeactivityforyouItseasytofi
da
i
expe
sivetrampali
ebutitshouldbewellmadea
dstro
ge
oughtosupportyourweightToavoidaccide
tssometrampoli
eshave8safety
etarou
dthemRememberwhe
everyouareo
atrampoli
ebecareful
ottojump
eartheedgeofit
Hereareafewexercisesforbegi
ers
★HighK
eeLiftRaiseo
ek
eeatatimeLiftyourk
eehighertha
youusuallydowhe
youareru
i
g★StarJumpJumpi
totheaira
dspreadyourarmsa
dlegsi
toastarshapeAsyougai
moreco
fide
ce
practicemoredifficultlevels
★TuckJumpAtthetopofyourjumpbri
gthek
eestothechestwiththearmsholdi
gthelegs
★PikeJumpJumphighbri
gthelegsupa
dpoi
tthetoesforwardTouchyourtoeswithha
ds
Therearema
ymoreexercisesyouca
tryHappytrampoli
i
g
29Accordi
gtothepassagewhatbe
efitca
wegetfromtrampoli
i
g
AIthelpswithbo
egrowth
BItcuresill
essesi
ourk
ees
fCIthelpsreducestresso
musecles
30Howca
wedotrampoli
i
gsafelyABuya
expe
sivetrampoli
e
CChooseatrampoli
ewithouta
et31WhichpictureshowsTuckJump
A
B
DItpreve
tsearsfrombei
ghurt
BJumpi
thece
terofatrampoli
eDLoseweightbeforestarti
gtrampoli
i
g
C
D
32Thispassagei
troduces_______________Aa
exercisetoimproveourfit
essCawaytokeepbala
cewhe
wejump
Ba
exercisetogai
selfco
fide
ceDawaytoavoidaccide
tswhe
exercisi
g
C
Ma
yobjectsi
theu
iversearei
visiblebuttheyse
dradiowavesTheradiotelescopethusappeareda
ditisco
sideredo
eofthegreatesti
ve
tio
si
thetwe
tiethce
turyReberbuilttheworldsfirstradiotelescopei
1937Rylea
dHewishdevelopedradiotelescopesystemsforthelocatio
ofweakradiosourcesa
dtheysharedtheNobelPrizeforPhysicsi
1974
Aradiotelescopeisusuallymadeupof
fO
eormorea
te
astocollecttheradiowavesMosta
te
asaremadei
theshapeofadishtocollecta
d
reflecttheradiowavestothesubreflectori
thesamewayasacurvedmirror