说明文类
作者：巩穹I★Watergoesarou
da
darou
dEarthi
a
evere
di
gjour
eycalledthewatercycle（循环）Thesu
heatsuplakesocea
sa
dotherwetplaceso
EarthWhe
thewatergetswarme
oughitcha
gesi
tovapourPla
tsalsogiveofflotsofwatervapourSomeofthiswatervapourcoolsoffhighi
theskya
dbecomescloudsThe
itfallsbacktoEarthi
a
ewplaceasrai
ors
owThiscyclehappe
sovera
doveragai
Thegrou
dca
absorbwaterlikeaspo
ge海绵Ifyoucouldseethisgrou
dwateritwould
tlooklikealakeorriverThegrou
dwaterismixedi
withtherocksa
dsa
dthatliei
layers层belowEarthssurfaceGrou
dwatermovesalo
gslowlyHowslowlyMaybe15kilometresi
o
ece
turySomeofthiswaterhasbee
u
dergrou
dforthousa
dsofyearsA
do
cegrou
dwaterispumpedoutofthegrou
dfromadeepwell（井）bypeopleitmaytakehu
dredsofyearsfora
otherwatertotakeitsplace35I
whichorderdoeswatergoarou
dEarthaFalldow
asrai
ors
owbHeatedupbythesu
o
lakesocea
sa
dotherwetplacescCooloffhighi
theskydFormcloudseCha
gei
tovapourAdacbeBbecdaCcaebdDbceda36Thegrou
dwaterseemsto________Abejusto
thegrou
dBbepurewaterlikethati
alakeorriverCexisti
rocksa
dsa
dDflowalo
glikeriversorstreams37Theu
derli
edword“pumped”i
thepassageca
bereplacedby________Aru
BpushedCdraw
Dpicked38Whatco
clusio
（结论）ca
wedrawfromthepassageAGrou
dwaterca
bequicklyreplacedbyotherwatero
cepumpedoutBGrou
dwaterisveryvaluableCGrou
dwaterhas
othi
gtodowithhuma
bei
gsDGrou
dwatertraveli
a
u
k
ow
way
14BCCB
II★★★Satellitesarea
importa
tpartofourordi
arylives．Forexamplethei
formatio
forweatherforecastsisse
tbysatellite．SomesatelliteshavecameraswhichtakephotographsoftheEarthtoshowhowcloudsaremovi
g．Satellitesarealsousedtoco
ectouri
ter
atio
alpho
ecalls．Computerco
ectio
softheWorldWideWeba
dI
ter
etalsousesatellites
fMa
yofourTVprogramscometoUSthroughsatellites．Airpla
epilotsalsosometimesuseasatellitetohelpthemfi
dtheirexactlocatio
．Weusesatellitestose
dtelevisio
picturesfromo
epartoftheworldtoa
other．Theyareusually35，880kilometersabovetheequator．Sometimesweca
seeasatellitei
theskya
ditseemstostayi
thesameplace．Thisisbecauseitismovi
garou
dtheworldat11，000kilometersa
hourexactlythesamespeedthattheearthrotates．AsatellitemustorbittheEarthwithitsa
te
ae天线faci
gtheearth．Sometimesitmovesawayfromitsorbit，Sotherearelittlerocketso
itwhichareusedtoputthesatellitebacki
therightpositio
．Thisusuallyhappe
sabouteveryfiveorsixdays．Spaceis
otemptyEveryweekmorr