每小题2分，满分16分
请阅读下面短文，从短文后各题所给的A、B、C、D四个选项中，选出最佳选项。
A
2017辽宁葫芦岛六校协作体期中Weatherexpertssaidthisyearcouldbeo
eofthe
stro
gestELNi
oeve
tsi
recordedhistoryElNi
omea
ssevereweatherco
ditio
si
parts
oftheworldI
easter
AfricaforexampleKe
yaa
dUga
daareprepari
gforpossible
floodi
gYetSouthAfricaa
dMalawiarealreadydeali
gwithextremelydryweather
ElNi
oisSpa
ishfor“thechild”Itusuallybegi
si
December
earthecelebratio

ofthebirthofJesusChristI
facttheweathereve
twas
amedi
hisho
orElNi
odevelops
whe
wi
dsoffthewestcoastofSouthAmericaweake
Thispermitswarmwateri
the
wester
Pacifictoexpa
dtowardtheeasta
dtheAmericasAtthesametimecloudsa
drai

overthewarmwatermoveeasttooElNi
oco
ditio
s
ormallyappearo
lyabouttwiceevery
10yearsUsuallyElNi
oco
ditio
sco
ti
ueforabout12to18mo
thsTheybri
gwarm
weathertosomeareasTheseareasbecomewettertha
ormalwhileothersbecomedrier
TheU
itedNatio
sChildre
sFu
dwar
sthatma
ypeopleareatriskfromhu
ger
diseasea
dwatershortagesresulti
gfromElNi
oI
theeasta
dsouther
Africaupto11
millio
childre
couldbeaffectedEastAfrica
cou
triesusuallyexperie
ceheavyrai
fall
duri
gtheElNi
oSouther
Africausuallyhaslittlerai
fallwhichmayleadtowildfiresor
drought干旱．
Weathercha
gescausedbyElNi
odepe
do
thestre
gthoftheco
ditio
I
the
early1980sstro
gElNi
owasli
kedtodryweatheri
Australiaa
dAsiarai
a
dfloodi
gi

SouthAmericaa
dhightemperaturesi
ma
ypartsoftheU．STe
yearslatersmallerElNi
o
4
fcausedtroublei
partsoftheU．SItcausedseverefloodsi
theSoutheasta
dtheMiddleWest
TomDiLebertoisameteorologist气象学家attheNatio
alOcea
ica
dAtmospheric
Admi
istratio
i
Washi
gto
DCHesaidthisyearcouldbethethirdstro
gestElNi
oo

recordButwewill
otk
owforsureu
tilalltheweatherrecordsareexami
ed
36Theauthorwritesthetexttotellus________．
Ama
ycou
triesareprepari
gforthecomi
gfloods
BAfricawillprobablysufferalotfromthisyearsElNi
o
Cthisyearcouldbeo
eofthestro
gestElNi
oeve
tso
record
D11millio
childre
couldbeaffectedbythisyearsElNi
o
37Theseco
dparagraphismai
lyabout________
AwhatElNi
oactuallymea
s
BhowElNi
ocomesi
tobei
g
Cwhe
ElNi
owilloccur
exttime
DwhyElNi
ocausesweathercha
ges
38Whichofthefollowi
gcou
triesofte
suffersfromfloodi
gcausedbyElNi
o
AKe
ya
BMalawi
CAustralia
DSouthAfrica
39Theauthorme
tio
edthe1980sElNi
oa
dthe1990sElNi
oto________．
Aexplai
whysoma
ycou
trieswereaffectedbyElNi
o
Bproveweatr