全球旧事资料 分类
gThesymptomswere
earlyalwaysexperie
cedforthefirsttimeduri
gsummerCruciallysomerecalledhavi
gbee
bitte
byatick蝉whichfeedsmostlyo
thebloodofmammalsa
dbirds
By1977i
vestigatorsco
firmedthatthedeertickwasrespo
sibleBut
oo
ecouldsaywhyitwascausi
gtheill
essorhowpatie
tscouldbetreatedI
1982ascie
tist
amedWillyBurgdorferdiscoveredaspecifictypeofbacteria细菌carriedbythedeertickwhichwascausi
gthediseaseButhowdidthedeertickacquirethebacteriai
thefirstplaceFi
allyscie
tistsdetermi
edthatthetickspickedupthebacteriafromtheirhostsAsits
amesuggeststhedeertickofte
feedso
deercarriersoftheLymediseasebacteriaScie
tistsco
cludedthatthebacteriapassedfromwildlifetotickstohuma
sAlllivedcloselyamo
go
ea
otheri
thearea
Howcouldadiseasefromacommo
parasite(寄生虫)spri
gupsosudde
lyMa
yareasofthe
ortheasti
cludi
gLymewereo
cefarmla
dThefarmla
dwasrepla
tedwith
试卷第6页,总11页
ftreesAftertheforestgrewi
theareawasthe
developedwithhousesGradually

eighborhoodspusheddeeperi
tothehabitatofdeerticksa
dmoreimporta
tlythewildlife
theyfedupo
Ashuma
se
cou
teredmoretickstheybecamemorelikelytoco
tractthe
disease
O
eoftheremai
i
gmysteriesaboutLymediseaseiswherea
dwhe
ittrulybega
This
puzzlemay
everbesolvedTodayLymediseaseifcaughtearlyiseasilytreatedwith
a
tibioticstha
kstothehardworkofma
yscie
tistsdoctorsa
dpatie
ts
38.Whichofthefollowi
gmethodhelpedDrSteerea
dDrMalawistamost
A.Co
ducti
gpatie
ti
terviews
B.Carryi
goutafieldsurvey
C.Studyi
gpatie
ts’bloodsamples
D.Separati
gpatie
tsi
toagegroups
39.Fromthepassageweca
lear
that_______
A.deertickswerefirstcarriersoftheLymediseasebacteria
B.patie
ts’remembra
ceoftickbiteswasvitaltothemedicaldiscovery
C.Lymediseasespreadbecausedeerticksa
dhuma
sbothfedo
deer
D.Lymediseaseislesscommo
owbecausepeoplespe
dlesstimeoutdoors
40.Whatdotheu
derli
edwords“spri
gup”i
Paragraph5probablymea

A.Worse

B.Retur

C.Appear
D.Decrease
41.Whichofthefollowi
gwouldbethebesttideforthepassage
A.ADesperateNeed
B.A
U
solvedPuzzle
C.AMedicalMystery
D.A
EffectiveTreatme
t
Ifthere’so
ecliche(陈词滥调)thatreallya
oysDa
ahBoydaspecialistresearcherwhohasmadeacareerfromstudyi
gthewaytee
agersusethewebit’sthatofthedigital
ative“Todaytheworldhascomputermediatedcommu
icatio
sThusi
ordertolear
abouttheirsocialworldarou
dthemtee
agersarelear
i
gaboutthosethi
gstooA
dthey’reusi
gthattoworkoutthestuffthatkidshavealwaysworkedout:peer(同龄人)socialitystatusetcr
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