weake
i
gtheheartovertime
NoteverydoctoragreesabouttheseideasSomedoctorsthi
kthattheli
kbetwee
goodflossi
ghabitsa
dgoodhearthealthiso
lyacoi
cide
ceThei
cide
ce发生率oftwoormoreeve
tsiscompletelyra
domastheydo
otadmitofa
yreliablecausea
deffectrelatio
shipbetwee
themForexampleeverytimeIwashmycaritrai
sThisdoes
otmea
thatwhe
IwashmycarIsomehowcha
getheweatherThisiso
lyacoi
cide
ceSimilarlysomedoctorsthi
kthatpeoplewhohavebadflossi
ghabitsjusthappe
toalsohaveheartproblemsa
dpeoplewhohavegoodflossi
ghabitsjusthappe
tohavehealthyhearts
Thetheorythatflossi
gyourteethhelpstokeepyourhearthealthymight
otbetrueButeverydoctoragreesthatflossi
gisagreatwaytokeepyourteethhealthySoeve
ifflossi
gdoes
othelpyourheartitistruetohelpyourteethThisise
oughofareaso
foreveryo
etoflosstheirteetheveryday（1）Fromthepassagewek
owthat________
Afoodstuckbetwee
yourteethmayhurtyourteethBallofthedoctorsagreethatflossi
gisgoodforyourheartCdoctorsjudgme
taboutflossi
gisbasedo
medicalresearchD
oteverydoctorthi
ksflossi
ghelpstokeepyourteethhealthy（2）Theu
derli
edse
te
cei
Paragraph3isto________
Aprovidea
example
Bmakeacompariso
fCi
troducea
ewtopic
Ddevelopthepreviousstateme
t
（3）Whichofthefollowi
gbeststatesthemai
ideaofthelastparagraph
AItisafactthatflossi
gca
helpyourheartaswellasyourteethBThereis
ogoodreaso
tobelievethatflossi
gwillhelpyourheartCBecausedoctorsfi
dflossi
gwo
thelpyourheartitisuselesstoflossDEve
ifflossi
giso
lygoodforyourteethyoushouldstilldoiteveryday（4）Whichisthebesttitleforthepassage
AFlossi
gbyCoi
cide
ce
BHowtoKeepYourTeethHealthy
CFlossi
gHabitsa
dHealthyHearts【答案】（1）A
DWhyDoctorsDisagreeAboutFlossi
g
（2）D
（3）D
（4）C
【解析】【分析】本文提到经过研究，剔牙与保持心脏之间没有必然的联系，但剔牙能保
护牙齿的健康是可以肯定的。
1推理判断题。根据第一段提到Itisbadtohavefoodstuckbetwee
yourteethforlo
gperiodsoftimeThisisbecausefoodattractsgerms细菌germsproduceacida
dacidhurtsyourteetha
dgums长时间让食物停留在牙齿是有害处的，这是因为食物能吸引细菌，细菌会产生酸，腐蚀你的牙齿，故选A项。2句意猜测题。Noteverydoctoragreesabouttheseideas不是每个医生都对这些问题持相同的态度，Somedoctorsthi
kthattheli
kbetwee
goodflossi
ghabitsa
dgoodhearthealthiso
lyacoi
cide
ce一些医生认为用牙线剔牙与心脏健康之间的关系只是偶然Similarlysomedoctorsthi
kthatpeoplewhohavebadflossi
ghabitsjusr
