ada
dburiedCstillpartoftheprese
t
（）61I
thedaysoftheEmpire，theRoma
gover
me
twasprobably_______Astro
g（BdividedCweakDpoor
）62Whathappe
edfirst？BTheRoma
Empirefellapart
ALo
di
iumwasa
outpost
CThecityofRomewasfou
dedDLo
do
becamethece
terofa
empireDWhe
waterisheatedu
tilitboils，bubblesofgasappeara
drisethroughthe
fhotliquidWhe
a
electriccurre
tpassesthroughwateri
aprocesscalledelectrolysis（解），bubblesofgasappeara
drisethroughtheliquidSuperficially（表面地），thetwoeve
tsappearsameIfthegasfromtheboili
gwaterisexami
ed，itspropertiesarefou
dtobethesameasthoseofthewater，Thus，ifthesteamiscooledtoroomtemperature，aliquidisformedwhichisi
disti
guishablefromtheorigi
alwaterWhe
，however，thegasfromtheelectrolysisequipme
tiscooledtoroomtemperature，itremai
sagasrathertha
becomi
galiquidNorwillit，atzerodegreesce
tigradeorbelow，tur
tosolid，aswillthegasfromboili
gwater，Thesetwoprocesses，boili
ga
delectrolysis，haveclearlyresultedi
productswithquitediffere
tpropertiesI
boili
g，thegasdoes
otreprese
ta
ewsubsta
ce，buto
lyadiffere
tstateoftheorigi
alsubsta
ceElectrolysis，o
theotherha
d，hasge
eratedaproductwhichisa
ewsubsta
ce，orpossiblyamixtureof
ewsubsta
cesAcha
gei
stateasreprese
tedbygoi
gfromaliquidtoagaswithouttheproductio
of
ewsubsta
cesi
calleda“physicalcha
ge”。However，whe
aprocesstakesplacethatproduces
ewsubsta
ces，thisiscalleda“chemicalcha
ge”ora“chemicalreactio
”。I
achemicalreactio
，thei
itialsubsta
cesarereplacedbya
ewsetofsubsta
cesorproducts（）63Whichofthefollowi
gisthebesttitleforthispassage？BPhysicala
dChemicalCha
gesDWaterTemperatures
AElectrolysis
CDiffere
tTypesofWater
（）64Atatemperatureslightlyabovezerodegreesce
tigrade，whichofthefollowi
gistrueofgasproducedbyelectrolysis？AItdoes
otbecomeliquidCItbecomesasolid（BItca
otbedisti
guishedfromwater
DItexpa
dsgreatly
）65Thepassageisdevelopedi
thewayof________B
arratio
Dlisti
gexamples
Aargume
tatio
Ccompariso
五、补全对话（共5句；每句满分为3分，共15分。）根据中文提示，将对话中缺少的内容写在线上。这些句子必须符合英语表达习惯，打句号的地方，用陈述句；打问号的地方，用疑问句。
f提示：Wilso
太太的丈夫生病了，发烧，头疼德厉害。她打电话给格林医生，请他们到家里来一趟。格林医生简单询问情况后，答应马上就到。MrWilso
：Hello，thisisAliceIsDrGree
there？DrGree
：Yes，_________66________MrWilso
r
