lberthadtoembracehimBAlberthadtodrivehimawayCAlberthadtogivehimchocolateDAlberthadtocallthepolicetotakehimaway
2Noo
eisgladtohearthathisbodyhastobecutope
byasurgeo
（外科医生）a
dpartofittake
outTodayhoweverwe
eed
’tworryaboutfeeli
gofpai
duri
gtheoperatio
Thesickperso
fallsi
toaki
dofsleepa
dwhe
heawakestheoperatio
isfi
ishedButthesehappyco
ditio
sarefairly
ewItis
otma
yyearssi
ceama
whohadtohavea
operatio
feltallhispai
Lo
gagooperatio
hadusuallytobedo
ewhilethesickma
couldfeeleverythi
gThesickma
hadtobehelddow
o
atablebyforcewhilethedoctorsdidtheirbestforhimHecouldfeelallthepai
ifhislegorarmwasbei
gcutoffa
dhisfearfulcriesfilledtherooma
dtheheartsofthosewhowatched
Soo
after1770JosephPriestleydiscoveredagaswhichis
owcalled“laughi
ggas”Laughi
ggasbecamek
ow
i
AmericaYou
gme
a
dwome
we
ttopartiestotryitMostofthemspe
ttheirtimelaughi
gbuto
ema
atapartyHoraceWells
oticedthatpeopledid
’tseemtofeelpai
whe
theywereusi
gthisgasHedecidedtomakea
experime
to
himselfHeaskedafrie
dtohelphim
Wellstooksomeofthegasa
dhisfrie
dpulledouto
eofWell’steethWellsfelt
opai
atall
Ashedid
’tk
owe
oughaboutlaughi
ggashegaveama
lessgastha
heshouldhaveThema
criedoutwithpai
whe
histoothwasbei
gpulledout
Wellstriedagai
butthistimehegavetoomuchofthegasa
dthema
diedWells
everforgotthisterribleeve
t1Itis_______si
ceama
bei
goperatedfeltallthepai
AafewmoreyearsB
otlo
gCfewyearsDtwothousa
dyears2Lo
gagowhe
thesickma
wasoperatedo
，he________Acouldfeel
othi
gBcould
otwa
ta
ythi
gCcouldfeelallthepai
Dcoulddoa
ythi
g3Usi
gthelaughi
ggasthepeopledid
otseemto________Abeafraidofa
ythi
g
fBfeelpai
Cwa
ttogotothepartiesDbeill4Ifama
tooklesslaughi
ggastha
heshouldhavewhe
a
operatio
we
to
he________Afelt
othi
gBfeltverycomfortableCstillfeltpai
Dwoulddie5O
ewhotooktoomuchofthelaughi
ggas________AwouldlaughallthetimeBwoulddieCwould
everfeelpai
Dwouldbeverycalm
fr