Book3
Module2Developi
ga
dDevelopedCou
tries
GrammarLi
kWords__________________________
ILear
i
gObjectives1Tobeabletoremembertheli
kwords2Togettok
owthediffere
cesbetwee
theli
kwords3Tobeabletofi
ishthepracticecorrectly
IILear
i
gProcedureLi
kWords连词：buthoweveralthoughwhileStep1Lear
aboutthemea
i
gsa
ddiffere
cesamo
gtheli
kwordsBUT连接两个并列分句Ho
eyissweetbutthebeesti
gsIoughttohavehelpedherbutIevercould2连接两个并列成分Theyseethetreesbut
ottheforest
He
olo
gerfeltdisappoi
tedbuthappya
dhopeful3后接状语Hetriedtosaveitbuti
vai
Hegla
cedaboutbutseei
go
lytheemptyroom
HOWEVER1多插在句子中间Hisfirstrespo
sewastosay
oLaterhoweverhecha
gedhismi
d
Salesarepoorthismo
thTheremayhoweverbea
i
creasebeforeChristmas2有时也放在句首或句尾I’llofferittoTomHoweverhemay
otwa
titYouk
owallthisaswellasIdohowever
ALTHOUGH常用来引导让步状语从句与though同义Althoughitwasbarelyfouro’clockthelightswerealreadyo
HesaidtheyweremarriedalthoughI’msuretheyare
’tHe’sverylovablealthough
otatalltidy
WHILE
常用来引导状语从句，表示对比、让步、时间等。
Somecou
triesarerichwhileothersareextremelypoor

Idoeverysi
glebitofhouseworkwhilehejustdoesthedishes
owa
dagai


WhileIacceptthathes
otperfecti
ma
yrespectsIdoactuallyquitelikethema



Strikewhiletheiro
ishot

IthoughtIheardhimcomei
whilewewerehavi
gdi
er

Step2Expla
atio
sa
dPracticeAChosetherighta
swer1Heisveryyou
g_____hek
owsalotaboutcomputer
Aa
dBhoweverCbutDwhile2Excusemeforbreaki
gi
_____Ihavesome
ewsforyou
1
fAso
Ba
d
CbutDyet
3Somepeoplewastealotoffood_____othershave
’te
oughtoeat
Ahowever
Bwhe

Cas
Dwhile
4_____hehadtowriteahistorypaper_____hecould
’tfi
dtimetodoit
AAlthoughbut
BAlthough
CEve
thought
DEve
if
BTra
slate
1他个子矮而他兄弟个子高。
______________________________________________________________________
2他很努力，然而还是失败了。
______________________________________________________________________
3痛得厉害，可是他并不呻吟。
______________________________________________________________________
Step3Compariso
a
dsummaryWhile做连词除引导时间状语从句外，还可以表示前后句之间的对比转折。由although引导的让步状语从句，可译为“虽然”。常用于句首，且不与but连用。However放于句首句尾句中都可以但有逗号与之隔开。But转折意义更强烈既可以连接两个句子又可连接句子中的两r