例1I________asleepi
thecor
erforIremember
othi
gofwhathappe
edduri
gthe
ightAmightfallBmustfallCmusthavefalle
Dca
havefalle

★ca
’tcould’t表示否定的推测意思是“不可能”
do
对现在情况的推测
ca
’tcould
’t
2
f……………………………………………………………最新资料推荐…………………………………………………
havedo
e对过去情况的推测
★maymight
ot表示可能性很小的推测意思是“也许”
do
对现在情况的推测
maymight
havedo
e对过去情况的推测
3情态动词的完成时虚拟语气的用法

eed
’thavedo
eshouldhavedo
eshould
othavedo
eoughttohavedo
ecouldhavedo
e
4考试小窍门在遇到情态动词加完成时和情态动词加原形同时出现的情况下词加完成时是正确答案。×Mustdo√Musthavedo
e三、虚拟语气考试重点1条件句中的虚拟语气例IwouldaskGeorgetole
dusthemo
eyifI______himAhadk
ow
Bhavek
ow
Ck
ewDwouldk
ow
一般说来情态动
例Ifabettermaterial______thestre
gthofthepartwouldhavebee
i
creasedAhadbee
usedBhadbee
usi
gCbei
gused
Dusi
g条件句中的虚拟语气需要注意以下三点
如果条件句中有werehadshould时可以把if省略然后把这三个单词提前形成倒装。例3_____theadviceofhisfrie
dshewould
othavesufferedsuchaheavylossi
hisbusi
ess
AIfhetookBifheshouldtakeCWerehetotakeDHadhetake

含蓄条件句中虚拟语气的应用三级考试中经常出现的三个句型Butforwithoutotherwiseorbutthough
3
f……………………………………………………………最新资料推荐…………………………………………………
例ButforyourhelpI_____theworki
timeAdid
otfi
ishBcould
otfi
ishAwill
otfi
ishDwould
othavefi
ished
例Withoutelectricityhuma
life_____quitediffere
ttodayAisBwillbeCwouldhavebee
Dwouldbe例Hewasverybusyyesterdayotherwisehe_____tothemeeti
gAwouldhavecomeBwouldcomeCcouldcomeDhadcome
例Wewouldhavemadealotofmo
eybutwehalfway
AgaveupBhadgive
upCwouldgiveupDweretogiveup
错综时间条件句例IfIwereyouIwould
othavemissedthefilmlast
ight
2should动词原形在某些从句中的应用1当宾语从句从的谓语是suggestrequesti
sistdesiredema
dproposeordercomma
darra
ge等动词时如例Isuggestedthatweshouldgothereo
foot注意当i
sist表示坚持认为之意时不用虚拟语气用陈述语气如例Thema
i
sistedthathehad
everstole
themo
ey
2Itisordereddesireddecidedrequestedstra
geimporta
t
atural等后的主语从句中例Itisdesiredthatweshouldr