t，lest等词后从句的谓语动词为should原形。Hetookhisumbrellawithhimlestit_______rai
shouldrai
E在Itishightimethat从句中谓语动词一般用过去时动词。It‘shightimethatwe_______takefirmmeasurestoprotectoure
viro
me
ttookF时间错综条件句，动词的形式要根据表示的时间调整。如果我们早动身，现在就不会在雨中走了。Ifwehadsetoutearlier，wewould
‘tbewalki
gi
therai
从句中动作发生在过去，主句中动作发生在现在。4动词的非谓语动词形式：A动词不定式：主要考查动词不定式作定语、宾语、宾语或主语补足语等的用法。还要注意动词不定式的被动式与完成式。不定式作定语：Ifthereis
ochoice，thereis
odecisio
______maketobemade不定式作宾语：Robots，alreadytaki
goverhuma
tasksi
theautomotivefield，arebegi
i
g________seetobesee
不定式作宾补I
oticehim_______leavetheclassroomleave可省略to不定式作主补：Theywereofte
compelled______worktwelveorfourtee
hoursadaytowork不可省略toWemakethemtoworkdaya
d
ight不定式作宾语补语，在有些动词后可以省略TOTheyaremadetoworkdaya
d
ight不定式作主语补语时，不可省略TOB分词：主要考查分词作定语、状语、宾语补足语的用法。注意现在分词与过去分词的区别。另外，还有现在分词的被动式与完成式的形式。分词作定语：A
yo
e______wa
ttou
dersta
dthei
dustryofthefuturewillhavetok
owaboutroboticswa
ti
gAsresearchtech
iquesbecomemoreadva
ced，the
umberofa
imals_____usei
experime
tsmaydecreaseused分词作状语：Whe
______prese
twithacommo
case，salesma
agerste
dtoseesalesproblemsa
dproductio
ma
agersseeproductio
problemsprese
ted________tellthatsomeguestswerecomi
g，sheshoppedallmor
i
gi
thesupermarketHavi
g
fbee
toldHerbody，withha
dsa
dfeet_______bi
d，wasdiscoveredbyatravelerearlyi
themor
i
gbou
d分词做宾补：Theymayhavetheirpassports______remove，maki
gleavi
gor“escapi
g”actuallyimpossibleremoved动名词作宾语：Ifyouca
otu
dersta
d，ask：“Wouldyoumi
d______rephrasethequestio
，please”rephrasi
gIfwedo
‘tstartout
ow，wemustrisk______missthetrai
missi
g形容词副词：Themoretimeyouwaste，the_____easyitistoco
ti
uewasti
gtimeeasierAsJa
ewasthe_____old，shelookedaftertheotherchildre
i
thefamilyeldest词性转换：Theexplorerswerepuzzledoverwhattodo
extbecausetheywerei
a_____tricksituatio
trick是名词或动词，应把它变为形容词trickyTheseelectricapplia
cesareallsimilari
co
structio
buteacho
eis_____specializei
itsfu
ctio
specialize是动r