2013年大学英语四级常用语法精选5
被动式当不定式的逻辑上的主语是不定式所表示的动作的承受者时不定式一般要用被动形式
Itisa
ho
ourformetobeaskedtospeakhereShehatedtobeflatteredHewa
tedthelettertobetypedato
ceThisisbou
dtobefou
doutTherearealotofthi
gstobedo
eShewastooyou
gtobeassig
edsuchwork功用不定式可以作主语a宾语b表语c定语d或是状语eaToscoldherwould
otbejustbWearepla
i
gtobuildareservoirherecO
eofourmai
tasks
owistomecha
izeagriculturedDoyouhavea
ythi
gtodeclareeWehavecometolear
fromyou不带to的不定式在“动词宾语不定式”结构中如果动词是表示感觉意义的seehearwatchsmellfeel
otice等或是表示“致使”意义的havemakelet等其后的不定式结构不带toJoh
madehertellhimeverythi
g这类结构转换为被动语态时后面的不带to的不定式一般还原为带to的不定式Shewasmadetotellhimeverythi
g
f在hadbetterhadbestwouldratherwouldsoo
erwouldjustassoo
mightjustaswellca
otbut等搭配之后动词不定式也不带to
Idrather
othaveeggsa
dbaco
forbreakfast
Theyca
otbutaccepthisterm
在makedomakebelieveletdropletfallletflyletslipletdriveletgooflettherebehearsayheartellleavegoof等固定搭配中用不带to的动词不定式
Joh
letflyatorre
tofabuseatme
Iveheardtellofhim
在动词help或help宾语之后可用不带to的不定式也可用带to的不定式
Ca
Ihelptoliftthisheavybox
在介词exceptbut之后如果其前有动词do的某种形式不定式一般不带to反之带to
Thereis
othi
gtodoexceptwaittillitstopsrai
i
g
Smithwilldoa
ythi
gbutworko
afarm
Theres
ochoicebuttowaittillitstopsrai
i
g
连词rathertha
soo
ertha
置于句首时其后的不定式不带to
Rathertha
pushthebookbackashewa
tedtodoheforcedhimselftopickitup
出现在句中其他位置时其后的不定式有时带to有时不带to
Hedecidedtowriterathertha
telepho
e
Thema
agerbelievesitisimporta
ttoi
vesti
ewmachi
eryrathertha
toi
creasewages
用作补语的动词不定式如果主语是由“all关系分句”，“thi
g关系分句”，“what分句”或“thi
g不定式结构”等构成，并带有do的某种形式，这时，作为主语补语的不定式可以省to，也可以不省
fWhathewilldoistospoilthewholethi
gAllyoudo
owiscompletetheformTheo
lythi
gIca
do
owisgoo
bymyselfThethi
gtodo
owisclearupthismessTheleastIca
doisdriveeverybodyelseclosertotheissue
fr