45　不帶to的不定式　Track43

在下列幾種情況下不定式要省略to：
（1）在以下動(dòng)詞的復(fù)合賓語(yǔ)中
1）感官動(dòng)詞：see，hear，watch，notice，feel，observe
2）使役動(dòng)詞：let，make，have
a.The teacher has us write a composition every week.
b.I saw a man enter the shop.
c.They are going to have the serviceman_________an electric fan in the office tomorrow.
A. install
B. to install
C. to be installed
D. installed
正確答案：A。
d.The minister had his secretaries_________a press conference.
A. arrange
B. to arrange
C. arranging
D. arranged
正確答案：A。
若上述動(dòng)詞轉(zhuǎn)換為被動(dòng)結(jié)構(gòu)，其后不定式中的to不能省略。
e.A man was seen to enter the shop.
3） help, listen to, look at后邊的動(dòng)詞不定式可用to，也可不用to。
a.Would you like to listen to me (to) read the poem?
b.The teacher will help you (to) study English well.
（2）在下列一些短語(yǔ)句型中
had better　would rather　would sooner
would just as soon　might (just) as well　cannot but
cannot choose but　cannot help but
a.I cannot but admire his courage.
b.We might as well put up here for tonight.
c.It all started so innocently that warm June night, when I first met you, you looked so beautiful and lovely that I couldn't help but fall in love with you, even though we both agreed our worlds were far apart, and could never be one.
（3）在rather than，other than，than后
a. Rather than wait anymore, I decided to go home by taxi.
b. Rather than go on with his work, he went home.
c.No one could do other than admire it.
d.To my great surprise, she preferred to give herself up_________herself.
A. than hiding
B. rather than to hide
C. to hiding
D. rather than hide
正確答案：D。
e.In the course of a day students do far more than just_________classes.
A. attend
B. attended
C. to attend
D. attending
正確答案：A。
（4）在Do nothing/anything/everything but do句型中
a.I have nothing to do but wait .
b.I have no choice but to wait .（若but前沒(méi)有do，則不定式加to）
c.He needs nothing but to succeed .
d.He will do anything but give in .　他決不會(huì)屈服。
e.That was so serious a matter that I had no choice but_________the police.
A. called in
B. calling in
C. call in
D. to call in
正確答案：D。
f.Having missed that last bus, Bob had no alternative_________a taxi home though he did not like the idea.
A. but to take
B. take to but
C. to but take
D. to take but
正確答案：A。
另外，在解釋do的精確含義的名詞從句和定語(yǔ)從句作主語(yǔ)的句子中， be動(dòng)詞后直接加動(dòng)詞原形。
g.All that I could do then was wait .
h.What I could do then was wait .
i.All you do now is complete this form.
j.No mountains too high for you to climb. All you have to do is have some climbing faith. No rivers too wide for you to make it across. All you have to do is believe it when you pray.
k.Husband: I have a very demanding job. I'm tired when I get home.
Wife: I also have a demanding job, but I'm expected to come home from the office and cook, care for the children and clean the house. All you do is sit and watch television and complain about how tired you are.
（5） Why (not) + do?句型中
1） Why do sth.?含有責(zé)怪之意，通常表明做某事是無(wú)意義或愚蠢的。
a.— I really hate to write the essay Professor Smith assigned us.
— Why bother then?
b. Why pay to see that movie, since you can see it on TV for nothing.
2） Why not do sth.?表示建議
Why not take a holiday?
（6）兩個(gè)動(dòng)詞不定式由and，or，but等連接時(shí)，為了避免重復(fù)而省去第二個(gè)不定式中的to。
a.I'd like to lie down and go to sleep.
b.Do you want to have lunch now or wait till later?
c.I haven't decided whether to go home or stay at school during the coming summer vacation.
在這種情況下，若兩個(gè)不定式動(dòng)詞有對(duì)比之意，則均須加to。
d.It is the greatest happiness on earth to love and to be loved .
e. To play fair is as important as to play well .
f.I came not to praise , but to scold you.
g.He likes to be respected , not to respect others.