4．动词不定式省略，只保留to的场合5.介词的省略

　　(1)一些与动词、名词或形容词一起搭配的介词常省略，而保留其后的动名词，常见句型有：

　　have difficulty/trouble(in) doing sth.

　　be busy (in) doing sth.

　　stop/prevent sb. (from) doing sth.

　　The heavy rain prevented him (from) arriving there on time.大雨使得他没能准时到达那里。

　　(2)表示时间的介词at，on和in 用在next，last，this，these，yesterday，tomorrow，one，any，every，each，some等词之前，一般可省略。

　　Ⅰ.单项填空

　　1 She hurriedly left the room ______.

　　A．as if angry B．as if she angry

　　C．as if were she angry D．as if be angry

　　2 Meeting my uncle after all these years was an unforgettable moment，______ I will always treasure.

　　A．that B．one

　　C．it D．what

　　3 The house rent is expensive；I've got about half the space I had at home and I'm paying ______ here.

　　A．as three times much B．as much three times

　　C．much as three times D．three times as much

　　4 What would have happened ______，as far as the river bank?

　　A．Bob had walked farther B．if Bob should walk farther

　　C．had Bob walked farther D．if Bob walked farther

　　5 Is this the reason ______ at the meeting for his carelessness in his work?

　　A．he explained B．what he explained

　　C．how he explained D．why he explained

　　6 ______ be sent to work there?

　　A．Who do you suggest B．Who do you suggest that should

　　C．Do you suggest who should D．Do you suggest whom should

　　7 When ______，the museum will be open to the public next year.

　　A．completed B．completing

　　C．being completed D．to be completed

　　8 You should have thanked her before you left.I mean！______，but when I was leaving I couldn't find her anywhere.

　　A．to do B．to

　　C．doing D．doing it

　　9 -Are you going out for a walk?

　　-______.

　　A．I'd like B．I'd like to be

　　C．I'd like to D．both B and C

　　10 We spent the whole day ______.

　　A．at Smith's B．at the Smiths'

　　C．at the Smith's D．both A and B

　　11 What about ______ a walk for a while?

　　A．our taking B．us two taking

　　C．for us to take D．both A and B

　　12 Which of the following is wrong?

　　A．He runs faster than I. B．He runs faster than me.

　　C．He runs faster than I do. D．He runs faster than me do.

　　13 I know ______ he studies hard and ______ he always gets the first place.

A．that；/ B．/；that