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mise,prefer,如果不定式(宾语)后面有宾语补足语,则用it作形式宾语,真正的宾语(不定式)后置,放在宾语补足语后面,例如:

Marx found it important to study the situation in Russia. 马克思发现研究俄国的情况是很重要的。

动词不定式也可充当介词宾语,如:

I have no choice but to stay here. 我只能留在这里,别无选择。 He did nothing last Sunday but repair his bike. 他上周日除了修他的自行车什么也没干。

动词不定式前有时可与疑问词

连用,如:

He gave us some advice on how to learn English. 他给了我们一些学英语的建议。

4.作宾语补足语:

在复合宾语中,动词不定式可充当宾语补足语,如下动词常跟这种复合

want,wish,ask,tell,order,beg,permit,help,advise,persuade,allow,prepare,cause,force,call on,wait for,invite. 此外,介词有时也与这种复合宾语连用,如:

With a lot of work to do,he didn't go to the cinema.他有很多工作要做,

所以没去电影院。

make,let,see,watch,hear,feel,have等与不带有to的不定式连用,但改为被动语态时,不定式要加to,如: I saw him cross the road. 我看见他横过公路。

He was seen to cross the road. 他被我看见横过公路。

5.作定语:

动词不定式作定语,放在所修饰的名词或代词后。与所修饰名词有如下关系:

①动宾关系:

I have a meeting to attend. 我有

一个会议要出席。

注意:不定式为不及物动词时,所修饰的名词如果是地点、工具等,应有必要的介词,如:

He found a good house to live in. 他找到了一个居住的好房子。 The child has nothing to worry about. 这个孩子无忧无虑。 What did you open it with? 你用什么打开它?

如果不定式修饰time,place,way,可以省略介词:

He has no place to live. 他无处安身。

This is the best way to work out