英语等级考试重点

职称英语等级考试各重点语法考点解析3

作表语:

Her job is to clean the hall.

He appears to have caught a cold.

作宾语:

常与不定式做宾语连用的动词有:want, hope, wish, offer, fail, plan, learn, pretend, refuse, manage, help, agree, promise, prefer, 如果不定式后面有宾语补足语,则用it作形式宾语,真正的宾语后置,放在宾语补足语后面,例如:

Marx found it important to study the situation in Russia. 动词不定式也可充当介词宾语,如: I have no choice but to stay here.

He did nothing last Sunday but repair his bike.

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.

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宾语: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 didnt go to the cinema.

有些动词如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. /He was seen to cross the road.