六、不定式

　　1) It was a great achievement _______________(10个月建成一栋24层的楼).

　　2) It is necessary _______________(我们在考试前好好地睡一晚上觉).

　　3) It is generous _______________(你把这么多钱捐给灾区人民).

　　4) The teacher decided _______________(不惩罚那些上课迟到的学生).

　　5) Mr. Green was wondering _______________ (是否去看望在法国的儿子).

　　答案

　　1) to complete a 24-story building in 10 months

　　(考点：不定式作主语时常用it作形式主语放在句首代替不定式，而将不定式移到谓语后面)

　　2) for us to have a good night’s sleep before the test

　　(考点：有时用“介词for + 代词/名词”来表示不定式的逻辑主语，这时整句的谓语描述的对象是事情，这种情况下谓语中常用的形容词有：necessary, important, possible, impossible, all right, essential等)

　　3) of you to donate so much money to the people in the disaster area

　　(考点：有时用“介词of + 代词/名词”来表示不定式的逻辑主语，这时整句的谓语描述的对象是人，这种情况下谓语中常用的形容词有：absurd, bold, brave, careful, careless, cowardly, cruel, foolish, generous, good, honest, kind, nice, polite, rude, selfish, silly, stupid, thoughtful, thoughtless, wicked, wise, wrong等)

　　4) not to punish those students who had been late for class

　　(考点：1． 用不定式结构作decide的宾语；2．不定式的否定形式是在to前加not)

　　(能带不定式作宾语的动词常见的有：afford, agree, ask, attempt, beg, begin, bother, care, choose, claim, consent, decide, demand, desire, dislike, endeavor, expect, fail, fear, forget, happen, hate, help, hesitate, hope, intend, learn, like, love, manage, mean, neglect, offer, plan, pledge, prefer, prepare, pretend, promise, refuse, remember, resolve, start, threaten, undertake, venture, volunteer, vow, want, wish)

　　5) whether to visit their son in France

　　(考点：“疑问词+不定式”作动词wonder的宾语。能以这种结构作宾语的动词通常有ask, consider, decide, discover, explain, forget, guess, know, learn, observe, remember, see, tell, understand, wonder等)