1. Looking round the town, he felt as though he ________ away for ages.
A. has been
B. was
C. is
D. had been
2. While crossing the mountain areas, all the men had guns for protection lest they ________ by the local bandits.
A. be attacked
B. were attacked
C. must be attacked
D. would be attacked
3. It's highly desirable that a new manager ________ for this company.
A. should appoint
B. be appointed
C. should be appointing
D. appoint
4. It is essential that all the reports to be published _______ twice.
A. be checked
B. were checked
C. would be checked
D. will be checked
5. It's necessary _______ the dictionary immediately.
A. that he will return
B. that he returned
C. that he return
D. that he has returned
答案解析
1.【解析】考查虚拟语气。本句是 as though 引导的状语从句。“仿佛，好像”根据句意可知，环顾小镇四周，他觉得自己仿佛已经离开多年。从句表示与过去事实相反，从句谓语动词用“had +过去分词”。故答案选 D。
2.【解析】考查状语从句的虚拟。lest 引导的目的状语从句为虚拟语气，所以谓语用 should+动词原形，should 可以省略。根据句意可知，在穿越山区时，所有男人都带枪保护自己，以免他们被当地的土匪攻击。故答案选 A。
3.【解析】考查虚拟语气。虚拟语气用于主语从句的常见结构是“It is + 形容词/名词/过去分词 + that 引导的主语从句”，从句谓语动词的形式为 (should) + 动词原形。根据句意可知，本公司急需任命一位新经理。故答案选 B。
4.【解析】考查虚拟语气。虚拟语气用于主语从句的常见结构是“It is + 形容词/名词/过去分词 + that 引导的主语从句”，从句谓语动词的形式为 (should) + 动词原形。根据句意可知，要发表的报告检查两遍是很有必要的。故答案选 A。
5.【解析】考查虚拟语气。虚拟语气用于主语从句的常见结构是“It is + 形容词/名词/过去分词 + that 引导的主语从句”，从句谓语动词的形式为 (should) + 动词原形。根据句意可知，他立刻把字典还回来是必要的。故答案选 C。
