从2017年湖北经济学院普通专升本考试情况来看，英语的单选题题量是30题。单选题一般考察语法和词义辨析等知识点，同学们在大量记忆单词的同时也要花一些时间去复习语法知识，要掌握基本的语法来应对专升本考试。下面是湖北专升本网整理的湖北经济学院英语单选题的模拟训练以及答案解析，同学们先做题再对照答案检查哦！
【单选题】
1. It was nearly an hour ____the sleeping pill ______effect.
A. when; took B. before; took C. since; had D. before had
2. Our TV sets sell well, but ten years ago no one could have imagined such a big share in the market that they ____.
A. were having B. had had C. were to have D. had
3. Bird flu , a contagious disease of animals , is believed by viruses that normally infect only birds and less commonly pigs , and rarely humans .
A．caused B．being caused C．to be caused D．to have caused
4. He has got himself into a dangerous situation ______ he is likely to lose control over the plan.
A. where B. which C. where D. why
5. ______, the concert began.
A. The listeners having taken their seats B. Having taken their seats C. Having taken their places D. Taking their seats
【答案详解】
1. B. It is+一段时间+before…表示“过了….才…”take effect 表示（药等）见效；（法规等）生效
2. C十年前没有想到将来会占有这么大的市场份额 were to have
3. C. 是由病毒造成的…
4. C. Where he is likely to lose control…关系副词where 引导定语从句修饰situation境地。
5. A. 独立主格做状语。主语concert 不可能执行take the seat 这一动作，必须加the listeners 做逻辑主语
