11. Lower taxes would spur investment and help economic growth.
A. attract
B. encourage
C. require
D. spend
12. He was kept in appalling conditions in prison.
A. critical
B. temble
C. necessary
D. normal
13. I can't put up with my neighbor's noise any longer, it's driving me mad.
A. measure
B. generate
C. tolerate
D. reduce
14. The project required ten years of diligent research.
A. hardworking
B. scientific
C. basic
D. social
15. He was rather vague about the reasons why he never finished school.
A. unclear
B. bright
C. bad
D. general
答案： 11. B[解析]本句意思：低税收将刺激投资，帮助经济增长。spur：鞭策,激励;attract：吸引，例如：His film has attraced a large audiences.他的电影吸引了很多的观众。encourage和spur意思相同，是鼓舞、鼓励的意思，例如：New measures have been taken to encourage consumption in China.申国采取了新的举措来刺激消费。require：要求，如：This is the minimum quantity we require.这是我们所要求的最小数量。spend：花费，如：She spent the whole month to prepare for the examination.她用一个月的时间准备考试。
12. B [解析]本句意思：他被关押在条件恶劣的监狱里。appalling：可怕的，令人震惊的;critical：危险的，爱挑剔的，例如：He is very critical about food.他对食物特别挑剔。terrible：可怕的;necessary：必要的，必须的，例如：We still lack the necessary information.我们仍缺少必要的信息。normal：正常的，例如：lt is normal to feel lonelv sometimes.偶尔会觉得寂寞是很正常的。
13. C[解析]本句意思：我不能忍受邻居的噪音，那快让我疯了。put up with：忍受，和tolerate意思相同，例如：The school cannot tolerate cheating on exams.学校无法容忍考试作弊现象。measure：测量，估计，例如：We cannot measure a man by his failures.我们不能以失败来衡量一个人。reduce：减少，缩小，例如：They have to reduce expenses this year.他们今年必须削减开支。
14. A[解析]本句意思：这个项目需要10年的刻苦钻研。hardworking：刻苦的，努力的，例如：His success depend on his hardworking and patience.他的成功全靠他的辛勤与耐心。scientific：科学的，例如：scientific development科学发展;basic：基本的，基础的，例如：My boss can speak some basic English.我的老板能说一些基础英语。social：社会的，例如：good social order良好的社会秩序。
15. A[解析]本句意思：他对自己没有完成学业的原因相当糊涂。vague：含糊的，不明确的，它和unclear意思相同，例如：It was still unclear what was the cause of the aircrash.那起空难的原因还不清楚。bright：聪明的，光明的，例如：We enjoyed the bright sunshine.我们享受明媚的阳光。general：-般的，大体的，例如：the general trend of development发展的大趋势。bad：糟糕的，坏的，例如：You have to correct your bad habits radically.你必须彻底地改正自己的坏习惯。