第二部分：词汇知识运用(共两节，满分30分)
第一节：多项选择（共10小题；每小题1分，满分10分)
21．When he picked up a large sum of money by accident, he battled with his _____ whether he should keep it or return it to the owner.
A. consciousness B. conscience C. commitment D. convenience
22．It’s better for you to take some time to prepare your annual (年度的) performance _____ carefully, which will decide whether you will get a promotion next year.
A. revision B. remark C. review D. request
23．The 2013 Nobel Prize in Physiology or Medicine was _____ jointly (共同地) to James E. Rothman, Randy W. Schekman and Thomas C. Südhof for their discoveries of a major transport system in our cells.
A. awarded B. rewarded C. distributed D. contributed
24．Usually a meteorological observatory (气象台) _____ air quality in urban areas from one to five: excellent,
