1. The number of foreign students attending Chinese universities________ steadily since 1997.
A. is rising B. are rising C. has been rising D. have been rising
【答案】C
【解析】
【详解】考查时态和主谓一致。句意：自1997年以来，在中国大学就读的外国学生人数一直在稳步上升。根据“since 1997 ”可知，本句为现在完成时或者现在完成进行时，再结合句意可知，本句为现在完成进行时。the number of +名词复数，谓语动词为单数。故选C项。
2. (2013·福建) _____________ basic first-aid techniques will help you respond quickly to emergencies.
A. Known B. Having known
C. Knowing D. Being known
【答案】C
【解析】
【详解】考查动名词。句意：了解基本的急救知识可以帮助您快速应对紧急情况。分析句子成分，谓语是will help，所以前面的是主语，用动名词做主语，故选C项。
