问题
选择题
_____ basic first-aid techniques will help you respond quickly to emergencies.
A．Known
B．Having known
C．Knowing
D．Being known
答案
答案：C
考查动名词做主语。分析句子成分可知，谓语是will help，所以前面的是主语，用动名词做主语。句意：了解基本的急救知识可以让你尽快的回应紧急状况。所以选C。
【考点定位】考查动名词做主语。