问题
选择题
________ requires us to do two things quickly. First, ________ the main topic; and second, to write down the important details.
A．To take good notes; recognizing
B．Taken good notes; recognizing
C．Taking good notes; recognizing
D．Taking good notes; to recognize
答案
答案：D
D 考察非谓语动词。句义：做好笔记要求我们做到两点，首先要判断出中心主题，其次能够记住重要细节。第一空中缺少主语成分，不定式和动名词都可以做主语，但是过去分词不能做主语。And连接的是平行结构，and后面是不定式形式，所以前面同样也需要使用不定式的形式。故D正确。