（2011·重庆师大附中月考）24.While he was investigating ways to improve the telescope, Newton made ________ discovery which completely changed ________ man’s understanding of color.
A. a; 不填 B. a; the C. 不填; the D. the; a
A考查冠词的用法。第一空表示“一个发现”；第二空understanding of color已有限定词man’s，故不用冠词。
（2011·唐山市摸底）8．In ．I’11 be among_____ unemployed，I’m afraid． week or so
A．小填；a B．a；不填 C．a；the D．me：不填
