Question

Obama was elected ____ first black president of the United States four years ago and has been elected _____ president again for the next four years.

1. A.
   the; the　　
2. B.
   the; X
3. C.
   X; the
4. D.
   a; a

Answer 1

B
试题分析：
序数词前加the，the first black president第一位黑人总统。而第二空，职位前面省略the.故选B
考点：定冠词
点评：冠词的考查是每年高考的必考点，近几年来呈现上升的趋势，冠词的用法较多，学生可以考阅复习资料进行记忆与掌握。