问题
选择题
Obama was elected ____ first black president of the United States four years ago and has been elected _____ president again for the next four years.
A．the; the
B．the; X
C．X; the
D．a; a
答案
答案：B
题目分析：
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
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。