甘肃省兰州一中2013届高三第三次模拟考试（英语）
第一部分 英语知识运用（共两节，满分45分）
第一节 单项填空（共15小题；每小题1分，满分15分）
从A 、B 、Ｃ、D 四个选项中，选出可以填入空白处的最佳选项。
1. A recent study has come up with _____ unexpected conclusion that ____ Africa elephants should be divided into two different species.
A. a, the B. an, the C. an, an D. the, the
2. The purpose of the campaign is to raise the public’s_______ of the dangers of passive smoking.
A. existence B. connection C. awareness D. consciousness
3. The new building _____ at the end of this year _____ to that university.
A. be completed; belongs B being completed; is belonging
C. to be completed; belongs D. completed; is belonged
4. As a rough estimate, Nigeria is _______ Great Britain.
A. three times the sizes as B. the size three times of
C. three times as the size of D. three times the size of
5. Is this the reason ______ at the meeting for his carelessness in his work?
A. What he explained B. how he explained
C. he explained D. why he explained
