说明：本试卷共八道大题8页，满分120分，90分钟完成。考生将I卷的选项填在后面的答题卡中。
第I卷 (选择题 共50分)
I.单选题，共1５小题, 计1５分)
1. His father is engineer. He designed such useful machine
A．a an B. an a C. an an D. a a
2.The building is the second in our town。
A high B highest C higher D the most highest
3.Every day we spend half an hour morning exercise。
A do B to do C for doing D doing
【答案】D
【解析】
试题分析：句意：我们每天花半小时锻炼。Spend time doing sth.花时间做某事，后接动词的ing形式，故选D。
考点：考查非谓语动词。
4. I saw them ___football on the playground when I passed by.
A. playing B. were playing C. played D. to play
