Ⅰ. 单项选择(15分)
1. He wants to be ________ astronaut in the future.
A. a B. an C. the D. /
【解析】选B。考查冠词的用法。根据句意“将来他想当一名宇航员。”可知,此处应用表示泛指的a或an。冠词an用在以元音音素开头的单词前,故答案为B。
2. —How do you feel before the math exam, Mike?
—I often get _______ .
A. tired B. happy
C. stressed out D. more interested
【解析】选C。考查形容词的辨析。考试前心理压力过大,stress out 意为“焦虑不安,疲惫不堪”,故答案为C。