I. 单项选择(15分)
1. Don’t be _____ ! The little boy is asleep.
A. noise B. noisy C. voice D. sound
【解析】选B。四个选项分别意为“噪音”、“吵闹的”、“嗓音”、“声音”，结合关键信息“The little boy is asleep. ”可知“别吵闹了”，故选B。
2. The river is so _____ . I can see the bottom of it.
A. clear B. bright C. clearly D. brightly
【解析】选A。根据题意“河水是如此清澈，我能看到河的底部。”可知应用形容词，故应排除C、D两项。clear意为“清澈的”；bright意为“明亮的”。故选A。
3. It’s an important meeting. Please try _____ late for it.
A. not being B. not to be
C. to be not D. being not
【解析】选B。考查try (not) to do sth. 句式。结合关键信息“It’s an important meeting. ”可知“请尽量不要迟到”，故排除A、C、D三项，选B。
