英语：一轮复习课后练习及单元检测 unit8 sports（旧人教版必修1）

Unit 8 Sports

◆课后作业

Ⅰ 单项填空: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.At _________ time does the salesgirl get up late in the morning. She is too busy to take a good rest.

A. no                           B. any                          C. each                 D. one

2._________ gravity holds things together, some unknown _________ is working across the universe to pull everything apart.

A. While; force             B. When; power            C. As; energy         D. Since; strength

3.Liu Xiang is_________ first Chinese who has won_________ one-hundred-metre hurdle gold medal in the Olympic Games.

A. the; a                    B. the; the                     C. the; an                     D. a; the

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