第二部分 语言知识及应用（共两节，满分35分）
第一节 完形填空（共10小题；每小题2分，满分20分）
阅读下面短文，掌握其大意，然后从21—30各题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑。
Many people find that regular physical activity gives them an unexpected benefit. They sleep better and wake up feeling more 21 , in part due to increased amounts of deep sleep. Deep sleep may play a role in the body restoring（修复） itself 22 , as opposed to REM （rapid eye movement） or dreaming sleep. Researchers have found that physical exercise, especially 23 in the afternoon or early morning, produces more 24 early in the night.
