小题1:D
小题1:B
小题1:C
小题1:D
小题1:C
小题1:根据“Health” means eating well, getting enough exercise, and having a healthy weight. 描述，可知不包括选项D，穿舒适的衣服。
小题1:联系下文可知此处含义是，吃各种食物，故选B，各种各样的。
小题1:根据The more time you spend on these sitting-down activities, the less time you spend playing sports, like basketball, and doing other activities like riding and swimming. Try to spend no more than 2 hours a day on screen time. 描述，可知C，无论是坐着的活动还是体育运动，我们都应该花费相同的时间。
小题1:根据What’s screen time? It’s the amount of time you spend watching TV, movies and playing computer games. 描述，可知选D。
小题1:根据Let’s read the following rules. They can help you stay healthy.及下文描述，可知本文主要是告诉了我们如何保持健康。故选C。