Ⅰ. 1.【解析】4-or 5-year-old kids taking naps are less likely to be hyperactive or experience depression/Naps can reduce hyperactivity and depression in kids between 4 and 5 years old. 从第一段内容可知。
2. 【解析】（still）continued to nap/took naps/took a nap. 和上句的take daytime naps相对应。
3.【解析】They should include a quiet “rest” time in the daily schedule of their children. /They should give their children a rest time every day. 从第三段的最后一句Dr．Crosby suggested that parents include a quiet “rest” time in the daily schedule of their children to allow kids to nap if needed．可知。
