[答案] B
2．[解析] 细节理解题。联系Kavey的建议中的最后一句话“Drugs are safe when used properly, and better than the consequences of not sleeping.”可知，他肯定了药物治疗失眠的作用。
[答案] A
3．[解析] 细节理解题。根据Lisa Derosimo说的“And remember, people who eat a healthy diet of whole grains, fruits and vegetables, and low-fat protein feel better and sleep better.”可知，她认为好的饮食是良好睡眠的保证。
[答案] A
4．[解析] 推理判断题。由文章内容可知，Kavey和Derosimo都建议晚上休息时要远离光线，故选A。
[答案] A
