| 听下面一段对话，回答第1-4题 |
| 1. What does everyone have? |
| A. Laziness. B. Good habits. C. Daily energy cycle. |
| 2. Which description is TRUE? |
| A. The peak for all people comes during the time before afternoon. B. The peak for most people comes in the afternoon or evening. C. Your cycle of body temperature is at its peak when you feel most energetic. |
| 3. What will end when husbands and wives realize what these energy cycles mean? |
| A. Many bad habits. B. Much laziness. C. Much family quarrelling. |
| 4. How can man work better at low point? |
| A. Rise at the usual hour. B. Rise after the usual hour. C. Rise before the usual hour. |