听力是英语四级的关键部分之一，提升听力技巧和常用表达有助于更好地理解材料，从而获得理想成绩。新东方在线整理了2025年6月英语四级听力原文：Sleep，希望能为大家带来帮助。
2025年6月英语四级听力原文：Sleep
Why is it so difficult to fall asleep when you are overtired? There is no one answer that applies to every individual. It is possible to feel “tired” physically and still be unable to fall asleep, because while your body may be exhausted, you do not feel sleepy. It is not so easy to simply “turn off”.
Lack of sleep complicates matters even more. Experts say adults need at least seven to eight hours of sleep a night to function properly. When you get less sleep than that on consecutive three nights, you begin to accrue four “sleep debt”. As sleep debt increases your body experiences a stress response. Now a vicious cycle has been created: You experience the feeling of being more and more tired, but your body is increasingly stimulated. “Power sleeping” for more hours on weekends is only a temporary solution. There is no substitute for getting a good night’s sleep on a regular basis.
Useful Words and Expressions:
1. overtire 使过度疲劳
2. apply to 将……应用于
3. consecutive 连续的，连贯的
4. accrue 自然增加，产生
5. vicious恶的
vicious cycle 恶性循环
6. stimulate 刺激，激励
7. substitute for 代替……，替换……
以上是新东方在线英语四级频道小编为大家带来的“2025年6月英语四级听力原文：Sleep”，希望考生们都能取得出色的成绩！