circadian

circadian的音标是[ˌsɜːkjəˈdeɪn]，基本翻译是“生物钟的”。速记技巧可以是：时钟（clock）的名词形式加上-ian（表示“……的人”）构成。

Circadian这个词源于希腊语，意为“一天的，一昼夜的”。它的变化形式包括复数形式circadians，过去式和过去分词形式circadianized，现在分词形式circadianizing。

相关单词：

1. rhythm：意为“节奏，韵律”，与circadian有着密切的联系。Circadian rhythms是指昼夜节律，这是生物体内的一种自然现象。

2. diurnal：意为“白天的，日间的”，与circadian一起描述了生物体在一天中的活动模式。

3. nocturnal：意为“夜间的，夜晚的”，与circadian相反，描述了生物体在夜晚的活动模式。

4. circadian rhythm：昼夜节律，是生物体内的一种自然现象，与circadian有着密切的联系。

5. biological clock：生物钟，这个词汇通常与circadian rhythm相关联，用来描述生物体内的时间感应器。

6. phase shift：相位偏移，这个词汇与昼夜节律有关，当昼夜节律发生相位偏移时，意味着生物体的活动模式发生了变化。

7. entrainment：同步化，这个词汇描述了生物钟与其他周期性刺激之间的相互作用，例如光照、温度等环境因素。

8. desynchronization：不同步化，这个词汇描述了生物钟与其他周期性刺激之间的不协调状态。

9. ultradian：意为“超昼夜节律”，这个词汇描述的是时间周期小于一天的节律。

10. infradian：意为“超昼夜节律的”，这个词汇描述的是时间周期大于一天的节律。

常用短语：

1. circadian rhythm

2. keep to one"s own circadian rhythm

3. out of sync with one"s circadian rhythm

4. disrupt circadian rhythm

5. sleep cycle

6. wake up at the same time every day

7. biological clock

例句：

1. His work schedule keeps him out of sync with his circadian rhythm.

2. She wakes up at the same time every day, regardless of the weather or her schedule.

3. The long flight disrupted my circadian rhythm, making me feel tired and groggy.

4. The constant noise in the city can be hard on people"s circadian rhythms.

5. Sleeping in a different environment can throw off your circadian rhythm.

6. We need to adjust our sleep cycle to accommodate for the time change.

7. The body"s biological clock regulates our sleep-wake cycle.

英文小作文：

Circadian Rhythm and Our Health

Our circadian rhythm is a natural biological clock that regulates our sleep-wake cycle and other bodily functions. It is influenced by external factors such as light and dark, but it also plays a role in our internal body clock, which helps us maintain a regular sleep pattern and alertness throughout the day. However, if our circadian rhythm is disrupted, it can have a negative impact on our health and well-being. For example, shift work and jet lag can cause sleep deprivation and fatigue, which can lead to increased risk of accidents and decreased productivity. Therefore, it is important to maintain a regular sleep-wake cycle and avoid exposure to excessive light and noise that can disrupt our circadian rhythm. By doing so, we can improve our overall health and well-being by maintaining a healthy circadian rhythm.