Tide is the rhythmic, gravity-driven rise and fall of the ocean.
Word in 30 Seconds
- Periodic rise and fall of sea levels.
- Driven by gravitational forces of moon and sun.
- Occurs usually twice daily in many coastal areas.
1) 概览：潮汐（Tide）是一种由天体引力（主要是月球和太阳）引起的地球海洋表面水位周期性升降的现象。海水上升时称为“涨潮”，下降时称为“落潮”。
2) 用法模式：潮汐常作为名词使用，常用于描述地理、气象或航海场景。它既可以指代具体的物理现象，也可以引申为社会趋势或力量的更迭。
3) 常见语境：在航海中，潮汐决定了船只进出港口的时间；在生态学中，潮间带生物的生存依赖于潮汐的规律；在文学或社会讨论中，“时代的潮汐”常被用来形容不可阻挡的历史进程或社会风向。
4) 近义词比较：‘潮流’多指社会风气或趋势，侧重于人的思想或行为；‘潮汐’则严格指代自然界的水位变化。虽然两者在比喻义上偶尔重叠，但指代自然现象时不可互换。
Examples
今天的潮汐时间表显示下午三点涨潮。
everydayThe tide table shows high tide at 3 PM today.
该港口的运营受潮汐限制。
formalThe operation of the port is limited by the tides.
看，潮汐正在退去。
informalLook, the tide is going out.
潮汐能是一种可再生的清洁能源。
academicTidal energy is a form of renewable clean energy.
Common Collocations
Common Phrases
顺应潮汐
Follow the tide
潮汐发电
Tidal power generation
大潮
Spring tide
Often Confused With
Current refers to the horizontal flow of water, while tide refers to the vertical change in water level.
Grammar Patterns
How to Use It
Usage Notes
Use '潮汐' in scientific or formal contexts to describe the phenomenon. In casual conversation, '涨潮' (high tide) or '退潮' (low tide) is more common. It is a neutral, descriptive noun.
Common Mistakes
Do not confuse '潮汐' with '海啸' (tsunami). A tide is a normal, predictable cycle, while a tsunami is a sudden, destructive wave caused by earthquakes.
Tips
Use with verbs like rise and fall
When describing tides, use verbs like 'rise' and 'fall' or 'come in' and 'go out'. This helps create a natural, descriptive flow.
Do not confuse with current
A tide is a vertical change in water level, while a current is a horizontal movement of water. They are distinct physical phenomena.
Cultural significance in coastal regions
In many coastal cultures, tides are seen as the 'breathing' of the earth. They have shaped local folklore and daily routines for centuries.
Word Origin
The term combines '潮' (morning tide) and '汐' (evening tide). Historically, ancient Chinese observed that the tide rising in the morning is called 'Chao' and in the evening is 'Xi'.
Cultural Context
In Chinese culture, the Qiantang River tide is a famous natural spectacle. It represents both the power of nature and the poetic cycle of life.
Memory Tip
Think of the moon pulling the ocean like a magnet. The 'tide' is the ocean's rhythmic dance with the moon.
Frequently Asked Questions
4 questions这是因为地球表面受到月球引力和地球自转惯性的双重影响。当月球引力作用于地球时，向月面和背月面会同时形成高潮，因此大部分地区一天内会有两次涨落。
潮汐直接影响航海安全、渔业捕捞以及沿海地区的工程建设。了解潮汐规律对于安全出海和防范风暴潮至关重要。
它常被用于比喻不可逆转的社会趋势或个人运势的起伏。例如“历史的潮汐”意味着历史发展的必然趋势。
涨潮是水位上升的过程，通常伴随着海水向陆地推进；落潮则是水位下降，海水退回海洋的过程。
Test Yourself
受到月球引力的影响，海洋每天都会出现规律的___。
潮汐指代海水周期性的升降，符合题意。
以下哪项是正确描述海水升降的术语？
潮汐是专门描述海水升降的术语。
受 / 潮汐 / 影响 / 渔民 / 出海 / 时间
该句式逻辑通顺，符合中文语法。
Score: /3
Summary
Tide is the rhythmic, gravity-driven rise and fall of the ocean.
- Periodic rise and fall of sea levels.
- Driven by gravitational forces of moon and sun.
- Occurs usually twice daily in many coastal areas.
Use with verbs like rise and fall
When describing tides, use verbs like 'rise' and 'fall' or 'come in' and 'go out'. This helps create a natural, descriptive flow.
Do not confuse with current
A tide is a vertical change in water level, while a current is a horizontal movement of water. They are distinct physical phenomena.
Cultural significance in coastal regions
In many coastal cultures, tides are seen as the 'breathing' of the earth. They have shaped local folklore and daily routines for centuries.
Examples
4 of 4今天的潮汐时间表显示下午三点涨潮。
The tide table shows high tide at 3 PM today.
该港口的运营受潮汐限制。
The operation of the port is limited by the tides.
看，潮汐正在退去。
Look, the tide is going out.
潮汐能是一种可再生的清洁能源。
Tidal energy is a form of renewable clean energy.
