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wave，current，tide

wave”的意思是“海浪，波浪”，说的就是“海 水表面高低起伏的部分”。注意，“wave”表示“浪”时是可数名词。Examples

We are all in our surfing gear, ready to hit the waves.

A massive wave struck the boat and the entire crew was cast into the sea.

wave”还有很多衍生含义，比如“热、光、声等能量的波动”

Example

Sometimes humans learn from animals. Take sonar for example; it imitates how bats use sound waves and echoes to navigate.

Heatwave with record-high temperatures sweeps across Europe

此外，单词“wave”还可以指“突然涌上心头的负面情绪，或者突如其来的负面现象”。来听两个例句。

Examples

When the news arrived, a wave of despair swept through the crowd.

The recent economic crash has led to an unprecedented wave of crime.

下面，来看另一个和“水流”有关的词语：current。我们都知道，“current”在做形 容词的时候意思是“当前的”。而它在做名词的时候则表示“朝某一方向移动的水流、气流或电流”。来听两个例句。

The incredible thing about salmon is they first go out to the ocean to mature and then swim upstream against the currents to the rivers.

A household electric current can be lethal – so make sure children can’t reach it.

我们通常用 in 和 out 这两个介词来分别形容“涨潮”和“落潮”：The tide is in. 潮涨了。The tide is out. 潮退了 。

另外，单词“tide”还有一层引申含义，表示“事情的潮流、趋势”。

比如，表达“go with the tide”的意思是“顺波逐流，随大流”；而“go against the tide”的意思则是“逆流而上”。

Examples

As a fashion icon, she always goes against the tide and wears controversial costumes.

Sometimes you’ll find it much easier to go with the tide instead of following your heart.