Warm Oceans and Small Sea Plants

暖洋與小型海洋植物

Jun 5, 2026, 18:00
GlobalScience

Introduction

Scientists studied small plants in the ocean. They found that warm water makes these plants sick because they lack food.

科學家研究了海洋中的小型植物。他們發現溫暖的水會導致這些植物生病，因為它們缺乏食物。

Main Body

Warm water stays at the top of the ocean. This warm layer stops cold water from moving up. Cold water has the food that plants need. Now, plants in the South Pacific have very little food.

溫暖的水會留在海洋表面。這個暖層會阻礙冷水向上移動。冷水中含有植物所需的食物。現在，南太平洋的植物食物非常匱乏。

Some plants in the North Atlantic are okay. They can find other ways to get food. But other plants need nitrogen. Without nitrogen, they cannot grow.

北大西洋的一些植物則沒有問題。它們可以找到其他獲取食物的方法。但其他植物需要氮。沒有氮，它們就無法生長。

In the Southern Hemisphere, the plants are stronger. Some small bacteria help them get food. This means some parts of the ocean can fight the heat better than others.

在南半球，植物較為強壯。一些小型細菌會幫助它們獲取食物。這意味著海洋的某些部分比其他地方更能抵抗熱力。

Conclusion

Now, scientists can use satellites to see how ocean plants react to heat in real time.

現在，科學家可以使用衛星來即時觀察海洋植物對熱力的反應。

Vocabulary Learning

🟢 The Power of "CAN" and "CANNOT"

In this text, we see how to talk about ability (what is possible) using a very simple word: Can.

1. Positive side (Possible)

  • They can find other ways... →\rightarrow (It is possible for them).
  • Plants can fight the heat... →\rightarrow (They have the power to do it).

2. Negative side (Impossible)

  • They cannot grow... →\rightarrow (It is impossible).

🧩 Word Pair: Opposites

To reach A2, you must recognize opposite pairs. The article uses these:

  • Warm ↔\leftrightarrow Cold
  • Stronger ↔\leftrightarrow Sick
  • Top ↔\leftrightarrow Up (Direction)

💡 Quick Tip: The "Lack" Pattern

Instead of saying "they don't have," the text says:

"...they lack food."

Lack = To not have enough of something. Example: I lack money →\rightarrow I don't have money.

Vocabulary Learning

lack (v.)
to not have something that you need
Example:The plants lack food because the water is too warm.
layer (n.)
a thickness of something that covers a surface
Example:The warm layer of water stays at the top of the ocean.
nitrogen (n.)
a gas or chemical that plants need to grow
Example:Without nitrogen, the plants cannot grow.
hemisphere (n.)
half of the earth
Example:The plants in the Southern Hemisphere are stronger.
bacteria (n.)
very small living things that can only be seen with a microscope
Example:Some small bacteria help the plants get food.
satellites (n.)
machines in space that send information to earth
Example:Scientists use satellites to see the ocean from space.
react (v.)
to behave in a particular way because of something
Example:Scientists want to see how plants react to the heat.
Practice A2 words in a crossword→