B
(2025·合肥)The ocean covers more than 70% of the earth. It helps us in many ways.
Food and Job
The ocean provides delicious food for us,such as salt and seafood. Because of the need of this food, people build a lot of factories to make food from the ocean, and then many people have jobs.
Fun and Relaxation(放松)
The ocean is also a great place to have fun. Many people go diving,go boating,or just walk by the sea during their holidays. Their worries(担忧) and pressure(压力) go with the sea wind and clean water.
Oxygen(氧气) and Climate
The ocean makes more than half of the oxygen in nature. And it helps keep the earth not too hot or too cold. It also provides about 90% of the rain on the earth.
The ocean is valuable and it gives us a lot of things. So it's very important to us. We must protect it!
()5. Which of the following fun activities is NOT mentioned in the text?
A. Go diving in the sea.
B. Go boating on the sea.
C. Fish in the sea.
D. Walk by the sea.
()6. [写作意图] What is the main purpose of the text?
A. To help us know the importance of the ocean.
B. To tell us the difference between oceans and seas.
C. To introduce us ways to protect the ocean.
D. To ask us to make full use of the ocean.
()7. [文本出处] Where can we probably read the text?
A. In a storybook.
B. In a science book.
C. In an art show.
D. On a volunteering web page.

B 5. C 6. A 7. B