Fabien Cousteau, a well-known ocean explorer, has announced plans to build a large research station under the ocean.
Though the ocean covers more than 70% of our planet, it still isn’t well explored. An expert says we have created maps of less than 20% of the world’s ocean, and only 5% has been explored.
The expert thinks exploring the ocean is far more important than exploring space. “It’s our life support system. And thanks to the ocean, we can live on Earth in the first place,” he says.
Though the ocean is all around us, studying it is a challenge. Divers are limited in how far they can go and how long they can stay below. Returning to the surface can be dangerous. After a deep dive, divers must wait for hours before they dive again. All of these means that undersea experiments are limited. The new undersea laboratory（实验室）, the lab can hold 12 people at a time.
The power for the station is expected to come from solar energy and the movement of the ocean. Proteus is also expected to have the first underwater greenhouse in the world so that the lab will be able to grow some of its own food. Mr. Cousteau hopes to have the lab completed and ready to use by 2023.
【小题1】In Paragraph 2, the writer explains that the ocean isn’t well explored by ________.| A．using diagrams | B．listing numbers | C．giving examples | D．drawing pictures |
| A．To help 12 people to return to the surface at a time. |
| B．To solve many problems about undersea experiments. |
| C．To grow most food in the first underwater greenhouse. |
| D．To use solar energy to move up and down the ocean. |
| A．instruct how to dive safely | B．explain some ocean problems |
| C．describe an ocean explorer | D．introduce an undersea station |
