Man is a land animal, but he is also closely tied to the sea. Throughout history the sea has served the needs of man. The sea has provided man with food and a convenient way to travel to many parts of the world. Today, nearly two-thirds of the world’s population lives within 80 kilometers of the sea coast.
In the modern technological world, the sea offers many resources to help mankind survive. Resources on land are beginning to be used up. The sea, however, still can be expected to supply many of man’s needs.
The list of riches of the sea yet to be developed by man’s technology is impressive. Oil and gas explorations have been carried out for nearly 30 years. Valuable amounts of minerals exist on the ocean floor ready to be developed.
Fish farming promises to be a good way to produce large quantities of food. The culture of fish and shellfish is an ancient skill practiced in the past mainly by eastern people.
Besides oil and gas, the sea may offer new sources of energy. Experts believe that the warm temperature of the ocean can be used in a way similar to the steam in a steamship. Ocean and waves offer possible use as a source of energy.
Technology is enabling man to explore even more deeply under the sea. The development of strong, new materials has made this possible.
The technology to harvest the sea continues to improve. Experts believe that by the year 2020 the problems that prevent us from exploiting fully the food, minerals, and energy sources of the sea will be largely solved.
Which of the following are the types of resources that sea offer man?
A.fish, shellfish and oil |
B.food, gas and oil |
C.warm temperature and ocean currents |
D.food, energy sources and minerals |
How can the warm temperature of the ocean be used as a possible source of energy?
A.It can be used as a huge air-conditioner to warm the ship. |
B.It can work in a way similar to the steam in a steamboat. |
C.The heat of the warm ocean can be transported to factories. |
D.The heat of the warm ocean can be stored and delivered. |
We can conclude from this passage that ______.
A.the sea resources have largely been used up |
B.the sea in the broad sense, has not yet been developed |
C.the problems stopping us from developing the sea have been solved |
D.modern technology is good enough to exploit all the sea resources |
The following statements are true except ______.
A.Over half of the world’s population lives within 80 kilometers of the sea coast. |
B.Resources on land are used up while the sea still can be developed to supply man’s needs. |
C.Oil and gas explorations have been carried out for nearly 30 years. |
D.Previously, fishing is an old skill practiced mainly by eastern people. |
The best title for this passage is ______.
A.Harvesting the sea with technology |
B.Supplying Sea Food |
C.Technology for Developing the Sea |
D.Man and the Sea |