单项选择题

A．man hasn t completely made use of the riches of the s……

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, experts believe that nearly two thirds of the world"s population live within eighty kilometers of the seacoast.
In the modem technological world the sea offers many resources to help mankind survive. Resources on land are beginning to grow less. The sea, however, still offers hope to satisfy many needs for man in the future.
The riches of the sea yet to be developed by man"s technology are impressive. Oil and gas explorations have existed for nearly thirty years. Valuable amounts of minerals such asiron, copper and so on exist on the ocean floor.
Besides oil and gas, the sea may offer new sources of energy. For example, warm temperature of the ocean can be used as the steam in a steamship. Sea may also offer a source of energy as electricity for mankind.
Technology is enabling man to explore even deeper under the sea. It is obvious that the technology to harvest the sea continues to improve. By the year 2050, experts believe that the problems to explore the food, minerals and energy resources of the sea will have been largely solved.It can be inferred from the passage that ______.

A．man hasn"t completely made use of the riches of the sea
B．technology for exploring the sea has been found
C．harvesting rice in the sea will be made possible
D．in the near future man can live on the ocean floor

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热门试题

单项选择题The passage mainly discusses ______.

A．the development of art history
B．the differences between general history and art history
C．what we can learn from art
D．the influence of artists on art history

单项选择题We can infer from the passage that those who do not work ______.

A．are likely to live a shorter life
B．will lose everything at home
C．can live as long as those who work
D．have more time to make new friends

单项选择题What can be concluded from the passage

A．Genuine writers often find their work interesting and rewarding.
B．A writer"s success depends on luck rather than on efforts.
C．Famous writers usually live in poverty and isolation.
D．The chances for a writer to become successful are small.

单项选择题What s the best title for the passage

A．Needs of Man
B．Sea Harvest and Food
C．Sea and Sources of Energy
D．Sea Exploring Technology

单项选择题Which of the following statements is TRUE according to the passage

A．In history books political views of people are entirely presented.
B．Francisco Goya expressed his religious belief in his painting The Third of May, 1808.
C．In the Middle East, you can hardly find animal or human figures on palaces or other buildings.
D．For centuries in Europe, painters had only painted on walls of churches or other religious buildings.