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  3. Young discoverers need not despair—though there are few blanks left on today’ s map of the world, there are still unexplored rea

Young discoverers need not despair—though there are few blanks left on today’ s map of the world, there are still unexplored rea

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问题     Young discoverers need not despair—though there are few blanks left on today’ s map of the world, there are still unexplored realms to be charted in the depths of the oceans, the most remote recesses of the rain forests and the furthest reaches of outer space. Some scientists speculate there maybe 10 million species—perhaps even 100 million—living on the ocean floor that are yet to be discovered. Recent research suggests that all told some 90% of the world’ s plants and before they are even described and named(that is, if their habitats are not destroyed before they are even found). Given these remarkable statistics, it’ s clear that the physical world still offers intrepid explorers new frontiers of discovery.
    In this section on recent discoveries of the world around us, TIME travels 500m beneath the surface of the Pacific Ocean with Bruce Robison as he encounters a new species of luminous "jelly ," we make our way deep into the world’ s tropical rain forests, where more than half of all life-forms on the planet live; we look into outer space to examine the role asteroids may have played in mass extinctions of the past and the potential threat they pose to our own civilization; and we ask whether there is life—intelligent or otherwise—elsewhere in the universe.
    John Hemming, former director of London’ s royal Geographical Society, arguably the world’ s epicenter of exploration, defines an explorer as someone "who goes to the edge of knowledge and brings back something new. " The people profiled in this section fit that description perfectly. The discoveries they have brought back from their explorations form new pieces in the puzzle of how the world works. As the pieces fit together, we get a glimpse of what a strange and beautiful mosaic it is.
What is implied in Paragraph 1 of this passage?
选项 A、Each new discovery offers young explorers new hope.
B、All plants and animals must be found before their habitats are destroyed.
C、Scientists have found more than 100 million species on the earth.
D、There is still much for young discoverers to explore in the world.
答案D
解析 文章开头讲到尽管如今地图上几乎没有了空白，但是Young discoverers need not de—spair，因为在海底，热带雨林，外太空中还有很多未探知的领域。选项D的说法与此相符。
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