[請益] 黃金閱讀Petroleum Resources

看板TOEFL_iBT (TOEFL_iBT托福)作者miraculouss (也無風雨也無晴)時間16年前 (2010/04/29 15:23)推噓3(3推 0噓 1→)

留言4則, 4人參與討論串1/1

Paragraph 4: As oil becomes increasingly difficult to find, the search for it is extended into more-hostile environments. The development of the oil field on the North Slope of Alaska and the construction of the Alaska pipeline are examples of the great expense and difficulty involved in new oil discoveries. Offshore drilling platforms extend the search for oil to the ocean's continental shelves—those gently sloping submarine regions at the edges of the continents. More than one-quarter of the world's oil and almost one-fifth of the world's natural gas come from offshore, even though offshore drilling is six to seven times more expensive than drilling on land. A significant part of this oil and gas comes from under the North Sea between Great Britain and Norway. Paragraph 5: Of course, there is far more oil underground than can be recovered. It may be in a pool too small or too far from a potential market to justify the expense of drilling. Some oil lies under regions where drilling is forbidden, such as national parks or other public lands. Even given the best extraction techniques, only about 30 to 40 percent of the oil in a given pool can be brought to the surface. The rest is far too difficult to extract and has to remain underground. 8．What does the development of the Alaskan oil field mentioned in paragraph 4 demonstrate? ○More oil is extracted from the sea than from land. ○Drilling for oil requires major financial investments. ○The global demand for oil has increased over the years. ○The North Slope of Alaska has substantial amounts of oil. 為什麼答案是B, 而非C呢？ C似乎也言之成理。如果不是國際對石油的需求增加，何以需要在阿拉司加開墾油田？有沒有高手可以解惑？感恩。 -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 140.112.4.181