2011ÄêÖ°³ÆÓ¢ÓïÀí¹¤ÀàÔĶÁÀí½â
ÐÂÔöÎÄÕÂÆªÄ¿
µÚ¶þƪ World Crude Oil Production May Peak a Decade Earlier Than Some Predict
µÚÁùƪ Waving With Light
*µÚÈýÊ®ËÄÆª Batteries Built by Viruses *µÚÈýÊ®°Ëƪ Longer Lives for Wild Elephants
+µÚËÄÊ®ÎåÆª Some People Do Not Taste Salt Like Others +µÚËÄÊ®Áùƪ Marvelous Metamaterials ×¢£º
1¡¢+±íʾA¼¶ÎÄÕ£»*±íʾB¼´ÎÄÕ£»ÆäËûΪC¼¶ÎÄÕ£» 2¡¢ÍêÐÎÌî¿ÕÇë²Î¼ûµÚ21Ò³£»
3¡¢2011Äê´Ê»ã²¿·ÖÓë2010Äê½Ì²ÄÏà±Èδ×÷Èκα仯¡£
µÚ¶þƪ
World Crude Oil Production May Peak a Decade Earlier Than Some Predict
In a finding that may speed efforts to conserve oil, scientists in Kuwait predict that world conventional crude oil production will peak in 2014. This prediction is almost a decade earlier than some other predictions£®Their study is in ACS¡¯ Energy£¦Fuels£®
Ibrahim Nashawi and colleagues point out that rapid growth in global oil consumption has sparked a growing interest in predicting \oil\£®\oil \the point where oil production reaches a maximum and then declines. Scientists have developed several models to forecast this point, and some put the date at 2020 or later. One of the most famous forecast models is called the Hubbert model. It assumes that global oil production will follow a bell shaped curve. A related concept is that of \production Will peak, afterwards to start on irreversible decline£®
1
4
3
2
1
The Hubbert model accurately predicted that oil production would peak in the United States in 1970. The model has since gained in popularity and has been used to forecast oil production worldwide£®
However, recent studies show that the model is insufficient to account for more complex oil production cycles of some countries£®Those cycles can be heavily influenced by technology changes, politics, and other factors, the scientists say. The new study describes development of a new version of the Hubbert model that provides a more realistic and accurate oil production forecast£®Using the new model, the scientists evaluated the oil production trends of 47 major oil-producing countries, which supply most of the world¡¯s conventional crude oil£® They estimated that worldwide conventional crude oil production will peak in 2014, years earlier than anticipated. The scientists also showed that the world's oil reserves are being reduced at a rate of 2.1 percent a year. The new model could help inform energy-related decisions and public policy debate, they suggest. ´Ê»ã£º
Conserve v£® ±£»¤£¬±£´æ crude oilÔÓÍ
spark v£®ÉÁÒ«£»¼¤·¢£»¹ÄÎè curve n£®ÇúÏß
irreversible adj£®²»¿ÉÄæµÄ£¬²»¿É¸Ä±äµÄ insufficient adj.³ä·ÖµÄ£¬²»×ãµÄ ×¢ÊÍ£º
1£®ACS' Energy & Fuels£ºACSÊÇAmerican Chemical Society(ÃÀ¹ú»¯Ñ§Ñ§»á)µÄËõд¡£¸Ãѧ»á³ÉÁ¢ÓÚl876Ä꣬ÏÖÒѳÉΪÊÀ½ç×î´óµÄ¿Æ¼¼Ð»á¡£¶àÄêÀ´£¬ACSÒ»Ö±ÖÂÁ¦ÓÚΪȫÇò»¯Ñ§Ñо¿»ú¹¹¡¢ÆóÒµ¼°¸öÈËÌṩ¸ßÆ·ÖʵÄÎÄÏ××ÊѶ¼°·þÎñ¡£ACS³ö°æµÄÆÚ¿¯ÓÐ34ÖÖ£¬ÕâЩÆÚ¿¯ÔÚ»¯Ñ§ÁìÓòÖÐÊDZ»ÒýÓôÎÊý×î¶àµÄ»¯Ñ§ÆÚ¿¯£¬Energy£¦Fuels¼´ÊÇÆäÖÐÒ»±¾¡£
2£®the Hubbert model£ººÕ²®ÌØÄ£ÐÍÊÇÃÀ¹úµØÖÊѧ¼ÒM£®King HubbertÓÚ1956Äê´´½¨µÄ£¬ÕâÊÇÒ»¸öËæÊ±¼äÔö³¤µÄÄ£ÐÍ£¬Hubbert½«ÆäÒýÈëÓÍÆøÌ↑·¢£¬¾ÍƵ¼Ê¹Æä³ÉΪһ¸ö¿ÉÒÔÔ¤²â
2
7
6
5
ÓÍÆøÌïÀÛ»ý²úÁ¿¡¢Ë²Ê±²úÁ¿¡¢Äê²úÁ¿ºÍ¿É²É´¢Á¿µÈ¶àÏ·¢Ö¸±êµÄ¶à¹¦ÄÜÔ¤²âÄ£ÐÍ¡£ 3£®a bell shaped curve£ºÖÓÐÎÇúÏß 4£®that of peak oil£ºthatÖ¸´úconcept¡£ 5£®account for£ºËµÃ÷£¬½âÊÍ
6£®conventional crude oil£º³£¹æÔÓÍ
7£®oil reserves£ºÊ¯ÓÍ´¢Á¿¡£Í¨³£Ê¹Óø´ÊýÐÎʽreserves¡£ Á·Ï°£º
1£®Which of the following is closest in meaning to the word \appearing in paragraph 2? A£®flashed B£®stimulated C£®changed D£®ended
2£®The term \oil production will
A£®take the shape of a flat curve£® B£®keep growing£® C£®keep declining£®
D£®start to decline after global oil production peaks£® 3£®Which of the following is NOT true of the Hubbert model?
A£®It successfully predicted that oil production peaked in the U£®S£®in l 970£® B£®It has been used to predict oil production in many countries£®
C£®It is insufficient to explain oil production cycles in some countries£® D£®It provides a very realistic and accurate oil production£®
4£®What is the major achievement of the new study mentioned in the last paragraph? A£®It predicts global oil production will peak in 2014£® B£®It predicts oil production will decline in 47 countries£® C£®It confirms further the effectiveness of the Hubbert model£® D£®It discovers a new trend of Worldwide oil production£®
3
5£®Who develop the new version of the Hubbert model? A£®American scientists£® B£®Kuwaiti scientists£® C£®British scientists£®
D£®Scientists of 47 major oil-producing countries£®
´ð°¸ÓëÌâ½â£º
1£®B sparkÒ»´Ê×ö¼°Îﶯ´ÊʹÓÃʱÓÐ\·¢¶¯\¡¢\¼¤·¢\µÄÒâ˼£¬ÔÚ´ËÒâΪstimulated£¬¼´\Òý·¢\£¬Õâ¸ö¾ä×ÓµÄÒâ˼ÊÇ£ºÈ«ÇòʯÓÍÏû·ÑµÄ¿ìËÙÔö³¤ÒÑÒý·¢Á˶Ô\ʯÓÍ·åÖµ\Ô¤²âµÄÐËȤ¡£ 2£®D´Ë¾ä½ÓÏÂÀ´µÄ¾ä×ÓÖÐËùÌáµ½µÄa related concept¼´ÊÇÓëa bell shaped curveÏà¹ØµÄ¸ÅÄҲ¾ÍÊÇ˵£¬½ÓÏÂÀ´µÄÕâ¸ö¾ä×Ó¶Ôa bell shaped curve×öÁ˽âÊÍ£¬¼´ÊÀ½çʯÓÍÉú²ú´ïµ½×î´ó·åÖµºó½«Ï½µ¡£
3£®D ÎÄÕµĵÚÈý¶Î¸æËßÎÒÃÇ£¬HubbertÔ¤²âÄ£Ð;«È·µØÔ¤²âµ½ÃÀ¹úʯÓÍÉú²úÓÚ1970Ä꽫´ïµ½·åÖµ¡£ÕâһģÐÍ×ÔÊܵ½¹«ÈϺó£¬ÒÑÓÃÓÚÔ¤²âÊÀ½çʯÓÍÉú²ú¡£µÚËĶÎ˵£¬ÕâһģÐͶÔÓÚijЩ¹ú¼Ò¸ü¼Ó¸´ÔÓµÄʯÓÍÉú²úÖÜÆÚ¶øÑÔ£¬Æä¼ÆËãÉв»³ä·Ö¡£ÕâЩÉú²úÖÜÆÚÊܵ½¼¼ÊõµÄ¸Ä±ä¡¢Õþ²ßºÍÆäËûÒòËØµÄºÜ´óÓ°Ïì¡£ËùÒÔ£¬A¡¢BºÍC¶¼ÊǶÔHubbertÄ£Ð͵ÄÕýȷ˵Ã÷¡£
4£®AÑ¡Ïî8¡¢CºÍDËùÊöÄÚÈݾùδÔÚÎÄÕÂÖÐÌáµ½¡£×îºóÒ»¶Î¸æËßÎÒÃÇ£¬¿ÆÑ§¼ÒʹÓÃеÄÄ£ÐÍÆÀ¹ÀÁË47¸öÖ÷ÒªµÄ²úÓ͹ú¼ÒµÄʯÓÍÉú²úÇ÷ÊÆ£¬²¢Ô¤¼ÆÈ«Çò³£¹æÔÓÍÉú²úµ½2014Ä꽫´ï×î¸ß·åÖµ¡£ËùÒÔ£¬AÊǴ𰸡£
5£®B ¶ÌÎĵÚÒ»¶ÎµÄµÚÒ»¸ö¾ä×ÓÌṩÁ˴𰸡£
4