文档介绍：Most experts predict we will exhaust easily accessible reserves within 50 years, though opinions and estimates vary. We could fast reach an energy crisis in the next few decades, when demand exceeds supply. As conventional reserves e more difficult to access, others such as oil shales and tar sands may be used instead. Petrol could also be obtained from coal.
Since we started using fossil fuels, we have released 400 billion tonnes2 of carbon, and burning the entire reserves could eventually raise world temperatures by 13 0C. Among other horrors, this would result in the destruction of all rainforests and the melting of all Arctic ice.
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注释:
's Arctic National Wildlife Refuge:美国阿拉斯加北极国家野生动物保护区。2001年,美国众议院通过了一项基于布什提出的在那里进行石油开采的议案。该议案遭到环境保护主义组织的反对。因此,目前在该区禁止开采石油。
:公吨(=1,000公斤)。不同于ton。ton:在美国等于两千磅(=),所以称作short ton:短吨。
练****br/>1. "... we will need to cure our addiction to oil. " Why does the author say so?
A Most of the energy on es from the Sun.
B Oil supply is increasing all the time.
C Demand for oil is increasing all the time.
D Oil supply is decreasing.
of the following statements is NOT meant by the author, according to the second paragraph ?
A Wood was the fuel of choice before coal.
B The use of coal is declining.
C Coal is the most environmentally unfriendly fuel next to oil.
D Coal reserves are plentiful and will be likely to e