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 become more difficult to access.others such as oil shales and tar may be used instead.Petrol could also be obtained from coal.
Since we started using fossil fuels,we have released 400 billion tones of carbon,and burning the entire reserves
could eventually raise world temperatures by 13℃.Among other horrors,this would result in the destruction of all rainforests and the melting of all Arctic ice.
1.we will need to cure our addiction to oil.Why does the author say so?
A.Most of the energy on Earth comes 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.
2.Which of the following statements is NOT meant by the author,according to the second paragraphv
A.Wood was the fuel of choice before coal.
B.The use if coal is declining.
C.Coal is the most environmentally unfriendly fuel next to oil.
D.Coal reserves are plentiful and will be likely to become the major fuel of choice。
3.Which country is the biggest consumer of petroleum?
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