Many people still believe that natural resources will never be used up. Actually, the world’s energy resources are limited. Nobody knows exactly how much fuel is left. However, we also should use them economically and try to find out alternative sources of power. According to Professor Marvin Burnham of the New England Institute of Technology, we have to start conserving coal, oil and gas before it is too late; and nuclear power is the only alternative. However, many people do not approve of using nuclear power because it’s very dangerous. What would happen if there was a serious nuclear accident? Radioactivity causes cancer and may badly affect the future generations.The most effective thing is that we should use natural resources Marvin Bras economical as possible. 1.How much fuel left? A. there is a lot of fuel B. Let's use it as much as we would like C. No one knows exactly D. It will never be used up 2. According to professor Mavin Burnham,..... A. solar power is the only alternative B. we have to save coal, oil, and gas C. A and B are incorrect D. A and B is correct 3. Radioactivity from nuclear power..................... A. alters a new kind of energy B. is necessary to cure diseases C. can have good effects on the future generations D. causes caner and has bad effects on the future generations 4. We should use coal, oil, and gas................,, A. as much as possible B. Carelessly C. as economically as possible D. all are incorrect 5. According to the passage, using nuclear power is.............. A. interesting B. dangerous C. safe D. cheap