There is now increasing concern about the world’s energy (1) , particularly about those involving fossil (2) . In less than a hundred years we shall probably (3) all the present (4) of oil and gas. The world’s coal (5) should last longer but, once used up, these cannot be (6) . It is important, therefore, that we should develop such (7) sources of energy as solar energy and nuclear energy as well as water and wind (8) (classed as (9) energy). Until these energy (10) are widely used, it is important for the developed countries to reduce energy consumption as much as possible.
| 1 A.possessions | B. resources | C. goods | D. materials |
| 2 A. fuels | B. powers | C. forms | D. energies |
| 3 A. end | B. complete | C. total | D. exhaust |
| 4 A. findings | B. productions | C. amounts | D. sources |
| 5 A. reserves | B. stores | C. mines | D contents |
| 6 A. updated | B. repeated | C. renewed | D. produced |
| 7 A. traditional | B. alternative | C. revolutionary | D. surprising |
| 8 A. force | B. strength | C. power | D. motion |
| 9 A. repeatable | B. continual | C. renewable | D. continuous |
| 10 A. goods | B. supplies | C. provisions | D. materials |
