B1: Decide if the statements from 13 or 16 are True or False and choose the correct answer ( A,B,C or D)for the question 17 and 18 .
(1) We can develop alternative sources of energy , and unless we try we'll never succeed. Instead of burning fossil fuels we should be concentrating on more economical uses of electricity, because (2) electricity can be produced from any sources of energy. If we didn't waste so much energy , our resources would last longer. We can save more energy by convervation than we can poduce for the same money. Unless we do research on solar energy, wind power , tidal power, hydroelectric plant ....our fossil fuels will run out and we'll all freeze or starve to death. Several countries are spending much more time and money on research because (3) the energy from the sun , the waves , and the winds last forever. (4) We won't really survive unless we start working on cleaner and safer sources of energy.
1. Fossil fuels are renewable sources of energy. F
2. Electricity can be produced from the sea . T
3. The energy from the sun, the waves and the winds will never be used up. T
4. We really need to worry about cleaner and safer sources of energy. T
5. What is the passage mainly about ?
a) We are facing huge lck of energy .
b) Electricity is the mai energy we use.
c) Alternative sources of energy must be developed.
d) It is impossible to have safer sources of energy.
6. Which source of energy cannot last forever?
a) coal
b) wind
c) water
d) waves