Part : T (true) or F 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 economic uses of electricity, because 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 conservation than we can produce for the same money. Unless we do research on solar energy, wind power, tidal power, hydroelectric plants... our fossil fuels will run out and we'll all freeze or starve to dealth. Several countries are spending much more time and money on research because the energy from the sun, the waves and the winds last forever. We really won't survive unless we start working on cleaner and safer sources of energy. 1. Fossil fuels are renewable sources of energy 2. Eletricity can be produced from the sea 3. The energy from the sun, the waves, and the winds will never be used up 4. We really need to worry about cleaner and safer sources of energy 5. What is the passage mainly about?     A. We are facing huge lack of energy    B. Electricity is the main energy we use    C. Altenative 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 Extra reading comprehension 1. Compete the paragraph, using the A-F given below. There are more than needed A. communicate with teachers by means of A. to use the Internet C. a lot of time D. connect with their teachers from home E. to communicate with customers and workers F. who use the computer network  It is estimated that about 200 million people (1)_____ around the world. The Internet allows people to work at home instead of traveling to work. The internet aloows businesses (2)______ in any part of the work for the cost of local telephone call. Email allows users to send documents, pictures and other data from one part of the word to another in at least 5 minutes. People canuse the Internet to do shopping. This saves (3)______. It is possible to use the Internet for education - students may (4)_____ to send or receive email r talk their problems throuh "on-line" rather than attend a class