I. Choose the word which has a different stress pattern from the others. 1. A. excellent B. marvelous C. familiar D. similar 2. A. musician B. scientist C. energy D. biogas 3. A. abundant B. wonderful C. convenient D. important 4. A. excellent B. dangerous C. plentiful D. polluting 5. A. exercise B. calendar C. travelling D. convenience II. Find which word or phrases does not belong to each group. 6. A. water B. coal C. gas D. oil 7. A. wind B. wave C. sun D. coal 8. A. limited B. unlimited C. plentiful D. abundant 9. A. hydropower B. panels C. cells D. solar 10. A. unreasonable B. overpriced C. expensive D. costly III.Choose the correct answer. 11.What should we do to electricity? A. cut B. take C. save D. waste 12.Someone’s carbon is a measurement of the amount of carbon dioxide that their activities produce. A. effect B. amount C. footprint D. energy 13. source of energy is the source that can’t be replaced after use. A. Renewable B. Natural C. Effective D. Non-renewable 14.We are looking for cheap, clean and source of energy. A. effective B. efficient C. serious D. dangerous 15.We should put on our roof for the heating and hot water. A. solar energy B. equipment C. cracks D. solar panels 16.We should use light bulbs in our homes. A. low energy B. little energy C. a bit energy D. efficient 17.In my opinion, nuclear power is not only expensive but also to our environment. A. danger B. dangerous C. rick D. disaster 18.Several governments try to the use of fossil fuels. A. reduce B. increase C. waste D. save 19.It is a good idea to use when travelling long distances. A. cars B. taxis C. private cars D. public transport 20.Wave energy is a source of energy. A. environment friendly B. environmentally friendly C. environmental friendly D. environmentally friendliness 21.Remember to the lights before going to bed. A. turn B. turn off C. turn on D. stop 22.A hydropower station in the North of the country next year. A. was built B. were built C. will be built D. has been built 23.Biogas is and cheap for cooking and heating. A. plenty B. abundant C. serious D. expensive 24.“Why is it called a source?” – “Because it can be replaced easily and quickly.” A. effective B. specific C. renewable D. non-renewable 25.At this time next week, we a wind turbine in our garden. A. install B. installed C. will installed D. will be installing 26.Alternative sources of energy developed in the near future. A. is B. was C. has been D. will be IV. Use the cues given to write correct sentences. 27.We/ looking/ cheap, clean, effective source/ energy/ not cause pollution or waste natural resources. A.We look for a cheap, effective source of energy which doesn’t cause pollution or waste natural resources. B.We are looking for a cheap, clean, effective source of energy that doesn’t cause pollution or waste natural resources. C.We have looked for a cheap, clean, effective source of energy which doesn’t cause pollution or waste natural resources. D.We have been looking for a cheap, clean, effective source of energy that doesn’t cause pollution or waste natural resources. 28.All present/ most/ our electricity/ come/ use/ coal, gas, oil or nuclear power. A. At present, most of our electricity have come from the use of coal, gas, oil or nuclear power. A. At present, most of our electricity is coming from the use of coal, gas, oil or nuclear power. A. At present, most of our electricity are coming from the use of coal, gas, oil or nuclear power. A. At present, most of our electricity comes from the use of coal, gas, oil or nuclear power. 29.This power/ could/ provide/ sun. A. This power could be provided by the sun. A. This power could have been provided by the sun A. This power could provided by the sun A. This power could provide by the sun 30.One percent/ solar energy/ reach/ earth/ enough/ provide power/ the total population. A.One percent of the solar energy that reach the earth is enough to provide power for the total population. B.One percent of the solar energy that reaches the earth are enough to provide power for the total population. C.One percent of the solar energy that reaches the earth is enough to provide power for the total population. D.One percent of the solar energy that reaches the earth is enough to provided power for the total population.