I. Read the passage and choose the correct answer for the each questions.
Almost all our energy comes from oil, coal, and natural gas. We call them fossil fuels. The earth's fossil fuels are running out. What will happen when there is no oil, coal and gas on the earth?Scientists are trying to find and use other alternative sources of energy. We can use energy from the sun, the wind, and the water.Solar energy is unlimited. The sun supplies all the energy used to grow plants, to evaporate water for rain, and to maintain the temperature of the planet. All are necessary for human life. If we are able to collect solar energy, we will be sure to have this abundant source of power.
.Another source of energy from nature is the wind. Wind power is clean and plentiful. Energy from the wind has been used for centuries to move ships, grind grain, pump water and do other kinds of work. In more recent time, wind power has been used to generate electricity.
.Water can also provide power. For a long time, people have used water to power machines. Some early uses of water power were to mill grain, saw wood and power machinery for the textile industry. Today water power is mostly used to generate electricity.
1.the fossil fuel on Earth are_______
A.unlimited                     B.being used up            C.renewable               D.not used now
2.solar energy means the power from the____
A.fossil fuel                     B.temperature               C.electricity                  D. sun
3. The word "abundant" in the passage is closest in meaning with ________.
A. limited                        B. natural                      C. plentiful                     D. necessary
4, Nowadays  water energy is mainly used to______-
A.power machinery        B. mill grain                   C.saw wood                  D. generate electricity.
5. what is the passage about?
A.fossil fuel                    B. wind energy               C.water energy             D.source of energy