题目内容
一Which song do you like better．Maria？
一I prefer the song Manual of Youth ______ is sung by TFBOYS．
A. who B. whom C. which D. /
New Energy in the Twenty-first Century
Energy from the wind
Wind is a kind of clean energy, and there is lots of it, But, if there’s no wind, there is no wind energy.
Energy from the water
When water moves from a high place to a lower place, it can make electricity(电）without pollution. However, people have to build dams(水坝) to use this energy, and building dams is very expensive.
Energy from the earth
There is heat in the rocks under the earth. Scientists use the heat to make geothermal(地热的)energy. This kind of energy is cheap, but itis only possible in afew places in the world.
Energy from the sun
Solar panels (太阳电池板) on the roofs of houses can turn energy from the sun into electricity. Solar power is clean and plentiful(丰富的).but when the weather is bad, It doesn’t work.
New Energy in Twenty-first Century
Advantages | Disadvantages | |
Wind Energy | Clean .There is a lot. | It needs 1. |
Water Energy | No 2. | It is 3. |
Geothermal Energy | It’s4. | only possible in a few places |
Solar Energy | Clean and plentiful. | It depends too much on5. |