New Energy in the Twenty﹣first Century

Energy from 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 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 and clean， but it is only possible in a few places in the world．

Energy from the sun

Solar panels（太阳电池板）on the roofs of house can turn energy from the sun into electricity．Solar power is clean and plentiful（丰富的）． When the weather is bad， it doesn't work．

（1）How many kinds of energy does the passage talk about？ 　 　

A．	2
B．	3
C．	4
D．	5

（2）What kind of energy is very expensive if we want to get it？ 　 　

A．	Energy from wind
B．	Energy from the water
C．	Energy from the earth
D．	Energy from the sun

（3）What kinds of energy depend much on the weather according to the passage？ 　 　

A．	Energy from the water and energy from the wind．
B．	Energy from the water and energy from the earth．
C．	Energy from the earth and energy from the sun．
D．	Energy from the wind and energy from the sun．

（4）These kinds of energy have something in common， it is 　 　．

A．	expensive
B．	clean
C．	easy to get
D．	difficult to get

（5）According to the passage， we can know all these kinds of energy 　 　．

A．	have advantages and disadvantages
B．	are widely used in China
C．	are widely used in America
D．	are widely used in the world