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                   New energy in the 21st 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 (電) without pollution. However,people have to build dams (水壩) 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 (地熱的) energy. This kind of energy is cheap,but it is only possible in a few places in the world.

Energy from the Sun 

    Solar panels (太陽電池板) on the roofs of houses can turn energy from the Sun into electricity. Solar energy is clean and plentiful (豐富的) . But when the weather is bad,it doesn’t work.

根據短文內容，完成表格。

1. 2. 3. 4. 5.

7. There are lots of in the fish. You should be careful when eating.

() 5. My friend left here without goodbye to me.

   A. say   B. says   C. saying   D. to say

8. May 5th is an (usually) day for Daniel because it is his birthday.

() 8. I share a room a friend of .

   A. with,I   B. and,my   C. with,mine   D. to,me

3. Mr. Li (bring) as a lot of fun when he was our history teacher.

3. The (出生) of my dog Rubby makes me very happy.

2. Can you hear the (奇怪的) noise?