题干

(2015•广东佛山)阅读下面短文,掌握其大意,然后根据短文内容和首字母提示,在短文空白处填入适当的单词,使短文内容通顺、合理。

Electricity is a type of energy that was discovered over 100 years ago. One of the most common w____  to make electricity is by changing other energy sources (), such as coal, and oil or solar, wind and falling water. You may not even realize that electricity is a huge part of your e____  life. Basically, it keeps your home and school w____  in winter and cool in summer. W____  it, you would never be able to watch your favourite TV show or listen to your MP3 player. Have you ever i____ a world in which you can't turn on a light, a computer, or even use the phone? So electricity is important to us and we n____  electricity. That's why it's time to rethink our relationship with this v____  resource (资源) and think about h____  we can do our part to use it wisely.

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ways,everyday,warm,Without,imagined,need,valuable,how