短文填空（共8小题；每小题1分，满分8分）
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。并将完整的单词填写在答题卡的相应位置上。
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 (来源), 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.