题目内容
-- Must I apologize to Tony face to face?
-- No, you _____. You can give him a call.
A. can’t B. mustn’t C. needn’t D. shouldn’t
Complete the following passage with the words or phrases in the box. Each can only be used once. （选择与下列各句中划线部分内容意思相近的单词或短语，用A, B, C…或G等表示):
A. die out B. better C. run out D. burn |
The electricity in your home is from power stations. Power stations usually ____1.___ coal, oil or gas to make electricity. These power stations pollute our air.
Here at the Earth Friends centre we get our energy from the sun, water and wind. They give us energy every day and they’ll never_____2.____. This is renewable energy. Solar panels (太阳能板) and water and wind turbines（涡轮机） are clean and so are ____3.____ for our planet. They are environmently friendly.
E. like F. bigger G. after H. until |
Solar panels catch the sun’s energy and turn it into ecletricity. The electricity is stored in batteries _4.________ we use it. You could put solar panels on the roof of your house and make your own clean electricity.
Moving water turns the turbine and produces electricity. Hydro electric power stations（水力发电站） on rivers work in the same way but they are much ____5.____.
Windmills(风车) have existed for hundreds of years. In the past, farmers used them to make flour. Modern ones are used to produce electricity. The wind moves the turbine just ____6._____ the water moves it to make hydro electric power.
So now you know how to save energy at home and how we can make electricity every day without polluting our Earth.