Listening
For each question, choose the correct answer. 对于每个问题，选择正确的答案。
[剑桥初级英语考试(KET)真题改编]
You will hear a passage about saving energy.
()1. How is energy?
A. It is useless. B. It can be used forever. C. It is limited.
()2. Where does energy come from?
A. It comes from oil and coal. B. It comes from gas and the sun. C. Both A and B.
()3. What should we do when we leave the room?
A. Keep the door open. B. Turn off the lights. C. Turn on the lights.
()4. Why should we keep doors and windows closed?
A. Because it can keep the room warm in winter and keep the room cool in summer.
B. Because it can keep the room warm in summer and winter.
C. Because it can keep the room clean and quiet.

Read and fill in the blanks. 阅读短文，完成填空。 ［剑桥初级英语考试（KET）真题改编］
As we know, our planet Earth is 1. l a giant home for all living things. But sometimes, people leave rubbish, 2. w energy, or hurt animals. Let's learn how you can help protect the Earth—it's easier than you 3. t!
1. Recycle. When you finish a drink or snack, don't throw the bottle or wrapper in the regular trash! Look for recycling bins. 4. R means turning old things into new ones.
2. Turn off the lights! Electricity makes the lights on. It comes from burning coal or gas. That can make the air dirty. So when you leave a room, please turn off the lights to help save energy.
3. Save water! Water is precious! Turn off the tap while brushing your teeth. 5. T shorter showers. Even a tiny leak can waste gallons of water.
4. Plant a tree! Trees give us clean air, food, and 6. h to birds. Ask your family to plant a tree 7. t. If you can't plant one, water the plants around your house.
If everyone helps a little, the Earth will stay healthy and happy! Remember: Small actions=Big 8. c! Let's be the Earth's best friends!