1. 人教课标版 高二选修 6 Unit 4 人教课标版 高二选修 6 Unit 4

2. Using language

3. Skim the letters and find who the writers are and what their purpose of writing the letters is.

4. The first letter is written by a student who is asking for suggestions for his project — global warming. The second letter is written by an editor of Earth Care magazine. He offers the student some suggestions on what to do about global warming.

5. Earth Care ’ s suggestions Can you carry it out? Reasons List Earth Care’s suggestions and then in groups, discuss whether you think you can carry out each suggestion. If you are not using electrical appliances, turn them off. Yes Save energy

6. Yes Save energy Yes Save energy Yes Save energy If you’re cold, put on more clothes instead of turning up the heat. Motor vehicles use a lot of energy, so walk or ride a bike if you can. Recycle cans, bottles, plastics and newspapers and buy things made from recycled materials.

7. Yes Save energy Yes Plants absorb carbon dioxide from the air. Plant more trees. Get your parents or friends to buy products that are made to save energy.

8. Yes Together, individuals can make a difference. Talk with your family and friends about global warming and tell them what you’ve learned.

9. Read the text carefully and fill in the blanks. What can we do about global warming? ◆ Turn a(n) 1 _________________ off when you’re not using it. ◆ Put on more clothes instead of turning up the 2 _____. ◆ Walk or 3 _________ instead of taking motor vehicles. ◆ 4 ________ cans, bottles, plastics and newspapers. electrical appliance heat ride a bike Recycle

10. ◆ Buy things made from 5 __________ __________. ◆ Buy products that are made to save 6________. ◆ 7__________ in your garden or your school yard. ◆ Talk with your family and friends about 8_______________. recycled materials energy Plant trees global warming

11. I. 根据下列各句句意及所给单词的首字母 或汉语提示，写出各单词的正确形式。 1. You’ll need three large c____ of paint. 3. I got out of the car but left the m______ running. 4. They decided to set up a(n) ______ ( 核 的 ) power station. 5. I’ll heat it up in the _________ ( 微波炉 ). cans motor nuclear microwave

12. II. 用所给词的适当形式填空。 1. There was _____________ (disagree) among doctors about the best way to treat the disease. 2. _________ (pollute) from cars is the main cause of global warming. disagreement Pollution

13. III. 根据括号内的提示将下列句子补充完 整。 1. If she could ______________________ ________ ( 忍受那里的条件 ), we would take her with us. 2. I don’t mind your knowing it ________________________ ( 只要事情不 进一步发展 ). 3. If you want to save energy, you’d better not use the air conditioner, the heater _________ ( 等等 ) when it is not necessary. put up with the conditions there so long as it goes no further and so on

14. 4. I realized that she was right — and it _________________ ( 有影响 ). made a difference