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1、Unit 1 Living Green BY 淘宝店铺：淘宝店铺：HS 的英语学科中心的英语学科中心 Key to Exercises Opener Suggested answers for reference 1. There are a lot of simple things we can do to decrease energy consumption. Here are just a few examples: Use energy efficient light bulbs for our most-used lights. When we leave a room, turn
2、 off the light. Turn off our computer/laptop when we are not using it. Save water. Take quicker showers. When brushing teeth we should not leave faucet running. Use reusable cloth shopping bags that are made from plant fibers. Whenever possible, walk, bike, carpool, or use public transportation. 2.
3、Old clothes and books: Other people can reuse our unwanted clothes and books if we donate them. Old clothes can also be made into other items such as cushion covers. Old electrical equipment: Donate old electrical equipment to schools or community centers so that others can reuse them. Rechargeable
4、batteries: Unlike regular batteries that create unnecessary waste, rechargeable batteries can be reused many times before they need to be thrown away. Jars and pots: By cleaning glass jars and small pots, we can use them as small containers to store odds and ends（零星物品）. 3. Living green means reducin
5、g ones carbon footprint, or, more generally, making as small an impact on the natural environment as possible. Yes, I have thought about it. I can take some small steps to restrict energy consumption. For example, taking shorter, cooler showers. In that way I can save energy by minimizing hot water
6、use. Reading besides, the utilities are included, which means you dont have to pay anything for gas, electricity and water. 11. A central heating and cooling system produces warm or cool air in one central area and distributes it throughout the building. 12. We were deeply shocked and saddened when
7、we learned of the sudden death of our newly retired professor. 13. If you know the ins and outs of something, you know all the details about it and understand how it works. 14. Its long been proven that we can accomplish any project if we break it up into small pieces and do the project one piece at
8、 a time. 1.2 1. consist of2. tossed3. overall 4. hauling5. went out6. in use 1.3 1.Ifyoureinbusinesslongenough,itsinevitableyouwillmeet with/face/encounter setbacks. 2. Hydroelectric power plants generate electricity in a much cleaner way than coal-fired ones. 3. Knowing the proper way to do laundry
9、 will help you avoid shrinking your sweaters and dyeing your white socks pink. 4. We really appreciate the invitation to your party, but my elderly mother lives with us and we dont like to leave her alone in the evenings. 5. The hotel is OK but could make some adjustments to live up to its 5-star ra
10、ting. 6. Most of us take electricity for granted. But do you know that about 1.5 billion people in this world have no access to electrical power? 2. Usage 1. He spoke to her looking away, as though to avoid meeting her eyes. 2. I hope to arrive in Hangzhou at 2:20 pm to catch the 3:10 train to Ningb
11、o. 3. Maria refused to attend a party to which Lucia was also invited. 4. You may want to consider going on strike if you think you are paid unfair wages. 5. I remember feeling really happy when I was told they had found a house that could meet our needs. 6. If I fail to pass the exam on the first a
12、ttempt, can I take the exam again? 7. The hotel and its staff are great. We really enjoyed staying there during our trip to Nanjing. 8. It is not only your health that will improve if you give up smoking, but also the health of your family. 9. Few of my friends could resist playing this computer gam
13、e. 10. Please remember to pay back the money to Mary the moment you receive your salary next month. 3. Sentence Patterns 3.1 1. It was the day before yesterday that they set out. / It was they that set out the day before yesterday. 2. It was by the roadside that I found the lost wallet. / It was I t
14、hat/who found the lost wallet by the roadside. /It was the lost wallet that I found by the roadside. 3. It was not until he got everything ready for the experiment that Xiao Wang left the lab. 3.2 1. It took my parents half an hour to finally find their way back to the hotel. / It took half an hour
15、for my parents to finally find their way back to the hotel. 2. It took us almost two hours to work out this difficult math problem. / It took almost two hours for us to work out this difficult math problem. 3. It will take us more than three months to accomplish this art project. / It will take more
16、 than three months for us to accomplish this art project. 4. Comprehensive Practice 4.1 Cloze If you want to know all the ins and outs of living green, then you should visit Backsbottom Farm. It is run by Rod and Jane, who have tried to be as self-sufficient as possible. They use a horse to haul the logs they cut from their woods. The fields are nourished by organic waste from the horse and their other animals rather than chemicals. They rely on a windmill to generate their electricity and
