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1、|Unit 1 Living GreenKey to ExercisesOpenerSuggested answers for reference1. 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 off the light.Turn off our computer
2、/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. Old clothes and books: Other people can r
3、euse 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 batteries: Unlike regular batteries that cre
4、ate 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 reducing ones carbon footprint, or, more generally, m
5、aking 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 use.Reading & InteractingI. Understanding the T
6、ext1. Text OrganizationPartsParagraphsMain IdeasPart OneParas. 1-4The writer and her family wanted to slow things down and decided to move to a property that was off the grid.Part TwoParas. 5-10Living off the grid, the writers family had to deal with a lot of big challenges, and yet meanwhile gained
7、 many benefits.Part ThreePara. 11Conclusion: Going off the grid was a great experience for the writers family.2. Comprehension Check2.1 Focusing on the main ideas After living in the city of Las Vegas for years, Alison Zeuschel and her family decided to move to the countryside. Their home hunting en
8、ded up in a very small town in Arizona where they purchased a house on 40 acres that was not only off the grid, but without access to any (public) utilities. Just imagine the challenges facing them, such as generating their own power and hauling their own water. However, they worked hard and succeed
9、ed in making the adjustment in a few months. In addition, they benefited a lot from living off the grid there. Most important of all, they came to know the importance of conservation and learned how to conserve power and water and how to reuse things, etc. In other words they learned how to live gre
10、en.2.2 Digging into detail 1. Her daughter wanted a horse. Her husband wanted property. Her son wanted a dirt bike. The writer herself wanted her family to be more self-sufficient.2. The property was off the grid. It was actually not connected to any utilities power, water or a sewer system.3. They
11、generated electricity by wind and solar power, and stored it in 16 golf cart batteries. Water had to be hauled in from a nearby town and stored in two tanks located on the property.4. In her view, one of the greatest benefits was teaching her children the importance of conservation.5. Other changes
12、included reducing the amount of trash by recycling and composting, growing their own organic vegetables and reusing things that they would normally toss away.2.3 Understanding difficult sentences 1. A 2. B 3. B 4. A 5. BII. Focusing on Language in Context1. Key Words & Expressions1.1 1. Jack has no
13、interest whatsoever in pursuing an acting career. He loves writing and directing.2. The idea was to have users upload their medical records, so that they could be available at any time.3. Traffic jams often build up when drivers slow down to see what happened in a crash.4. A native New Yorker, Ben i
14、s familiar with the city, its neighborhoods, and all he has connections with.5. You may have already seen your dream house. Before you put in an offer, you can do a few more things to ensure you purchase the right property for the right price.6. Buying organic fruit and vegetables costs more, and fo
15、r many shoppers, the benefits hardly seem worth the extra expense.7. Self-sufficient living is the practice of providing for your own needs without outside aid or resources.8. In the interview, the writer was asked how he set about writing a novel based on a dream he once had.9. Are you thinking of
16、becoming an insurance sales agent? Take this quiz to find out if this is the right career choice for you.10. The rent for the apartment is reasonable; 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 a
