Passage 2 Please select one word for each blank from a list of choices given in the word bank following the passage. You may not use any of the words in the bank more than once. Dogs and cats are the world's most popular house pets, however, they use up more energy resources in a year than driving a car, according to a new book. In their book Time to Eat the Dog: The Real Guide to Sustainable Living, Robert and Brenda Vale say 1 a medium-sized dog has the same ecological 2 as driving 10,000 km a year in a 4.6 liter Land Cruiser. Calculating that the modern Fido chows through about 1 kg of meat and 95 kg of cereals a year, the Vales 3 the ecological footprint of cats and dogs, based on the amount of land 4 to grow common brands of pet food. "We're not 5 saying it is time to eat the dog. We're just saying that we need to think about the ecological impact of some of the things we do and that we take for granted." Constructing and driving the jeep for a year 6 0.41 hectares of land, while growing and manufacturing a dog's food takes about 0.84 hectares—or 1.1 hectares in the 7 of a large dog such as a German shepherd. "Issues about sustainability are 8 becoming things that are going to require us to make choices which are as difficult as eating your dog. It's not just about 9 your light bulbs or taking a cloth bag to the supermarket," he said. "It's about much more challenging and difficult issues," he added. "Once you see where cats and dogs fit in your 10 balance of things—you might decide to have the cat but not to have the two cars and the three bathrooms and be meat eater yourself." Notes: 1. Land Cruiser 陆地巡洋舰[丰田公司的运动型多功能车(SUV)] 2. Fido n. (俚语)狗 3. chow v. (俚语)吃 4. German shepherd 德国牧羊犬 5. sustainable adj. 可持续的，合理利用的 e.g. sustainable development 可持续发展