六级听力原文2018(六级听力新题型答案2018)

1.What are fats from chicken and other animals used to do by scientists at the University of Georgia? They are burned to ...

2.What is another advantage of animal fat besides low cost, according to the American scientists? Burning it is ... for people and the encironment.

3.What does America depend on to meet the domestic need of oil? ...

American scientists are developing a new use for chicken fat. Scientists at the University of Georgia in Athens are burning fat from chickens and other animals to produce heat. They have successfully used the fat to produce hot water and heat for buildings at the university. The scientists say their tests show that animal fat often is less costly than more traditional fuels. They also say that burning the fat is safe for people and the environment. They add that no one has reported smelling anything unusual from the local heat production center. Scientists with the University’s Department of Biological and Agricultural Engineering have been supervising the tests. They have burned different mixes of fuel and animal fat. The result of the tests shows that the animal fat produces about ninety percent of the heat that traditional fuel oils produce，and substances released into the air by the burning fat are low in harmful pollutants. According to Engineer Bob Synk，another member of the research team，an increasing number of Americans believe that the country’s dependence on foreign oil imports is a problem. The government’s energy plan calls for non-traditional fuels to supply up to twenty percent of America’s energy needs within twenty years. The United States already produces almost five-thousand-million kilograms of fat from chickens，cows and pigs each year. The scientists predict that chicken fat and other natural products could become important fuels in the future.

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