阅读理解SanFrancisco,aleaderinurbanrecycl

阅读理解 San Francisco, a leader in urban recycling, is preparing to turn dog waste into energy.Norcal Waste System Inc., the city’s largest garbage company, plans to test collection carts(回收车)and collection bags in a city-center park which is popular with dog walkers.A city study found that almost 4 percent of all the garbage picked up at San Francisco homes was from animal waste, Norcal Waste spokesman Robert Reid said. San Francisco has about 120,000 dogs.“The city asked us to start a program to recycle dog waste in order to cut back adding more waste in landfills(废渣埋填池) “,Reid said.Dog waste will be poured into a methane digester(沼气池),and the methane it gives off will be collected and burned to make electricity or to heat homes. “Dogs and cats in the United States produce about 10 million tons of waste a year,” Will Brinton, an environmental scientist said.“As much as we love them, our pets leave a lot of fertilizer behind them in yards and on the street but that can be a major source of contamination of groundwater,” Brinton said.European cities such as Zurich, Frankfurt, Munich and Vienna are starting biology programs to turn waste into gas ,he said.San Francisco runs a great program to recycle bottles, cars, paper and other rubbish and now two-thirds of its garbage needn’t be carried to landfills .The city’s goal is a 75 percent drop by 2010 and zero new waste in landfills by 2020.1.San Francisco will plan to use dog waste for making __________.A.fertilizerB.gasC.electricityD.methane2.What does the underlined word “ contamination” mean?A.IncreaseB.ReductionC.FlowD.Pollution3.What can we infer from the passage?A.San Francisco is short of electricityB.San Francisco has done a lot of in rubbish recycling.C.Fewer people will keep dogs as pets in San FranciscoD.There will be no rubbish by 2010 in San Francisco4.The passage is mainly about_______.A.San Francisco ‘s new policy for pet keepersB.San Francisco ‘s new plan for recyclingC.how to keep a city cleanD.how to deal with rubbish

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