题型:阅读理解 题类:模拟题 难易度:普通
河北省保定市2020届高三上学期英语摸底考试试卷
Water is a necessity of life. Rain, especially, helps plants grow and stay green. But too much rain, especially in cities, can lead to flooding. That can cause waste water systems to overflow and send pollutants into rivers and other waterways. To fight the problem, several cities in the United States are starting programs like rooftop gardens.
A team at the University of the District of Columbia in the nation's capital has created a garden on the top of one school building. The garden holds many kinds of plants to help absorb rainwater and grow food at the same time. Architect David Bell has designed five "green roofs" for the university. He says he is excited about the project because "it meant doing something more than just dealing with storm water management. It took advantage of a resource above the city and these flat roofs that aren't doing anything really became something that was about urban agriculture." Rainwater is collected in large containers and sent through a system that waters the rooftop garden. The roof is filled with green life that appeals to insects.
In cities, "you don't have that many spaces to choose from and so rooftops are just (unused) space," says Caitlin Arlotta. She is a student in the school's Urban Agriculture program. The project is part of a research program to see which plants do well on rooftops. The researchers are looking at plants including strawberries, tomatoes and sweet potatoes. The university also has other green spaces. "We also have our own farm experiments," Arlotta said. "Within each of those growing systems, we want to be able to tell people which sorts of these crops grow the best."
Sandy Farber Bandier helps run UDC's Master Gardener program. It seeks to improve cities and make them beautiful by training people to become Master Gardeners. She says she's been surprised by the garden's output. "My biggest surprise was that we produced 4, 250 pounds of produce the first year and was able to spread that to people in need." She also likes being able to show people who live in D. C. and others beyond the nation's capital what and how food can be grown on a rooftop. "This is the future for food. You grow it here, you prepare it in a commercial kitchen, you distribute through farmers markets, food trucks, and then you recycle."
Welcome to our school. You can do a lot of things here. Come and join us.
Timetable |
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Sunday 8:30—11:30 Personal Inventions You can see many inventions by the students; you may also bring your own inventions. |
Monday 19:00—21:00 Space and Man Dr. Thomas West If you want to know more about the universe. |
Wednesday 19:30—21:00 Modern Medicine Mrs. Lucy Green Would you like to know medical science? |
Friday 18:30—21:00 Computer Science Mr. Harry Morison from Harvard University Learn to use Windows XP. |
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