题目内容
Several years ago, the mayor of Chicago, Illinois, visited Germany, a leader in green roof design. Later he decided to have vegetation planted on Chicago City Hall. Today, the tops of many other buildings also look like parks. In Canada, the Coast Plaza Hotel in Vancouver has a forest on its roof. New York City has an unusual example farm for hydroponics. The farm is on a boat called the Science Barge. Rainwater and river water are used to grow lettuce, tomatoes, cucumbers and peppers. The farm shows the possibilities for designing rooftop systems.
Green roofs are designed to save energy and capture rainwater. Rooftops covered with plants help keep buildings cool. They can extend the life of a roof. And they can reduce water running off into streets and storming water systems.
Experts say green roofs usually do not get much above 27℃. So temperatures might not be a problem for growing. But rooftop gardeners have to be careful not to put too much weight on the roof. This is true whether plants are grown in soil or water.
Earlier in 2008, researchers in Texas reported that green roofs can reduce a building's air conditioning costs by about one?fifth compared to black?top roofs. But they also reported that not all green roofs perform equally well. They found that designs differ in their ability to keep buildings cool and to capture rainwater. The researchers put experimental roofs on top of metal insulated (隔热的) boxes, to recreate green roof conditions. The study compared products from six companies to help businesses understand how to improve their designs. Each rooftop had sixteen different kinds of plants native to Texas. The researchers say the presence of native plants likely helped all the green roofs capture water better compared to sedums. Sedums are plants that need little water and often are used on green roofs. The native plants could take in more water and release more of it to the atmosphere.
1.The author gave Paragraph 1 to ________.
A. tell us what is green roof design
B. tell us Germany is the country that leads or guides the green roof design
C. introduce some famous hotels in the world
D. lead to the topic of the passage
2.The advantages of green roofs are mentioned in the passage EXCEPT ________.
A. changing the local weather
B. prolonging the roof's life
C. keeping the house cool
D. reducing the house's air conditioning costs
3.According to the passage, which conclusion is WRONG?
A. Sometimes green roofs may break down the house.
B. Not all the green roofs can reduce the building's air conditioning costs equally.
C. Different designs of green roofs have different effects on buildings.
D. Sedums are a kind of plants native to Texas.
4.The experiment is mentioned in the last paragraph ________.
A. to find out how many different plants in Texas
B. to show us how to design green roofs
C. to introduce a kind of roof made of metal
D. to provide proofs to improve the design of green roofs
书面表达
假设你是光明中学的学生李华,得知国外某大学历史悠久,课程灵活,有意申请到该校英语系学习。请根据表格信息,用英语写一封自荐信。
个人信息 | 男,17岁,高三年级学生 |
性格与潜质 | 开朗,喜欢与人交往;有良好的团队精神;适应能力强 |
学习与获奖情况 | 学习刻苦,成绩名列前茅 曾获学校英语演讲比赛一等奖 |
注意: 1.词数100左右。 2.信的开头和结尾已经给出。
提示词:英语演讲比赛—English Speech Contest
Dear Sir,
My name is Li Hua from Guang Ming High School in Beijing, China.
________________________________________________________________________
________________________________________________________________________
________________________________________________________________________
________________________________________________________________________
________________________________________________________________________
________________________________________________________________________
Looking forward to your early reply.
Yours,
Li Hua