Rooftops covered with plants — called “green roofs” — could help fight global warming, scientists now suggest.

Green roofs are growing more popular in cities, with the number of green roofs increasing in the United States. In Germany, widely considered the leader in green roofing, some 12 percent of all flat roofs are green, with the German green roof industry growing 10 to 15 percent annually.

These roofs can reduce heating and air conditioning costs, with a roughly 10 percent reduction in natural gas usage and a 2 percent drop in electricity use for a typical building. Moreover, green roofs last two to three times longer than standard roofs. They also store storm water, which could otherwise exacerbate （加�。ゝlooding. “They can also bring in birds and butterflies, help improve biodiversity（多樣性）,” Rowe said. In addition to taking in pollution and noise, the plants in green roofs naturally absorb carbon dioxide, the leading greenhouse gas behind global warming. However, nobody had measured the potential effect of green roofs on carbon dioxide levels until now.

Scientists at Michigan State University found that replacing traditional roofing materials with green roofs in an urban area the size of Detroit, with a population of about one million, would take in more than 55,000 tons of carbon. That is roughly similar to getting rid of a year’s worth of carbon dioxide sent out by 10,000 mid-sized SUVs and trucks.

The challenges green roofs now face in the United States are something about policy and costs. “The government should not necessarily mandate(強制執(zhí)行) them, but it can provide support for them, just as they do in Germany and elsewhere,” Rowe told LiveScience. “And green roofs are more expensive, but only initially. Over time, they’re cheaper once you consider their benefits energy-wise. It takes about 11 to 14 years to break even(不贏不虧).”

53. Which of the following is NOT true?

A. Green roofs can take in the leading greenhouse gas behind global warming.

B. It is easier for green roofs to break than standard roofs.

C. A building with a green roof takes less energy to be heated.

D. Green roofs are of higher building cost.

54. We can learn from the passage that___.

A. Rowe is not optimistic about the future of green roofs

B. Germany has made it a rule to build green roofs

C. The United States is widely considered the leader in green roofing

D. Green roofs can provide habitats for birds and butterflies

55. The underlined word in the last paragraph is closest in meaning to ____.

A. at times           B. at first    C. at present         D. at last

56. Which of the following can be the best title?

A. Standard Roofs and Green Roofs

B. Green Roofs Are Growing More Popular

C. Green Roofs Help Control Global Warming,

D. Advantages of Green Roofs

練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源： 題型：閱讀理解

Driving to a friend's house on a recent evening, I was attracted by the sight of the full moon rising just above my friend’s rooftops. I stopped to watch it for a few moments, thinking about what a pity it was that most city people? Myself included? Usually miss sights like this because we spend most of our lives indoors.　　

My friend had also seen it. He grew up living in a forest in Europe, and the moon meant a lot to him then. It had touched much of his life.

I know the feeling. Last December I took my seven-year-old daughter to the mountainous jungle of northern India with some friends. We stayed in a forest rest-house with no electricity or running hot water. Our group had campfires outside every night, and indoors when it was too cold outside. The moon grew to its fullest during our trip. Between me and the high mountains lay three or four valleys. Not a light shone in them and not a sound could be heard. It was one of the quietest places I have ever known, a bottomless well of silence. And above me was the full moon, which struck me deeply.　　  

Today our lives are filled with glass, metal, plastic and fibre-glass. We have televisions, cell phones, pagers, electricity, heaters and ovens and air-conditioners, cars, computers.

Struggling through traffic that evening at the end of a tiring day, most of it spent indoors, I thought: before long, I would like to live in a small cottage. There I will grow vegetables and read books and walk in the mountains And perhaps write, but not in anger. I may become an old man there, and wear the bottoms of my trousers rolled and measure out my life in coffee spoons. But I will be able to walk outside on a cold silent night and touch the moon.

【小題1】The best title for the passage would be______.

A. Touched by the moon        B. The pleasures of modern life

C. A bottomless well of silence   D. Break away from modern life

【小題2】 What impressed the writer most in the mountainous jungle of northern India?

A. No modern equipment       B. Complete silence.

C. The nice moonlight          D. The high mountains

【小題3】Modern things (Paragraph 4) are mentioned mainly to______.

A. show that the writer likes city life very much

B. tell us that people greatly benefit from modern life

C. explain that people have less chances to enjoy nature

D. show that we can also enjoy nature at home through them

【小題4】The author wrote the passage to_______.

A. express the feeling of returning to nature

B. show the love for the moonlight

C. advise modern people to learn to live

D. want to communicate longing for modern life

查看答案和解析>>

科目：高中英語 來源：2010—2011學(xué)年浙江省杭師大附中高一第一學(xué)期期末英語卷 題型：閱讀理解

Driving to a friend's house on a recent evening, I was attracted by the sight of the full moon rising just above my friend’s rooftops. I stopped to watch it for a few moments, thinking about what a pity it was that most city people? Myself included? Usually miss sights like this because we spend most of our lives indoors.
My friend had also seen it. He grew up living in a forest in Europe, and the moon meant a lot to him then. It had touched much of his life.
I know the feeling. Last December I took my seven-year-old daughter to the mountainous jungle of northern India with some friends. We stayed in a forest rest-house with no electricity or running hot water. Our group had campfires(篝火) outside every night, and indoors when it was too cold outside. The moon grew to its fullest during our trip. Between me and the high mountains lay three or four valleys. Not a light shone in them and not a sound could be heard. It was one of the quietest places I have ever known, a bottomless well of silence. And above me was the full moon, which struck me deeply.　　  
Today our lives are filled with glass, metal, plastic and fibre-glass. We have televisions, cell phones, pagers, electricity, heaters and ovens and air-conditioners, cars, computers.
Struggling through traffic that evening at the end of a tiring day, most of it spent indoors, I thought: before long, I would like to live in a small cottage. There I will grow vegetables and read books and walk in the mountains. I may become an old man there, and wear the bottoms of my trousers rolled and measure out my life in coffee spoons. But I will be able to walk outside on a cold silent night and touch the moon.
【小題1】The best title for the passage would be______.

A．Touched by the moon
B．The pleasures of modern life
C．A bottomless well of silence
D．Break away from modern life
【小題2】 The writer felt sorry for himself because________.
A．there was too much pollution
B．he seldom enjoyed the fullest moon outsides
C．he didn’t adapt to modern inventions
D．there were too many accidents on the road
【小題3】What impressed the writer most in the mountainous jungle of northern India?
A．No modern equipmentB．Complete silence.
C．The nice moonlightD．The high mountains
【小題4】 Modern things (Paragraph 4) are mentioned mainly to______.
A．show that the writer likes city life very much
B．tell us that people greatly benefit from modern life
C．explain that people have fewer chances to enjoy nature
D．show that we can also enjoy nature at home through them
【小題5】 The author wrote the passage to_______.  
A．express the feeling of returning to nature
B．show the love for the moonlight
C．a(chǎn)dvise modern people to learn to live
D．want to share the idea of longing for modern life

查看答案和解析>>

科目：高中英語 來源：浙江省嘉興一中2009-2010學(xué)年度高一下學(xué)期4月月考 題型：閱讀理解


C
Andreea,18,from Romania, sent a photograph of the view from her window and included a brief apology, “Sorry, this picture is plain and boring. No one would like it.”
At home in New Jersey, US, Coreen Burke,16, clicked on the same image on the internet. She saw a village with its rooftops and walls painted in reds and yellows, a distant chimney(煙囪) giving off smoke. “Isn’t this amazingly different from my country?” She thought to herself.
Burke, a teenager with a skill for computers, saw beauty in that photo. She posted it to her blog, Outside My Window, which features a daily snapshot(快照) of someone’s window view around the world.
The concept is simple: We can all relate to the act of staring through a piece of glass, onto the scene on the other side. “Maybe if we understood the way people from all over the world live,” she explained, “we would all get along better than we have been lately.”
With a click of a mouse, you can see Frederic’s window in the south of France, looking out on sailboats anchored (拋錨) in a peaceful harbor. Or Virginia’s view in Canada, a winter scene with trees laced in white.
Like most high school students, Burke has traveled the world. But she says someday she hopes to collect stamps in her passport, starting with Greece and India. Her recent break was devoted to launching the site with a blogger account and recruiting(招募) contributors from deviant ART, an online art community. She posted the first window view from Switzerland, a sunset photographed by an 18-year-old. Then others came flowing in by email, up to seven a day, from as far as Kazakhstan and Indonesia.
Contributors are marked on maps pinned on her bedroom wall: a blue dot indicates their country and a pink dot shows their city, if they provide it. The most responses have come from Europe – Estonia, Poland, Italy, Germany and Sweden, to name a few. She is crossing her fingers, thinking that she’ll receive a photo from Africa or Antarctica, which are unrepresented so far.
While she’s become a cyber crusader(網(wǎng)絡(luò)革新者) for appreciating the beauty outside our own windows, get this: She has no windows in her bedroom. She has a nice skylight（天窗）, though.
51. What does Burke think of the picture she received from Andreea?
A. Boring      B. Charming    C. Strange    D. Plain
52. Outside My Window is a blog intended to show_______.
A. the view from Burke’s window
B. pictures of rural New Jersey
C. photos of window views taken by people all over the world
D. beautiful scenes of famous places of interest
53. We can conclude from the article that Burke _______.
A. believes we should reach out to people of different cultures
B. has traveled around the world and taken many pictures
C. is a member of an online art community
D. has made a lot of money by selling beautiful pictures
54. Which of the following is not true?
A. Burke is likely to receive a photo from Africa or Antarctica.
B. Burke is a junior middle school student.
C. Burke has photos from many countries in the world, including Kazakhstan.
D. Burke wants a photo of window view from Africa or Antarctica.
55．What is the best title of this passage?
A. World Windows
B. Beautiful Pictures
C. Pictures on the Internet
D. Windows in Bedrooms

查看答案和解析>>

科目：高中英語 來源：福建省寧德三縣市一中2010屆高三第二次聯(lián)考（英語） 題型：閱讀理解

Andreea,18,from Romania, sent a photograph of the view from her window and included a brief apology, “Sorry, this picture is plain and boring. No one would like it.”
At home in New Jersey, US, Coreen Burke,16, clicked on the same image on the internet. She saw a village with its rooftops and walls painted in reds and yellows, a distant chimney(煙囪) giving off smoke. “Isn’t this amazingly different from my country?” She thought to herself.
Burke, a teenager with a skill for computers, saw beauty in that photo. She posted it to her blog, Outside My Window, which features a daily snapshot(快照) of someone’s window view around the world.
The concept is simple: We can all relate to the act of staring through a piece of glass, onto the scene on the other side. “Maybe if we understood the way people from all over the world live,” she explained, “we would all get along better than we have been lately.”
With a click of a mouse, you can see Frederic’s window in the south of France, looking out on sailboats anchored (拋錨) in a peaceful harbor. Or Virginia’s view in Canada, a winter scene with trees laced in white.
Like most high school students, Burke has traveled the world. But she says someday she hopes to collect stamps in her passport, starting with Greece and India. Her recent break was devoted to launching the site with a blogger account and recruiting(招募) contributors from deviant ART, an online art community. She posted the first window view from Switzerland, a sunset photographed by an 18-year-old. Then others came flowing in by email, up to seven a day, from as far as Kazakhstan and Indonesia.
Contributors are marked on maps pinned on her bedroom wall: a blue dot indicates their country and a pink dot shows their city, if they provide it. The most responses have come from Europe – Estonia, Poland, Italy, Germany and Sweden, to name a few. She is crossing her fingers, thinking that she’ll receive a photo from Africa or Antarctica, which are unrepresented so far.
While she’s become a cyber crusader(網(wǎng)絡(luò)革新者) for appreciating the beauty outside our own windows, get this: She has no windows in her bedroom. She has a nice skylight（天窗）, though.
66. What does Burke think of the picture she received from Andreea?
A. Boring      B. Charming    C. Strange    D. Plain
67. Outside My Window is a blog intended to show_______.
A. the view from Burke’s window
B. pictures of rural New Jersey
C. photos of window views taken by people all over the world
D. beautiful scenes of famous places of interest
68. We can conclude from the article that Burke _______.
A. believes we should reach out to people of different cultures
B. has traveled around the world and taken many pictures
C. is a member of an online art community
D. has made a lot of money by selling beautiful pictures
69. Which of the following is not true?
A. Burke is likely to receive a photo from Africa or Antarctica.
B. Burke is a junior middle school student.
C. Burke has photos from many countries in the world, including Kazakhstan.
D. Burke wants a photo of window view from Africa or Antarctica.
70．What is the best title of this passage?
A. World Windows
B. Beautiful Pictures
C. Pictures on the Internet
D. Windows in Bedrooms

查看答案和解析>>

科目：高中英語 來源：2013屆山東聊城東昌府高三9月模擬調(diào)研（四）英語試卷（帶解析） 題型：閱讀理解

Imagine an eco-conscious city where rooftops have been transformed into fertile, green gardens. It's a place where every home is equipped with a system that recycles valuable water resources. In this town, protecting the planet is a way of life. That's how Abby Sharp, 14, Wyatt Peery, 13, and Tom Krajnak, 14, saw their city of tomorrow. The vision won the eighth-graders from Bexley, Ohio, first prize at the 2009 National Engineers Week Future City Competition.
The annual design competition challenges middle school students to use engineering to deal with issues that affect the earth. This year the competition focused on water conservation. Participants had to come up with ways to improve water use in the home. Kids from 38 middle schools across the country competed in the finals. The event took place from February 17-18 in Washington, D.C. More than 30,000 students entered the competition.
Abby, Wyatt and Tom call their winning city Novo Mondum. The name means "new world" in Latin. Novo Mondum sits on the coast of Iceland. The group chose the spot for its wealth of clean energy resources, such as geothermal（地?zé)岬模?energy and hydropower. Both sources use the power of nature to generate electricity. Geothermal energy draws heat from deep inside the Earth. Hydropower gets energy from flowing water. "Our city is very globally aware," Abby told TFK.
Students team up with a teacher and a volunteer engineer mentor（顧問）to develop their cities. Each group creates a fictional city on SimCity 4 Deluxe, a computer game that allows players to build virtual towns. Then they construct tabletop models of the cities and write essays describing their project. The models must be made using recycled materials and cost no more than $100 to build.
【小題1】 What’s the main feature of the city designed by the three winners?

A．Making full use of water resources.
B．Turning rooftops into green gardens.
C．Protecting our home — the earth.
D．Costing no money to build
【小題2】It can be inferred that water conversation is __________.
A．one of the problems that influence the Earth.
B．the main theme of 2009 Future City Competition.
C．one of the issues for the participants to deal with abroad.
D．a(chǎn)n easy topic for all the students to design.
【小題3】According to the passage, Abby, Wyatt and Tom are _____.
A. ninth-graders from Bexley, Ohio.
B. second prize winners at the 2009 Future City Competition.
C. lucky to get the first prize at the 2009 Future City Competition.
D. eighth-graders from Washington, D.C.
【小題4】The underlined word “hydropower” means ______________.
A．electric power from burning oil.
B．electric power from burning coals.
C．electric power from deep inside the earth.
D．electric power from moving water.
【小題5】 What’s the main idea of the last paragraph?
A．The process of developing a Future City.
B．How teachers instruct the students in the competition.
C．The process of building virtual towns.
D．What materials should be used in the competition.

查看答案和解析>>

同步練習(xí)冊答案