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Several years ago, the mayor of Chicago,...

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 one­fifth compared to black­top 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

 

1.D 2.A 3.D 4.D 【解析】 试题分析:这是一篇科学类的记叙文:几年以前Illinois曾到访德国,作为“绿色屋顶”的设计师,他决定将这种设计理念带到芝加哥,而今,绿色房顶也越来越流行。 1.D.结构作用题。从文章第一段可以看出,主要是引入“绿色屋顶”的设计理念。故选D。 2.A细节判断题。从文章第二段来看,Green roofs are designed to save energy and capture rainwater. Rooftops covered with plants help keep buildings cool. 绿色的屋顶并不能改变当地的气候。故选A。 3.D推理判断题。根据文章第三段But rooftop gardeners have to be careful not to put too much weight on the roof.可知A选项正确,第四段Each rooftop had sixteen different kinds of plants native to Texas.可知D选项表达有误,故选D。 4.Sedums are plants that need little water and often are used on green roofs.”可知此段是照应开头,以证明绿色屋顶的作用。 考点:考查社会类短文
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书面表达

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主要原因

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注意: 1.短文必须包括所有内容要求,可适当发挥。

2. 短文标题与开头已为你写好,不计入总字数。

3.字数100左右。

4. 参考词汇:作弊 cheat(v) 勤奋的diligent  惩罚punish

My Opinion on Cheating in Examinations

At present, some students have picked up a bad habit--cheating in examination.

______________________________________________________________________

______________________________________________________________________

______________________________________________________________________

______________________________________________________________________

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______________________________________________________________________

 

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假定英语课上老师要求同桌之间交换修改作文,请你修改你同桌写的以下作文。文中共有10处语言错误,每句中最多有两处。错误涉及一个单词的增加、删除或修改。

增加:在缺词处加一个漏字符号(∧),并在其下面写出该加的词。

删除:把多余的词用斜线(\)划掉。

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