Special Bridges Help Animals Cross the Road
----- Reported by Sheila Carrick
Why did the chicken cross the road? To get to the other side.
Most people know this joke. But recently, some people have been much more concerned with how the grizzly bear and mountain lion can cross the road.
Millions of animals die each year on U.S. roads, the Federal Highway Administration reports. In fact, only about 80 ocelots, an endangered wild cat, exist in the U.S. today. The main reason? Road-kill.
"Ecopassages" may help animals cross the road without being hit by cars. They are paths both over and under roads. "These ecopassages can be extremely useful, so that wildlife can avoid human conflicts," said Jodi Hilty of the Wildlife Conservation Society.
But do animals actually use the ecopassages? The answer is yes. Paul Beier of Northern Arizona University found foot marks left by mountain lions on an ecopassage that went under a highway. This showed that the lion used the passage.
Builders of some ecopassages try to make them look like a natural part of an area by planting trees on and around them. Animals seem to be catching on. Animals as different as salamanders and grizzly bears are using the bridges and underpasses.
The next time you visit a park or drive through an area with a lot of wildlife, look around. You might see an animal overpass!
45. The writer uses the example of “ocelots” to show that_________.
A.wild animals have become more dangerous
B.the driving conditions have improved greatly
C.the measure for protecting wildlife fails to work
D.a(chǎn)n increasing number of animals are killed in road accidents
46. From the news story, we know an ecopassage is_________.
A.a(chǎn)n underground path for cars B.a(chǎn) fence built for the safety of the area
C.a(chǎn) bridge for animals to get over a river D.a(chǎn) pass for animals to cross the road
47. When the writer says that animals seem “to be catching on”, he means_________.
A.a(chǎn)nimals begin to realize the dangers on the road
B.a(chǎn)nimals begin to learn to use ecopassages
C.a(chǎn)nimals are crossing the road in groups
D.a(chǎn)nimals are increasing in number
48. The writer asks visitors and drivers to look around when traveling because_________.
A.wild animals may attack cars B.wild animals may jam the road
C.they may see wild animals in the park D.they may see wild animals on ecopassages
科目:高中英語 來源: 題型:閱讀理解
Planting trees around poultry farms can improve air and water quality -- and relations with neighbors. Research has shown that just three rows of trees near poultry houses can reduce the release of dust and ammonia(氨). They can also reduce the strong smell of ammonia gas.
The trees take dust, ammonia and odors in their leaves. They also provide shade from the sun, so they reduce cooling costs in summer. And they act as a windbreak, so they reduce heating costs in winter. Trees can also improve water quality around farms by removing pollutions from soil and groundwater.
Several years ago, people were objecting to the odor of poultry farms on the Delmarva Peninsula in the eastern United States. Delmarva is where the states of Delaware, Maryland and Virginia come together. Two thousand farms there can each house an average of seventy-five thousand chickens.
Traditionally the farms used windows to provide fresh air in the chicken houses. Farmers rarely planted trees or tall crops around the buildings, so there would be no barrier to the airflow. But then farms began to use new ventilation systems. Instead of windows, the new systems used tunnel fans to circulate air. The fans directed airflow from the poultry houses toward the homes of neighbors.
Researchers began dealing with the problem in two thousand. They found that over a period of six years, planting three rows of trees reduced total dust and ammonia by more than half. And they found that smells were reduced by eighteen percent.
Farmers may think trees will take too long to grow and be effective. But some trees can grow quickly. At least one-third of the Delmarva farms have planted trees, technically known as vegetative environmental buffers. The idea offers a way to cut pollution, save money and energy, and make the neighbors happy.
The second paragraph mainly tells us ______.
A. planting trees as much as possible
B. the advantages of trees
C. how to reduce heating costs
D. why trees are received
The word “odor” in paragraph 3 means ______.
A. plant B. smell C. height D. water
The farms on the Delmarva Peninsula used to use ______ in chicken houses to provide fresh air.
A. trees B. tunnel fans C. windows D. poles
It can be learned from the last two paragraphs that ______.
A. three rows of trees are really good to the environment
B. researches began to realize the problem in 2000
C. most farmers show interest in planting trees
D. the trees growing quickly can be cut off in a few years
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研究主題 | 豐富多彩,選擇性強(qiáng),如當(dāng)?shù)氐娘L(fēng)俗習(xí)慣、人民生活變化、環(huán)境保護(hù)等。 |
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感想與體會 | …… |
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參考詞匯:agricultural chemicals農(nóng)藥?
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