1. 保护野生动物的重要性；
2. 提出合理建议(至少两点)；
3. 发出呼吁。
注意：1. 词数80左右；
2. 可适当增加细节，以使行文连贯。
Protecting the Wild Animals
_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________2 . The people of Chicago, Illinois, US, can thank three canals every time they drink a glass of clean water today. The building of the Illinois-Michigan Canal, the Chicago Sanitary and Ship Canal and the Cal-Sag Canal all helped the Chicago River start flowing in a different direction in 1892.
Since their construction over a century ago, these waterways have connected Lake Michigan and the Mississippi river network and ensured a regular flow of fresh water of Chicago.
However, some unusual and unfortunate side effects have also been created because of their construction. Asian carp(鲤鱼), also known as silver or flying carp, are threatened in their native habitat in the Chinese Heilongjiang, Yangtze, and Pearl River basins. But they have become increasingly successful at filling the Mississippi river network since first being introduced into Arkansas catfish farms in the 1970s to control algae(水藻). By swimming into the canals and spreading further across the country, there are now major fears that this introduced species may be able to access Lake Michigan and the wider Great Lakes - which store an incredible 21 percent of the entire world’s fresh water.
“The actual influence of Asian carp on the Great Lakes has yet to be explained clearly, and we think this uncertainty is part of the reason why they are such an obvious issue,” says Dr Cory Suski, Associate Professor in the Department of Natural Resources and Environment Sciences at the University of Illinois. He points out that adult Asian carp are too large to be hunted by anything locally, that they have a prolific(多产的) reproduction rate, and they can steal food from the other native species in the rivers. “Could they survive in the Great Lakes or is there not enough food for them?” he asks.
Stopping the fish from spreading has therefore become a key concern for local lawmakers, who have made efforts such as building electric fences in the Chicago Sanitary and Ship Canal. However, any big efforts to stop the carp - such as allowing the Chicago River to once again flow in its original direction - would in turn threaten the security of the city’s water supply, replacing one big problem with another.
1. According to the text, the construction of the three canals .| A．changed the direction of the Mississippi river. |
| B．brought fresh water to the people of Chicago. |
| C．lasted for almost a century because of huge cost. |
| D．has been the largest construction project in US history. |
| A．have nearly become extinct in Chinese rivers. |
| B．have occupied large areas in the Great Lakes. |
| C．were introduced to the US to fight against algae pollution. |
| D．are likely to pollute the fresh water in the Great Lakes. |
| A．Its large size and fast reproduction rate. |
| B．The food shortage facing the species. |
| C．Its threat to the Great Lakes ecosystem. |
| D．Its natural enemies in the local areas. |
| A．US law makers knew little of the threat caused by Asian carp. |
| B．Electric fences might not be enough to stop the spread of Asian carp. |
| C．The Chicago River has changed its flowing direction many times. |
| D．People in Chicago will soon face a serious water supply shortage. |
3 . It is widely acknowledged that cities with some kind of functioning ecosystems make for better place for humans to live. More plants and animals in cities make for happier, healthier people.
A study conducted on green spaces in Sheffield, England, for instance, revealed that the greater the biodiversity (生物多样性), the greater the psychological well-being(健康) of the city’s citizens. In Paris, researchers found that getting citizens to take part in day-long activities involving urban wildlife opened their eyes to the natural world for a time, at least.
Few cities have been associated with urban ecology for as long as Berlin. “Slow economic recovery after the Second World War meant that reconstruction would take a long time. This provide local ecologist with the ideal conditions to develop an ambitious ecological research program in the bombed-out wastelands of West Berlin,” said Jens Lachmund, a sociologist at the University of Maastricht in the Netherlands.
The pioneering work in Berlin had several consequences, especially the formation of significant natural spaces within the city, such as the Sudgelande Nature. “Berlin has indeed benefited a lot from being a case study in urban ecology,” said Lachmund.
The recent research conducted by Mark Goddard, a biologist at the University of Leeds, and his colleagues confirmed the importance of natural space within an urban setting. Goddard and his team conducted a striking global analysis of bird and plant diversity, quantifying the influence of urbanization on levels of biodiversity around the world. “Functioning urban ecosystems will be extremely important to human health and well-being,” said Goddard.
Cities take up just 3% of the land surface area, yet according to the most recent figure from the United Nations, some 3.6 billion people (just over 50% of the global population) now live in urban areas. By 2050, this figure is expected to rise to 6.3 billion. Without animals and plants to keep us company, it is a dark future.
1. The findings in Paragraph 2 are mentioned to explain the link between .| A．Citizens and their well-being |
| B．green spaces and urban wildlife |
| C．urban ecology and citizens’ well-being |
| D．functioning ecosystems and the natural word |
| A．Cautious. |
| B．Admiring. |
| C．Uncaring. |
| D．Negative. |
| A．the negative effect of over population. |
| B．the importance of urban ecosystems. |
| C．the serious problems of city life. |
| D．the rapid growth of urban areas. |
| A．Should cities be for animals and plants too? |
| B．Should Berlin have more natural spaces? |
| C．Should more people live in urban areas? |
| D．Should the global population be controlled now? |
