人教版高中英语选修六第五单元阅读检测

阅读检测（20分钟）

A

Several animal species including gorillas (大猩猩)the in Rwanda and tigers in Bangladesh could risk extinction if impact of climate change and extreme weather on their homes is not handled, a UN report showed on Sunday.

Released during the course of global climate negotiations in Durban, the report by the United Nations Food and Agriculture Organization (UNFAO) shows how higher

temperatures, the rise in sea levels, deforestation and overuse of land have damaged the habitats of certain species, especially in Africa. "Many ecosystems have already been affected by increasing population, historical and recent deforestation, short-lasting management practices and even invasive species," Eduardo Rojas, assistant director general at the UNFAO's forestry department, said at the release of the report.

The most affected areas include mountains, islands and coastal areas, which limit the possibilities for animals to move elsewhere and create new habitats. "The remaining populations are limited to very small ecosystems. They have inbreeding (近亲繁殖) problems.., and at the end these species may disappear," he added.

Other examples of affected animals include elephants in Mall, lions in Serengeti and crocodiles in Malawi. The report says about 20~30 percent of plant and animal species will be at higher risk of extinction due to global warming and a significant number of local species may disappear by 2050 as a consequence. Other consequences could include the spread of invasive species and infectious diseases, it said.

The report urges more focus on restoration of damaged ecosystems, especially those key to dealing with climate change such as inland waters, forests and grasslands. The UNFAO also called for the creation of movement channels for animals in areas where their movement was affected. The organization said while more resources (资源) were flowing to biodiversity conservation, more action at the government and policy level was needed. It also urges local communities to develop projects that ease the effect of climate change on wildlife, naming ecotourism activities as an example. 1. What does the author tell us in Paragraph 2?

A. The theme of global climate negotiations in Durban.

B. The subject of research done by Eduardo Rojas.

C. Harmful effects of damage done to ecosystems.

D. Causes of damage done to ecosystems. 2. Why are animals living in mountains, islands and coastal areas most affected? A. They are frequently attacked by invasive species and infectious diseases. B. They have difficulty finding enough food for survival. C. They have little chance of moving to other places. D. They can hardly find mates to produce their young.

3. To avoid extinction of some animal species, the UNFAO suggested all the following ways EXCEPT ______. A. restoring damaged ecosystems B. limiting world population growth

C. creating movement channels for animals

D. urging governments and local communities to take action 4. What would serve as the best title for the passage? A. Climate change and ecotourism B. Human activities and the animal kingdom

C. Gorillas, tigers at risk due to climate change

D. How to balance human development and animal rights

B

The idea of light pollution has developed with the increase of lights in cities. In many areas, this light makes it difficult or impossible to observe stars and planets in the night sky.

There are a number of reasons why light pollution is important. One has become clear at the Mount Wilson Observatory near Los Angeles, California. Today, light from Los Angeles makes the night sky above Mount Wilson very bright. It is no longer an important research center because of light pollution.

Light pollution threatens to reduce the scientific value of research telescopes in other important observatories. They include Lick Observatory near San Jose, California and Yerkes Observatory near Chicago, Illionis.

Light pollution is the result of wasted energy. Bright light that shines into the sky is not being used to provide light where it is needed on Earth. Poorly designed lighting causes a great deal of light pollution. Lights that are brighter than necessary also cause light pollution.

Most people in America are surprised to find out that they are able to see our own galaxy(星系)，the Milky Way, with their own eyes. But about three ­fourths of Americans cannot see the Milky Way because of man ­made light. Objects in the night sky are resources that provide everyone with wonder. But light pollution threatens to prevent those wonderful sights from being seen. 5. Light pollution usually occurs________. A ．in cities

B ．in the country

C ．in wild areas

D ．in developing countries

6. Which of the following is TRUE according to the passage? A ．Mount Wilson Observatory is the most important one in America. B ．Light pollution affects observatories only.

C ．In the dark night people can observe the sky clearly.

D ．Astronomers can observe the stars clearly by the lights of the cities. 7. The victims affected by the light pollution are________. A ．children B ．grown ­ups C ．students

D ．observatories

8. The Milky Way is________.