题型:阅读理解 题类:模拟题 难易度:普通
山东省淄博市2019届高三英语部分学校5月阶段性诊断(二模)试卷
The world's insects are going down the path of extinction, threatening a "catastrophic collapse of nature's ecosystems", according to the first global scientific review. More than 40%of insect species are declining and third are endangered, the analysis found. The rate of extinction is eight times faster than that of mammals, birds and reptiles.
"It should be of huge concern to all of us, for insects are at the heart of every food web. They pollinate (授粉) the large majority of plant species, keep the soil healthy, recycle nutrients, control pests, and much more. Love them or 1oathe them, we humans cannot survive without insects, "said Prof Dave Goulson at the University of Sussex in the UK.
The analysis, published in the journal Biological Conservation, says intensive (集约型) agriculture is the main driver of the declines, particularly the heavy use of pesticides. Urbanisation and climate change are also significant factors.
"If insect species losses cannot be stopped, this will have catastrophic consequences for both the planet's ecosystems and for the survival of mankind. It is very rapid. In 10 years you will have a quarter less, in 50 years only half left and in 100 years you will have none," said review author Francisco Sánchez-Bayo, at the University of Sydney, Australia.
One of the biggest impacts of insect loss is on many birds, reptiles, amphibians and fish that eat insects. "If this food source is taken away, all these animals starve to death," he said. Such effects have already been seen in Puerto Rico, where a recent study revealed a 98%fall in ground insects over 35 years.
Matt Shardlow, at the conservation charity Buglife, said: "It is thoughtful to see this evidence that shows the pitiful state of the world's insect populations. It is increasingly obvious that the planet's ecology is breaking and there is a need for a strong and global effort to prevent and change these terrible trends."
There are many international organizations which work to save and protect endangered species (物种) and natural environment. If you would like more information about any of the organizations listed below, you can write to the addresses given.
Friends of the Earth (FOE) campaigns on a range of problems including rainforests, the countryside, water and air pollution and energy. Friends of the Earth International Secretariat P.O. Box 19 199 1000 G. D. Amsterdam The Netherlands | Greenpeace uses peaceful but direct action to defend the environment. It campaigns to protect rainforests and sea animals' slop global warming and end pollution of air, land and seas. It also opposes nuclear (核) power. Greenpeace International Keizergracht 176 1016 DW Amsterdam The Netherlands |
BirdLife International is an organization which works to save endangered birds all over the world. BirdLife International Wellbrook Court Girton Road Cambridge CB3 ONA | England WWF-World Wide Fund For Nature is the world's largest private international organization for the protection of nature and endangered species. Information Officer WWF International Avenue du Mont —Blanc 1196 Gland Switzerland |
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