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Human activities have negative effects on plants and animal species. Some pe

游客2025-02-18  29
问题     Human activities have negative effects on plants and animal species. Some people think it is too late to do something about the problem, while others believe that effective actions can be taken to improve this situation. Discuss both views and give your own opinion. (2016-02-18)
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答案     The expansion of the human population and the building of huge cities with changes in agriculture in an attempt to feed them have put tremendous pressure on animals and plants. It is made worse by rich people, who think they have a right to kill animals for pleasure, and others, who make traditional activities such as fishing for a particular species or killing whales more important than the need to conserve them.
    Without doubt, it is too late for the many species that are now extinct, and may be too late for others, but where there is life there is hope. What is needed is effective conservation programmes and better education.
    In Britain there are many examples of nature reserves being created, especially in old industrial areas. Habitats are created, shallow lagoons, meadows, woodland and hedgerows for example, and eventually many forms of wildlife colonise them. Insects are encouraged. They provide food for birds and small animals, which in turn provide food for animals higher up the food chain.
    There are examples too of animals and birds being reintroduced into an area, such as red kites in Royal Berkshire, ospreys at Rutland Water, and wild boar in the Forest of Dean.
    It is relatively easy to do this when people are prepared to volunteer their time and to give money, often supported by charities, local councils and the government, and there has been considerable success.
    It is far more difficult in parts of the world where wild animals can pose a danger to people, where people do not have money and time to help, where places are remote and difficult to monitor and government is in disarray. In these instances, sometimes concerned people from wealthier countries try to help, often with some success.
    Action certainly can be taken and it can be effective if the will to do something is there.
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