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  3. A new report says the Himalayan mountains are threatened by the warming of the Earth’s climate. The report says human activities

A new report says the Himalayan mountains are threatened by the warming of the Earth’s climate. The report says human activities

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问题     A new report says the Himalayan mountains are threatened by the warming of the Earth’s climate. The report says human activities are partly【B1】______ for the warming temperatures. The climate changes【B2】______ people’s lives, the local economy and the【B3】______.
    The Himalayas are the highest mountain system in the world. A team of mountain【B4】______ from Britain, New zealand and Chile recently travelled to the Himalayas. They【B5】______ information about the environment. They spoke to local people and other travellers about the condition of the world’s most famous mountains. Their findings【B6】______ the above report. They found that warmer weather has been【B7】______ huge mountains of ice in the Himalayas. These melting glaciers (冰河) are creating lakes that could overflow and flood wide areas. Temperatures in the area have risen one degree Celsius during the past thirty years.      Satellite maps show that the glaciers are【B8】______ at a rate of thirty to forty meters each year.
    The study identified almost 5,000 glacier lakes in Nepal and Bhutan.【B9】______. UN officials say this flooding could have serious effects on local communities and the environment.【B10】______.
    Observers say community action is helping to restore the mountain environment.【B11】______. UN officials say the glacier melt in the Himalayas should be a warning to industrial countries to reduce heat-trapping gases that cause global warming.
【B9】
选项
答案Researchers say forty-four of these lakes could overflow during the next five years.
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