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  3. Sea rise as a consequence of global warming would immediately threaten that large fraction of the globe living at sea level. Nea

Sea rise as a consequence of global warming would immediately threaten that large fraction of the globe living at sea level. Nea

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问题     Sea rise as a consequence of global warming would immediately threaten that large fraction of the globe living at sea level. Nearly one-third of all human beings live within 36 miles of a coastline. Most of the world’s great seaport cities would be【C1】______: New Orleans, Amsterdam, Shanghai, and Cairo. Some countries—Maldives Islands in the Indian Ocean, islands in the Pacific — would be inundated. Heavily populated coastal areas such as in Bangladesh and Egypt,【C2】______large populations occupy low-lying areas, would suffer extreme【C3】______.
    Warmer oceans would spawn stronger hurricanes and typhoons,【C4】______in coastal flooding, possibly swamping valuable agricultural lands around the world.【C5】______water quality may result as【C6】______flooding which forces salt water into coastal irrigation and drinking water supplies, and irreplaceable, natural【C7】______could be flooded with ocean water, destroying forever many of the【C8】______plant and animal species living there.
    Food supplies and forests would be【C9】______affected. Changes in rainfall patterns would disrupt agriculture. Warmer temperatures would【C10】______grain-growing regions pole-wards. The warming would also increase and change the pest plants, such as weeds and the insects【C11】______the crops.
    Human health would also be affected. Warming could【C12】______tropical climate bringing with it yellow fever, malaria, and other diseases. Heat stress and heat mortality could rise. The harmful【C13】______of localized urban air pollution would very likely be more serious in warmer【C14】______. There will be some【C15】______from warming. New sea-lanes will open in the Arctic, longer growing seasons further north will【C16】______new agricultural lands, and warmer temperature will make some of today’s colder regions more【C17】______. But these benefits will be in individual areas. The natural systems—both plant and animal—will be less able than man to cope and【C18】______. Any change of temperature, rainfall,and sea level of the magnitude now【C19】______will be destructive to natural systems and living things and hence to man as well.
    The list of possible consequences of global warming suggests very clearly that we must do everything we can now to understand its causes and effects and to take all measures possible to prevent and adapt to potential and inevitable disruptions【C20】______by global warming.
【C17】
选项 A、accidental
B、habitable
C、anniversary
D、ambient
答案B
解析 此处应选择B，此句话的意思是：温暖的气温将使今天的一些寒冷地区变得更适合人类居住。A项accidental“意外的，非本质的”；B项habitable“可居住的，适于居住的”；C项anniversary“周年纪念的，周年的”；D项ambient“周围的，包围着的”。
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