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  3. The shorter growing seasons expected with climate change over the next 40 years will endanger hundreds of millions of already po

The shorter growing seasons expected with climate change over the next 40 years will endanger hundreds of millions of already po

admin2022-10-25  70
问题     The shorter growing seasons expected with climate change over the next 40 years will endanger hundreds of millions of already poor people in the global tropics, say researchers working【C1】________the world’s leading agricultural organisations.
    The effects of climate change are likely to be seen across the entire tropical【C2】________but many areas previously considered to be【C3】________food secure are likely to become highly【C4】________to droughts, extreme weather and higher temperatures, say the researchers with the Consultative Group on International Agricultural Research.
    Intensively farmed areas【C5】________northeast Brazil and Mexico are likely to see their【C6】________growing seasons fall below 120 days, which is critical for crops【C7】________corn to mature. Many other places in Latin America are likely to【C8】________temperatures that are too hot for bean【C9】________, a staple in the region.
    The impact could be【C10】________most in India and southeast Asia. More than 300 million people in south Asia are likely to be affected even with a 5％ decrease in the【C11】________of the growing season.
    Higher peak temperatures are also expected to take a heavy【C12】________on food producers. Today there are 56 million crop-dependent people in parts of west Africa and India who live in areas where, in 40 years, maximum daily temperatures could be【C13】________than 30℃ . This is【C14】________to the maximum temperature that beans can tolerate,【C15】________corn and rice yields suffer when temperatures【C16】________this level.
    "We are starting to see much more clearly【C17】________the effects of climate change on agriculture could【C18】________hunger and poverty," said research leader Parti Kristjanson. "Farmers already【C19】________variable weather by changing their planting schedules. What this study suggests is that the speed of climate【C20】________and the magnitude of the changes required to adapt could be much greater."
【C13】
选项 A、lower
B、smaller
C、higher
D、taller
答案C
解析 上下文语义题。空格处为形容词比较级，根据主语maximum daily temperatures“日间最高气温”和下一句提到的“大豆所能承受的最高温度”，推断这里是讲气温超过30℃，故选用C项higher。30℃是大豆所能承受的最高温度，文中既然是讲一些地区受到最高温度上升的影响，那其日间最高气温应该不可能低于30℃，A项lower与文中要表达意思相反。B项smaller“小于”常用来形状等的大小，不形容气温。D项taller“高于”指具体物体或人的高度，不能用来形容表抽象概念的气温。
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