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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."
【C3】
选项 A、precisely
B、relatively
C、gradually
D、magically
答案B
解析 语义逻辑题。此空所在的分句大意为许多原先被认为安全(secure)的粮区如今可能如何如何，暗含一种往昔对比，从后面的droughts，extreme weather和higher temperatures可推测，这些粮区如今的情况应该不乐观，即前面所说的“安全”只是相对而言的安全，故选B项relatively“相对地”。A项precisely“精确地”填入文中为precisely food secure“精确安全的粮区”，过于绝对，与后面的droughts和extreme weather相矛盾。C项gradually“逐渐地”和D项magically“如魔法般地”皆不能体现句中暗含的对比关系。
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