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

admin2022-10-25  79
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."
【C20】
选项 A、transfers
B、quakes
C、transits
D、shifts
答案D
解析 上下文语义题。此处填入名词，与climate构成名词性短语。该段首句提及气候变化(climate change)会加剧饥饿与贫穷，接着讲农民对多变的天气所采取的措施，其讲述的核心均是气候变化，再结合空格后的并列名词短语the magnitude of the changes required to adapt“为适应所作的改变”，推断填入的名词应该也是表示“变化”之意，D项shifts“变化”填入文中表示“气候变化的速度”，符合语境。A项transfers“迁移”和C项transits“运输”也能体现“改变”的意思，但transfer通常指地点、局势或工作等方面的变化，transit则侧重指把人或货物从一个地方运送到另一个地方，且二者不宜被climate修饰。B项quakes“震动”代入句中为climate quake，语义不通。
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