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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

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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."
【C7】
选项 A、as to
B、for instance
C、in particular
D、such as
答案D
解析 语义逻辑题。该which引导的定语从句是想说明“农作物的黄金生长期缩短到120天以内”对农作物的成熟至关重要，空格位于crops“农作物”与COLT[“玉米”之间，二者属于从属关系(玉米属于农作物)，由此推断corn是举例说明哪种农作物，故选用D项such as“例如”。A项as to“关于”一般用来引出对象。B项for instance也可表举例，但它通常表达句与句之间的衔接，用来引出论据论证某一观点；或者用作插入语，在使用中需在后面接逗号，后面不能直接跟宾语，此空格处于句中。没有逗号，故可排除。C项in particular “尤其是”表强调，无法体现crops与corn之间的从属关系。
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