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  3. Since the 1970s, archaeological sites in China’s Yangtze River region have yielded evidence of sophisticated rice-farming societ

Since the 1970s, archaeological sites in China’s Yangtze River region have yielded evidence of sophisticated rice-farming societ

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问题     Since the 1970s, archaeological sites in China’s Yangtze River region have yielded evidence of sophisticated rice-farming societies that predate signs of rice cultivation elsewhere in East Asia by a thousand years. Before this evidence was discovered, it had generally been assumed that rice farming began farther to the south. This scenario was based both on the geographic range of wild or free-living rice, which was not thought to extend as far north as the Yangtze, and on archaeological records of very early domestic rice from Southeast Asia and India (now known to be not so old as first reported). Proponents of the southern-origin theory point out that early rice-farming societies along the Yangtze were already highly developed and that evidence for the first stage of rice cultivation is missing. They argue that the first hunter-gatherers to develop rice agriculture must have done so in this southern zone, within the apparent present-day geographic range of wild rice. Yet while most strands of wild rice reported in a 1984 survey were concentrated to the south of the Yangtze drainage, two northern outlier populations were also discovered in provinces along the middle and lower Yangtze, evidence that the Yangtze wetlands may fall within both the present-day and the historical geographic ranges of rice’s wild ancestor.
Based on the passage, skeptics of the idea that rice cultivation began in the Yangtze River region can point to which of the following for support?
选项 A、Lack of evidence supporting the existence of rice-farming societies along the Yangtze at an early date
B、Lack of evidence regarding the initial stages of rice cultivation in the Yangtze region
C、Recent discoveries pertaining to the historical geographic range of rice’s wild ancestor
D、New information regarding the dates of very early domestic rice from Southeast Asia
E、New theories pertaining to how hunter-gatherers first developed rice agriculture in East Asia
答案B
解析 本题选择的方向是“削弱”长江是水稻种植的发源地。B选项对应第四句。A项也能说明长江不是起源地，但是注意审题，Based on the passage，因此应该选原文本身的内容。根据第一句，长江有早期的水稻种植社会，所以排除选项A。C、D、E项均为“新”，加之本题要求选原文提到的，而文章提到的和“新”有关的内容都在支持长江是水稻种植的发源地，而非削弱，所以均不选。
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