单选题 . ①Favorable environments do not necessarily lead to the occurrence of plant cultivation. ②South China is warmer and moister than North China and the Yangtze Basin, with wild rice and highly abundant natural resources. ③Yet archaeological data indicate that cereal cultivation did not occur in this region until approximately 7,000 to 6,500 years ago. ④This cultivation was likely a result of cultural contact with and expansion from the Yangtze Basin. ⑤Clearly, environmental factors were important for the occurrence of cultivation in China, but were not the absolute determining factors. ⑥While incipient cultivation might occur in areas of relatively abundant resources, it may not occur in areas of very abundant resources, such as South China, where foraging might be a more efficient way of life.

38. The author implies which of the following about natural resources in South China prior to 6,500 years ago? ______

A、 Their abundance may have actually served to discourage the development of plant cultivation.
B、 They were not as abundant as most archaeologists have maintained.
C、 They led indirectly to cultural contact with peoples from the Yangtze Basin.
D、 Their importance has been downplayed by scholars studying the beginnings of plant cultivation in South China.
E、 They had little influence on the types of plants that were eventually cultivated in South China.

【正确答案】 A

【答案解析】 A：对应最后一句，耕种会发生在资源丰富的地方，但是不会发生在非常丰富的地方，因此耕种没有起源于中国南方的原因可能是资源太丰富了。
B：文中未提及。
C：文中未提及。
D：文中未提及。
E：这些自然资源导致谷物种植没有起源于南方，这说明资源的丰富度还是影响了南方的种植种类。