A．the government will cover production costs

　　B．global food supplies will be even lower

　　C．investment in agriculture will be profitable

　　D．America will increase its food export

　　【解析】　细节理解题。由文中倒数第三段最后一句“Production costs are going to be valuable enough...in agriculture.”可知农产品升值，故C项符合题意。A项原文未提及；由文中倒数第三段第二句“...global supplies are at all­time record lows...” 可排除B项；由文中倒数第二段第一句“The Department of Agriculture has programs aimed at developing more farmers and at increasing interest in locally grown food.”可排除D项。

　　【答案】　C

　　4．What do the underlined words “to turn around the statistics” in the last paragraph mean?

　　A．To re­analyze the result of the national census.

　　B．To increase agricultural production.

　　C．To bring down the average age of farmers.

　　D．To invest more in agriculture.

　　【解析】　词义猜测题。由本句中“that this is a new time in agriculture—will motivate the next generation”可推测该画线处意为“改变这一数据”，即鼓励更多的年轻人从事农业，降低农民的平均年龄，故C项符合题意。

　　【答案】　C

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