第三部分 语言知识运用(共两节，满分45分)
第二节 (共10小题；每小题1.5分，满分15分)
阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。
Diets have changed in China — and so too has its top crop. Since 2011,the country________61 （grow）more corn than rice. Corn production has jumped nearly 125 percent over ________62 past 25 years, while rice has increased only 7 percent.
A taste for meat is ________63 (actual) behind the change: An important part of its corn is used to feed chickens, pigs, and cattle. Another reason for corn's rise: The government encourages farmers to grow corn instead of rice ________64 (improve) water quality. Corn uses less water ________65 rice and creates less fertilizer(化肥) runoff. This switch has decreased ________66 (pollute) in the country's major lakes and reservoirs and made drinking water safer for people.
According to the World Bank, China accounts for about 30 percent of total ________67 (globe)fertilizer consumption. The Chinese Ministry of Agriculture finds that between 2005—when the government ________68 (start) a soil-testing program ________69 gives specific fertilizer recommendations to farmers - and 2011, fertilizer use dropped by 7.7 million tons. That prevented the emission(排放) of 51.8 million tons of carbon dioxide. China's approach to protecting its environment while ________70 (feed) its citizens "offers useful lessons for agriculture and food policymakers worldwide." says the bank's Juergen Voegele.
参考答案：61. has grown 62. the 63. actually 64. to improve 65. than66. pollution 67. global 68. started 69. that/which 70. feeding