题目

短文语法填空Diets have changed in China --- and so too has its top crop. Since 2011, the country 【1】 (grow) more corn than rice. Corn production has jumped nearly 125 percent over 【2】 past 25 years, while rice has increased only 7 percent.A taste for meat is 【3】(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 【4】(improve) water quality. Corn uses less water 【5】 rice and creates less fertilizer(化肥) runoff. This switch has decreased 【6】 (pollute) in the country’s major lakes and reservoirs and made drinking water 【7】(safe) for people.According to the World Bank, China accounts for about 30 percent of total global fertilizer consumption. The Chinese Ministry of Agriculture finds that between 2005 --- when the government 【8】(start) a soil-testing program 【9】 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 【10】(feed) its citizens “offers useful lessons for agriculture and food policymakers worldwide.” says the bank’s Juergen Voegele. 答案：【答案】【1】has grown【2】the【3】actually【4】to improve【5】than【6】pollution【7】safer【8】started【9】which/that【10】feeding【解析】这是一篇说明文。中国近年来根据人们的膳食变化调整农作物种植结构，为全球生态环境保护作出了贡献。【1】考查时态和主谓一致。句意：自从2011年，这个国家就种植玉米比水稻更多。根据时间状语Since 2011可知，句子使用现在完成时，主语the country是单数，故填has grown。【2】考查冠词。句意：玉米产量在过去25年里增长了近125%，而大米只增长了7% 。此处是特指在过去的25年，应使用定冠词the，故填the。【3】考查副词。句意：对肉的需求实际上是这种变化的背后原因。此处修饰is，应用副词形式。故填actually。【4】考查非谓语动词。句意：为了改善水质政府鼓励农民种植玉米而不是水稻。此处表示目的，故用不定式作目的状语。故填 to improve。【5】考查连词。句意：玉米比水稻使用的水更少，产生更少的化肥径流。根据关键词less可知，此处表示比较级，应填比较连词than。故填than。【6】考查名词。句意：这一转变减少了中国较大的湖泊和水库的污染，使人们的饮用水更加安全。此处应填一个名词作宾语，pollution为不可数名词，故填pollution。【7】考查形容词比较级。结合语境可知，减少污染应是使饮用水“更安全”，应填形容词比较级，故填safer。【8】考查时态。句意：中国农业部发现，在2005年政府开始了一项土壤测试项目，给农民提供具体的肥料建议。本句是when引导的定语从句，根据“between 2005”可知句子使用一般过去时，故用动词过去式。故填started。【9】考查定语从句。空处引导一个定语从句，先行词是program，关系词在从句中作主语，可使用which或that引导，故填which/that。【10】考查状语从句的省略。句意：中国在养活了中国人民的同时又保护了环境的做法为全世界的农业和粮食政策制定人提供了很有用的经验。while引导一个时间状语从句，空格处表示正在进行的动作，应使用现在进行时，完整形式是while it is feeding its citizens，在状语从句中，如果从句的主语和主句的主语一致且含有 be动词时，可将主语和be动词一起省略。故填feeding。

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