【題目】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 safer for people.

According to the World Bank, China accounts for about 30 percent of total 【7】 (globe)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】

【1】has grown

【2】the

【3】actually

【4】to improve

【5】than

【6】pollution

【7】global

【8】started

【9】that/which

【10】feeding

【解析】本文是一篇說明文。文中講述了中國(guó)為保護(hù)環(huán)境在農(nóng)作物種植上做了一些變化并得到了世界上的知名認(rèn)識(shí)的認(rèn)可。

【1】考查時(shí)態(tài)。since加時(shí)間點(diǎn)，主句要用現(xiàn)在完成時(shí)。句意：2011年以來，中國(guó)種植的玉米比水稻多。故填has grown。

【2】考查冠詞。句意：玉米產(chǎn)量在過去25年里增長(zhǎng)了近125%，而大米只增長(zhǎng)了7%。故是特指在過去的25年里。故填the。

【3】考查副詞。句意：對(duì)肉的需求實(shí)際上是這種變化的背后原因。句子結(jié)構(gòu)完整，用副詞修飾句子。故填actually。

【4】考查非謂語動(dòng)詞。句意：為了改善水質(zhì)政府鼓勵(lì)農(nóng)民種植玉米而不是大米。沒有連詞可以且謂語動(dòng)詞是encourages，故improve應(yīng)該用非謂語動(dòng)詞。此處表示目的，故用不定式。故填to improve。

【5】考查連詞。句意：玉米比大米使用的水更少。根據(jù)關(guān)鍵詞less可知，填比較連詞。故填than。

【6】考查詞性轉(zhuǎn)換。句意：這一轉(zhuǎn)變減少了中國(guó)較大的湖泊和水庫的污染，使人們的飲用水更加安全。has decreased后跟名詞作賓語，故填pollution。

【7】考查詞性轉(zhuǎn)換。句意：中國(guó)約占全球化肥總消費(fèi)量的30%。fertilizer consumption是名詞短語，故應(yīng)該用形容詞修飾。故填global。

【8】考查謂語動(dòng)詞。句意：在2005年政府開始了一項(xiàng)土壤測(cè)試項(xiàng)目。本句是when引導(dǎo)的定語從句，由于時(shí)間是2005年，故用過去時(shí)。故填started。

【9】考查定語從句關(guān)系詞。根據(jù)空后的謂語動(dòng)詞gives可知，該空缺少主語，指代program并且引導(dǎo)后面的句子。指物用that/which，故填that或者which。

【10】考查省略句。句意：中國(guó)在養(yǎng)活了中國(guó)人民的同時(shí)又保護(hù)了環(huán)境。這一做法為全世界的農(nóng)業(yè)和糧食政策制定人提供了很有用的經(jīng)驗(yàn)�？崭裉幈硎菊谶M(jìn)行的動(dòng)作，while后面省略掉了China is，省略句的原則：在時(shí)間狀語從句、條件狀語從句、，讓步狀語從句中，如果從句的主語和主句的主語一致且含有be動(dòng)詞時(shí)，那么可以把主語和be動(dòng)詞一塊省略。故填feeding。

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