A third of the planet’s land is severely degraded and fertile soil is being lost at the rate of 24bn tonnes a year, according to

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问题     A third of the planet’s land is severely degraded and fertile soil is being lost at the rate of 24bn tonnes a year, according to a new United Nations-backed study that calls for a shift away from destructively intensive agriculture. The alarming【C1】______ , which is forecast to continue as demand for food and productive land increases, will add to the risks of conflicts unless【C2】______ actions are implemented, warns the institution behind the report.
    "As the ready supply of healthy and productive land dries up and the population grows, competition is【C3】______ for land within countries and globally," said executive secretary of the UN Convention to Combat Desertification (UNCCD) at the launch of the Global Land Outlook. "To【C4】______ the losses, the outlook suggests it is in all our interests to step back and rethink how we are managing the pressures and the competition. "
    The Global Land Outlook is【C5】______ as the most comprehensive study of its type, mapping the interlinked impacts of urbanization, climate change, erosion and forest loss. But the biggest factor is the【C6】______ of industrial farming. Heavy tilling, multiple harvests and【C7】______ use of agrochemicals have increased yields at the【C8】______ of long-term sustainability. In the past 20 years, agricultural production has increased threefold and the amount of irrigated land has doubled, notes a paper in the outlook by the Joint Research Centre (JRC) of the European commission. Over time, however, this【C9】______ fertility and can lead to abandonment
of land and【C10】______ desertification.
A) absorb I) limited
B) abundant J) minimize
C) billed K) occasionally
D) decline L) optimizes
E) diminishes M) rate
F) expansion N) remedial
G) expense O) ultimately H) intensifying
【C5】

选项

答案C

解析 空格前是is,因此空格处应填入动词的分词形式与is一起构成句子谓语,或填入形容词作is的表语。此外,无论填入形容词还是动词,都应该能与as搭配使用。空格后提到,该报告描绘了城市化、气候变化、水土流失和森林损失之间的相互关联,因此该报告被认为是对土地情况最全面的研究。bill…as…是固定搭配,意为“把……宣传为……”,故C)billed为答案。
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