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A. accelerate B. arguable C. consequently D. effect E. expected
A. accelerate B. arguable C. consequently D. effect E. expected
游客
2024-09-07
37
管理
问题
A. accelerate B. arguable C. consequently D. effect E. expected
F. extra G. issue H. negligible I. offsetting J. prices
K. raise L. rise M. surprisingly N. temperatures O. volume
Global warming is already cutting substantially into potential crop yields in some countries—to such an extent that it may be a factor in the food price increases that have caused worldwide stress in recent years, researchers suggest in a new study. Wheat yields in recent years were down by more than 10 percent in Russia and by a few percentage points each in India, France and China compared with what they probably would have been without rising 【C1】______, according to the study. Corn yields were off a few percentage points in China, Brazil and France from what would have been 【C2】______, said the researchers, whose findings were published in Friday’s 【C3】______ of the journal Science.
Some countries saw small gains from the temperature increases, however. And in all agricultural countries, the 【C4】______ carbon dioxide that humans are pumping into the air acted as a fertilizer that encouraged plant growth, 【C5】______ some of the losses from rising temperatures caused by that same greenhouse gas. The study’s authors, 【C6】______, found that when the gains in some countries were weighed against the losses in other countries, the overall global 【C7】______ of climate change has been small so far: losses of a few percentage points for wheat and corn from what they would have been without climate change. The general impact on production of rice and soybeans was 【C8】______, with gains in some regions entirely counterbalancing losses in others.
But the authors of the study pointed out that temperature increases were expected to 【C9】______ in coming decades, making it likely that the challenges to food production will grow in an era when demand is expected to 【C10】______ sharply. [br] 【C6】
选项
答案
C
解析
空格所在句结构完整,因此空格处应填入副词作状语。本句的“全球性气候变化对小麦和玉米产量下降几个百分点的……甚小”是上一句“一方面二氧化碳引起的升温造成农作物产量减少,另一方面二氧化碳又作为肥料促进了植物生长”的结果,故选表“结果”的consequently“因此,所以”。本句是由上一句得出的结论,并不让人意外,surprisingly表示“意外地”不符合语境。
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