Question

【題目】閱讀短文，回答下列問(wèn)題。
D
Some of the world's most significant problems never hit headlines. One example comes from agriculture. Food riots （暴動(dòng)）and hunger make news. But the trend lying behind these matters is rarely talked about. This is the decrease in the growth in production of some of the world's major crops. A new study by the University of Minnesota and McGill University in Montreal looks at where, and how far, this decline is occurring.
The authors take a vast number of data points for the four most important crops: rice, wheat, corn and soybeans. They find that on between 24% and 39% of all harvested areas, the improvement in production that took place before the 1980s slowed down in the 1990s and 2000s.
There are two worrying features of the slowdown. One is that it has been particularly sharp in the world's most populous countries, India and China. Their ability to feed themselves has been an important source of relative stability both within the countries and on world food markets. That self-sufficiency (自給自足) cannot be taken for granted if productions continue to slow down.
Second, production growth has been lower in wheat and rice than in corn and soybeans. This is problematic because wheat and rice are more important as foods, accounting for around half of all calories consumed. Corn and soybeans are more important as feed grains. The authors note that “we have preferentially focused our crop improvement efforts on feeding animals and cars rather than on crops that feed people and are the basis of food security in much of the world.”
The report also states the more optimistic findings of another new paper which suggests that the world will not have to dig up a lot more land for farming in order to feed 9 billion people in 2050, as the Food and Agriculture Organization has argued.
Instead, it says, thanks to slowing population growth, land currently ploughed（犁）up for crops might be able to revert (回返) to forest or wilderness. This could happen. The trouble is that the prediction assumes continued improvements in productions, which may not actually happen.
（1）What significant problem does the writer think we should pay more attention to?
A.The decline of the grain production growth
B.News headlines in the leading media.
C.Food riots and hunger.
D.The food supply in populous countries.
（2）Why does the author mention India and China in particular?
A.Their big populations are causing worldwide concerns.
B.Their food yields have begun to decrease sharply in recent years.
C.Their self-sufficiency is vital to the stability of world food markets.
D.Their food self-sufficiency has been taken for granted.
（3）What does the new study by the two universities say about recent crop improvement efforts?
A.They fail to produce the same remarkable results as before the 1980s.
B.They contribute a lot to the improvement of human food production.
C.They play a major role in guaranteeing the food security of the world.
D.They focus more on the increase of animal feed than human food grains.
（4）What does the Food and Agriculture Organization say about world food production in the coming decades?
A.The growing population will greatly increase the pressure on world food supplies.
B.The optimistic prediction about food production should be viewed with caution.
C.The slowdown of the growth in yields of major food crops will be reversed.
D.The world will be able to feed its population without expanding the area of farmland.
（5）How does the author view the argument of the Food and Agriculture Organization?
A.It is built on the findings of a new study.
B.It is based on a doubtful assumption.
C.It is backed by strong evidence.
D.It is open to further discussion.

Answer 1

【答案】
（1）A
（2）C
（3）D
（4）D
（5）B
【解析】作者分析了明尼蘇達(dá)大學(xué)和蒙特利爾麥克吉爾大學(xué)的一項(xiàng)新研究，并指出了關(guān)于糧食方面的一些問(wèn)題。
(1)A細(xì)節(jié)理解題。由第一段中的“But the trend lying behind these matters is rarely talked about. This is the decline in the growth in yields of some of the world’s major crops. A new study by the University of Minnesota and McGill University in Montreal looks at where, and how far, this decline is occurring”可知，世界上一些主要農(nóng)作物的產(chǎn)量下降，人們很少關(guān)注到這一點(diǎn)。the University of Minnesota and McGill University in Montreal的新研究研究了農(nóng)作物產(chǎn)量下降的區(qū)域和程度。下文圍繞這一研究做了闡述。故作者想吸引我們對(duì)農(nóng)作物產(chǎn)量下降這一現(xiàn)象的關(guān)注。A選項(xiàng)正確。
(2)C細(xì)節(jié)理解題。由第三段中的“One is that it has been particularly sharp in the world's most populous(人口多的)countries, India and China. Their ability to feed themselves has been an important source of relative stability both within the countries and on world food markets. That self-sufficiency cannot be taken for granted if yields continue to slow down or reverse”可知，中國(guó)和印度這兩個(gè)國(guó)家的糧食自給自足能力影響著它們本國(guó)和世界糧食市場(chǎng)的穩(wěn)定。所以，作者尤其以這兩個(gè)國(guó)家為例。故C選項(xiàng)正確。
(3)D細(xì)節(jié)理解題。由倒數(shù)第三段中的“The authors note that ‘we have preferentially focused our crop improvement efforts on feeding animals and cars rather than on crops that feed people and are the basis of food security in much of the world'”可知，這些努力主要以提高那些喂養(yǎng)動(dòng)物的農(nóng)作物的產(chǎn)量為中心，而不是以提高那些養(yǎng)活人類的農(nóng)作物的產(chǎn)量為中心。故D選項(xiàng)正確。
(4)D細(xì)節(jié)理解題。由倒數(shù)第二段中的“the world will not have to dig up a lot more land for farming in order to feed 9 billion people in 2050, as the Food and Agriculture Organization has argued”可知，the Food and Agriculture Organization提出，未來(lái)，世界不用再開拓更多的耕種土地，就可以養(yǎng)活90億人口。故D選項(xiàng)說(shuō)法正確。
(5)B推理判斷題。由最后一段中的“The trouble is that the forecast assumes continued improvements in yields, which may not actually happen”可知，the Food and Agriculture Organization的說(shuō)法是建立在糧食產(chǎn)量持續(xù)增加的前提下的。而作者認(rèn)為，糧食產(chǎn)量增加這種情況實(shí)際上不可能發(fā)生。故作者認(rèn)為the Food and Agriculture Organization的說(shuō)法建立在令人質(zhì)疑的假設(shè)之上。故B選項(xiàng)正確。