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1、 英语六级阅读考试重点训练试题 A bull grazes on dry wheat husks(Phi) in Logan, Kansas, one of the regions hit by therecord drought that has affected more than half of the U. S. and is expected to drive up foodprices. Leadinu water scientists have issued one of the sternest warnings yet about global foodsupplies,sa
2、ying that the worlds population may have to switch almost completely to avegetarian diet over the next 40 years to avoid catastrophic shortages. Adopting a vegetarian diet is one option to increase the amount of water available to growmore food in an increasingly climate-unstable world, the scientis
3、ts said. Animal protein-richfood consumes 5 to 10 times more water than a vegetarian diet. One third of the worldsarable(适于耕种的) land is used to grow crops to feed animals. Other options to feed peopleinclude eliminating waste and increasing trade between countries in food surplus and those indeficit
4、. 900 million people already go hungry and 2 billion people are malnourished in spite of thefact that per capita food production continues to increase, they said. With 70% of allavailable water being in agriculture, growing more food to feed an additional 2 billion peopleby 2050 will place greater p
5、ressure on available water and land. The report is being released at the start of the annual world water conference inStockholm,Sweden,where 2,500 politicians,UN bodies,non-governmental groups andresearchers from 120 countries meet to address global water supply problems. Competition for water betwe
6、en food production and other uses will intensify pressure onessential resources,the scientists said.The UN predicts that we must increase foodproduction by 70% by mid-century.This will place additional pressure on our alreadystressed water resources, at a time when we also need to allocate more wate
7、r to satisfy globalenergy demand- which is expected to rise 60% over the coming 30 years-and to generateelectricity for the 1.3 billion people currently without it, said the report. Overeating,undernourishment and waste are all on the rise and increased food productionmay face future constraints fro
8、m water scarcity. We will need a new recipe to feed the world in the future,said the reports editor,AndersJagerskog. A separate report from the International Water Management Institute (IWMI) said the bestway for countries to protect millions of farmers from food insecurity in sub-Saharan Africa and
9、south Asia was to help them invest in small pumps and simple technology,rather than todevelop expensive,large-scale irrigation projects. Farmem across the developing world are increasingly relying on and benefiting from small-scale,locally-relevant water solutions.These techniques could increase yie
10、lds up to 300% andadd tens of billions of U. S. dollars to household revenues across sub-Saharan Africa and southAsia. said Dr. Colin Chartres,the director general. 61. What can be inferred from the water scientists warning? A. The record drought forces half of the U. S. to go hungry. B. The record
11、drought drives up food prices m the U. S. C. Severe food shortage may happen without proper measures. D. A vegetarian diet is the only option to avoid disastrous shortages. 62. What do the scientists say can be done to increase food supply? A. Grow more animal protein-rich food. B. Turn pastures int
12、o arable lands. C. Promote trade between countries self-sufficient in food. D. Increase the amount of water for food production. 63. According to the water scientists report, A. per capita food production has been increasing B. reduced food supply will make more people malnourished C. 70% of water w
13、ill be used to feed 2 billion people by 2050 D. researchers begin to seek solutions to tackle water problem 64. In regard to the problem of water supply, scientists believe A. more water should be allocated to satisfy energy demand B. food production must be increased to 70% by mid-century C. energy
14、 demand will intensify pressure on water resources D. electricity generation must be increased by 60% 30 years later 65. What does the IWMI say is the best solution to food insecurity in sub-Saharan Africaand south Asia? A. Applying small pumps and simple technology. B. Launching large-scale irrigat
15、ion projects. C. Increase the local household revenues. D. Investing in a new expensive irrigation project. 参考答案 61.C)此题考察对水资源科学家警示的理解。定位段指出，一些水科学带头人公布了一个关于全球粮食供给的最高级警报，指出为了避开灾难性的粮食紧缺，在将来的四十年，世界人口的饮食可能不得不几乎全转换为素食，故答案为C)。 62.D)此题考察科学家对于增加食物供给量的建议。定位句指出，科学家指出，素食的饮食习惯是在渐渐不稳定的气候条件下增加用来生产更多的食物的可用水资源总量的”一
16、种选择，故答案为D)。 63.A)此题考察对水资源科学家讨论报告的理解。文中第四段第一句指出，科学家们说： “尽管人均粮食产量在持续增加，但仍有9亿人正在挨饿，20亿人养分不良，故答案为A)。 64.c)此题考察科学家对于水资源供应的 态度。文中第六段第一句指出，报告中提到，“联合国猜测，到本世纪中叶，我们必需增加70%的粮食产量。这会给本就紧急的水资源造成更大的压力”。第三句 指出，“与此同时，我们需要安排更多的水资源来满意世界能源的需求”，故答案为c)。 65.A)此题考察解决撒哈拉以南非洲地区及南亚缺水问题的最正确途径。定位段指出，在撒哈拉以南非洲地区和南亚地区，防止农夫患病粮食危机的最好方法是帮忙他们投资建筑小型水泵和使用简洁的技术，这远远好于开发昂贵的、大规模的浇灌工程，故答案为A)。