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[A] The researchers calculated the different water footprints of three different diets for each region: 1. the current diet in
[A] The researchers calculated the different water footprints of three different diets for each region: 1. the current diet in
admin
2023-03-22
17
问题
[A] The researchers calculated the different water footprints of three different diets for each region: 1. the current diet in the region (based on national food consumption statistics for 1996-2005); 2. a healthy diet, based on regional guidelines; and 3. a vegetarian diet, which was based on the healthy diet, but with the meat substituted with other sources of protein, such as pulses and nuts, etc.
[B] Different European regions have very different diets and environmental conditions, meaning their water consumption varies widely. Despite this, switching to vegetarian diets in keeping with regional variation would substantially reduce water consumption in all areas, a new study concludes. Where people choose to eat meat, adopting a healthy diet low in oils and sugar will also reduce water consumption, although to a lesser degree.
[C] There is increasing pressure on global water resources, with demand rising and the effects of climate change causing concern. Water use efficiency is therefore a key issue. In the EU, the consumption of agricultural products represents 89% of the water "footprint", accounting for 42651cd (litres per person per day) out of a total of 48151cd. Diet is, therefore, thought to have a substantial influence on water consumption.
[D] In the south, the current water footprint was largest, as expected for hotter countries where, for example, irrigation may be required for crop production. However, consumption of meat was also high, with the current consumption of 58.9kg per person per year almost three times the regional recommendation of 20.8kg. The southern total of 58751cd dropped by 30% under the healthy diet and 41% under the vegetarian diet. Countries in the east eat the least meat and current water consumption of 40531cd dropped by 11% for the healthy diet and by 27% for the vegetarian diet.
[E] This study shows that reducing the amount of meat, sugar and oils in a diet can have a significant effect on the water footprint, even when regional differences are taken into consideration. The researchers do note one important limitation: water footprint estimates for fish are not available and could not be included; however, they note that this will in fact result in underestimation of current water footprint.
[F] The results demonstrate that vegetarian diets achieve the greatest reduction in water consumption across all four regions. The two lowest footprints of the current diets were in the north and west. In the north, the current water footprint is calculated as 31971cd and this dropped by 3% to 3091lcd under the healthy diet and by 32% to 21661cd under the vegetarian diet. In the west, the total of 3761 lcd was reduced by 26% as a result of the healthy diet and 41% for the vegetarian.
[G] In this study, researchers examine the effects of diet on water footprint, taking into account the differences in regional diets. The four regions were those geographical regions defined by the UN for the compilation of statistics. They included the north (Denmark, Estonia, Finland, Ireland, Latvia, Lithuania, Sweden and the UK); the east (the Czech Republic, Bulgaria, Hungary, Poland, Romania and Slovakia); the west (Austria, Belgium, France, Germany, Luxembourg and the Netherlands); and the south (Croatia, Cyprus, Greece, Italy, Malta, Portugal, Slovenia and Spain).
【D1】 → C → 【D2】 → 【D3】 → 【D4】 → 【D5】 → E
【D1】
选项
答案
B
解析
本题可以先用排除法。C和E的位置已经给出,不必考虑。A、F、G的开头分别含特指名词There searchers、The results、this study,这三段均不可能成为首段。B先讲述欧洲各地因饮食习惯和环境条件不同而导致耗水量迥异,接着通过一项研究结果引出“采用素食餐饮能有效减少水耗”这个话题,符合开篇段落惯用的行文模式。D讲的是调查结果,属于具体分析部分,上文还没介绍研究的大体情况,此处不可能直接进入对研究结果的详细讲解。相比之下,B更适合做文章首段,故为正确答案。
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0
考研英语一
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