【高考英语阅读理解】我们能否在减少化肥的同时养活世界

1、 关于氮肥，我们该如何权衡利弊每年的10月16日为世界粮食日，随着气候变化以及人们环保意识的增强，控制氮肥过度使用的问题越来越受大家重视，但氮肥又是粮食作物的重要肥料，我们究竟能否在减少化肥使用的同时养活世界，这个问题值得大家去思考。More than any other aspect of the climate crisis, it is the over-production of carbon dioxide that has been valued. But nitrogen（氮）, and its abundant use in commercial fertilizer（化肥）,

2、 also leads to air pollution and climate change. Evidence suggests their use also contributes to air pollution, increases the rates of cancer and reduces biodiversity, as well as releasing gas (laughing gas). But nitrogen helps feed around half the worlds population and remains essential for the for

3、eseeable future. With prices of fertilizer rising, many developing countries dont have access to it, with resulting threats to food security. The global nitrogen challenge involves both reducing fertilizer use, and getting it to where its needed most.A team of scientists has come up with a five-step

4、 plan to solve this two-sided problem. Benjamin Houlton, the leader, explains that only by undertaking a holistic approach and combining solutions can the problem be solved on both levels. The five steps identified involve changing agricultural practices, getting fertilizer to the places its needed,

5、 reducing nitrogen pollution and finally, both reducing food waste and promoting a change in diet. The latter two are essential because approximately one-quarter of all global food produced is wasted along the supply chain, which means that a large portion of the nitrogen fertilizer applied to crops

6、 is ultimately wasted.Benjamin admits that adding nitrogen to the list of existing climate woes might cause a sense of exhaustion. Nevertheless, he has an encouraging message. “The truth is, nitrogen is a blessing and a curse,” he says, “But if you can reduce the spill-overs of nitrogen, you can qui

7、ckly get systems to return to a more original state. That makes it very different from CO2. We lock in 30 to 50 years of climate impacts every time we send out a molecule（微粒）of CO2 into the air. But with nitrogen you can get immediate returns on investment.”1. Why does the author mention carbon diox

8、ide in paragraph 1?A. To introduce the harm of nitrogen pollution.B. To explain the effects of producing CO2. C. To present the results of using fertilizer.D. To show the seriousness of air pollution.2. Whats paragraph 2 mainly about?A. The prices of nitrogen fertilizer. B. The challenges of nitroge

9、n fertilizer.C. The importance of nitrogen fertilizer. D. The two-sided problem of nitrogen fertilizer.3. According to paragraph 4, why are the last two steps important?A. They can ensure the security of food supplies. B. They can solve the problem of climate change.C. They can meet the need of agri

10、cultural fertilizer.D. They can reduce the waste of nitrogen resources.4. What does Benjamin convey in his words?A. Producing CO2 could get more returns. B. The release of CO2 may be more harmful. C. The impacts of nitrogen are more permanent.D. Reducing nitrogen could get more efficient results.参考答

11、案：ADDD单词学习：1. carbon dioxide 二氧化碳 the over-production of carbon dioxide 二氧化碳的生产过剩 2. holistic adj. 整体的 a holistic approach 全盘着眼，整体分析3. agricultural practices 耕作方法4. woe n. 灾难 climate woes 气候危机5. curse n. 祸根 Nitrogen is a blessing and a curse. 氮是福也是祸。长难句：The latter two are essential because approximately one-quarter of all global food produced is wasted along the supply chain, which means that a large portion of the nitrogen fertilizer applied to crops is ultimately wasted.主干：The latter two are essential译文：后两者至关重要，因为全球生产的食品中约有四分之一是在供应链上浪费的，这意味着用于作物的很大一部分氮肥最终都被浪费了。知识拓展