2017年9月英语等级考试pets-4阅读强化训练
聪明出于勤奋,天才在于积累。以下是小编为大家搜索整理的2017年9月英语等级考试pets-4阅读强化训练,希望对正在关注的您有所帮助!更多精彩内容请及时关注我们应届毕业生考试网!
Sustainable development is applied to just about everything from energy to clean water and economic growth, and as a result it has become difficult to question either the basic assumptions behind it or the way the concept is put to use. This is especially true in agriculture, where sustainable development is often taken as the sole measure of progress without a proper appreciation of historical and cultural perspectives.
To start with, it is important to remember that the nature of agriculture has changed markedly throughout history, and will continue to do so eval agriculture in northern Europe fed, clothed and sheltered a predominantly rural society with a much lower population density than it is today. It had minimal effect on biodiversity, and any pollution it caused was typically localized. In terms of energy use and the nutrients captured in the product it was relatively inefficient.
Contrast this with farming since the start of the industrial revolution. Competition from overseas led farmers to specialize and increase yields. Throughout this period food became cheaper, safe and more reliable. However, these changes have also led to habitat(栖息地)loss and to diminishing biodiversity.
What’s more, demand for animal products in developing countries is growing so fast that meeting it will require an extra 300 million tons of grain a year by the growth of cities and industry is reducing the amount of water available for agriculture in many regions.
All this means that agriculture in the 21stcentury will have to be very different from how it was in the will require radical thinking. For example, we need to move away from the idea that traditional practices are inevitably more sustainable than new ones. We also need to abandon the notion that agriculture can be “zero impact”. The key will be to abandon the rather simple and static measures of sustainability, which centre on the need to maintain production without increasing damage.
Instead we need a more dynamic interpretation, one that looks at the pros and cons(正反两方面)of all the various way land is used. There are many different ways to measure agricultural performance besides food yield: energy use, environmental costs, water purity, carbon footprint and biodiversity. It is clear, for example, that the carbon of transporting tomatoes from Spain to the UK is less than that of producing them in the UK with additional heating and lighting. But we do not know whether lower carbon footprints will always be better for biodiversity.
What is crucial is recognizing that sustainable agriculture is not just about sustainable food production.
1. How do people often measure progress in agriculture?
A) By its productivity C) By its impact on the environment
B) By its sustainability D) By its contribution to economic growth
2. Specialisation and the effort to increase yields have resulted in________.
A) Localised pollution C) competition from overseas
B) the shrinking of farmland D) the decrease of biodiversity
3. What does the author think of traditional farming practices?
A) They have remained the same over the centuries B) They have not kept pace with population growth
C) They are not necessarily sustainable D) They are environmentally friendly
4. What will agriculture be like in the 21st century
A) It will go through radical changes B) It will supply more animal products
C) It will abandon traditional farming practices D) It will cause zero damage to the environment
5 What is the author’s purpose in writing this passage?
A) To remind people of the need of sustainable development
B) To suggest ways of ensuring sustainable food production
C) To advance new criteria for measuring farming progress
D) To urge people to rethink what sustainable agriculture is
参考答案:BDCAD
-
2016年公共英语三级写作常用句子考前必背
英语作文考前如果背诵一些常用句子,效果还是可以有的。距离2016年3月份的公共英语三级考试,剩下的备考时间已经不多了,同学们可以利用考前冲刺的时间背诵下面小编整理的写作常用句子,可以对写作起到帮助的。2016年公共英语三级写作常用句子(一)1、Youcantelltheyli...
-
全国英语等级考试一级单项填空精选题2022
在学习、工作生活中,我们都经常看到试题的身影,借助试题可以检测考试者对某方面知识或技能的掌握程度。相信很多朋友都需要一份能切实有效地帮助到自己的试题吧?以下是小编为大家收集的全国英语等级考试一级单项填空精选题2022,欢迎阅读与收藏。全国英语等级考试一...
-
2017公共英语考试三级作文范文鉴赏
Winnersdowhatlosersdon'twanttodo.以下是小编为大家搜索整理的2017公共英语考试三级作文范文鉴赏,希望能给大家带来帮助!更多精彩内容请及时关注我们应届毕业生考试网!part1Directions:YoushouldwriteyourresponsestobothPartAandPartBofthissectiononANSW...
-
陕西杨凌2017上半年全国英语等级考试报名时间
陕西杨凌2017上半年全国英语等级考试报名时间:2016年12月3-5日(工作时间9:00--18:00)。2017年上半年全国英语等级(PETS)考试报名安排通知全国英语等级考试是经中华人民共和国教育部批准,由教育部考试中心推出的面向社会、以全体公民为对象的开放的非学历性考试,应...