温馨提示：
此套题为Word版，请按住Ctrl,滑动鼠标滚轴，调节合适的观看比例，答案解析附后。关闭Word文档返回原板块。
课时素养评价 十五
Unit 5 Using Language
Ⅰ. 单句语法填空
1. What some scientists have found is that their long-term use can sometimes harm both the land and people’s health.
2. Pesticides can damage the land by killing not only harmful bacteria and insects, but also helpful ones.
3. Organic farming is simply farming without using (use) any chemicals.
4. Organic farmers also use many other methods (method) to produce rich soil.
5. The goal of using different organic farming methods is to grow good food while avoiding (avoid) damage to the environment or to people’s health.
6. Some people would prefer to stop the use of man-made chemicals in agriculture entirely (entire).
7. What keeps them from doing so is the fact that chemical farming serves the high demand for food around the world.
Ⅱ. 完成句子
1. When they were first introduced, many farmers welcomed them as a great way to fight crop disease and increase production.
2. Very loud noise can make people ill or drive them mad.
很大的声音会使人身体不适, 或使他们发狂。
3. Recently customers have turned to organic food when shopping at the local grocery.
4. For example, many organic farmers use natural waste from animals as fertiliser.
例如, 许多有机农民使用来自动物的天然废弃物作为肥料。
5. Organic farming is nowhere near able to meet the need.
有机农业完全不能满足那样的需求。
6. Therefore, there is still a long way to find a suitable solution that puts sufficient food on the dinner table while keeping people and the environment as healthy as possible.
因此, 要到一个合适的解决方案, 在保持人和环境尽可能健康的同时, 把足够的食物放在餐
桌上, 还有很长的路要走。
Ⅰ. 阅读理解
A
The organic foods have gained a lot of popularity as they are being considered as healthier and tastier. A fair number of people advocate a large-scale shift to organic farming from conventional agriculture. But this might not seem well-founded.
Since the mid-19th century, conventional industrial agriculture has become incredibly efficient on a simple land to food basis. Conventional farming gets more and more crop per square foot of land, which can mean less wilderness needs to be transformed to farmland.
To make farming more efficient, conventional agriculture uses a significant amount of synthetic fertiliser(合成肥料)each year, and all that nitrogen(氮)enables much faster plant gr
owth. However, the cost is paid in vast polluted dead zones at the months of many of the world’s rivers, because much of the nitrogen ends up running off the soil and into the oceans. This also makes conventional farming one of the major threats to the environment.
To weaken the environmental impact of agriculture, improve soil quality as well as produce healthier foods, some farmers have turned to organic farming. Environmentalists have also welcomed organic food as better for the planet than the food produced by agricultural corporations. Organic practices—refusing artificial fertilizers and chemical pesticides—are considered far more sustainable. Sales of organic food rose 7. 7% in 2010, up to $26. 7 billion—and people are making those purchases for their moral senses as much as their tongues.
Yet a new meta-analysis in Nature does the math and comes to a hard conclusion: organic farming produces 25% fewer crops on average than conventional agriculture.
In the Nature analysis, scientists performed an analysis of 66 studies comparing conventional and organic methods across 34 different crop species, from fruits to grains. T
hey found that organic farming delivered a lower output for every crop type, though the difference varied widely. For crops like fruit trees, organic trailed(落后于)conventional agriculture by just 5%. Yet for major grain crops and vegetables—all of which provide the world’s main calories—conventional agriculture outperformed organics by more than 25%.
What that means is that while organic farming may be more sustainable than conventional agriculture, there are trade-offs(此消彼长)with each. So an ideal global agriculture system may borrow the best from both systems rather than upholding merely organic or conventional practices.
1. What do we know about conventional farming?
A. It produces more crops with fewer fertilisers.
B. It achieves efficiency at a huge cost to the environment.
高中英语文章C. If offers a long-term solution to global demand for food.
D. It performs far better for each crop type than organic farming.
【解析】选B。 推理判断题。根据第二段Since the mid-19th century, conventional industrial agriculture has become incredibly efficient on a simple land to food basis. 和第三段最后一句This also makes conventional farming one of the major threats to the environment. 可知, 传统农业以牺牲环境的巨大代价来实现生产效率。
发布评论