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Organic food: Why? 1. Europeis now the biggest market for organic food in the world, expanding by 25percent a year over the past 10 years. So what is the attraction of organicfood for some people? The really important. thing is that organic sounds more"natural". Eating organic is a way of defining oneself as natural,good, caring, different from the junk-food-eating masses. 2. Unlike conventionalfarming, the organic approach means farming with natural, rather than man-made,fertilisers and pesticides. Techniques such as crop rotation(轮种)improve soil qualityand help organic farmers compensate for the absence of man-made chemicals. As amethod of food produc- tion, organic is, however, inefficient in its use oflabour and land; there are severe limits to how much food can be produced.Also, the environmental benefits of not using artificial fertilisers are tinycom- pared with the amount of carbon dioxide emitted(排放)by transportingfood. 3. Organic farming is oftenclaimed to be safer than conventional farming. Yet studies into organic farmingworldwide continue to reject this claim. An extensive review by the UK FoodStandards Agen- cy found that there was no statistically significant differencebetween organic and conventional crops. Even where results indicated there wasevidence of a difference, the reviewers found no sign that these differenceswould have any noticeable effect on health. 4. The simplistic claimthat organic food is more nutritious than conventional food was always likelyto be misleading. Food is a natural product, and the health value of differentfoods will vary for a number of reasons, including freshness, the way the foodis cooked, the type of soil it is grown in, the amount of sunlight and raincrops have received, and so on. Likewise, the flavour of a carrot has less todo with whether it was fertilised with manure(粪便) or something out of a plastic sack than with thevariety of carrot and how long ago it was dug up. 5. The notion that organic food is saferthan "normal" food is also contradicted by the fact that many of ourmost common food are full of natural toxins(毒素). As one research expert says : "People thinkthat the more natural something is, the better it is for them. That is simplynot the case. In fact, it is the opposite that is true: the closer a plant isto its&39;natural state, the more likely it is that will poison you. Naturally,many plants do not want to be eaten, so we have spent 10,000 years developingagriculture and breeding out harmful traits from, crops. " Paragraph l Paragraph 2 Paragraph 3 Paragraph 4 Techniques of organic farming help There is no convincing evidence to The weather conditions during the growth of crops The closer a plant is to its natural state, the less suitable it is to
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【简答题】起源于大河文明的国家是()。
【单选题】首先提出炭药止血理论的历史文献为
A.
黄帝内经
B.
本草蒙荃
C.
雷公炮炙论
D.
十药神书
【单选题】以为,认为 (v.)
A.
resume
B.
assume
C.
reflect
D.
assure
【单选题】地高辛最严重的不良反应是
A.
神经系统反应
B.
心脏毒性
C.
骨髓抑制
D.
胃肠道反应
E.
过敏反应
【判断题】财政政策的自动稳定作用是指该政策的部分工具能够防止经济出现上下起伏波动。
A.
正确
B.
错误
【多选题】塔尔寺是青海名胜,( )被称为塔尔寺艺术“三绝”。
A.
酥油花
B.
堆绣
C.
壁画
D.
彩绘泥塑
E.
灵塔
【单选题】地高辛最严重的不良反应是 ( )
A.
心脏毒性反应
B.
胃肠道反应
C.
视觉障碍
D.
神经系统症状
E.
过敏反应
【单选题】( )是指全面分析出你的目标用户群里每个用户的具体信息和行为特征。
A.
用户素描
B.
用户速写
C.
用户形象
D.
用户画像
【简答题】以为,认为v.
【单选题】地高辛最严重的不良反应是
A.
神经系统反应
B.
心脏毒性
C.
骨髓抑制
D.
胃肠道反应