This speaker argues that farmers who invested in organic farming equipment should resume synthetic farming because it is financially unwise to continue organic farming. The speaker cites studies showing that farmers who switched to organic farming last year had tower crop yields. Based on these studies, the speaker concludes that the relatively inexpensive investment in organic farming equipment cannot justify continuing to farm organically. The speaker also claims that continuing to farm organically is financially unwise because it is motivated by environmental, not economic, concerns. The argument suffers from three problems.
One problem with this reasoning involves the vague comparative claim that farmers who switched to organic farming fast year had lower crop yields. We are not informed whether the survey compared last years organic crop yields with yields from previous years or with those from synthetic farms. Moreover, the author provides no evidence about how the survey was conducted. Lacking more information about the survey, we cannot accept the speakers conclusion.
Secondly, the speaker assumes that the low crop yields for first-time organic farmers last year are representative of crop yields for organic farmers overall. However, more experienced organic farmers might have had much better crop yields last year. Also, the first-time organic farmers might improve their own crop yields in future years. Moreover, last years yield may have been unusually low due to poor weather or other factors, and thus not indicative of future yields.
Finally, in asserting that organic farming is financially unwise because it is motivated by environmental instead of economic concerns, the speaker unfairly assumes that a practice cannot be both environmentally and economically beneficial. It is possible that, in the long run, practices that help protect the environment will also result in greater economic benefits. For instance, organic farming methods may better protect soil from depletion of the elements that contribute to healthy crops, providing an economic benefit in the long run.
In conclusion, the speakers argument is poorly supported and is short-sighted. To better evaluate the argument, we would need more information about the how the survey was conducted, especially about the comparison the survey makes. To strengthen the argument, the speaker must present evidence that last years crop yields from first-time organic farmers are representative of yields among organic farms in general. The author must also provide evidence that environmentally sound practices cannot be economically beneficial as well.
30.
In this argument prudent investors are advised to stop investing in hotels and invest instead in hospitals and nursing homes. The author cites two related trends―an aging population and a decline in hotel occupancy―as grounds for this advice. To illustrate these trends, the author refers to another region of the country, where 20 percent of the population is over 65 years old and where occupancy rates in resort hotels have declined significantly during the past six months. This argument is unconvincing in a couple of important respects.
In the first place, the author provides no evidence to support the claim that the population as a whole is aging and thatthe hotel occupancy rate in general is declining. The example cited, while suggestive of these trends, is insufficient to warrant their truth because there is no reason to believe that data drawn from this unnamed region is representative of the entire country. For example, if the region from which the data was gathered was Florida, it would clearly be unrepresentative. The reason for this is obvious. Florida is populated by a disproportionate number of retired people over 65 years old and is a very popular vacation destination during the winter months. Moreover, resort hotel occupancy in Florida typically declines significantly during the summer months.
In the second place, the author has provided no evidence to support the claim that the decline in hotel occupancy is related to the aging of the population. The author appears to believe that the decrease in occupancy rates at resort hotels is somehow caused by the increase in the number of people over age 65. However, the example cited by the author establishes only that these two trends are correlated; it does not establish that the decline in hotel occupancy is due to an increase in the number of people over the age of 65.
In conclusion, the authors investment advice is not based on sound reasoning. To strengthen the conclusion, the author must show that the trends were not restricted to a particular region of the country. The author must also show that the cause of the decline in hotel occupancy is the increase in the number of people over 65.
跟小小孩说英文:Snacks 点心
儿童英语礼貌用语
跟小小孩说英文:Eating too much 吃太多肚子痛
少儿英语口语故事:小猫
跟小小孩说英文:Splitting a piece of chocolate 分巧克力
少儿英语口语故事:夏日来到
跟小小孩说英文:What to wear? 穿什么衣服
跟小小孩说英文:Buying clothes 买衣服
少儿英语口语故事:白云
少儿英语口语故事:晴朗的天
跟小小孩说英文:Getting dressed 整理衣衫
英蕊乐园游历记全集:Story 04 这个男孩是谁
跟小小孩说英文:Having night snacks 吃宵夜
跟小小孩说英文:Shopping in the Market 逛市场
少儿英语口语故事:大象
跟小小孩说英文:Going out on a rainy day 下雨天出门
跟小小孩说英文:Eating ice cream 吃冰淇淋
跟小小孩说英文:In the supermarket 在超市(二)
跟小小孩说英文:Eating hot pot 吃火锅
跟小小孩说英文:In the supermarket 在超市(三)
英蕊乐园游历记全集:Story 06 我想要牛奶
英蕊乐园游历记全集:Story 05 这是什么
学前英语口语学习教程汇总
最新幼儿园英语礼貌用语
英蕊乐园游历记全集:Story 08 我喜欢橘子
跟小小孩说英文:Having cotton candy 吃棉花糖
英蕊乐园游历记全集:Story 03 我爱我的家
少儿英语口语故事精选
跟小小孩说英文:Buying another bottle 再买一瓶
跟小小孩说英文:Having snacks 吃点心
不限 |
英语教案 |
英语课件 |
英语试题 |
不限 |
不限 |
上册 |
下册 |
不限 |