24年7月10日真题

　　Chinampas

　　[Paragraph 2] The most intensive form of irrigation agriculture was the chinampas. Chinampas were highly productive plots of land claimed from the shallow beds of freshwater lakes. These long, rectangular fields ranged in size from two to four meters wide and twenty to forty meters long and rose about one meter above water level. Misnamed “floating gardens,” chinampas are still cultivated in and around Xochimilco and neighboring cities and are a popular tourist attraction. A chinampa was constructed by piling alternating layers of vegetation and mud in shallow areas of lakes. The parcel was held secure at first by posts, and later, when the plot was established, by the roots of willow trees planted at the corners and along the sides. The entire plot thus served as a deep, humus-filled foundation for continuous cultivation. It was bordered by canals and walkways, and dipping into an adjacent canal provided irrigation. Although nutrients constantly replenished the soil in this manner, other fertilizers, crop rotation, and multiple cropping were probably used to increase production.

　　3. According to paragraph 2, all of the following were characteristics of the Aztecs’ chinampas EXCEPT

　　A. They were long and narrow

　　B. Their soil was held in place in part by tree roots.

　　C. Their layers of vegetation and mud had to be replaced every year.

　　D. They were irrigated with water from canals that ran along their sides.

　　思路解析

　　题目类型：细节题(非事实题)

　　正确选项：C

　　干扰选项：A

　　解题难点：学生易质疑A选项的narrow。

　　根据原文单下划线和双下划线句子大部分学生可以较为容易地排除BC两选项，最多的心力花在AC的甄别上面。有学生会认为根据原文波浪线的表达from two to four meters wide, “they are not narrow at all(主观看法)”。此时若急于给出答案不再对C进行验证则本题错选A;若能够继续耐心验证C选项，则获得一次纠正错误的机会，因为C的核心replace原文中完全没讲。那么在“不太认同A”和“完全不认同C”之间，严谨的学生还是能够得出C这个正确的选项。

　　能力提升方向：

　　原文与选项的匹配有时并不能严丝合缝，此时“相比较而言”就格外重要!四选项一定要全部走过一遍!给自己牢固的safety net， 这是高分的保障!

　　推荐解题思路：

　　解读题目信息要点：找寻Ac 的特征(排除);

　　解读选项要点：

　　A: 长且窄

　　B: 用树根固土

　　C: 植被和泥土要每年换

　　D: 用旁边水渠的水灌溉

　　回原文阅读相关内容，句要点：灌溉农业C地最密集;(判断为背景信息，还未到选项相关内容)

　　第二句要点：C非常多产;(仍未到相关内容)

　　第三句要点：这些长方形田地宽2-4米，长20-40米，高约一米;(意识到涉及到A选项，长和窄的描述匹配成功，排除A);

　　第四句要点：C地仍然在被耕种，已成为旅游景点(与题目无关)

　　第五句要点：C田地是在浅湖中堆叠植被和泥造出的(与C选项密切相关，但还未看到至关重要的“每年一换”)

　　第六句要点：固定方式：先posts，后tree roots;(本句证明了B选项的正确性，排除B)

　　第七句要点：整块田地接下来可持续使用;(与四选项皆无关)

　　第八句要点：块状田四周是水渠和步行通道，且毗邻的水渠提供灌溉(证明了D选项的正确性，排除D，较为确定应该选C，因为没提到每年一换，但稳妥起见最后一句仍要阅读)

　　第九句要点：也会同时采用其他方式增产(确定C选项的“每年一换”完全未提到，对已选答案100%确定)

　　选C，结束战斗!

　新航道-用心用情用力做教育!

　　>>点击在线咨询<<

　400-892-8866