题目

It is the world's fourth-most-important food crop, after maize, wheat and rice. It provides more calories, more quickly, using less land and in a wider range of climates than any other plant. It is, of course, the potato.The United Nations has hoped that greater awareness of the merits of potatoes will contribute to the achievement of its Millennium Development Goals, by helping to reduce poverty and promote economic development.The potato promoted economic development by supporting the Industrial Revolution in England in the 19th century. It provided a cheap source of calories上一问下一问(单选题,4分)Paragraph 3 mainly describes().A why the potato became popular in the north of EnglandB why the potato was important in England's population growthC how the potato contributed to England's industrial developmentD how the potato helped improve England's working conditions

It is the world's fourth-most-important food crop, after maize, wheat and rice. It provides more calories, more quickly, using less land and in a wider range of climates than any other plant. It is, of course, the potato. The United Nations has hoped that greater awareness of the merits of potatoes will contribute to the achievement of its Millennium Development Goals, by helping to reduce poverty and promote economic development. The potato promoted economic development by supporting the Industrial Revolution in England in the 19th century. It provided a cheap source of calories 上一问 下一问 (单选题,4分)Paragraph 3 mainly describes(). A why the potato became popular in the north of England B why the potato was important in England's population growth C how the potato contributed to England's industrial development D how the potato helped improve England's working conditions

题目解答

答案

我们来一步一步分析这道题目。 题目要求：选择第三段（Paragraph 3）**主要描述**的内容。 先来看第三段原文： > The potato promoted economic development by supporting the Industrial Revolution in England in the 19th century. It provided a cheap source of calories. 中文翻译： > 土豆通过支持19世纪英国的工业革命促进了经济发展。它提供了一种廉价的热量来源。 接下来我们逐句分析： - 第一句话：“The potato promoted economic development by supporting the Industrial Revolution in England in the 19th century.” 意思是：土豆通过支持19世纪英国的工业革命，促进了经济发展。 这句话明确指出了土豆与“工业革命”和“经济发展”之间的关系。 - 第二句话：“It provided a cheap source of calories.” 意思是：它提供了廉价的热量来源。 这是对上一句的补充说明——为什么土豆能支持工业革命？因为它便宜且能提供充足能量，养活了大量工人。 因此，整段的核心意思是：**土豆如何通过提供廉价热量，支持了工业革命，从而促进了经济发展**。 现在我们来看选项： A. why the potato became popular in the north of England （为什么土豆在英格兰北部流行） → 原文没有提到“英格兰北部”，也没有讨论“流行的原因”，所以排除。 B. why the potato was important in England's population growth （为什么土豆在英国人口增长中很重要） → 虽然土豆可能促进了人口增长，但这段话没有提到“人口增长”，重点是“工业革命”和“经济发展”，所以不是主旨，排除。 C. how the potato contributed to England's industrial development （土豆如何促进英国的工业发展） → 完全符合段落内容！段落明确说“potato promoted economic development by supporting the Industrial Revolution”，即土豆通过支持工业革命促进经济发展，这正是“contribute to industrial development”的意思。这个选项准确概括了段落主旨。 D. how the potato helped improve England's working conditions （土豆如何帮助改善英国的工作条件） → 原文没有提到“工作条件”的改善，比如工资、工时、安全等，所以无中生有，排除。 **正确答案是：C** --- **答案：\boxed{C}**

解析

本题考查对段落主旨的把握。核心思路是通过定位关键句，明确段落核心内容，再与选项对比。破题关键在于抓住段落中反复出现的关键词（如“Industrial Revolution”“economic development”），并排除与原文无关或过度推断的选项。

关键句分析：

  1. 第一句明确指出“土豆通过支持工业革命促进经济发展”（The potato promoted economic development by supporting the Industrial Revolution）。
  2. 第二句补充说明原因：“土豆提供廉价热量”（provided a cheap source of calories），间接支持工业革命（养活工人）。

选项对比：

  • A（土豆在英格兰北部流行的原因）：原文未提及“北部”或“流行”，排除。
  • B（土豆对人口增长的作用）：段落未涉及“人口增长”，排除。
  • C（土豆如何促进工业发展）：与关键句直接对应，正确。
  • D（改善工作条件）：原文未提“工作条件”，排除。