雅思剑11发布后很多同学都纷纷购买，只想第一时间知道题目趋势...到底雅思考试是简单了还是变难了暂且不说，雅思剑11的题目还是需要弄懂了。更新的书才更贴近考试。下面雅思小编为同学们分享雅思剑11中的阅读精读，练习写作的同学请参考句式。
　　Crop-growing skyscrapers摩天大楼
　　第一段原文
　　By the year 2050, nearly 80% of the Earth’s population will live in urban centers. Applying the most conservative estimates to current demographic人口统计学的 trends, the man population will increase by about three billion people by then. An estimated 10 hectares of new land (about 20% larger than Brazil) will be needed to grow enough food to feed them, if traditional farming methods continue as they are practiced today. At present, throughout the world, over 80% of the land that is suitable for raising crops is in use. historically, some 15% of that has been laid wasted by poor management practices. what can be done to ensure enough food for the world’s population to live on?
　　时间的表达方式：
　　by the year 2050
　　by then
　　at present
　　数字的修饰方式：
　　nearly 80%
　　increase by about 3 billion
　　about 20% larger than
　　over 80%
　　some 15%
　　大作文常用词组：
　　live in urban centers
　　apply sth to sth
　　the most conservative estimates 保守估计
　　grow food
　　feed people
　　traditional farming methods传统耕种方法
　　be suitable for
　　raise crops
　　be in use 使用中
　　poor management不当的管理
　　同意替换：
　　the Earth’s population/ the man population/ the world’s population
　　句子仿写：
　　if traditional farming methods continue as they are practiced today
　　if traditional mining methods continue as they are practiced today, at least 5,000 people will be killed according to a conservative estimate.
　　重点讲解单词：
　　estimate
　　n. 估计、估价 a rough estimate粗略估计
　　v. 估价、估算 the satellite will cost an estimated 400 million pounds.这颗卫星估计要耗资四亿英镑。