Unit 1 Food for thought 单元拓展-【正禾一本通】2023-2024学年新教材高一英语必修第二册同步课堂高效讲义教师用书（外研版2019）

一、单元主题升华阅读 Organic food (有机食品) is very popular.It is also expensive.Some organic food costs twice as much as non­organic food.Some parents and pet owners pay up to 200 percent more for organic food while some people think organic food is a waste of money. There is one main difference between organic and non­organic food.Organic farms do not use agricultural chemicals, such as pesticides (杀虫剂).This makes sure that the products are natural. Some people think“organic”means“locally grown”．At the beginning, this was true.Over time organic farming became more difficult.The demand for organic food grew larger than the supply.Small companies had to sell out to large companies.There weren't enough organic materials.This made it difficult for many organic companies to stay in business.Today, many large companies have an organic line of products. Is organic food more nutritious (有营养的)? This is part of the debate.Many farmers and consumers (消费者) believe it is.They think agricultural chemicals cause health problems, such as cancer.Many health experts disagree.Few studies prove that organic food prevents health problems.Health experts worry more about bacteria (细菌).These can come into contact with organic and non­organic food.Doctors recommend washing produce very carefully. Most people agree that naturally grown food tastes better.Is tastier food worth the extra money? This is a matter of opinion.Whether it is healthier or not may require more research.However, organic consumers argue it is better to be safe than sorry. 语篇解读：本文是一篇议论文。文章主要讲述了人们在有机食物的价格、有机食物是否更有营养等方面持有不同的观点。 1．What is probably the major concern of organic food consumers? A．Price. B．Safety. C．Freshness. D．Variety. 解析：选B。推理判断题。根据文章最后一段中“However, organic consumers argue it is better to be safe than sorry.”可知，有机食品消费者们认为安全总比后悔好，所以愿意为了安全花更多的钱。 2．What is the doctors' suggestion? A．Grow your own food. B．Reduce the use of pesticides. C．Make sure the food is clean. D．Buy large companies' products. 解析：选C。细节理解题。根据第四