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课件网) Unit 12 UNIT 12 INNOVATION Simple Inventions That Changed the World To read and understand the history of three important inventions To read for detail and answer questions To answer critical thinking questions Read the heading of the text and brainstorm simple inventions that changed the world. Thomas Alva Edison Wright Brothers electric light airplane Alexander Graham Bell Karl Friedrich Benz Hamilton Smith telephone car washing machine Look at the pictures and discuss what each invention is used for and in what way was life different before these inventions. When and where were the clock, the refrigerator and the elevator invented How have these inventions changed our lives Inventions When Where Inventors How to change our lives the clock in the 16th and 17th centuries Europe European inventors almost every part of our day-to-day lives is governed by time our ability to measure it accurately Inventions When Where Inventors How to change our lives the refrigerator 1805 Oliver Evans it’s a common object in most homes and people would find it difficult to imagine living without it Inventions When Where Inventors How to change our lives the elevator 1880 Werner von Siemens Elevators have changed not only our lives by making it possible to live in bigger and taller buildings, but also the city skylines. Germany 1. To illustrate this, let’s have a look at three simple inventions: … illustrate vt. to make the meaning of something clearer by giving examples 说明, 阐明 to put pictures in a book, article etc 给(书籍、文章)加插图 e.g. Let me give an example to illustrate the point. 让我举个例子来说明这一点。 Over a hundred diagrams, tables and pictures illustrate the book. 这本书有一百多幅图解﹑表格和图片。 regulate vt. to control an activity or process, especially by rules 控制, 管理 to make a machine or your body work at a particular speed, temperature etc 调整, 校准, 调节 2. One regulates almost everything we do, … e.g. regulate market order 规范市场秩序 People sweat to regulate their body heat. 人出汗以调节体温。 3. European inventors developed the first accurate mechanical clocks in the 16th and 17th centuries. accurate adj. correct and true in every detail 正确的﹐准确的 e.g. The evidence she gave to the court was not exactly accurate. 她向法庭提供的证词并不完全准确。 accurately adv. 精确地; 准确地 accuracy n. 精确(程度), 准确(性) 4. Therefore, preserving food has always been an important consideration for people. preserve vt. to store food for a long time after treating it so that it will not decay 腌制, 保存(食物) to save something or someone from being harmed or destroyed 维护, 保护 preserve sth. from sth. to make something continue without changing 保持, 维持 n. a substance made from boiling fruit or vegetables with sugar, salt, or vinegar 果酱; 腌菜 e.g. black olives preserved in brine 盐水黑橄榄 We must encourage the planting of new trees and preserve our existing woodlands. ... ...
