Unit2 Understanding ideas 课件-2022-2023学年高中英语外研版（2019）必修第三册

The Well that Changed the World Look at the map and talk about water problems in Africa. Freshwater shortage Freshwater stress Freshwater problems in Africa by 2025 What is the map about? What do different colors stand for? Globally, renewable internal freshwater resource per capita was around 6000 m³ in 2014. What’s the video mainly talking about? This 13-year-old African girl has to spend 8 hours a day to fetch water. What’ s worse, this is the normal life for the people around her. 2.What should we do to solve the problem? 1.What’s the video mainly talking about? Now tick the solutions that you think are most effective to supply Africa with fresh water. collect and purify rainwater fund (provide money for sth) water projects build wells and pumps recycle (use sth again) waste water set up facilities to purify water develop new water conservation (protection) technologies Read the passage and find out what Ryan did to help solve the problem of water shortage in Africa. The Well that Changed the World Read the passage quickly, and find out: Who is Ryan? Why can the well change the world? Choose the best explanation of the title and give your reasons. The well built by Ryan solved the problem of worldwide water shortage. The more wells you dig, the better the world will be. The well built by Ryan encouraged more people to help make the world a better place. Read the passage carefully and answer the following questions. Thinking: Why does the author use three interrogative questions (疑问句) at the end of first paragraph? to arouse the readers’ interest to lead to the following paragraphs Para.1 Thinking: How did Ryan raise money? Para.2 work for others 1.How did Ryan raise money? work for others ask others to donate make his story go public 2.What’s the function of the last sentence in Paragraph 3? It is a transitional sentence. Para.3 Thinking: Thinking: 1. What kind of warm weclome did Ryan get? sing and dance offer him food and gifts 2