Unit 2 Understanding ideas 课件-2022-2023学年高中英语外研版（2019）必修第三册.pptx

The well that changed the world What do you know about Africa? What do you know about Africa? How much do you know about African life? Look at the map and talk about water problems in Africa.People in Africa will face severe water problems.How to solve the problems? Tick the solutions that you think are most effective to supply Africa with fresh water.collect and purify rainwaterfund water projectsbuild wells and pumpsrecycle waste waterset up facilities to purify waterdevelop new water conservation technologies净化抽水机,泵设备,设施节约 Read and finish the questions 1. What was the problem in some developing African countries? A. The countries were too dry to have enough money. B. People didn’t want to fetch water. C. The water was too far away from and it was dirty. D. People used too much water and polluted it. 2. How much does it cost to build a well?A．70 dollars B．2, 000 dollars C．800, 000 dollars D．1, 300 dollars 3. How did he earn money at first?A．By selling all his toys to others.B．By cleaning windows in the classroom.C．By doing some housework.D．By asking his parents for help. 4. How did the children welcome Ryan?A. By inviting him to their house for a super meal warmly.B. By singing, dancing and offering him food and gifts.C. By giving joyful and a polite handshake to him.D. By saving money to prepare previous gifts for him. 5. Ryan set up a foundation to ________．A．inspire people to give him their supportB．encourage more people to helpC．build more wellsD．make his dream a reality 6. What’s the main idea of the passage?A. A Canadian boy collected enough money to dig a well.B. A Canadian boy helped dig a well for people in Uganda.C. A Canadian boy tried his best to make his dream come true.D. A Canadian boy made the world different because of his efforts. Choose the best explanation of the title and give your reasons.1. The well built by Ryan solved the problem of worldwide water shortage.2. The more wells you dig, the better the world will be.3. The