Unit 1 Living with technology课件10（牛津高中选修7）.ppt

In this lesson, you will find out the main points and supporting details in an article find out the writer’s attitude John Anderson February 24, 2011 Unit 1 Living with technologyProject Making a list of pros and consAre mobile phones safe? John Anderson February 24, 2011 Reading for the main idea What evidence has the writer found? (Are mobile phones safe?) (Find out the main points.) How to solve the problem, what is the writer’s attitude? (Or which attitude does the writer agree with?) The writer might be worried about the use of mobile phones because he says, ‘Scientists have recently provided us with some worrying findings.’ The evidence and conclusion Evidence Using a mobile phone doubles the risk of developing brain cancer, a disease which is usually terminal. (lines 7 – 9) Digital mobile phones are an actual danger. (lines 30 – 31) Conclusion There is no definite scientific evidence available now about the effects of mobile phones on people’s health. Reading for supporting details Main points Supporting details Using a mobile phone doubles the risk of developing brain cancer. Digital mobile phones are an actual danger. The reasons why there is no definite scientific evidence available now about the effects of mobile phones on people’s health. Using a mobile phone doubles the risk of developing brain cancer. The report is based on the findings of research that was carried out in Sweden, comparing 1,617 patients found to have brain tumours between 1997 and 2003 with the same number of healthy people. Digital mobile phones are an actual danger. The study, conducted with 200 mice, of which half were exposed to radiation while the other half did not receive any radiation, shows that the first half were found to have more than twice the cancer rate of the second half after eighteen months. The reasons why there is no definite scientific evidence available now about the effects of mobile phones on people’s health. Enormous profit from the