Unit Two Before Reading Global Reading Detailed Reading After Reading The value of Life ome Zooming In: An Integrated English Course- Electronic Teaching Portfolio What can people with sight problems see Word Web Being blind does not always mean living in total darkness. Forty Read and Think nine percent of the blind people and eighty percent of the partially sighted people can recognize a friend at one arm's length Think and Speak Other people will be affected by eye diseases in different ways: some will have no central vision or no vision to the sides; others may see Helen Keller a patchwork of blank and defined areas; or everything may be seen as a vague blur Helen Keller's ● Glaucoma(青光眼) can result in tunnel vision, where all side visio Chronology is lost and only central vision remains. Dia betic(糖尿病) retinopathy(视网膜眼疾) can cause blurred and Helen Keller's patchy vision. Miracle Macular degeneration can lead to the loss of central vision whilst side vision remains Helen and Anne It should be remembered that people are affected by eye diseases in different ways. You should not assume that you know what someone can see simply because you know what eye diseases they have. 新世纪大学英语系列教材综合教程电子教②think2 Word Web Think and Speak Read and Think Helen Keller Helen Keller’s Miracle Helen and Anne What can people with sight problems see? Being blind does not always mean living in total darkness. Forty￾nine percent of the blind people and eighty percent of the partially sighted people can recognize a friend at one arm’s length. Other people will be affected by eye diseases in different ways: some will have no central vision or no vision to the sides; others may see a patchwork of blank and defined areas; or everything may be seen as a vague blur. ⚫ Glaucoma (青光眼) can result in tunnel vision, where all side vision is lost and only central vision remains. Diabetic (糖尿病) retinopathy (视网膜眼疾) can cause blurred and patchy vision. Macular degeneration can lead to the loss of central vision whilst side vision remains. ⚫ ⚫ It should be remembered that people are affected by eye diseases in different ways. You should not assume that you know what someone can see simply because you know what eye diseases they have. Helen Keller’s Chronology