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ne give patients medicine teach them about performing eye operations need money from people in rich countries share knowledge cases grateful educaion blood proud 二. Presentation 1. Revise the passage in book ① How many people does blindness affect by blindness affect around the world? where are they are mostly from ? ② Why do many sick people can be cured or prevented? ③ Why do ORBIS doctors prefer to work on a plane ④ How many operations did Dr Ma perform during his last visit ⑤ How do people feel about their work? ⑥ What does ORBIS need to carry on with their work ?what can we do for them the text to the flow chart , some students retell the text in Page86. Blind