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高级综合英语教程 1 (张维友)课后答案Unit 1I. Background to Text 1The Natural Trust: A UK charity (i.e. a non-profit organization) founded in 1895 with the full name of Places of Historical Interest and Natural Beauty. The Trust owns historic buildings, gardens and land, which it opens to the public.Text I is taken from the Trust’s own magazine, issued to its members. The writers are 17-18-year-old students.Environment:The combination of external conditions that surround and influencea living organism, including light, temperature, availability of food and water,climatic conditions, geographical area, pollution b
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