目录 Unit 1 People and relationships 1 Unit 2 Health 5 Unit 3 Education 9 Unit 4 Adventure 13 Unit 5 Gadgets 17 Unit 6 Cities 21 Unit 7 The art of persuasion 25 Unit 8 Getting involved 29 Unit 9 Global warming 33 Unit 10 Revision 1 37 Unit 11 Words for describing graphs and diagrams 41 Unit 12 Words for describing change 45 Unit 13 Words expressing similarity and difference 49 Unit 14 Words describing cause and effect 53 Unit 15 Signposting expressions for writing 57 Unit 16 Adverbs 61 Unit 17 Words for problems and solutions 65 Unit 18 Words for talking about ideas 69 Unit 19 Emphasis and understatement 73 Unit 20 Revision 2 77 Audio script 81 Answer key 99 Collocations 106
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