英语 二年级 下 人教版PDF电子书下载

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Exercises for Unit 11　Scientific achievements 1

Exercises for Unit 12　Fact and fantasy 11

Exercises for Unit 13　The water planet 21

Exercises for Unit 14　Freedom fighters 31

Exercises for Unit 15　Destinations 41

Mid-term revision exercises 51

Exercises for Unit 16　The United States of America 61

Exercises for Unit 17　Disabilities 70

Exercises for Unit 18　Inventions 80

Exercises for Unit 19　The Merchant of Venice 90

Exercises for Unit 20　Archaeology 100

Terminal revision exercises 110

Tapescript and key 119

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