Unit1 A teacher

Lesson 1

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Unit2 Travelling in Xinjiang

Lesson 5

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Lesson 7

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Unit3 The Great Lakes

Lesson 9

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Unit4 The dragons of Komodo

Lesson 13

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Lesson 15

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Unit5 Mainly revision

Lesson 17

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Unit6 It'sa mystery

Lesson21

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Unit7 Countries and languages

Lesson25

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Unit 8 Thanksgiving

Lesson29

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Unit9 The skies of two cities

Lesson 33

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Unit 10 Mainly revision

Lesson 37

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Unit 11 The world

Lesson41

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Unit 12 Tom Sawyer

Lesson45

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Unit 13 Charity

Lesson49

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Unit 14 Collecting

Lesson 53

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Unit15 Murder on the train

Lesson 57

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Unit 16 Mainly revision

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Lesson 63

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