高中选择性必修第四册（外研版）

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Unit 1 - Starting out

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Unit 1 - Understanding ideas

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Unit 1 - Using language

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Unit 1 - Choices and decisions

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Unit 1 - Developing ideas

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Unit 1 - Writing an application letter

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Unit 1 - Presenting ideas

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Unit 1 - Reflection

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Unit 1 - Project

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Unit 2 - Starting out

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Unit 2 - Understanding ideas

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Unit 2 - Using language

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Unit 2 - Proverbs about life

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Unit 2 - Did You Know

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Unit 2 - Developing ideas

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Unit 2 - Writing a summary

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Unit 2 - Presenting ideas

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Unit 2 - Reflection

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Unit 2 - Project

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Unit 3 - Starting out

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Unit 3 - Understanding ideas

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Unit 3 - Using language

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Unit 3 - Cultural exchange

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Unit 3 - Developing ideas

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Unit 3 - Recommending cultural highlights

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Unit 3 - Presenting ideas

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Unit 3 - Reflection

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Unit 3 - Project

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Unit 4 - Starting out

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Unit 4 - Understanding ideas

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Unit 4 - Using language

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Unit 4 - Social credit

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Unit 4 - Finance management tips for freshmen

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Unit 4 - Developing ideas

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Unit 4 - Writing an essay about non-cash payments

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Unit 4 - Presenting ideas

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Unit 4 - Reflection

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Unit 4 - Project

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Unit 5 - Starting out

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Unit 5 - Understanding ideas

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Unit 5 - Using language

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Unit 5 - Facing the unknown

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Unit 5 - Developing ideas

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Unit 5 - Writing about the unexplained

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Unit 5 - Presenting ideas

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Unit 5 - Reflection

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Unit 5 - Project

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Unit 6 - Starting out

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Unit 6 - Understanding ideas

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Unit 6 - Using language

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Unit 6 - Life in space

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Unit 6 - Developing ideas

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Unit 6 - Writing a journal entry about living in space

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Unit 6 - Presenting ideas

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Unit 6 - Reflection

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Unit 6 - Project