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Unit 1课时作业：Lesson 1 How's the Weather？_doc.doc
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Unit 1课时作业：Lesson 2 It's Getting Warmer!_doc.doc
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Unit 1课时作业：Lesson 3 The Sun Is Rising_doc.doc
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Unit 1课时作业：Lesson 4 The Spring City_doc.doc
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Unit 1课时作业：Lesson 5 Babysitting on a Spring.doc
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Unit 1课时作业：Lesson 6 Stories about Spring_doc.doc
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Unit 2课时作业：Lesson 10 Make Your Garden Grow!_doc.doc
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Unit 2课时作业：Lesson 11 Amazing Plants_doc.doc
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Unit 2课时作业：Lesson 12 Danny's Plant_doc.doc
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Unit 2课时作业：Lesson 7 Planting Trees_doc.doc
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Unit 2课时作业：Lesson 8 Why Are Plants Important_doc.doc
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Unit 2课时作业：Lesson 9 Gardening with Mary_doc.doc
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Unit 3课时作业：Lesson 13 Danny's Big Scare_doc.doc
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Unit 3课时作业：Lesson 14 Amazing Animals_doc.doc
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Unit 3课时作业：Lesson 15 The Zoo Is Open_doc.doc
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Unit 3课时作业：Lesson 16 The Bear Escaped!_doc.doc
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Unit 3课时作业：Lesson 17 Save the Tigers_doc.doc
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Unit 3课时作业：Lesson 18 Friendship Between.doc
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Unit 4课时作业：Lesson 19 How Do You Use the.doc
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Unit 4课时作业：Lesson 20 A Computer Helps!_doc.doc
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Unit 4课时作业：Lesson 21 Books or Computers_doc.doc
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Unit 4课时作业：Lesson 22 Travel on the Internet_doc.doc
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Unit 4课时作业：Lesson 23 The Internet — Good or.doc
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Unit 4课时作业：Lesson 24 An E-mail to Grandpa_doc.doc
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Unit 5课时作业：Lesson 25 Raising Money_doc.doc
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Unit 5课时作业：Lesson 26 Cookies_ Please!_doc.doc
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Unit 5课时作业：Lesson 27 Business English_doc.doc
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Unit 5课时作业：Lesson 28 Ms_ Liu's Great Idea_doc.doc
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Unit 5课时作业：Lesson 29 How to Push a Product_doc.doc
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Unit 5课时作业：Lesson 30 A Cookie Sale_doc.doc
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Unit 6课时作业：Lesson 31 Don't Fall_ Danny！_doc.doc
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Unit 6课时作业：Lesson 32 My Favourite Record_doc.doc
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Unit 6课时作业：Lesson 33 2 800 Years of Sports_doc.doc
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Unit 6课时作业：Lesson 34 Modern Olympics_doc.doc
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Unit 6课时作业：Lesson 35 The Dream Team_doc.doc
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Unit 6课时作业：Lesson 36 Classroom Olympics_doc.doc
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Unit 7课时作业：Lesson 37 Let's Learn Geography！_doc.doc
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Unit 7课时作业：Lesson 38 The World Is a Big Place_doc.doc
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Unit 7课时作业：Lesson 39 Ring Up or Call_doc.doc
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Unit 7课时作业：Lesson 40 Body Language_doc.doc
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Unit 7课时作业：Lesson 41 A Class of the World_doc.doc
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Unit 7课时作业：Lesson 42 North America_doc.doc
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Unit 8课时作业：Lesson 43 Let's Clean Up_doc.doc
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Unit 8课时作业：Lesson 44 Environment Clubs_doc.doc
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Unit 8课时作业：Lesson 45 Let's Sort Garbage!_doc.doc
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Unit 8课时作业：Lesson 46 Protect Our Environment_doc.doc
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Unit 8课时作业：Lesson 47 Connected to Nature_doc.doc
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Unit 8课时作业：Lesson 48 Garbage Is Interesting!_doc.doc
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