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                      Unit 1 Section 1 Listening and Speaking(分层练习).pdf                  
              
                     
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                      Unit 1 Section 1 Reading(分层练习).pdf                  
              
                     
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                      Unit 1 Section 2 Grammar(分层练习).pdf                  
              
                     
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                      Unit 1 Section 3 Speaking and Writng(分层练习).pdf                  
              
                     
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                      Unit 1 Section 4 Focusing culture,Cross-curricular connection,Project(分层练习).pdf                  
              
                     
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                      Unit 2 Section 1 Reading(分层练习).pdf                  
              
                     
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                      Unit 2 Section 3 Writing(分层练习).pdf                  
              
                     
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                      Unit 2 Section 4 Focusing culture,Cross-curricular connection,Project(分层练习).pdf                  
              
                     
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                      Unit 3 Section 1 Listening and Speaking(分层练习).pdf                  
              
                     
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                      Unit 3 Section 2 Grammar(分层练习).pdf                  
              
                     
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                      Unit 3 Section 4 Focusing culture,Cross-curricular connection,Project(分层练习).pdf                  
              
                     
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                      Unit 4 Section 1 Listening and Speaking(分层练习).pdf                  
              
                     
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                      Unit 4 Section 1 Reading(分层练习).pdf                  
              
                     
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                      Unit 4 Section 2 Grammar(分层练习).pdf                  
              
                     
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                      Unit 4 Section 4 Focusing culture,Cross-curricular connection,Project(分层练习).pdf                  
              
                     
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                      Unit 5 Section 1 Listening and Speaking(分层练习).pdf                  
              
                     
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                      Unit 5 Section 1 Reading(分层练习).pdf                  
              
                     
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                      Unit 5 Section 2 Grammar(分层练习).pdf                  
              
                     
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                      Unit 5 Section 4 Focusing culture,Cross-curricular connection,Project(分层练习).pdf                  
              
                     
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                      Unit 6 Section 1 Listening and Speaking(分层练习).pdf                  
              
                     
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                      Unit 6 Section 1 Reading(分层练习) (1).pdf                  
              
                     
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                      Unit 6 Section 1 Reading(分层练习).pdf                  
              
                     
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                      Unit 6 Section 2 Grammar(分层练习).pdf                  
              
                     
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                      Unit 6 Section 3 Writng(分层练习).pdf                  
              
                     
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                      Unit 6 Section 4 Focusing culture,Cross-curricular connection,Project(分层练习).pdf                  
              
                     
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                      Unit 7 Section 1 Reading(分层练习).pdf                  
              
                     
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                      Unit 7 Section 2 Grammar(分层练习).pdf                  
              
                     
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                      Unit 7 Section 3 Writing(分层练习).pdf                  
              
                     
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                      Unit 7 Section 4 Focusing culture,Cross-curricular connection,Project(分层练习).pdf                  
              
                     
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                      Unit 8 Section 1 Listening and Speaking(分层练习).pdf                  
              
                     
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                      Unit 8 Section 1 Reading(分层练习).pdf                  
              
                     
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                      Unit 8 Section 3 Writing(分层练习).pdf                  
              
                     
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                      Unit 8 Section 4 Focusing culture,Cross-curricular connection,Project(分层练习).pdf                  
              
                     
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