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            [00:00.72]Module 4  Unit 1 Let's make a home library.                         
[00:07.00]一、Listen and number. 听一听,排一排。
[00:15.42]1.  M: heavy                                        
[00:21.31]2. W: library 
[00:26.80]3. M: card  
[00:31.25]4. W: student 
[00:37.19]二、Listen and match. 听一听,连一连。
[00:48.91]W: The CDs are on Shelf A .The dictionary is on Shelf B.The book about art is on Shelf C.The book about animals is on Shelf A.The book about Science is on Shelf C. 
[01:17.29]W: The CDs are on Shelf A .The dictionary is on Shelf B.The book about art is on Shelf C.The book about animals is on Shelf A.The book about Science is on Shelf C.