Section B （3aSelf Check）,Unit 3 Is this your pencil?,课后作业,一、选词填空 1. _ (This/That) is a book. _ (This/That) is a pen over there. 2. Is that your schoolbag? _ (No/Not), it isnt. Its _ (she/her) schoolbag. 3. Are these _ (yours/his) pencils? Yes, theyre _ (mine/his). 4. Is this _ (her/hers) picture? No, it _ (is/isnt). 5. Are _ (that/those) your maps? Yes, they are _ (me/mine).,This,That,No,her,his,his,her,isnt,those,mine,二、写出下列句子的同义句 1. This is her book. This book is _. 2. That is his pencil. _ _ _ _. 3. These are my books. _ _ _ _. 4. Those are her erasers. _ _ _ _.,hers,That pencil is his,These books are mine,Those erasers are hers,三、书面表达 假设你是李华，你在学校图书馆丢失了一个书包，里面有一本英文书、一个笔记本、一个铅笔盒、一块手表和一串钥匙。请你写一份失物招领，并请拾到者与你联系，电话是656-8799。要求：词数40个左右，书写格式正确。,_,Lost: I lost a schoolbag in the school library. An English book, a notebook, a pencil box, a watch and a set of keys are in it. I must find it. Call me at 6568799. Thank you for your help. Li Hua,