Unit 4Where’s my schoolbag?(我的书包在哪儿？我的书包在哪儿？) chairclock/ɔ/bed /e/sofa /әu/ /ә/bookcase/ei//eә /keys /i: /books /u /schoolbag/ æ/table /ei/ on the boxunder the box in the boxWhere’s the cat?It’s … Where are the cats?They’re... on the boxunder the boxin the box Summary:Where’s+单数名词(物）？ It’s in/on/under+其他成分.Where are +复数名词？ They’re in/on/under+其他成分.•pencil__ pencils•book___ books•computer game__ computer games•baseball__ baseballs•pencil box__ pencil boxes•schoolbag__ schoolbags Pairwork:Where’s the…? It’s on/ in/ under …. Where are the …?They are in/ on /under the… A: Is the dog on the chair?B: Yes, it is. A: Is the baseball on the sofa?B: No, it isn’t. It’s under the sofa. A: Are the books on the sofa?B: Yes, they are. A: Are the pencils under the schoolbag? B:No, They aren’t. They are in the schoolbag. Summary:1.Is +单数名词(物）+介词短语？Yes, it is./ No, it isn’t.2.Are +复数名词+介词短语？ Yes, they are./No,they aren’t.3.where’s=where is 4.they’re= they are5.it’s=it is 6.isn’t=is not. 7.aren’t=are not. A: Where the keys?B: They’re the .A: Where’s the ? it on your desk?B: No, it’s the chair.A: Where the pencils?B: I don’t know. they in the ?A: Yes, they are.Practice:3a Look at the picture and complete the conversations.areondeskbookIsunderareAreschoolbag 3b Ask and answer questions about the things on the right. 。