课件15张PPT。Unit 5 It's a lemon period 1let's sing What's that ? What's this ?I can sayWhat's he going to buy? guessappleansweep the floor Sarah can...bananaaorangeanlemonaWhat's missing?What's missing?Let’s drill-What's this ?-It's a /an···-What's that?-It's a/an ··· She can …B: Sarah is helpful ! Let’s play a game一个小朋友背对大家,这时,老师将卡片藏于某一课桌里,然后这名同学开始寻找,寻找的同学离图片越来越近,问的声音就要越来越大。Listen and circle1.an apple2.an orange3.a banana4.a lemonGoodbye!Thank you !