Section A(2d-3b)Unit 52d 分角色表演对话Cindy:Hey,Helen,Lets go!We are late!Helen：OK.Cindy:Do you have the baseball?Helen:Yes,I do.Lets 后跟动词原形表示“让我们”Grammar Focus助动词do 引导的一般现在时的疑问句Do you/they/we have a.?肯定回答：yes,I/they/we do.否定回答：no,I/they/we dont.第三人称do 改为does,Does he/she have a?肯定回答：yes,he/she does.否定回答：no,he/she doesnt.注意注意：其中，dont=do not doesnt=does notNote:has 是 have 的第三“人称单数”形式，简称“三单形式”，它的否定形式为 doesnt have,再例如，knows,needs,lookseg,He has a photo of his family.He doesnt have a photo of his family.Practice the following:He has a sofa in his room.She has a hat.Wang Lu has a dresser in her room.3a write each word in the correct place in the chart.I he they youWe she it Eric do does3b 用do/does 填空，然后与同伴练习对话A:_you have a baseball?B:Yes,I _.A:Great!I have a bat.Lets play!Do do A:_ John have a soccer ball?B:No,he _.A:_ he have a ping-pong bat?B:Yes,he _.I think he has a ping-pong ball,too.A:Hmm,Lets ask.DoesDoesdoesDoesntA:_ your friends have a basketball?B:Yes,they _.They have two basketballs.A:Well,Lets play basketball.B:That sounds good.Do do 那听起来不错。