Unit 4 Then and nowPart A (Let's learn & Find the mistakes)Warm-up点击图片，播放视频或点击此处播放视频或点击此处播放视频Lead in Today we are going to visit our school.Now, let' s go !PresentationLet's learnWhat's this?grassgrassWhat can we do on the grassgrass?We can play footballand play sports on the grassgrass.grassgrass短语： on the grass 在草坪上 Don't run on the grass.联想： tree/flower Where is here ?gymgymWhat can we do in the gymgym?play tennisplay basketballplay ping-panggymgym联想： playground There is a gym in our school.Where is here ?dining hallWhat can we do in the dining hallin the dining hall ?have lunchdining halldining hall近义短语： dining room There was no dining hall in my school.this yearlast year...years agoago点击图片，播放视频或点击此处播放视频或点击此处播放视频What are the difference?nowtwenty years agoPracticeLook and compareWas there a gym in the school ？No, it wasn' t.Is there a gym in the school ？Yes, it is.There was no gym in the school twenty years ago.Now there is a new one in the school.For example:There was no _______ in the school twenty years ago.Now there is a new one in the school.Attention: 注意使用 there be 句型Let's say Find the mistakesthere were no gymspeople didn't go by buspeople couldn't use the InternetPracticePair workDisscuse with your partner,talk about the mistakes in the Tang dynasty. At that time,there were no dining hall.... Exercise 选择正确的选项()1.There _____no water in the river before. A.is B.was C.were()2.There _____some new buildings now. A.is B.were C.are()3.He went to Hangzhou______. A. now B.tomorrow C.two months agoBCCSummary（听、说、认读、写）词汇：gym, grass, ago, dining hall
