Unit 4 Then and nowPart A第一课时第一课时gymlast yeartimeyears agolast month火眼金睛：火眼金睛：Read quickly(快速、正确地读出单词快速、正确地读出单词)months agograssinternetdining hallReviewlets spellis -are -go -can -see -watch -read -look -waswerewentcouldsawwatchedreadlookedThere is a in Changchun. But there is no library in my village. library There are many in Shanghai. But there are no tall buildingsin my village. tall buildings There are many at night. But there are no stars during the day. starstalk about the differencesThere were . many years ago.But there are no . now. talk about the differencesThere were no . many years ago.But there are many . now. There were no computers or in my time. Yes. But we can things with the internet now.internetlook up But in 1969, the Americans took about 5 days to get there. They went there by spaceship.We never got to the moon 2000 years ago.Lets tryToday, there is a guest visiting the school.Listen and tick or cross.1、 The school changed a little.2、 Grandpa could use computers when he was at school.自读课文，并回答下列问题：自读课文，并回答下列问题：Was there a library in grandpas old school?What was grandpas school like?When did the Americans go to the moon?No, there wasnt.There was only one small building on o hill.In 1969.New words 快速浏览课文，找出下列单词快速浏览课文，找出下列单词guest changea littletellaboutonlyhillat nightmoontook(take) easylook upon the internettime客人客人改变改变少量的，一点少量的，一点告诉告诉关于关于仅仅，只有仅仅，只有小山小山在晚上在晚上月球月球花费花费简单的简单的查阅查阅在互联网上在互联网上时代时代Lets talkLets talk Grandpa : Wow, a library ! There was no library in my old school. Sarah: Tell us about your school ,please.Grandpa : There was only one small building on a hill.Wu yifan: Could you see stars at night?Grandpa : Yes, I like the stars.What was Grandpas school like?(划出句子，并复述）划出句子，并复述）Lets talkLets talk Sarah: Me too. One day Im going to visit the moon.Wu yifan: The Americans took about five days to get there in 1969.Sarah: How do you know that?Wu yifan: Easy , I looked it up on the Internet.Grandpa : Ah! There were no computers or Internet in my time.Lets talkLets talk What was your school like five years ago?What is it like now? Draw and talk. There was. There were. There is . There werefor exampleNothing endures ndj(r)but change.万物在变万物在变,惟有变化不变惟有变化不变So please change before you have to.未雨绸缪，防患于未然未雨绸缪，防患于未然