朗文(3B)Unit-3(过去时)说课讲解.ppt

朗文(3B)Unit3(过去时)SUNMONTUEWEDTHUFRISAT123456789101112131415161718192021222324252627282930312011年年1月月last monthSUNMONTUEWEDTHUFRISAT123456789101112131415161718192021222324252627282930312010年年12月月last yearlast 上一个上一个ago 以前以前yesterday 昨天昨天2011年年2月月24日日nowbeforefutureWe are going to talk about“before”.So we use the“past tense”.（过去式）（过去式）the pasttodayyesterdayIt is sunny today.It was rainy yesterday.todayyesterdayHe is happy today.He was sad yesterday.todayyesterdayI am in Guangzhou today.I was in Beijing yesterday.todayyesterdayHer hair is short today.Her hair was long yesterday.todayyesterdayThey are at school today.They were at home yesterday.She is two years old now.She _ one year old last year.There are two dogs in my house today.There _ three dogs in my houseyesterday.Today is Thursday.(Yesterday _ Wednesday.)I am not hungry now.I _ hungry two hours ago.We are in Grade Five now.We _ in Grade Four last year.Where is Tom?Where _ Tom yesterday?be动词的过去式：动词的过去式：1.am-was/w wOOzz/2.is-was/w/wOOz/,z/,3.are-were/w/wE:E:/,/,1.否定句在否定句在was,were 后面直接加后面直接加not，was not=wasnt were not=werent2.疑问句把疑问句把was和和were 移到主语的前面。移到主语的前面。请把下面句子变成否定句、疑问句请把下面句子变成否定句、疑问句并回答。并回答。1.He was tired yesterday.2.They were in China last year.3.I was short before.4.It was Sunday yesterday.todayyesterdayI play football today.I played table tennis yesterday.yesterdayShe washed her face yesterday.yesterdayShe picked some flowers yesterday.yesterdayThe baby watched TV yesterday.yesterdayThey skipped yesterday.yesterdayThe boy helped the girl yesterday.yesterdayThey danced yesterday.行为动词过去式的变化规则：行为动词过去式的变化规则：1.直接加直接加ed,2.(辅元辅辅元辅)双写最后一个字母加双写最后一个字母加ed,3.变变y为为i加加ed(y前面是元音不用变前面是元音不用变),4.以以e结尾的词直接加结尾的词直接加d。行为动词过去式行为动词过去式否定句否定句：在动词前面加上在动词前面加上didnt,动词变原形。动词变原形。He watched TV yesterday.He didnt watch TV yesterday.行为动词过去式行为动词过去式一般一般疑问句疑问句：在句子开头加上在句子开头加上Did,动词变原形。动词变原形。He watched TV yesterday.Did he watch TV yesterday?Yes,he did./No,he didnt.行为动词过去式行为动词过去式特殊特殊疑问句疑问句：提问有提问有did,回答动词用过去式回答动词用过去式.。What did you do yesterday?I played basketball.请把下面句子变成否定句、疑问句请把下面句子变成否定句、疑问句并回答。并回答。1.I was thirsty.2.Lily washed her hands.3.My parents were at home.4.I watched TV last night.I played basketball.What did you do yesterday?Past tenseWe make questions with did.Dont change the verb after did.Now you try.I _the dishes.What did you do yesterday?wash the disheswashedI _ my grandparents.What _ you do yesterday?visitmygrandparentsdidvisitedHe _ pictures.didpaintedWhat _ Charlie do yesterday?Charlie,paint picturesWhat did the boy do yesterday?A.skipped B.picked flowersC.dancedWhat did the lady do last Sunday?A.cooked B.cleaned the houseC.watched TVWhat did the man do two days ago?A.cried B.watched TVC.listened to musicWhat did the man do last week?A.skipped B.skatedC.dancedSundayMondayTuesdayWednesdayThursdayFridaySaturdayLast Week1.Was the boy happy yesterday?2.What did Jack do last week?3.Were you hungry yesterday?.4.What did the tigers do last Sunday?助动词的小窍门：助动词的小窍门：1.提问是提问是do,回答用动词原形。回答用动词原形。2.提问是提问是does,回答动词加回答动词加s.3.提问是提问是did，回答动词用过去式，回答动词用过去式.(pre)chapter 31.What does he do every day?2.What do they do after school?3.What did she do yesterday?He sings.They play basketball.She cleaned the house.1.What did she do yesterday?2.What does he do every day?3.What do they do after school?She cooked.He goes swimming.They often run.campingplay hide-and-seekboil waterpick up rubbishcook a mealed的读音规则：的读音规则：1.以清辅音结尾的词读以清辅音结尾的词读/t/,2.以浊辅音结尾的词读以浊辅音结尾的词读/d/,3.以元音结尾的词读以元音结尾的词读/d/,4.以以t或或d结尾的词读结尾的词读/id/。cook-cookedlisten-listenedwatch-watchedwash-washeduse-usedpick-pickedskip-skippedwater-wateredlike-likeddance-dancedstudy-studiedenjoy-enjoyedcry-criedstay-stayedplant-plantedstart-startedwant-wantedneed-neededend-ended主语主语（人物、（人物、动物、物品）动物、物品）+动词动词(play,open,dance,help,cook,wash,study,listen,work,skipfish,clean,jump,water,paint)+时间时间(yesterday,last,ago)YesterdayTomBenLilyJanetPeterSallyfirewood/aiE/u/aiE/u/There is not enough firewood for tonight./I/V/I/V/足够足够 leaf/i:/i:/make a fire with leaves 生火生火 leaves/i:/i:/1.They dont burn燃烧燃烧./E:/E:/2.find more更多的更多的 firewood /O:/O:/3.help to prepare准备准备 lunch /I/eE/I/eE/4.bring带来带来 a lot of firewood /I/O/I/O/很多很多tin/I/I/pork/O:/O:/1.soon 很快很快 2.paper plate 纸碟纸碟3.suddenly 突然突然4.blow away 吹走吹走5.shall 将要将要6.usefor 把把当做当做7.taste 尝尝8.yummy 美味的美味的此课件下载可自行编辑修改，仅供参考！此课件下载可自行编辑修改，仅供参考！感谢您的支持，我们努力做得更好！谢谢感谢您的支持，我们努力做得更好！谢谢