单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,Unit 4 Then and now,(Grammar time),Unit 4 Then and now,Quick response,Say the,past forms of the verbs,.说出下列动词的过去式。,am,are,can,do,eat,fly,get,go,buy,take,read,write,Quick responseSay the past for,am/is-was are-were,do-did buy-bought,eat-ate take-took,fly-flew read-read,get-got can-could,write-wrote go-went,Lets read.,am/is-was are-wer,What did they do just now?,Lets play a game.,Theyjust now.,What did they do just now?Let,What did they do just now?,Lets play a game.,Theyjust now.,What did they do just now?Let,play basketball,Lets play a game.,They play,ed,basketball just now.,play basketballLets play a g,play the piano,Lets play a game.,They play,ed,the piano just now.,play the pianoLets play a ga,listen to music,Lets play a game.,They listen,ed,to music just now.,listen to musicLets play a ga,point at the blackboard,Lets play a game.,They point,ed,at the blackboard just now.,point at the blackboardLets p,fly kites,Lets play a game.,They,flew,kites just now.,fly kitesLets play a game.The,read English books,Lets play a game.,They,read,English books just now.,read English booksLets play a,Think and say.(,想一想，说一说）,Mike,Six years ago,，,I,_,couldnt write.,Think and say.(想一想，说一说）Mike,Twenty years ago,he,_.,wrote letters,Twenty years ago,hewrote lett,Twenty years ago,she,_.,bought things from shops,Twenty years ago,she bought t,Thirty years ago,they,_,_.,listened to the radio for,the news,Thirty years ago,theylistened,Think and say:,这些句子是什么时态呢？从哪里可以看出来？,Think and say:这些句子是什么时态呢？从哪里可,Say,more phrases,.,说出更多的表示过去的时间状语。,ago,last,yesterday,Say more phrases.ago lastyes,When do we use the past tense?(,我们什么时候使用一般过去时呢？）,当我们谈论过去发生的动作或状态时，我们使用一般过去时。,When do we use the past tense?,我们可以将表示过去的时间放在句首，也可将其置于句末。,Twenty years ago,she bought things from shops.,She bought things from shops twenty years ago.,时间放句首时要用逗号隔开。,我们可以将表示过去的时间放在句首，也可将其置于句末。Twe,试着把表示时间的短语放在句子最后，说一说。,I couldnt write six years ago.,He wrote letters twenty years ago.,They listened to the radio for news thirty years ago.,试着把表示时间的短语放在句子最后，说一说。I couldn,有时候没有明确的时间表达，需要根据上下文和具体语境使用合适的时态。,-I watched a film last night.What about you?,-I wrote an email to my e-friend.,有时候没有明确的时间表达，需要根据上下文和具体语境使用合适的,The Very Hungry Caterpillar,By Eric Car,The Very Hungry Caterpillar,a little egg lay on a leaf.,-1-,In the light of the moon,-2-,a little egg lay on a leaf.-1-,-3-,One Sunday morning,the warm sun came up and-POP!-out of the egg came a tiny and very hungry caterpillar.,-4-,-3-One Sunday morning,the war,-5-,He started to look for some food.,On Monday he ate through one apple.,But he was still hungry.,-6-,-5-He started to look for some,-7-,On Tuesday he ate through two pears.,But he was still hungry.,-8-,On Wednesday he ate through three plums.But he was still hungry.,-7-On Tuesday he ate through t,-9-,-10-,On Thursday he ate through four strawberries.,But he was still hungry.,-9-10-On Thursday he ate thro,-11-,On Friday he ate through five oranges.,But he was still hungry.,-12-,-11-On Friday he ate through f,-13-,-14-,On Saturday he ate through one piece of chocolate cake,one ice-cream cone,one pickle,one slice of Swiss cheese,one slice of salami,-13-14-On Saturday he ate thr,-15-,-16-,One lollipop,one piece of cherry pie,one sausage,one cupcake,and one slice of watermelon.,That night he had a stomachache!,-15-16-One lollipop,one piec,-17-,-18-,The next day was Sunday again.The caterpillar ate through one nice green leaf.,And after that he felt much better.,-17-18-The next day was Sunda,-19-,Now he wasnt hungry any more and he wasnt a little caterpillar any more.He was a big,fat caterpillar.,-20-,-19-Now he wasnt hungry any m,He built a small house called a cocoon,around himself.He stayed inside for more than two weeks.Then he nibbled a hole in the cocoon,pushed his way out and,-22-,-21-,He built a small house called,-23-,-24-,He was a beautiful butterfly!,-23-24-He was a beautiful but,Say a rhyme.,Once,Once I,was,a caterpillar,sitting on a leaf.,But now I,am,a butterfly,flying in the bright blue sky.,Say a rhyme.Once,Say a rhyme.,Once,Once I was _,_ in my bed.,But now I am _,_happily with my _.,Say a rhyme.Once,Make a rhyme.,Once,Once I was _,_ in my bed.,But now I am _,_happily with my _.,Make a rhyme.Once,Make a rhyme.,Once,Once I was _,_ my mum.,But now I am _,_happily with my _.,Make a rhyme.Once,Read the passage,guess who she is.(,读一读，猜猜她是谁？）,She was a little girl.,She could not read or write.,She could not speak English.,Now she can read and write.,She can speak English well.,She can teach children English.,She likes teaching.,She likes chatting with her students.,Read the passage,guess who,读一读，注意比较一般过去时和一般现在时。,Thirty years ago,she was a little girl.,She could not read or write.,She could not speak English.,Now she can read and write.,She can speak English well.,She can teach children English.,She likes teaching.,She likes chatting with her students.,读一读，注意比较一般过去时和一般现在时。Now she c,Many years ago,Things were very slow.,There were