present(now)futurepast现在完成时 ( present perfect tense)do my homework Mother: John, clean your teeth please.John: Mum, I have have alreadyalready( (已经已经) cleaned) cleaned them.comb your hair - have combed itwash your hands - have washed themstudy for English test - have studied for ittell me the truth -have told you everythingvisit your grandpa - have visited himlisten to the English tape - have listened to itMother: John, clean your teeth please.John: Mum, I have already cleaned them.Father: Tell your sister to buy some milk, John.John: Oh, she has has justjust( (刚刚刚刚) bought) bought some.Father: Tell your sister to buy some milk, John.John: Oh, she has just bought some.carry some water for the old man -has carried someboil some water - has boiled somemake some coffee - has made some call Mr. Smith - has called himmend the shirt - has mended itdry her hair -has dried hers现在完成时一.构成:have/ has + done (过去分词)过去分词(pp)其变化方法和动词过去式基本相同 。有部分不同，需要记好。He has lived in Shenzhen for 4 years. Has he lived in Shenzhen for 4 years? Yes,he has. / No, he hasnt .二: 用法: 1)现在完成时表示过去发生的动作,并对现在有影响。Someone has broken the window. (窗户现在是坏的) I have already lost the key. (我现在没有钥匙) I havent read that book yet . (不了解书的内容) I have just cleaned my hands. (手是干净的)常与already(已经), yet(已经), just(刚刚),ever(曾经)等词连 用. already: 常用于肯定句中.yet: 常用于否定句,疑问句尾. Translate the following sentences. 1. 你已经找到你的书了吗? (find-found)2. 他们在这个城市建了许多房子. (build-built)3. Judy还没到达. (arrive-arrived)4. 你吃过早饭了吗? (have-had)5. 她刚刚离开. (leave-left)Have you found your book yet?They have built many buildings in this city. Judy hasnt arrived yet. Have you had breakfast ?She has just left. A: Have you surfed the internet ( 上网)? B: Yes, I have . / No, I havent. talk on the phone for an hour play soccereat (eaten) French Friessee (seen) a tiger Sam got sick two days ago . Sam has been sick for two days. Sherry got her drivers license (执照) in 1999. Sherry has had her drivers license since( 自从) 1999. Arnold started to play tennis in Jan. Arnold has played tennis since Jan. Maggie moved to Hawaii in 1996. Maggie has lived in Hawaii for about 8 years. 现在完成时二: 用法: 2)现在完成时表示从过去一直持续到现在的动作或状态。 She has learned English for 5 years. He has lived in Beijing since ( 自从)he was born . Have you stayed here since ( 自从) 3 oclock?常与for, since引导的时间短语或从句连用.for+ 时间段since+时间点 , since+ 句子Make sentences about the inventions. Invention Date newspaper1610canned food1823sewing machine(缝纫机)1851airplane1903plastic(塑料)1907People have read newspaper since 1610 . People have read newspaper for about 400 years. 抄写动词以及过去式和过去分词。1.be- 2.come3.go- 4.do5.have- 6.drink7.give- 8. eat 9.know- 10.make11.run- 12.say13.see- 14.find15.draw- 16.get17.hear- 18.begin19.buy- 20.leavewas/were -beencame-comewent-gonedid-done had-haddrank-drunk gave-givenate-eaten knew-knownmade-made ran-runsaid-said saw-seenfound-found drew-drawngot-got heard-heardbegan-begun bought-boughtleft-left现在完成时一.构成:have/ has + done (过去分词)过去分词(pp)其变化方法和动词过去式基本相同。有部分不 同，需要记好。 二: 用法: 1)现在完成时表示过去发生的动作,并对现在有影响。I have justjust called him.2 表示从过去已经开始，持续到现在的动作或状态。He has worked in this school since he came here.常与already(已经), yet(已经), just(刚刚),ever(曾经)等词连用 . 常与for, since引导的时间短语或从句连用.What has just happened to him ? He has just lost his job. What has just happened to her ?She has just got a love letter . Make sentences about the inventions. Invention Date newspaper1610canned food1823sewing machine(缝纫机)1851airplane1903plastic(塑料)1907People have read newspaper since 1610 . People have read newspaper for about 400 years. since: (自以来)1)since+时间点He has stayed here since 5 oclock.2)since+ 时间段+ agoHe has stayed here since 5 hours ago.3)since+ 从句She has taught English since he came here.for: (长长达）for+ 时间段He has kept the book for 2 weeks.since , for 的用法:Take notes 用for 或since填空1.Mr. Brown has had his TV _ 15 years. 2. Ive taken driving lessons _ last month. 3. My sister has had her cell phone _ a month . 4. My friends havent visited me _ my birthday. 5. We havent used our car _ a long time . 6. She hasnt had a good cup of coffee _ years. 7. Tom has worn glasses _ he was 7 years old. forsinceforsinceforforsinceHow long have you learned English ?had your watch?studied in our school ?had your current hairstyle(发型)?known your best friend?worn your glasses?抄写动词以及过去式和过去分词。1.be- 2.come3.go- 4.do5.have- 6.drink7.give- 8. eat 9.know- 10.make11.run- 12.say13.see- 14.find15.draw- 16.get17.hear- 18.begin19.buy-