《江蘇省連云港市田家炳中學(xué)八年級(jí)英語(yǔ)上冊(cè)《Unit2 School life grammar》課件1 牛津版》由會(huì)員分享，可在線(xiàn)閱讀，更多相關(guān)《江蘇省連云港市田家炳中學(xué)八年級(jí)英語(yǔ)上冊(cè)《Unit2 School life grammar》課件1 牛津版（10頁(yè)珍藏版）》請(qǐng)?jiān)谘b配圖網(wǎng)上搜索。

1、Present perfect tensePresent perfect tense現(xiàn)在完成時(shí)態(tài) 8BUnit 2 Grammar 1現(xiàn)在完成時(shí)態(tài)的含義是表示過(guò)去發(fā)生現(xiàn)在完成時(shí)態(tài)的含義是表示過(guò)去發(fā)生的或已完成的動(dòng)作對(duì)現(xiàn)在造成的影響或的或已完成的動(dòng)作對(duì)現(xiàn)在造成的影響或結(jié)果。特點(diǎn)是既涉及過(guò)去，又聯(lián)系現(xiàn)在：結(jié)果。特點(diǎn)是既涉及過(guò)去，又聯(lián)系現(xiàn)在：動(dòng)作是過(guò)去發(fā)生的，結(jié)果是現(xiàn)在存在的。動(dòng)作是過(guò)去發(fā)生的，結(jié)果是現(xiàn)在存在的。 Look! The blackboard is so clean now. He has cleaned the blackboard. ( (他已經(jīng)擦過(guò)黑板了。他已經(jīng)擦過(guò)黑板了。) )

2、這句話(huà)所表示的結(jié)果是黑板現(xiàn)在是干凈的。這句話(huà)所表示的結(jié)果是黑板現(xiàn)在是干凈的。一、一、現(xiàn)在完成時(shí)謂語(yǔ)動(dòng)詞的構(gòu)成：現(xiàn)在完成時(shí)謂語(yǔ)動(dòng)詞的構(gòu)成：助動(dòng)詞助動(dòng)詞HAVE/HAS(NOT) +V-ED（過(guò)去分（過(guò)去分詞）詞）I _(finish) the composition already. He _(learn) English for three years. We/You/ They. She.這種用法常與這種用法常與ALREADY, JUST, YET, EVER, NEVER, BEFORE(句末句末)等連用等連用. I _ (do) my homework already. He _(not

3、 finished) his homework yet. _you ever _(be) to Beijing? We _ never _ (see) such an exciting match before. Mother _ just _(clean) the house. Please dont come in. They _(practice) this dialogue twice.have donehas not finishedHavebeenhaveseenhascleanedhave practiced注意：當(dāng)在肯定陳述句中含有注意：當(dāng)在肯定陳述句中含有alreadyalr

4、eady或或just just 時(shí)，在轉(zhuǎn)換成否定句或疑問(wèn)句時(shí)，要把句中的時(shí)，在轉(zhuǎn)換成否定句或疑問(wèn)句時(shí)，要把句中的already already 或或just just 去掉，在句末加上去掉，在句末加上yet. yet. I havent seen the film yet. I have done my homework already.I havent done my homework yet. Mother has just cleaned the house.Mother hasnt cleaned the house yet. I have seen the film already.

5、 have been to 曾經(jīng)去過(guò)某地（已返回）曾經(jīng)去過(guò)某地（已返回）Someone went to some place and has already come backhave been in 去某地一段時(shí)間去某地一段時(shí)間 someone stay in some place for some time have gone to 去了某地去了某地 （沒(méi)有回來(lái)）（沒(méi)有回來(lái)）Someone went to some place and is still there A BAA BB stay 1.1.她以前曾去過(guò)上海。她以前曾去過(guò)上海。 She has been to Shanghai b

6、efore. 2.2.他在上海他在上海1010年了。年了。 She has been in Shanghai for ten years 3.他去上海了。他去上海了。He has gone to Shanghai.translationsWork in pairsReplace the underlined words with your own ideasA: Have ever been to City Library?B: Yes .I often go there with kitty?A:But wheres Kitty today?B: She has gone to the library again.A: How long has she been in the library?B:I dont know.Finish the exercises on Page 31Bye-bye!Bye-bye!