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初中英语牛津译林版八年级下册Task教课内容课件ppt
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这是一份初中英语牛津译林版八年级下册Task教课内容课件ppt，共44页。PPT课件主要包含了现在完成时态，present，Past，过去分词的构成，ABB，AAA， ABC，has waited，Have，known等内容，欢迎下载使用。
Learning aims
1.T knw the present perfect master the structure f the PPT. 3.T learn the differences between the simple past tense and the present perfect tense.
Questins abut Reading:
(1) Hw lng has Mr. Chen lived in Sunshine Twn? (2) When did Mr. Chen get married?
He has lived in Sunshine Twn since he mved there with his family when he was tw years ld.
(3) There have been many changes in this twn. What has the centre f twn becme?
It has becme a park.
(4) Hw des Mr. Chen feel frm time t time?
He feels a bit lnely.
Sme mre questins:
(1) Hw lng have yu lived in this twn?(2) Hw lng have yu studied in this schl?(3) Hw lng have yu studied English?(4) What have been studied these days?(5) Where have yu been recently?
The Present Perfect Tense
We use the simple past tense t talk abut what happened at a definite time in the past.Past present Eddie was brn fur years ag.
We use the present perfect tense t talk abut things that started in the past and still have sme cnnectin with the present. Eddie has lived with Millie since he was brn. Eddie has lived with Millie fr fur years.
一、现在完成时的构成 1. 现在完成时的肯定句 句型 主语（第一、二人称单、复数）+have 主语（第三人称复数） +have +过去分词 主语（第三人称单数） +has
We have lived in Beijing. He has lived in Beijing. I have finished my hmewrk.
2.现在完成时的否定句句型 主语+have/has+nt+过去分词+) I have nt seen the mvie yet.2) He hasn't been t Beijing since then.
Sme mre examples:
Making sentencesThey___________(finish) their hmewrk.Mr. And Mrs. Li _____________(nt cme) back yet.Jhn___________ (play) this cmputer game a few times.We _______________ (nt see)that film yetMr. Dng _______________ (repair) ver ten bicycle since last Mnday.Yu _________________ (nt visit)me fr a lng time.
have finished
haven’t cme
have nt seen
have nt repaired
have nt visited
Check the answers:
3. 现在完成时的一般疑问句句型 Have/Has+主语+过去分词+….Have yu finished the wrk?Has she arrived here?4. 现在完成时的特殊疑问句句型 特殊疑问词+have/has+主语+过去分词+…….Hw many times have yu been t the Great Wall?
Chat timeM : ______ yu ____ (see)any exhibitin recently, Sandy?S : N, I _______.What abut yu?M : Yes, I _____________ (see) ne. I saw it at the histry museum last week. S : What is it abut?M : I ______________ (frget) the title. It's abut changes in Beijing ver the past century.
have frgtten
S: Oh, yes. I ____________ (hear) abut it._______ yur cusin ____ (g) with yu?M : N, he _______. He ________ (be) very busy this week.S : Did yu enjy the exhibitin? M : Yes, I did. I ___________ (learn)a lt abut Beijing’s past and present. It’s a gd exhibitin and I _____________ (decide) t see it again. D yu want t g with me? S : Sure. I wn’t miss it this time.
have decide
用括号中动词的适当形式填空He _____________ (wait) fr an hur. I __________________ (nt finish) the wrk yet.________yu _________ (knw) him since then?I _____________ (hear) frm my father recently.We (be) there many times in the past 3 years.The dg (die) since 3 days ag.They ________________ (finish)the wrk s far.Hw lng ________ yu (stay) at hme already?
haven’t finished
has been dead
9. I _____________ (nt read) the bk befre.10. He _______ just __________ (d) it.11. My sister (walk) t schl every day last year.12. We ________________ (have) an exam again smetime next week.13. By 2000, we ____________ (plant) 2000 trees.14. Lucy ___________ (g) t Shanghai. She ______ .(leave)this mrning. 15. Tm _____________ (buy) the bike fr 2 years.
had planted
haven’t read
She has been t Shanghai befre.
She has been in Shanghai fr ten years
He has gne t Shanghai.
He has studied English fr five years.
Have a try!
◆常与不确定的时间状语连用，如:already, never, ever, just, yet, befre, up t nw, s far, fr the last few weeks等,表示“到目前为止”所发生的动作.◆还可以和包括现在在内(到说话时仍未结束)的,表示一段时间的状语连用，如:nw, tday, this mrning (afternn, evening, week, mnth, year), these days, since, fr a lng time等.
一.表示从过去某一时刻开始并一直延续现在的动作或事情,但动作或事情现在已经结束。
Smene has just turned ff the light.有人刚把灯关了。
I have already finished my hmewrk.我已经完成了家庭作业。
二.表示从过去某一时刻开始并一直延续到现在的动作或事情,但动作或事情可能仍在继续。
I want t see hw much the place has changed since I saw it last. 我想看看从上次见到那地方以来它发生了多大变化。
I have learnt English fr mre than ten years.我已经学了10多年的英语。
三.表示人曾有过或到目前为止从未有过的经历.
Have yu ever been t the Summer Palace?你曾去过颐和园吗?
I have never had a car.我从未有过汽车。
四.现在完成时还常与句型 This is the first time...，It’s the first time...
This is the first time he has driven a car .这是他第一次开车。
五.现在完成时和最高级连用表示到现在为止是最…的。
What a bring film! 一部多么令人厌烦的电影啊！
It’s the mst bring film I’ve ever seen.这是我看过的最令人厌烦的电影。
现在完成时的知识点检查
1.He_______（write）the sentence (修理)yur bike yet?3.Cmputers___________(cme)int use______(近来) yu __________________(看展览) recently?N. Is it abut changes in Beijing ver the past______(世纪)?5.He______________________(忘记标题),hasn’t he?
has written
seen any exhibitins
has frgtten the title
★since短语或从句表示过去的动作延续至今，since之后的时间为一点。 Mr. Smith has wrked here since 1984. 1984年以来，史密斯先生一直在这工作。He’s learned abut 5,000 English wrds since he went t cllege.他上大学以来大约学了五千个英语单词。
★fr短语表示动作延续多长时间，fr的宾语为时间段。 1.We have knwn each ther fr twenty years. 我们认识有二十年了。2.I haven’t seen her fr a lng time.我好久没有见到她了。
选用 fr和 since填空:1.We haven’t seen each ther ______ a lng father has been in the Party ______ 10 years film has been n ______ 20 Green has wrked here ______ he came t grandparents have been dead ______ several years.6. It’s five years _______ we met last time.
fr后面应该接“段时间”；since后面应该接“点时间”或者“句子”。
关键点：1.since fr 主句都用现在完成时，主句动词为延续性引导的从句通常采用“一般过去时”
★just, recently是完成时的时间状语,just nw 有a mment ag 之意，是一般过去时的时间状语。The train has just arrived. 火车刚到。Did yu see Jan just nw? 你刚才看到琼了吗？Have yu heard frm yur family recently? 你最近收到家人的来信了吗？
1.I______(lse)my pen just nw. I______ just _____(lse)my pen .我刚才丢了钢笔2.She_____ just _________ (buy) a bk.She_______ (buy) a bk just nw.她刚才买了本书
★ever和never也是现在完成时常见的时间状语。前者意思是“曾经”，多见于疑问句或否定句中；后者意思是“从来没有”，表示全部否定。“Have yu ever seen the film?” “N. I have never seen it.”“你曾经看过这部影片吗？”“没有， 从来没看过。Nbdy in ur class has ever been there. 我们班没有人去过那。
★already和yet常见于现在完成时中，有“已经”之意。前者一般用在肯定句中，后者用在疑问句中。yet在否定句中有“还”之意。“Has the bus left yet”? “Yes. It has already left.” “N. It hasn’t left yet.“汽车开走了吗？” “是的，已经开走了。” “不，还没有开走。 ”
“already” 用于现在完成时的肯定句中, “yet” 用于现在完成时的否定句和疑问句中. 用“already” “yet”填空 He has ( ) visited many places in China. 注意 "already" 在句中的位置. The train hasn't arrived. 火车到现在还没有到。 Hasn't he cme ? 她还没来吗？
in the past few years 意思是“过去几年来”，可作现在完成时的时间状语；in the past意思是“在过去”，常作一般过去时的时间状语。Great changes have taken place in my hmetwn in the past few years.过去几年来，我的家乡发生了很大的变化。Where did yu wrk in the past? 你过去在哪里工作？
befre泛指“以前”时，可用于现在完成时中；ag表示“现在的一段时间以前”，是一般过去时的时间状语。I’ve never been t Japan befre. 我以前没去过日本。She went t Japan a year ag. 她一年前去了日本。
even since 、then与frm then n (after that)都有“打那以后”之意，前者是完成时的时间状语，后者常用作一般过去时的时间状语。She’s lived here ever since then. 打那以后，她一直住在这。I didn’t hear f Jim frm then n/after that. 打那以后，我就没有吉姆的消息。
动 词 填 空： 1._____ yu ________(clean) the rm? Yes, we __________(d) that already. When _______ yu ______(d) it? We _______(d) it an hur he ______(see) this film yet? Yes. When _____ he _____(see) it? He ______ it last week. 3. Hw many times _____yu______(be) there?
4. I __________ (read) the nvel twice. It’s interesting.5. She _________(g) t Pairs, hasn’t she? Yes. Hw ______ she _______(g) there? She _______(g) there by air.6. S far, many cuntries _______________(develp) their sftware Chen ______(give)up smking last Chen __________(give) up smking since last year.
have develped
1、了解一般过去时与现在完成时最基本的区别是
一般过去时强调动作发生的时间
现在完成时侧重动作的结果
2、牢记现在完成时不能与表示过去的时间连用， 包括疑问词when
3、知道现在完成时的两种特点 （1）：过去对现在 （瞬间性动词） （2）：过去到现在（延续性动词）
复习本课所学内容完成导学案中练习
Learning aims
1.T knw the present perfect master the structure f the PPT. 3.T learn the differences between the simple past tense and the present perfect tense.
Questins abut Reading:
(1) Hw lng has Mr. Chen lived in Sunshine Twn? (2) When did Mr. Chen get married?
He has lived in Sunshine Twn since he mved there with his family when he was tw years ld.
(3) There have been many changes in this twn. What has the centre f twn becme?
It has becme a park.
(4) Hw des Mr. Chen feel frm time t time?
He feels a bit lnely.
Sme mre questins:
(1) Hw lng have yu lived in this twn?(2) Hw lng have yu studied in this schl?(3) Hw lng have yu studied English?(4) What have been studied these days?(5) Where have yu been recently?
The Present Perfect Tense
We use the simple past tense t talk abut what happened at a definite time in the past.Past present Eddie was brn fur years ag.
We use the present perfect tense t talk abut things that started in the past and still have sme cnnectin with the present. Eddie has lived with Millie since he was brn. Eddie has lived with Millie fr fur years.
一、现在完成时的构成 1. 现在完成时的肯定句 句型 主语（第一、二人称单、复数）+have 主语（第三人称复数） +have +过去分词 主语（第三人称单数） +has
We have lived in Beijing. He has lived in Beijing. I have finished my hmewrk.
2.现在完成时的否定句句型 主语+have/has+nt+过去分词+) I have nt seen the mvie yet.2) He hasn't been t Beijing since then.
Sme mre examples:
Making sentencesThey___________(finish) their hmewrk.Mr. And Mrs. Li _____________(nt cme) back yet.Jhn___________ (play) this cmputer game a few times.We _______________ (nt see)that film yetMr. Dng _______________ (repair) ver ten bicycle since last Mnday.Yu _________________ (nt visit)me fr a lng time.
have finished
haven’t cme
have nt seen
have nt repaired
have nt visited
Check the answers:
3. 现在完成时的一般疑问句句型 Have/Has+主语+过去分词+….Have yu finished the wrk?Has she arrived here?4. 现在完成时的特殊疑问句句型 特殊疑问词+have/has+主语+过去分词+…….Hw many times have yu been t the Great Wall?
Chat timeM : ______ yu ____ (see)any exhibitin recently, Sandy?S : N, I _______.What abut yu?M : Yes, I _____________ (see) ne. I saw it at the histry museum last week. S : What is it abut?M : I ______________ (frget) the title. It's abut changes in Beijing ver the past century.
have frgtten
S: Oh, yes. I ____________ (hear) abut it._______ yur cusin ____ (g) with yu?M : N, he _______. He ________ (be) very busy this week.S : Did yu enjy the exhibitin? M : Yes, I did. I ___________ (learn)a lt abut Beijing’s past and present. It’s a gd exhibitin and I _____________ (decide) t see it again. D yu want t g with me? S : Sure. I wn’t miss it this time.
have decide
用括号中动词的适当形式填空He _____________ (wait) fr an hur. I __________________ (nt finish) the wrk yet.________yu _________ (knw) him since then?I _____________ (hear) frm my father recently.We (be) there many times in the past 3 years.The dg (die) since 3 days ag.They ________________ (finish)the wrk s far.Hw lng ________ yu (stay) at hme already?
haven’t finished
has been dead
9. I _____________ (nt read) the bk befre.10. He _______ just __________ (d) it.11. My sister (walk) t schl every day last year.12. We ________________ (have) an exam again smetime next week.13. By 2000, we ____________ (plant) 2000 trees.14. Lucy ___________ (g) t Shanghai. She ______ .(leave)this mrning. 15. Tm _____________ (buy) the bike fr 2 years.
had planted
haven’t read
She has been t Shanghai befre.
She has been in Shanghai fr ten years
He has gne t Shanghai.
He has studied English fr five years.
Have a try!
◆常与不确定的时间状语连用，如:already, never, ever, just, yet, befre, up t nw, s far, fr the last few weeks等,表示“到目前为止”所发生的动作.◆还可以和包括现在在内(到说话时仍未结束)的,表示一段时间的状语连用，如:nw, tday, this mrning (afternn, evening, week, mnth, year), these days, since, fr a lng time等.
一.表示从过去某一时刻开始并一直延续现在的动作或事情,但动作或事情现在已经结束。
Smene has just turned ff the light.有人刚把灯关了。
I have already finished my hmewrk.我已经完成了家庭作业。
二.表示从过去某一时刻开始并一直延续到现在的动作或事情,但动作或事情可能仍在继续。
I want t see hw much the place has changed since I saw it last. 我想看看从上次见到那地方以来它发生了多大变化。
I have learnt English fr mre than ten years.我已经学了10多年的英语。
三.表示人曾有过或到目前为止从未有过的经历.
Have yu ever been t the Summer Palace?你曾去过颐和园吗?
I have never had a car.我从未有过汽车。
四.现在完成时还常与句型 This is the first time...，It’s the first time...
This is the first time he has driven a car .这是他第一次开车。
五.现在完成时和最高级连用表示到现在为止是最…的。
What a bring film! 一部多么令人厌烦的电影啊！
It’s the mst bring film I’ve ever seen.这是我看过的最令人厌烦的电影。
现在完成时的知识点检查
1.He_______（write）the sentence (修理)yur bike yet?3.Cmputers___________(cme)int use______(近来) yu __________________(看展览) recently?N. Is it abut changes in Beijing ver the past______(世纪)?5.He______________________(忘记标题),hasn’t he?
has written
seen any exhibitins
has frgtten the title
★since短语或从句表示过去的动作延续至今，since之后的时间为一点。 Mr. Smith has wrked here since 1984. 1984年以来，史密斯先生一直在这工作。He’s learned abut 5,000 English wrds since he went t cllege.他上大学以来大约学了五千个英语单词。
★fr短语表示动作延续多长时间，fr的宾语为时间段。 1.We have knwn each ther fr twenty years. 我们认识有二十年了。2.I haven’t seen her fr a lng time.我好久没有见到她了。
选用 fr和 since填空:1.We haven’t seen each ther ______ a lng father has been in the Party ______ 10 years film has been n ______ 20 Green has wrked here ______ he came t grandparents have been dead ______ several years.6. It’s five years _______ we met last time.
fr后面应该接“段时间”；since后面应该接“点时间”或者“句子”。
关键点：1.since fr 主句都用现在完成时，主句动词为延续性引导的从句通常采用“一般过去时”
★just, recently是完成时的时间状语,just nw 有a mment ag 之意，是一般过去时的时间状语。The train has just arrived. 火车刚到。Did yu see Jan just nw? 你刚才看到琼了吗？Have yu heard frm yur family recently? 你最近收到家人的来信了吗？
1.I______(lse)my pen just nw. I______ just _____(lse)my pen .我刚才丢了钢笔2.She_____ just _________ (buy) a bk.She_______ (buy) a bk just nw.她刚才买了本书
★ever和never也是现在完成时常见的时间状语。前者意思是“曾经”，多见于疑问句或否定句中；后者意思是“从来没有”，表示全部否定。“Have yu ever seen the film?” “N. I have never seen it.”“你曾经看过这部影片吗？”“没有， 从来没看过。Nbdy in ur class has ever been there. 我们班没有人去过那。
★already和yet常见于现在完成时中，有“已经”之意。前者一般用在肯定句中，后者用在疑问句中。yet在否定句中有“还”之意。“Has the bus left yet”? “Yes. It has already left.” “N. It hasn’t left yet.“汽车开走了吗？” “是的，已经开走了。” “不，还没有开走。 ”
“already” 用于现在完成时的肯定句中, “yet” 用于现在完成时的否定句和疑问句中. 用“already” “yet”填空 He has ( ) visited many places in China. 注意 "already" 在句中的位置. The train hasn't arrived. 火车到现在还没有到。 Hasn't he cme ? 她还没来吗？
in the past few years 意思是“过去几年来”，可作现在完成时的时间状语；in the past意思是“在过去”，常作一般过去时的时间状语。Great changes have taken place in my hmetwn in the past few years.过去几年来，我的家乡发生了很大的变化。Where did yu wrk in the past? 你过去在哪里工作？
befre泛指“以前”时，可用于现在完成时中；ag表示“现在的一段时间以前”，是一般过去时的时间状语。I’ve never been t Japan befre. 我以前没去过日本。She went t Japan a year ag. 她一年前去了日本。
even since 、then与frm then n (after that)都有“打那以后”之意，前者是完成时的时间状语，后者常用作一般过去时的时间状语。She’s lived here ever since then. 打那以后，她一直住在这。I didn’t hear f Jim frm then n/after that. 打那以后，我就没有吉姆的消息。
动 词 填 空： 1._____ yu ________(clean) the rm? Yes, we __________(d) that already. When _______ yu ______(d) it? We _______(d) it an hur he ______(see) this film yet? Yes. When _____ he _____(see) it? He ______ it last week. 3. Hw many times _____yu______(be) there?
4. I __________ (read) the nvel twice. It’s interesting.5. She _________(g) t Pairs, hasn’t she? Yes. Hw ______ she _______(g) there? She _______(g) there by air.6. S far, many cuntries _______________(develp) their sftware Chen ______(give)up smking last Chen __________(give) up smking since last year.
have develped
1、了解一般过去时与现在完成时最基本的区别是
一般过去时强调动作发生的时间
现在完成时侧重动作的结果
2、牢记现在完成时不能与表示过去的时间连用， 包括疑问词when
3、知道现在完成时的两种特点 （1）：过去对现在 （瞬间性动词） （2）：过去到现在（延续性动词）
复习本课所学内容完成导学案中练习
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