Unit 4 Discover useful structures (ppt课件)-2023新人教版(2019)《高中英语》选择性必修第三册.pptx

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1、Discover useful structuresthe present perfect continuous tense To learn the present perfect continuous tense.To practice the present perfect continuous tense by completing some exercises.1Lead inLead inListen to an English song and try to fill in the blanks.I _ with a shadow overheadI _ with a cloud

2、 above my bedI have been lonely for so longTrapped in the past,I just cant seem to move onI _ all my hopes and dreams awayJust in case I ever need them again somedayI _ aside time to clear a little space in the corners of my mindhave been living have been sleepinghave been hidinghave been settingThe

3、 Present Perfect Continuous Tense2PresentationPresentationThe boy _(eat)since five minutes ago.has been eatingThe boy started eating five minutes ago.He is still eating now.Use the present perfect continuous tense to complete or translate the sentence.The man _(work)in the field for half an hour.has

4、 been workingThe man started working in the field half an hour ago.He is still working now.I have been learning English since I was 8 years old and I still love it.我从八岁起就开始学英语了,现在仍然很爱它。我从八岁起就开始学英语了,现在仍然很爱它。You have been making progress and I am proud of you!你一直在进步,我真为你感到骄傲。你一直在进步,我真为你感到骄傲。The little

5、 boy has been struggling to be attentive,but cant help falling asleep.小朋友一直努力在集中注意力,但还是情不自禁睡着了。小朋友一直努力在集中注意力,但还是情不自禁睡着了。It has been raining these days.这些天一直在下雨。这些天一直在下雨。2.I have been learning English since I was 8 years old and I still love it.3.You have been making progress and I am proud of you!4.

6、The little boy has been struggling to be attentive,but cant help falling asleep.1.It has been raining these days.现在完成进行时现在完成进行时Discover the definition现在完成进行时表示动作从过去过去某一时间开始,一直持续到现在现在,或者刚刚终止,或者可能还要继续进行继续进行下去。1.This is the adventure that I have been dreaming of.2.We are now camped on the rice and we h

7、ave been managing to survive,but spring is coming,and the ice will soon begin to melt.3.We have been struggling for days,but things on Elephant Island are going from bad to worse.4.She has been sleeping for 6 hours and still cant wake up.Discover the structure The Present Perfect Continuous Tense基本结

8、构:主语基本结构:主语+have/has been doingDiscover the usage We have been waiting for you for half an hour.Chinese have been making paper for two thousand years.动作发生在过去,刚终止,不再继续下去。动作发生在过去,刚终止,不再继续下去。动作发生在过去,还将继续下去。动作发生在过去,还将继续下去。PresentPastFuture1.All these days he has been writing articles to our magazine.2.J

9、ack has been phoning Jane every night for the last week.表示动作并不是一直不停地进行,而是在断断续续地表示动作并不是一直不停地进行,而是在断断续续地重复重复。3.Tom has always been working hard.4.What have you been doing to my dictionary?带有感情色彩,使语言表达更加生动。带有感情色彩,使语言表达更加生动。赞许的感情色彩赞许的感情色彩不满的感情色彩不满的感情色彩Summary:现在完成进行时的现在完成进行时的用法用法1.表示表示动作从过去某一时刻开始一直持续到现在

10、动作从过去某一时刻开始一直持续到现在,甚至,甚至将来将来,强调强调进行的过程进行的过程。2.表示表示从过去到现在的一段时间反复进行的动作或存在的状态从过去到现在的一段时间反复进行的动作或存在的状态。Look&discover:A private detective has been tailing(跟踪跟踪)him for several weeks.Tom loves outdoor activities-he has been fishing and hunting since he was a child.Summary:现在完成进行时常与现在完成进行时常与表示一段时间表示一段时间的状语

11、连用,例如:的状语连用,例如:all the time,several times,this week,all night/morning,these few days,over/in the past five years,for,since,等。等。常用常用的的时间状语时间状语现在完成时和现在完成进行时的比较 相同点:相同点:1.动作都发生在过去动作都发生在过去2.都与一段时间连用都与一段时间连用比较一:Li Jia _ (read)a book about psychology.(She finished reading the book.)Li Jia _(read)a book ab

12、out psychology.(She is still reading the book.)has read has been reading pastfuturenowread dohave read pastfuturenowread dohave been reading do现在完成时现在完成时现在完成进行时现在完成进行时动作刚结束;动作刚结束;强调影响或结果强调影响或结果动作还在延续;动作还在延续;强调动作的强调动作的延续性延续性 Julia has gone to the library.朱莉娅去图书馆了。(单个事件)Julia has been going to the lib

13、rary for a year.朱莉娅在一年间经常去图书馆。(重复事件)比较二:Tip 1:现在完成进行时可以表示动作的现在完成进行时可以表示动作的反复性反复性;现在完成时一般现在完成时一般不表示动作的反复。不表示动作的反复。比较三:Tip 3:现在完成进行时现在完成进行时比较生动,有时含有明显的比较生动,有时含有明显的感情色彩感情色彩(喜悦喜悦、愤怒愤怒、不满不满、厌恶厌恶等。),而,而现在完成时现在完成时往往平铺往往平铺直叙,只说明一个直叙,只说明一个事实事实,一种,一种影响影响或或结果结果。I have waited for you for two hours.I have been w

14、aiting for you for two hours.以下几类动词不能用于现在完成进行时:表示感官、感觉:see,hear,smell 等;表示爱憎:love,prefer,mind 等;表示希望、意愿:wish,want,desire 等;表示相信、猜想:believe,think,suppose 等;非延续性动词。John has loved Mary since ten years ago.比较四:下列句型中常用现在完成时 比较五:Its the first time that I have been to the Great Wall.This is the most intere

15、sting film that I have seen.不用于进行时态的动词通常也不用于现在完成进行时,不用于进行时态的动词通常也不用于现在完成进行时,但它们可以用于现在完成时。但它们可以用于现在完成时。The war has lasted for a long time.现在完成进行时不用于被动语态。若要用,可用现在完现在完成进行时不用于被动语态。若要用,可用现在完成时的被动语态代替。成时的被动语态代替。The house has been painted for a month.比较六3Review1.现在完成进行时的现在完成进行时的构成构成:have/has+been+doing2.现在

16、完成进行时的现在完成进行时的基本概念基本概念:表示表示动作从过去某一时间开始一直动作从过去某一时间开始一直持续到现在持续到现在,这个动作可能,这个动作可能刚终止刚终止,也可能,也可能还在进行还在进行。3.现在完成进行时的现在完成进行时的常用时间状语常用时间状语:all the time,this week,all night,these few days,for,since等。等。4.现在完成时和现在完成进行时的现在完成时和现在完成进行时的区别区别:动作是否有动作是否有延续性延续性 是否表示动作是否表示动作重复性重复性 是否有是否有感情色彩感情色彩4PracticePractice1.She(

17、lose)her keys.She cant find them anywhere.2.I _(write)the book,but I still _(finish)it.3.She (recite)the words all the evening.4.We _(look)forward to our summer vacation.5.Jasons only recreation is painting.He _(learn)how to paint for over five years.has losthave been writing havent finished has bee

18、n reciting have been looking has been learning 单句填空单句填空6.It _ (rain)for a week.How long do you think it will last?7.Up to now,the gifted child (win)three national prizes in music.8.It is the first time that she (read)such an interesting book.9.For the whole morning,the board of directors _(discuss)t

19、he resolution to increase wages in the coming year.10.I (tell)her many times,but she still makes the same mistake.has been raininghas wonhas readhave been discussinghave told1.2020 天津卷-You are a great swimmer.-Thanks.Its because I _ (practise)a lot these days.2.2019 北京卷 A retired engineer,76-year-ol

20、d Wilson _(offer)free rides to college students for the past eight years.3.2018 全国卷 Languages_(come and go)for thousands of years,but in recent times there has been less coming and a lot more going.4.(2021 全国乙卷)People _(pour)into stadiums since the days of ancient Greece.has been offering have been

21、coming and going have been practising高考对接高考对接have been pouring5.(2021 全国乙卷)For the biggest stadiums in the world,we _(use)data supplied by the World Atlas list so far,which _(rank)them by their stated permanent capacity,as well as updated information from official stadium websites.6.江西卷-Tony,why are

22、 your eyes red?-I _(cut)up peppers for the last five minutes.7.湖南卷 Since the time humankind started gardening,we (try)to make our environment more beautiful.have usedrankshave been cuttinghave been trying Food supplies in the flood-stricken area _(run)out.We must act immediately before theres none l

23、eft.Up to now,the program _(save)thousands of children who would otherwise have died.It _(report)that many a new house _(rebuild)at present in the disaster area.Police _(search)for a woman now who is reported to _ (miss)since the flood _(hit)the area last Friday.are runninghas savedis reportedis bei

24、ng rebuiltare searchinghave been missinghit 语篇填空 A big elephant was walking on the ground.He 1._(move)through the tall grass for two days,eating and resting.Not far from him 2._(stand)a woman with a big camera in her hands.She took another photo of the elephant,still amazed at his long tusks(獠牙).Swa

25、llowing a mouthful of grass,the elephant turned his head to see that the woman 3._(take)even more photos of him.“That woman has no manners.She 4._(follow)me all day,”he thought.“She 5._(take)100 photos of me and 6._(write)42 pages of notes.But she hasnt even given me a single peanut!”had been moving

26、stoodwas takinghas been followinghas takenwritten5Homework1.Finish Exercise 2&3 on Page 41.2.Finish Exercise on the Reference book.3.Draw a mindmap of the present perfect continuous tense.6ConsolidationRead each situation and rewrite each sentence using the present perfect continuous tense.P41 21.Th

27、e dog started to bark about two hours ago.I really hope it will stop soon.2.Steve started to play rugby at the age of eight.Now he has become a professional player.3.Timmy is holding a table tennis bat and his short hair is damp with sweat.He looks a little tired after playing table tennis for two h

28、ours.The dog has been barking for about two hours.Steve has been playing rugby since the age of eight.He looks a little tired because he has been playing table tennis for two hours.4.Diane hasnt got much sleep this week.She looks terrible today.5.I tried to phone you this morning.I must have tried a

29、 dozen times before I caught you here.Diane hasnt been sleeping well this week.I have been trying to phone you this morning.1.For the whole morning,the board of the directors _ (discuss)the resolution to increase wages in the coming year.2.Jasons only recreation is painting.He _(learn)how to paint f

30、or over five years.3.Even though we lost the game,we should be proud of ourselves because we _(try)our best and _(work)as a team.4.He finally _(finish)the research paper under his tutors guidance.5.My nephew Sam _ (collect)comic books since he was five.Now he has more than two hundred of them.6.The company _(launch)an advertising campaign to promote its corporate image.has been discussinghas been learninghave been tryingworkingfinishedhas been collectingis launching/has launched/launchedComplete the sentences below using the correct tenses of the verbs in brackets.P41 3ThanksThanks

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