新人教版英语Grammar课件选修8.ppt（纯ppt,可能不含音视频素材文件）

1、Unit 5 Grammar Unit 5 Grammar Revise the verb tenses Revise the verb tenses(Present Perfect(Present Perfect Continuous Tense)Continuous Tense)ObjectiveTo revise the present perfect continuous tense and use it properly.语法讲解建议采用归纳法，如语法讲解建议采用归纳法，如尽可能多的呈现一些相关例句，尽可能多的呈现一些相关例句，或可让学生从已学课文中找相或可让学生从已学课文中找相应例

2、句，引导学生试着从所观应例句，引导学生试着从所观察到的语言现象中总结出语言察到的语言现象中总结出语言规则和语法规律。规则和语法规律。Look at the following sentences.1.Ive been waiting for you for a long time!(必修必修3)2.Recently,however,scientists have been finding that long-term use of these fertilizers can cause damage to the land and,even more dangerous,to peoples

3、health.(必修必修4)3.We have just moved into a new house and I have been working hard all morning.I have been trying to get my new room in order.(新概念新概念2 L52)4.Since then,they have been trying to find out how the fire began.(新概念新概念2 L53)5.The whole village has been working day and night gathering and thr

4、eshing this years crop before the September rains.(新概念新概念2 L76)1.Weve been excavating here for many years and 2.We have been excavating layers of ash almost six metres thick,3.Well,weve been finding the bones of tigers and bears in the caves,and we think these were their most dangerous enemies.Sente

5、nces from this unit:to test your sense of observationto test your ability of short-term memory to test your ability to highlight the language pointsGuess1.I _ for you for a long time!2.Recently,however,scientists _ _ that long-term use of these fertilizers can cause damage to the land and,even more

6、dangerous,to peoples health.3.We have just moved into a new house and I _ hard all morning.I _ to get my new room in order.4.Since then,they _ to find out how the fire began.ve been waiting have been findinghave been workinghave been tryinghave been trying5.The whole village _ day and night gatherin

7、g and threshing this years crop before the September rains.6.We _ here for many years and 7.We _ layers of ash almost six metres thick,8.Well,we _ the bones of tigers and bears in the caves,and we think these were their most dangerous enemies.has been workingve been excavatinghave been excavatingve

8、been finding1.Hi,Tracy,you look tired.Im tired.I _ in the living room all day.A.painted B.had painted C.have been painting D.have painted 2.There is so much snow these days,isnt there?Yes,it _ for a few days.A.was snowing B.has been snowing C.had been snowing D.snowed3.Although these scientists _ on

9、 the project for nearly four years,I dont know how long it will last.A.have been working B.had worked C.were working D.are working 4.Now that she is out of job,Lucy _ going back to school,but she hasnt decided yet.A.had considered B.has been considering C.considered D.is going to consider5.The littl

10、e boy is dirty from head to foot because he _ in the mud all morning.A.has played B.is playing C.has been playing D.was playingLook at the pictures below and make sentences according to the time given.The baby has been sleeping for one hour.They have been playing basketball since ten past ten.The bo

11、y has been reading a book for almost two hours.They have been playing games in the school for almost an hour.Play gamesPlay gamesThe young boy has been watching TV for almost two hours.20:00The telephone has been ringing for almost a minute.The sound has continued about one minute.The telephone is r

12、inging.7:10You are here!I have been looking for you everywhere.以上我们已经通过归纳总结和练以上我们已经通过归纳总结和练习对本课的语法内容有了一定的习对本课的语法内容有了一定的了解，下面就让我们根据了解，下面就让我们根据之前练习的考察情之前练习的考察情况进一步选择讲解况进一步选择讲解该语法项的重难点。该语法项的重难点。现在完成进行时现在完成进行时:基本用法基本用法 1)强调动作的持续性。强调动作的持续性。The telephone has been ringing for almost a minute.Why hasnt anyo

13、ne answered it?电话响了差不多一分钟，为什么没人接电话响了差不多一分钟，为什么没人接?Present Perfect Continuous TensePresent Perfect Continuous Tense 2)表重复。叙述从过去某时到现在或最表重复。叙述从过去某时到现在或最近一直重复的动作。近一直重复的动作。The weather has been changeable lately;Ive been having a lot of colds.最近天气变化无常，我时常感冒。最近天气变化无常，我时常感冒。3)有感情色彩。如：有感情色彩。如：Too much has be

14、en happening today.今天真是一个多事之日。今天真是一个多事之日。现在完成进行时和现在完成时的比较现在完成进行时和现在完成时的比较:A.未完结性未完结性 Ive cleaned the windows.我把窗户擦干净了。我把窗户擦干净了。Ive been cleaning the windows.我擦窗户来着。我擦窗户来着。(可能窗户尚未擦完可能窗户尚未擦完)B.短暂性短暂性 现在完成时与现在完成进行时都可以表现在完成时与现在完成进行时都可以表示延续至今的状态，但完成进行时常表示延续至今的状态，但完成进行时常表示短暂性。示短暂性。A.They have lived in New

15、 York.B.They have been living in New York.句句A具有长期性，而句具有长期性，而句B具有短暂性。具有短暂性。C.刚完结性刚完结性 与现在完成时相比，现在完成进行时有与现在完成时相比，现在完成进行时有时可以表示刚刚完结的动作。有时它是时可以表示刚刚完结的动作。有时它是现在事件的直接原因，或者是得出结论现在事件的直接原因，或者是得出结论的证据。如的证据。如:My hands are dirty.Ive been painting the car.我的手很脏，我在油汽车来着。我的手很脏，我在油汽车来着。Your eyes are red and puffy.H

16、ave you been crying?你的眼睛又红又肿，你是不是哭来着？你的眼睛又红又肿，你是不是哭来着？D.连续性或重复性连续性或重复性 现在完成进行时常常用于表示延续至现在完成进行时常常用于表示延续至今的连续性或重复性动作。如：今的连续性或重复性动作。如：She has been playing tennis since she was eight.All these days he has been writing articles to our magazine.结论结论:现在完成进行时主要用于表示现在完成进行时主要用于表示 A.过去开始而且现在仍在进行的动作过去开始而且现在仍在进行

17、的动作;B.过去开始，现在刚刚停止的动作过去开始，现在刚刚停止的动作;C.现在看到其直接结果的动作。现在看到其直接结果的动作。现在完成时主要用于表示已经完成的动现在完成时主要用于表示已经完成的动作及其与现在的关系。作及其与现在的关系。Review现在完成进行时，其构成为：主语现在完成进行时，其构成为：主语+助动词助动词(have/has)+been+动词的现在动词的现在分词分词+其他成分。其他成分。其表达的意思有两种：其表达的意思有两种：1.表示从过去表示从过去某时开始一直持续到现在的动作，并某时开始一直持续到现在的动作，并且还将持续下去。且还将持续下去。2.表示在说话时刻表示在说话时刻之前到

18、现在正在进行的动作。之前到现在正在进行的动作。Individual activity注注:另附另附 word word 文档。文档。点击此处链接点击此处链接1.I have got a headache.No wonder.You _ in front of that computer too long.(2007江西江西)A.work B.are working C.have been working D.workedI.Choose the best answer.2.Cathy is taking notes of the grammatical rules in class at Su

19、nshine School,where she _ English for a year.(2007湖南湖南)A.studies B.studied C.is studying D.has been studying 3.Im sure Andrew will win the first prize in the final.I think so.He _ for it for months.(2008江苏江苏)A.is preparing B.was preparing C.had been preparing D.has been preparing4.Excuse me,Marcia,a

20、 reporter from Vanity Fair _ all day.Could you speak to her now?(2009辽宁辽宁)A.phones B.has phoned C.has been phoning D.phoned 5.The number of foreign students attending Chinese universities _ rising steadily since 1990.(2009山东山东)A.is B.are C.has been D.have been 6.Over the past decades,sea ice _ in th

21、e Arctic as a result of global warming.(2009浙江浙江)A.had decreased B.decreased C.has been decreasing D.is decreasing7.Weve spent too much money recently.Well,it isnt surprising.Our friends and relatives _ around all the time.(2010安徽安徽)A.are coming B.had come C.were coming D.have been coming 8.Why,Jack

22、,you look so tired!Well,I _ the house and I must finish the work tomorrow.(2010江苏江苏)A.was painting B.will be painting C.have painted D.have been painting9.Why do you want to work for our company?This is the job that I _ for.(2010重庆重庆)A.looked B.am to look C.had looked D.have been looking10.We _ on t

23、his project for four hours.Lets have a rest.(2010天津天津)A.are working B.have been working C.worked D.had worked11.Im sure you will do better in the test because you _ so hard this year.(2011上海春上海春)A.studied B.had studied C.will study D.have been studying 12.Tom _ in the library every night over the la

24、st three months.(2011北京北京)A.works B.worked C.has been working D.had been working13.The manager _ the workers how to improve the program since 9 am.(2012全国全国II)A.has told B.is telling C.has been telling D.will have told14.In order to find the missing child,villagers _ all they can over the past five

25、hours.(2012安徽安徽)A.did B.do C.had done D.have been doing 15.The girl has a great interest in sport and _ badminton classes twice a week over the last three years.(2013福建福建)A.took B.is taking C.takes D.has been taking 1.A:I am sorry I _(keep)you waiting so long.B:It is all right.I _(read)the newspaper

26、s.2.The CCTV _ (broadcast)English programmes ever since 1977.II.Fill in the blanks.have kepthave been readinghas been broadcasting3.You _(feel)better when you _(take)the medicine.4.Please wake me up if I _ still _ (sleep)when you _(come).5.My sister _(learn)English since she _(be)a child.She _(speak

27、)English fluently now.will feelhave takenamsleepingcomehas been learningwasspeaks6.My uncle _(come)to see us.He _(arrive)here a few days ago.I _(start)for Sydney tomorrow morning.7.He _(break)his glasses when he _(play)in a football match.has comearrivedwill startbrokewas playingIII.阅读短文，按照句子结构的语法性阅

28、读短文，按照句子结构的语法性 和上下文连贯的要求，根据提示用和上下文连贯的要求，根据提示用 恰当的时态填空。恰当的时态填空。To end our special news bulletin(新闻新闻简报简报),said the voice of the television announcer,were going over to the macaroni(通心粉通心粉)fields of Calabria.Macaroni _(grow)in this area for over six hundred years.has been grownTwo of the leading(主要的主要

29、的)growers,Giuseppe Moldova and Riccardo Brabante,tell me that they _(expect)a splendid(极好的极好的)crop(产量产量)this year and harvesting _(begin)earlier than usual.Here you can see two workers who,between them,_(finish)cutting three cartloads(一车的载量一车的载量)of golden brown macaroni stalks(茎秆茎秆).have been expect

30、inghas begunhave finishedThe whole village _(work)day and night gathering and threshing this years crop before the September rains.On the right,you can see Mrs.Brabante herself.She _(help)her husband for thirty years now.Mrs.Brabante _(talk)to the manager of the local factory where the crop is proce

31、ssed(加工加工).has been working has been helpingis talkingThis last scene shows you what will happen at the end of the harvest:the famous Calabrian macaroni-eating competition!Signor Fratelli,the present champion,_(win)it every year since 1991.And that ends our special bulletin for today,Thursday,April lst.Were now going back to the studio.has won