Unit 4 Learning about language Discover useful structures 课件-高中英语人教版（2019）选择性必修第三册.pptx

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1、人教版（2019）英语 选择性必修三Unit 4 ADVERSITY AND COURAGEDiscovering the rules目录目录Discovering the rules01Studying the rules02Applying the rules03Exercise04Whatisthetenseofthesentencebelow?This is the adventure that I have been dreaming of.Findmoreexamplescontainingthistense:1.We are now camped on the ice and w

2、e have been managing to survive,but spring is coming,and the ice will soon begin to melt.2.We have been struggling for days,but things on Elephant Island are going from bad to worse.Question:whatisthefunctionofthe present perfect continuous tense?1.to talk about action that started in the past and s

3、topped recently.There is usually a result now.2.to talk about action that started in the past and is continuing now.This is often used with for or since.key:the present perfect continuous tense.Discovering the rules01现在完成进行时表示现在完成进行时表示动作从过去某一时间开始一直持续到现动作从过去某一时间开始一直持续到现在在，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

4、在进行还在进行。肯定句：主语+have/has+been+现在分词.否定句：主语+have/has+not+been+现在分词.疑问句：Have/Has+主语+been+现在分词.?疑问代词/疑问副词+have/has+（主语+）been+现在分词.?Ivebeentryingto find out her telephone number.我一直在查问她的电话号码。They havebeenwideningthe road.他们在拓宽这条路。基本概念基本概念Studying the rules02现在完成进行时的用法1）表示过去发生并持续到现在的动作How long haveyou been

5、learningEnglish?你学习英语多久了？She hasbeenburningthe midnight oil to prepare for GRE recently.她最近在熬夜准备研究生入学资格考试。Tom hasbeenplayingthe online games for more than twenty hours.汤姆玩网游已经超过二十个小时了。His brother hasbeenwritingthis novel since last year.他哥哥从去年起就一直在写这本小说。2）表示到目前为止的一段时间内重复进行的活动I havebeentellingyou not

6、 to make trouble.我一直劝你不要找麻烦。The old man hasbeenrepairingcars for thirty years.这个老人修汽车修了三十年了。Jack hasbeenpractisingTai Chi for more than a year.杰克练太极一年多了。Studying the rules02（3）表示根据直接或间接的证据而得出结论His eyes are red.He hasbeenworkingtoo hard recently.他的眼睛红了，准是他最近工作太辛苦了。I have got a headache.我头痛。No wonder.

7、You havebeenworkingin front of that computer too long.不足为奇。你在那台电脑前工作太久了。Im sure Andrew will win first prize in the final.我相信安德鲁在决赛中会得第一名。I think so.He hasbeenpreparingfor it for months.（4）表达某种感情色彩:现在完成进行时有时带有强烈的表扬或厌恶等感情色彩。Wevebeenlookingforward to our summer vacation.我们一直盼望着暑假。Too much hasbeenhappen

8、ingtoday.今天真是一个多事的日子。Studying the rules02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。Studying the rules02学法点拨1.在不同时间状语的情况下，在不同时间状语的情况下，现在完成进行时现在完成进行时的的动作不一定已经动作不一定已经完成完成，很可能持续下去，而，很可能持续下去，而现在完成时现在完成时一般表示动作已经完成。一

9、般表示动作已经完成。即现在完成进行时即现在完成进行时强调动作的延续性强调动作的延续性，而现在完成时，而现在完成时强调动作强调动作的结果的结果。Ivebeendesigningsolarracingcars.Ivedesignedfiveorsixdifferentcars.我一直在设计太阳能赛车。我一直在设计太阳能赛车。我已经设计五六辆小汽车了。我已经设计五六辆小汽车了。现在完成进行时和现在完成进行时和现在完成时的区别现在完成时的区别Studying the rules02Ivebeentakingpartinracesforfouryears.Howmanyraceshaveyoutaken

10、partin?我这四年一直在参加比赛。我这四年一直在参加比赛。你参加多少场比赛了你参加多少场比赛了?2.现在完成进行时现在完成进行时往往表示动作在重复往往表示动作在重复，而现在完成时一般而现在完成时一般不表示动作的重复不表示动作的重复。Studying the rules02RecentlyMaryhasbeendoingsportsregularly.RecentlyMaryhasdonehersportsregularly.最近玛丽一直定期做运动。最近玛丽一直定期做运动。(有表扬意味有表扬意味)最近玛丽定期做运动。最近玛丽定期做运动。(只说明一个事实只说明一个事实)3.现在完成进行时现在完

11、成进行时与所有进行时态一样与所有进行时态一样带有感情色彩带有感情色彩，可使表达显得生动，而可使表达显得生动，而现在完成时现在完成时往往只表明一个事往往只表明一个事实、一种影响或结果，实、一种影响或结果，不带感情色彩不带感情色彩。Studying the rules02Discover useful structuresSteve has been playing rugby since the age of eight.Now he has become a professional player.He looks a little tired because he has been play

12、ing table tennis for two hours.Diane hasnt been sleeping well this week.She looks terrible today.I have been trying to phone you this morning.I must have tried a dozen times before I caught you here.Studying the rules02Discover useful structureshas been discussinghas been discussinghas been learning

13、has been learningtriedtriedworkedworkedfinishedfinishedhas been collectinghas been collectingis launching has launched launchedis launching has launched launchedStudying the rules02lDo you have any hobbies or interests?lHow long have you been learning/playing?lWhat have you been doing recently?Apply

14、ing the rules03A:Doyouhaveanyhobbies?B:Sure.Ihaveseveralhobbiessuchastabletennis,photography,andkiteflying.Butmyfavouritehobbyisplayingtheguitar.A:Howlonghaveyoubeenlearningtheguitar?B:IhavebeenlearningtheguitarsinceIwaseightyearsold.IsawavideoofsomeoneplayingandIfellinlovewithit.A:Thatsgreat.Applyi

15、ng the rules03ExerciseExercise实战高考实战高考1.2020天津卷天津卷-Youareagreatswimmer.-Thanks.ItsbecauseI_alotthesedays.A.havebeenprctisingB.waspractisingC.wouldpractiseD.hadpractised【解析】考察时态。【解析】考察时态。句意：句意：-你游泳很棒。你游泳很棒。-谢谢。这是因为这些天我一直在练习。根谢谢。这是因为这些天我一直在练习。根据时间状语据时间状语thesedays(这些天这些天)可知，可知，“练习游泳练习游泳”从数天前开始，一从数天前开始，

16、一直持续到现在。直持续到现在。因此该句应用现在完成进行时态。故选因此该句应用现在完成进行时态。故选A。Exercise042.2019北京卷北京卷Aretiredengineer,76-year-oldWilson_(offer)freeridestocollegestudentsforthepasteightyears.3.2018全国全国卷卷Languages_(comeandgo)forthousandsofyears,butinrecenttimestherehasbeenlesscomingandalotmoregoing.hasbeenofferinghasbeencomingandgoingExercise04Thank youThank you！