Unit4AdversityandCourageDiscoverusefulstructures课件-高中英语人教版选择性

DiscoveringUsefulStructuresUNIT4ADVERSITYANDCOURAGELead-in——ListentoanEnglishsongandtrytofillintheblanks.I__________________withashadowoverheadI

__________________

with

a

cloud

above

my

bedIhavebeenlonelyforsolongTrappedinthepast,Ijustcan’tseemtomoveonI__________________allmyhopesanddreamsawayJustincaseIeverneedthemagainsomedayI__________________asidetimetoclearalittlespaceinthecornersofmymind……havebeenlivinghavebeensleepinghavebeenhidinghavebeensettingThePresentPerfectContinuousTenseTimeadverbialContentsThestructureofthepresentperfectcontinuoustenseThreeusagesofthepresentperfectcontinuoustense①Indeed,thankstothegoodideasoflotsofpeople，manypeoplearoundtheworldhave

been

enjoyingcitycentrestreetswithoutcarsformanyyears.②Hehas

been

fightingwithafriendrecently.③Ihave

been

lookingforajobforthreemonths.④Ihave

been

writinglettersallthiseveningandI’vejustfinishedthem.⑤Youhaven’t

been

doingyourhomeworkthosedays.⑥Toomuchhas

been

happeningtoday.Observeanddiscover—ThestructureSummarize：（1）现在完成进行时的构成：肯定形式

ave/hasbeendoing

（句①②③④⑥）；否定形式

have/hasnotbeendoi

（句⑤）。

（2）现在完成进行时表示动作开始于过去，并一直持续到现在，动作有可能继续进行下去，也可能

刚刚结束⁠

（句④）。（3）现在完成进行时也可以

带有某种感情色彩⁠

（句⑥）。have/hasbeendoing

have/hasnotbeendoing

刚刚结束带有某种感情色彩1.Wehavebeenwaitingforyouforhalfanhour.2.TheChinesehavebeenmakingpaperfortwothousandyears.3.IhavebeenlearningEnglishsincethreeyearsago.①现在完成进行时态表示动作还未结束，还要继续

下去。其动作是否继续下去，则由上下文而定。这个时态多用于

动词，如live,learn,lie,stay,sit,wait,stand,rest,study等。持续延续性Threeusagesofthepresentperfectcontinuoustense（1）动作还将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。补充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。1.Allthesedayshehasbeenwritingarticlestoourmagazine.2.He

hasbeenpromisingtohelpyou.Hasn’thedoneit?3.I_______________(take)partinracesforaboutfouryears.4.Jack_______________(phone)Janeeverynightforthelastweek.②表示动作并不是一直不停地进行，而是在断断续续地

。havebeentakinghasbeenphoning重复Threeusagesofthepresentperfectcontinuoustense（2）1.Tomhasalwaysbeenworkinghard.2.Youhavebeencoughingalotlately!3.Whathaveyoubeendoingtomydictionary?③带有

，使语言表达更加生动。Whatkindofemotiondoesthewriterexpressinthesesentences?赞许关切不满感情色彩Threeusagesofthepresentperfectcontinuoustense（3）⁠

⁠完成句子

①She

hasalwaysbeenworkinghard

⁠recently.

最近她工作一直很努力。②Hereyesarered.It’sobviousthatshe

hasbeencrying

⁠foralongtime.

她的眼睛红红的，显然她哭了很长时间。③It

hasbeensnowing

⁠sincelastSunday.

从上星期天开始就一直在下雪。④Yourclothesarecoveredwithdust.You

havebeencleaningtheclassroom

⁠，Ithink.

你的衣服满是灰尘，我想你一直在打扫教室吧。⑤Mysister

hasbeenlearningEnglish

⁠since2016.

自从2016年以来，我姐姐一直在学英语。hasalwaysbeenworkinghard

hasbeencrying

hasbeensnowing

classroom

havebeencleaningthehasbeenlearningEnglish

③Ihavebeenvisitingmyhometownrecently,anditimpressesmedifferentlyeachtime.④Ihavevisitedmyhometownrecently,whosechangeshaveleftadeepimpressiononme.A:比较句子①②，___________________强调动作未完成(一直)；而___________________强调动作已经结束(已经)。has\havebeendoinghas\havedoneB:比较句子③④，_________________强调动作的重复，___________可以表示一次性动作。has\havebeendoinghas\havedoneC:比较句子⑤⑥，____________________表示一种感情色彩；_____________则陈述一种事实。⑤Recentlyshehasalwaysbeenhelpingme.⑥Recentlyshehashelpedmealot.has\havebeendoinghas\havedoneD:比较句子⑦⑧_____________________强调动作行为的结果、影响，而_______________________只强调动作行为本身。⑦Therepairmanhasbeenrepairingthecaralltheafternoon.⑧Therepairmanhasrepairedyourcar,andyoucanhaveitnow.has\havebeendoinghas\havedone⁠

⁠用所给词的适当形式填空①Althoughmanymeasures

havebeentaken

⁠

（take），theworld’seconomyisstillgoingdown.

②Youshouldgotobed.You

havebeenwatching

⁠

（watch）TVfor5hours.

③I

havebeencleaning

⁠

（clean）thewindowssincethismorning.

④Sorry，butMrSmith

hasleft

⁠

（leave）forBeijing.

⑤Thelittleboyisdirtyfromheadtofootbecausehe

hasbeenplaying

⁠

（play）inthemudallthemorning.

⑥Bythetimeherealiseshe

haswalked

⁠

（walk）intoatrap，it’llbetoolateforhimtodoanythingaboutit.

havebeentaken

havebeenwatching

havebeencleaning

hasleft

hasbeenplaying

haswalked

since/by+过去时间点before+现在时间点for+时间段thesedaysinthepastfewdays/months/years最近：latelyrecently已经：already到目前为止：yet,sofar,uptonow/till,bythetimeof+时间点现在完成时常用的时间状语现在完成进行时+表示“持续”的时间状语：allthetime,thisweek/month,allnight/morning，severaltimes，

for…,since…TimeadverbialSummary现在完成进行时结构用法时间状语现在完成时和现在完成进行时的区别have/has+been+doing1.表示动作从过去某一时刻开始一直持续到现在，甚至将来，强调进行的过程。2.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。allthetimethisweekallnightthesefewdaysfor…,since…动作延续性/完成？动作重复/一次性结果/行为本身有无感情3.表示感情色彩Readeachsituationandrewriteeachsentenceusingthepresentperfectcontinuoustense.（P41）

Thedoghasbeenbarkingforabouttwohours.

狗一直犬吠了大约两个小时。Stevehasbeenplayingrugbysincetheageof

eight.史蒂夫自八岁以来一直打橄榄球。3.Timmyisholdingatabletennisbatandhisshorthairisdampwithsweat.Helooksalittletiredafterplayingtabletennisfortwohours.___________________________________________________________________________________________________________________________________4.

Dianehasn'tgotmuchsleepthisweek.Shelooksterribletoday.

_______________________________________________________________________________