Unit 2 Home Sweet Home Section A (3a-3c)课件 人教版英语八年级上册

Unit2HomeSweetHomeSectionAWhatcanyoudoforyourhome?

(3a-3c)

进一步梳理、归纳用"Can/Couldyou...?"提出请求和"Can/CouldI...?"请求许可的句型结构，理解两者在语气和使用场景上的区别。在具体语境中，对请求和许可做出恰当回应（如肯定回答"Sure./Noproblem."或否定回答"Sorry,Ican't..."）。能在实际场景中（如求助、借物品等）灵活运用所归纳结构性知识进行礼貌交流。LearninggoalsTranslate等不及做某事帮助某人做某事

在墙上为某人买某物在......前面没问题让人感到宾至如归把...加入...1.can'twaittodosth.2.helpsb.dosth.3.onthewall

4.buysth.forsb.

5.infrontof

6.noproblem

7.makesb.feelathome

8.addsth.tosth.

Askandanswerinpairschores:feedthefishpackupthingssweepthefloorhangupphotoscleanthebathroomswaterplantswalkthedogmakethebeddothedishesA：Whatchorescanyoudo?B:Icanfeedthefish

Review2aandsayWhenJim’sparentswantstheirchildrentohelpthem,whatdoeshe\shesay?Jim,canyouhelpmehanguptheclockonthewall?Helen,couldyoumovethischairtotheirroom?Peter,canyouhelpmecleanuptheirroom?can\couldforpoliterequestsReadandsumup

can\couldforpolite_________Couldwekeepsomefishhere?CanIgrowsomeflowersthere?CanIhangoutwithmyfriendsafterlunch?permissionCouldyou

please

sweep

the

floor?Yes,Dad.I’lldoitatonce.CouldIhangoutwithmyfriendsafterlunch?Sorry,Jim,butyouhavetopackupyourthingsfirst.CanIputsomeflowersonthetable?Yes,goodidea!Canyouhelpmehangupthephotos?Sure./Noproblem!Readthequestionswithcanorcould.NoticehowtheyansweredCouldyou

please

sweep

the

floor?Yes,Dad.I’lldoitatonce.CouldIhangoutwithmyfriendsafterlunch?Sorry,Jim,butyouhavetopackupyourthingsfirst.CanIputsomeflowersonthetable?Yes,goodidea!Canyouhelpmehangupthephotos?Sure./Noproblem!WriteRforrequestsorPforpermissionnexttoeachquestion.R

P

P

R

can\couldquestionsresponseresponseforpoliterequestsCanyoutakecareofthemeveryday？Couldyoupleasehelpmehangupthephotos?Couldyoupleasesweepthefloor?Sorry,Ihaveto…forpermissionCouldwekeepsomefishhere?CanIgrowsomeflowersthere?canIhangoutwithmyfriendsafterlunch?Yes,youcan.OK.Sorry,youhaveto…Yes.\OK.Sure.\Ofcourse.Sumup情态动词can\could情态动词can表示能力，意为“能，会”Canyouswim？你会游泳吗？can是情态动词，没有人称和数的变化，但有时态的变化，它的过去式为could，其后可直接接动词原形注意事项-情态动词could作为can的过去式时，表示过去的能力和可能性，其否定形式为couldnot，可缩写为couldn’t含义用法

对提出请求或征询许可的句型做否定回答时，通常以sorry或I’msorry开头表示许可，意为“可以”，相当于may(比may更口语化，may较正式)。Canyouhelpme？你能帮我吗？

情态动词could可用于礼貌地提出要求或征询许可，此时并非can的过去肯定回答：Ofcourse./Certainly./OK./Sure./Noproblem.等否定回答：Sorry./Certainlynot./I’mafraidIcan’t./No,youcan’t等.+说明理由式用于提出邀请。对其作肯定回答通常用“Sure./Ofcourse./Certainly./Yes，I'dlove(like)to.”等，作否定回答通常用“Sorry/No，Ican't.”等。情态动词couldGrammar1.can是情态动词，没有人称和数的变化，但有时态的变化，它的过去式为could，其后可直接接动词原形，其用法如下：情态动词can的用法1)表示能力，意为“能，会”。Canyouanswerthequestion？你能回答这个问题吗？(2)表示许可，意为“可以”，相当于may(比may更口语化，may较正式)。此外，could也可以表示许可，语气更加委婉。Couldyouhelpmefindit？你能帮我找到它吗？(3)用于提出邀请。对其作肯定回答通常用“Sure./Ofcourse./Certainly./Yes，I'dlove(like)to.”等，作否定回答通常用“Sorry/No，Ican't.”等。—Canhecometomyparty？他能来参加我的宴会吗？—Yes.He'dloveto.是的。他很乐意。

can句式变化can句式变化(1)在变否定句时，直接在后面加上“not”，写作can't或cannot。如：IcanspeakFrench.我会讲法语。→Ican'tspeakFrench.我不会讲法语。(2)在变一般疑问句时，can直接移到主语前(原主语的首字母改成小写，第一人称应变为第二人称)即可。如：Icanplaythepiano.我会弹钢琴。→Canyouplaythepiano？你会弹钢琴吗？其肯定回答可用yes，OK或ofcourse等；否定回答可用no或sorry等。如：—Canyoulookaftermybooks，please？你能照看一下我的书吗？—OK.可以。

情态动词could的用法情态动词could作为can的过去式时，表示过去的能力和可能性，其否定形式为couldnot，可缩写为couldn’t,其用法如下：（1）情态动词could可用于礼貌地提出要求,此时并非can的过去式Couldyoupleasetakethedogforawalk?请你去遛遛狗好吗？（2）could可用于征询许可，此时并非can的过去式CouldIgooutfordinnerwithmyfriends?我能和朋友一起出去吃（晚）饭吗？3.注意事项1.对提出请求或征询许可的句型做否定回答时，通常以sorry或I’msorry开头。Eg.—CouldyouhelpmewithmyEnglishnow?你现在能帮我学英语吗？

—I’msorry,butIhaveafootballmatchtenminuteslater.抱歉，我十分钟后要参加一场足球赛。2.如果问句中使用could，回答时要用can或can’t，不能用could或couldn’t。Eg.—CouldIuseyourbike?我能用一下你的自行车吗？

—Sure,youcan.当然可以。Choosethebestquestiontocompleteeachconversation.A.Couldyougivemearidetotownnow?B.CanIstayoutuntileleven?C.Mr.Lake,couldIgotothetoilet?D.CouldIuseyourcomputer?A：________________________B:Ofcourseyoucan.A：________________________B:Yes,ifyouarecarefulwithit.A：________________________B:No,youcan’t.youhaveabasketballgametomorrow,remember?Youneedagoodrest.A:CanIgotothemovies?B:ofcourse.A：________________________B:Ican’t.Ihavetodosomeworknow.CDBAAskandanswerinpairsA：

Mr.Lake,couldIgotothetoilet?B:Ofcourseyoucan.A：CouldIuseyourcomputer?B:Yes,ifyouarecarefulwithit.A：CanIstayoutuntileleven?B:No,youcan’t.youhaveabasketballgametomorrow,remember?Youneedagoodrest.A:CanIgotothemovies?B:ofcourse.A：Couldyougivemearidetotownnow?B:Ican’t.Ihavetodosomeworknow.until（后接时间点或从句）直到……为止

作介词；表示“直到……为止”，后接时间点作连词

Makeupconversationsforeachsetting,usingcanorcould.1.You’reatyourfriend’shome.Youwanttocallyourparents,butyourphoneisdead.2.Youweresickathomeyesterday.YourfriendwenttoanEnglishandtooknotes.Youwanttoknowmoreabouttheclass.3.Youareholdingalargebox.Itisdifficulttoopenthedoor.Yourneighbourcomes.“death”是名词，意为“死亡”。Hisdeathmadeusverysad.“die”是动词，意为“死；去世”，强调动作。Mypetdogdiedlastweek.（我的宠物狗上周死了。）A:Can/CouldIuseyourphone?B:Sure./Ofcourse1.You’reatyourfriend’shome.Youwanttocallyourparents,butyourphoneisdead.Makeupconversationsforeachsetting,usingcanorcould.1.You’reatyourfriend’shome.Youwanttocallyourparents,butyourphoneisdead.2.Youweresickathomeyesterday.YourfriendwenttoanEnglishandtooknotes.Youwanttoknowmoreabouttheclass.3.Youareholdingalargebox.Itisdifficulttoopenthedoor.Yourneighbourcomes.A:CouldyoupleaselendyourEnglishnotestome?B:Sorry,Ihaveto…C:Sure./Ofcourse1.Youweresickathomeyesterday.YourfriendwenttoanEnglishclassandtooknotes.Youwanttoknowmoreabouttheclass.

Makeupconversationsforeachsetting,usingcanorcould.1.You’reatyourfriend’shome.Youwanttocallyourparents,butyourphoneisdead.2.Youweresickathomeyesterday.YourfriendwenttoanEnglishandtooknotes.Youwanttoknowmoreabouttheclass.3.Youareholdingalargebox.Itisdifficulttoopenthedoor.Yourneighbourcomes.hold为动词，①表示“拿着；握住”Holdthebookinyourlefthand.（用你的左手拿着这本书。）②意为“举办；举行”Wewillholdasportsmeetingnextweek.（我们下周将举办一场运动会。）③表示“容纳；包含”Thisboxcanholdmanythings.（这个盒子能容纳很多东西。）【常见搭配】holdon（等一下；坚持）；holdup（举起；阻挡）。A:Couldyoupleasehelpmeopenthedoor?B:Sure./Ofcourse2.Youareholdingalargebox.Itisdifficulttoopenthedoor.Yourneighbourcomes.

Makeupconversationsforeachsetting,usingcanorcould.1.You’reatyourfriend’shome.Youwanttocallyourparents,butyourphoneisdead.2.Youweresickathomeyesterday.YourfriendwenttoanEnglishandtooknotes.Youwanttoknowmoreabouttheclass.3.Youareholdingalargebox.Itisdifficulttoopenthedoor.Yourneighbourcomes.①ask表示“询问；打听”可接双宾语，即“asksb.sth.”结构，问某人某东西。

②ask意为“请求；要求”,用于“asksb.todo