外研版 八上 英语 Unit 5 课时3 Understanding ideas（Grammar）（课件）

Playbytherules?Unit5Understandingideas(Grammar)初中英语/外研版/八年级上册学习目标1.能通过观察教材中“to,inorderto,soasto”的例句，准确识别其“动词原形前加to/inorderto/soasto”的结构特征，理解三者“用于表达行为目的”的核心语法功能；能小组合作归纳出三者的细微差异，初步构建目标语法的知识体系。（学习理解）012.能在阅读语篇中快速定位含“to,inorderto,soasto”的句子，分析并口头阐述句子中“行为”与“目的”的逻辑关联，提升语篇中语法结构的识别与解读能力。（应用实践）02能结合“男孩打破花瓶后诚实留便条”的故事线索，运用“to/inorderto/soasto”完成给StoryAunt的信件写作，使故事叙述更具逻辑连贯性，同时自然传递“诚实与规则应存于内心”的情感与价值观念，实现语法在叙事语篇中的创造性运用。（迁移创新）03ContentsLeadin01Presentaion02Production03Summary04Languagepoints0506Exercises07Homework08Leadin01Lookatthevideo,thinkaboutthequestionWhydothestudentswalkintoschool?whydothestudentsrunningintheplayground?Lookatthevideo,thinkaboutthequestionWhydotheygointothedininghall?Lookatthevideo,thinkaboutthequestionLookatthevideo,thinkaboutthequestionWhydotheygointothedininghall?Theyrunningintheplaygroundtoplaygamesandhavefunwhydothestudentsrunningintheplayground?Theywalkintoschooltohaveclass.Whydothestudentswalkintoschool?theygointothedininghalltohavelunch.Teamcompetition:Use“to”tosaythewordsquicklyIdrawpictures

tomakeabirthdaycardformymom.drawpicturesIprepareforatesttogetagoodgrade.prepareforatestTeamcompetition:Use“to”tosaythewordsquicklyIfixabrokenchairtoletmothersitonit.fixabrokenchairTeamcompetition:Use“to”tosaythewordsquicklyIjointhechessclubtoplaychesswithfriends.jointhechessclubTeamcompetition:Use“to”tosaythewordsquicklyIreturnlibrarybooksinordertogivethembackontime.returnlibrarybooksTeamcompetition:Use“to”tosaythewordsquicklyToday,we’lllearnhowtouse"todo","inordertodo"and"soastodo"totellwhywedothings.Presentaion02Lookattheexamplesentencesandanswer.(a)Igotonthetraintogohome.What’shispurposeofgettingonthetrain？(b)Iwenttoaquietareainordertoread.(c)IcoveredmynosesoastoreducethesmellcomingfromMrSmellyFood.Whydoeshechooseaquietarea?Whydoeshecoveredyournose？?Ifyougotothelibrary,what’syourpurpose?Canyouusethesestructures?to,inorderto,soastoGroupdiscussion:Whatdothesethreestructures(to,inordersoasto)doinasentence?(a)Igotonthetraintogohome.(b)Iwenttoaquietareainordertoread.(c)IcoveredmynosesoastoreducethesmellcomingfromMrSmellyFood.作用：

结构：转换：Summarizethegrammarrules均表示“为了……（目的）”

to/inorderto/soasto+动词原形。多数情况可互换；inorderto,soasto更强调目的to更简洁soasto一般不用于句首inorderto可用于句首。Practice03Nowfindmoresentenceswiththesestructuresinthereadingpassage.Iturnedaroundsoasto

seetheotherpassengers’

faces.IcoveredmyearsinordertoblockthenoisecomingfromRockGirl.Rewritethesentenceswithto,inordertoandsoasto.1Peoplewearseatbeltsincars.Peoplewanttostaysafeontheroad.———————————————————————————2Sallyarrivedatthetrainstationbefore6:00am.Sheneededtocatchtheearliesttrain.———————————————————————————3Ilistenedcarefullyinmathsclass.Ihopetoimprovemygrades.———————————————————————————Peoplewearseatbeltsincarstostaysafeontheroad.Sallyarrivedatthetrainstationbefore6:00aminordertocatchtheearliesttrain.

Ilistenedcarefullyinmathsclasssoastoimprovemygrades.CompetethelettertoStoryAuntusingthenotesinbracketsandthetargetgrammaryouhavelearnt.DearStoryAunt,1__________________________________(I'mwriting/shareatouchingstory).2_______________________________(yesterday,Ileftmyflat/gotowork).However,Ifoundmyfavouriteflowerpotbroken.3______________________________________________(Ipickedupthepieces/cleanupthemess).ThenIsawanote.Itwasfromaboy.Hesaidhebroketheflowerpotwhileplayingbasketball.4______________________________(hewrotethenote/saysorrytome).Healsolefthisphonenumberwithsomemoney.I’mwritingtoshareatouchingstoryYesterday,Ileftmyflattogotowork

IpickedupthepiecestocleanupthemessHewrotethenotetosaysorrytomeHishonestymademerespecthim.Tellingthetruthisn'talwayseasy.However,hefollowedtherulesinhisheart.I'm5________________________________________(sharingmystory/spreadsomehappiness).Inthestory,wecanseethekindnessinsmallthings.MsYu,fromWenzhousharingmystorytospreadsomehappinessProduction04Workinpairs.Shareastoryoffollowingrules.UsethewordsandexpressionsfromthereadingpassageandtheUsefulexpressionstohelpyou.ExampleConversationWhendidthestoryhappen?Wheredidthestoryhappen?Whatdidyoudo?Whathaveyoulearnt?Last..,l...Please...Ilovedoing...inorderto...Peoplehaveto...Itriedto...Thisruleisusefulbecause...Fromthisexperience,Ihavelearntthat...UsefulexpressionsSummary05动词不定式可以在句中作目的状语，表示行为动作的目的。e.g.TheWWFisworkinghardtosavealltheanimals.

世界自然基金会正在努力挽救所有的动物。Shepractiseseverydaytoimprovehersingingskills.

她每天都在练习，以提高自己的歌唱技巧。e.g.Dylantrainedhardtoimprovehisbasketballskills.Dylan刻苦训练以提高自己的篮球技术。=Toimprovehisbasketballskills,Dylantrainedhard.在作目的状语时，不定式既可以放在句首，也可以放在句尾。放在句首时通常加逗号。除了直接使用todosth之外，我们还可以使用inordertodosth和soastodo

sth来表示行为动作的目的。e.g.He'ssavingmoneyinordertobuyanewcomputer.

为了买一台新电脑，他正在攒钱。Lindastartedworkearlysoastofinishitbyfive.Linda很早就开始工作，以便在五点前完成。inordertodosth更正式，强调目的，可位于句首或句中。否定结构：inordernottodosth.e.g.Theyleftearly

inordertocatch

thefirsttrain.

他们早早离开，为了赶上首班火车。

Inordertosucceed,youmustworkhard.

为了成功，你必须努力。Sheturneddownthemusicinordernottodisturbneighbors.

她调低音乐，以免打扰邻居。soastodosth较正式，一般不位于句首。否定结构：soasnottodosth.多用于避免负面情况。e.g.Shespokequietly

soasnottowake

thebaby.

她轻声说话，以免吵醒宝宝。

Hecheckedthemap

soastoavoid

gettinglost.

他查看地图，以防迷路。Languagepoints061.staysafe（保持安全）•用法：用于描述维持安全的状态，可作目的状语、表语等。•例句：Pleaseremembertostaysafewhenyougohikinginthemountains.（你去山里徒步时，请记得保持安全。）2.arriveat（到达）•用法：后接小地点（如车站、公园、建筑等），表示抵达具体场所；若接大地点（如城市、国家）则用“arrivein”。•例句：Wearrivedattheparkat9o'clockthismorning.（我们今天早上9点到达了公园。）；ShearrivedinBeijingyesterdayafternoon.（她昨天下午到达了北京。）3.hopetodo（希望做某事）•用法：“hope”后接动词不定式，表达对动作的期望；需注意“hope”无“hopesb.todo”结构，若表达“希望某人做某事”，可用“hopethat+从句”。•例句：Ihopetolearnanewlanguagethisyear.（我希望今年学习一门新语言。）Ihopethatyoucanpasstheexam.（我希望你能通过考试。）4.improveone’sgrades（提升某人的成绩）

•用法：“one’s”根据主语替换为形容词性物主代词（my/your/his/her等），表示提升学业或技能类成绩。

•例句：Lisatakesextraclassestoimprovehergradesinmath.（莉萨参加课外班以提升自己的数学成绩。）

5.playingbasketball（打篮球）

•用法：是“playbasketball”的动名词形式，可作状语（表时间、伴随等）、主语、宾语等。

•例句：Playingbasketballishisfavoritesport.（打篮球是他最喜欢的运动。）；Hemetafriendwhileplayingbasketball.（他打篮球时遇到了一个朋友。）6.followtherules（遵守规则）•用法：表示依照既定的规定、准则行事，可用于生活、学习、工作等各类场景。•例句：Studentsmustfollowtherulesoftheschool.（学生必须遵守学校的规则。）7.leaveone’sphonenumber（留下某人的电话号码）•用法：“one’s”根据主语替换为相应物主代词，用于需要留存联系方式的场景。•例句：Ifyouhaveanyquestions,pleaseleaveyourphonenumber.（如果你有任何问题，请留下你的电话号码。）8.tellthetruth（讲真相）•用法：表示说出真实的情况，强调诚实的态度。•例句：It’simportanttotellthetruthinacourtoflaw.（在法庭上讲真相很重要。）Exercises06一、单项选择1．Togetherwiththegovernment,manylocalpeoplearoundthereservearedoingwhattheycan________wildanimals.A．save B．tosave C．saving2．Ourgovernmenthastakenmanymeasures________theproductquality.A．controlling B．tocontrol C．controls3．________toomuchplasticisbadfortheEarth.________theEarth,weshouldusepaperbags.A．Use;Toprotect B．Using;Protecting C．Using;Toprotect4．—Whydidhereturnhometobeavillageteacher?—________theeducationofthecountryside.A．Develop B．Developing C．Todevelop5．Chineseathletesdidwhattheycould________intheParisOlympics.A．compete

B．competed

C．tocompeteBBCCC6．Penguinshuddle(依偎)together________keepwarminthecoldweather.A．for

B．to

C．because7．YoucansurftheInternet______moreaboutCraigKielburger.A．toknow

B．know

C．knowing8．________healthily,Lisagetsupearlytodosomesportsanddrinksacupofmilkeveryday.A．Growup

B．Togrowup C．Growingup9．It’skind________youtogooutofyourway________usfeelathome.A．for;tomake

B．of;making

C．of;tomake10．Mommakesmeeatanappleeveryday________thedoctoraway.A．keeps B．iskept C．tokeepBABCC二、完成句子11．为了保持身体健康，我们需要经常锻炼和均衡饮食。