2026年四川省人教版高中英语必修第一册第9单元语法精讲课件

●专题资料●2026年四川省人教版高中英语必修第一册第9单元语法精讲课件深度解析语法要点，提升英语应用能力实用干货·值得收藏目录CONTENTS01情境导入02教学目标03知识点讲解04例题演示05课堂互动06易错辨析07分层练习08总结与作业2026年四川省人教版高中英语必修第…2/243情境导入1.【导入】通过分析一篇关于环保的文章，引出本单元重点语法——现在完成时态的用法。2.在阅读文章'HowWeCanProtecttheEnvironment'时，注意句子'TheEarthhasbeenpollutedforyears.'中的'hasbeenpolluted'结构，这正是现在完成时的典型用法。3.引导学生思考：为什么这里要用现在完成时态？它与其他时态有何不同？4.通过实际语境感知语法，激发学习兴趣，为后续知识讲解做铺垫。2026年四川省人教版高中英语必修第…情境导入·3/24教学目标◆【目标】掌握现在完成时态的构成及用法，能正确区分现在完成时与其他时态的异同。◆能运用现在完成时态进行口语和写作表达，如描述过去的经历或完成的动作对现在的影响。◆通过例题和互动练习，提升语法应用能力，为高考作准备。◆理解现在完成时态的语法规则，并能举例说明其在实际情境中的应用。◆培养观察、分析和运用英语语法的能力。2026年四川省人教版高中英语必修第…教学目标·4/24知识点讲解1【构成】现在完成时态由've'（have/has）+过去分词构成，如'Hehasfinishedhishomework.'。2【用法1】描述过去的经历，如'Theyhavetraveledtomanycountries.'。3【用法2】描述动作对现在的影响，如'Therainhasmadetheroadwet.'。4【用法3】表示从过去开始并持续到现在的动作，如'Ihavelivedhereforfiveyears.'。5【例句】'Shehaspassedtheexam,sosheisveryhappy.'——说明过去动作对现在的影响。2026年四川省人教版高中英语必修第…知识点讲解·5/24例题演示•【例题1】'Whathaveyoudonetoday?'——现在完成时态用于询问过去的经历。•【解题过程】'Ihavefinishedmyhomeworkandwatchedamovie.'——用现在完成时态描述过去的经历。•【例题2】'Thecompanyhasimproveditssalesthisyear.'——现在完成时态用于描述动作对现在的影响。•【解题过程】'Yes,theirproductsareverypopularnow.'——说明过去动作带来的现在结果。•【例题3】'HehasstudiedEnglishforthreeyears.'——现在完成时态用于描述从过去开始并持续到现在的动作。2026年四川省人教版高中英语必修第…例题演示·6/24课堂互动1.【活动】小组讨论：'Whathaveyoudonethisweekend?'——每人用现在完成时态描述自己的活动。2.【操作步骤】1.分组，每组4-5人；2.每人用现在完成时态写一句话描述周末活动；3.小组内分享并纠正错误；4.每组选代表汇报，教师点评。3.【时间分配】15分钟，包括讨论、分享和点评。4.通过互动活动，巩固语法知识，提升口语表达能力。2026年四川省人教版高中英语必修第…课堂互动·7/24易错辨析▸【易错点】误用现在完成时态，如将'Thebookhasbeenreadbyhim.'改为'Thebookhasreadhim.'——错误，被动语态需加be动词。▸【正误对照】'Thebookhasbeenreadbyhim.'（正确）vs'Thebookhasreadhim.'（错误）。▸【辨析】现在完成时态与一般过去时态的区别：现在完成时态强调动作对现在的影响，一般过去时态仅描述过去发生的事情。▸【例句】'Ihavelostmykeys.'（强调对现在的影响）vs'Ilostmykeysyesterday.'（仅描述过去事件）。2026年四川省人教版高中英语必修第…易错辨析·8/24分层练习1.【基础巩固】选择题：'She______toLondon.'A.goB.goesC.hasgoneD.hasbeen——答案：C。2.【能力提升】改错题：'Hehasdonehishomeworkfortwohours.'——改为：'Hehasbeendoinghishomeworkfortwohours.'——解释：强调动作持续到现在的状态。3.【拓展挑战】写作题：'Describeyourfavoriteholidayusingthepresentperfecttense.'——鼓励学生用现在完成时态描述经历和感受。4.根据学生层次设计不同难度的练习，全面提升语法应用能力。2026年四川省人教版高中英语必修第…分层练习·9/2410GrammarConceptDeepDive■Focusontheformationandfunctionofthepresentperfecttenseinacademicwriting.Presentperfectisusedtodescribeactionsthatbeganinthepastandcontinuetothepresent.Italsohighlightscompletedactionswithrelevancetothepresentmoment.Examplesinclude"HehasstudiedEnglishforfiveyears"and"Shehasjustfinishedherhomework."2026年四川省人教版高中英语必修第…2026SichuanEditionHighSchoolEnglishBook1Unit9·10/2411PresentPerfectUsageScenarios1.Usepresentperfectwhendiscussinglifeexperiences.Applyittodescribechangesthathaveoccurredovertime.It'sessentialfortalkingaboutsituationsthatstartedinthepastandcontinuetoday.Commoncontextsinclude"IhavevisitedParisthreetimes"or"Thecompanyhasimproveditsperformancerecently."2026年四川省人教版高中英语必修第…2026SichuanEditionHighSchoolEnglishBook1Unit9·11/24Subject-VerbAgreementRules◆Allformsofpresentperfectusetheauxiliary"have"followedbythepastparticiple.Third-personsingularsubjectsrequireanadditional"s"or"es".Forexample,"ShehastraveledtoJapan"but"TheyhavetraveledtoJapan."Thisruleappliestoallsubjecttypes:singularnouns,pluralnouns,andpronouns.2026年四川省人教版高中英语必修第…2026SichuanEditionHighSchoolEnglishBook1Unit9·12/24QuestionFormationTechniques1Auxiliary"have"comes*before*thesubjectinquestions.Structure:"Have+Subject+PastParticiple?"Examples:"Haveyouseenmypen?"or"Hasshecompletedthereport?"Thisdistinguishespresentperfectquestionsfromsimplepastquestions.2026年四川省人教版高中英语必修第…2026SichuanEditionHighSchoolEnglishBook1Unit9·13/24NegativeStatementsStructure•Innegatives,"have"or"has"remains*before*thesubject.Add"not"betweenthem:"Subject+have/has+not+PastParticiple"Examples:"Hehasnoteatenbreakfast"or"Wehavenotfinishedtheprojectyet."Rememberthecontraction:"hasn't"insteadof"hasnot".2026年四川省人教版高中英语必修第…2026SichuanEditionHighSchoolEnglishBook1Unit9·14/24PresentPerfectvsSimplePast1.Presentperfectemphasizesrelevancetothepresent.Simplepastfocusessolelyoncompletedactionsinthepast.Testwiththetimemarker:Presentperfectworkswith"now","today",or"recently".Examplecontrast:"Shehasgraduated"(currentrelevance)vs"Shegraduatedlastyear"(historicalfactonly).2026年四川省人教版高中英语必修第…2026SichuanEditionHighSchoolEnglishBook1Unit9·15/24TimeAdverbialClues▸Sinceandforsignalduration(presentperfectusage).Sincerequiresapointintime("since2020"),forneedsaduration("forthreeyears").Examples:"Ihavelivedhereforfiveyears"or"ShehasstudiedSpanishsincemiddleschool."Thesemarkersareessentialforidentifyingpresentperfectcontexts.2026年四川省人教版高中英语必修第…2026SichuanEditionHighSchoolEnglishBook1Unit9·16/24CommonTimeExpressions1.Recently,lately,sofar,anduptonowallsupportpresentperfect.Thesephrasesindicatepresentrelevanceofpastactions.Exampleusage:"Haveyouseenthenewmovielately?"or"Ihavereceivedseveralemailssofartoday."Studentsshouldmemorizetheseaspresentperfecttriggers.2026年四川省人教版高中英语必修第…2026SichuanEditionHighSchoolEnglishBook1Unit9·17/2418ExampleProblemAnalysis■Analyze:"Theyhavefinishedtheexperiment."(Presentperfectcorrect)Alternative:"Theyfinishedtheexperiment."(Simplepastincorrecthere)Reasoning:Theresultaffectscurrentdiscussionaboutfindings.Teachstudentstolookforlogicalconnectionstothepresent.2026年四川省人教版高中英语必修第…2026SichuanEditionHighSchoolEnglishBook1Unit9·18/2419StudentPracticeActivity1.Grouptask:Writefivepresentperfectsentencesaboutschoolevents.Incorporatetimeexpressionslike"sincelastterm"or"fortwoyears".Peerreview:Checkforsubject-verbagreementandcorrectusage.Teacherobservation:Notecommonerrorsforlatercorrection.2026年四川省人教版高中英语必修第…2026SichuanEditionHighSchoolEnglishBook1Unit9·19/24ErrorCorrectionDrill◆Presentperfectwithoutpropertimemarkers:"HehastraveledtoChina."(Add"sofar"or"recently")Incorrecttenseusage:"Shehaven'teatenlunch."(Correctto"hasn'teatenlunch")Subject-verbmismatch:"Thestudentshascompletedthetest."(Correctto"havecompleted")Usethesemistakesasteachingexamples.2026年四川省人教版高中英语必修第…2026SichuanEditionHighSchoolEnglishBook1Unit9·20/24AssessmentQuiz1Multiplechoice:Identifythecorrectformamongthreeoptions.Fill-in-the-blank:Providemissingverbsinpresentperfectcontexts.Sentencetransformation:Changesimplepasttopresentperfectwithtimeclues.Score1pointpercorrectanswertotrackindividualprogress.2026年四川省人教版高中英语必修第…2026SichuanEditionHigh