Unit 7 课时4 Section A Grammar Focus（大单元课时课件）英语新教材人教版八年级下册

Unit7AGoodRead人教版2024版八年级下册SectionA(GrammarFocus)语法课LearningObjectives学生能够通过观察和分析例句中的现在完成时结构，深入理解ever/never/just/already/yet等时间副词在现在完成时中的语义差异，掌握现在完成时在疑问句、否定句和肯定句中的不同用法。01学生能够掌握并准确运用现在完成时完成对话填空练习，在语境中正确使用现在完成时描述阅读经历，提升语法运用的准确性和熟练度。02学生能够熟练区分现在完成时与一般过去时的用法差异，完成语篇填空练习；通过语法实践在语篇层面灵活运用现在完成时进行连贯表达，在小组采访活动中用目标语言交流阅读经历，提升语言组织与口语表达能力。03Readthesentencesandunderlinethepresentperfectformsoftheverbs.Payattentiontothemeaningsoftheboldwords.Haveyoudecidedonabookforyourreport?Yes,Ihave./No,Ihaven’t.HasPeterever

heardof

thisbook?No,he’snever

heardofit.HasChenJiereadthisbookyet?No,butshe’salready

borroweditfromthelibrary.Whathaveyoureadrecently?I’vejust

finishedTheRomanceoftheThreeKingdoms.I’ve=Ihaveshe’s=shehashaven’t=havenothasn’t=hasnot4aWhendoweusethepresentperfecttense?Circlethesignalwordsaboutthepresentperfecttenseinthestory.Payattentiontotheformsofverbsinthepresentperfecttense.Thinking现在完成时现在完成时表示过去发生或已经完成的动作对现在造成的影响或结果。定义结构现在完成时是由“助动词have/has+过去分词”构成的，规则动词的过去分词与其过去式相同，不规则动词的过去分词则须加强记忆。past•••••••••••••••FuXingfinished

Alice’sAdventuresinWonderland.FuXingcansharemanyinterestingdetailsofthebookwithPeter.FuXinghasfinished

Alice’sAdventuresinWonderland.1.表示过去发生或已经完成的动作对现在造成的影响或结果。presentpresentperfectpast•••••••••••••••Iread

AroundtheWorldinEightyDaysforthefirsttime.I'vealreadyread

AroundtheWorldinEightyDaystwice.presentpresentperfectIread

AroundtheWorldinEightyDaysforthesecondtime.2.表示一个动作到现在已经发生了多少次。现在完成时句式结构示例肯定式否定式句式主语+have/has+过去分词+其他.Hehasreadthisbookbefore.他以前读过这本书。主语+haven’t/hasn’t+过去分词+其他.Ihaven’tcleanedouttheroom.我还没清理干净房间。句式结构示例一般疑问式特殊疑问式

句式肯定回答:

Yes,主语+have/has.否定回答:

No,主语+haven’t/hasn’t.Have/Has+主语+过去分词+其他?Haveyouwashedtheclothes?你洗衣服了吗？疑问词（组）＋have/has＋主语＋过去分词＋其他?Where

has

she

found

the

keys?她在哪儿找到钥匙的?规则动词的过去分词与过去式相同，不规则动词需要单独记忆。规则动词过去分词构成：规则原形过去分词直接加-edfinishfinished以e结尾加-ddecidedecided以“辅音+y”结尾，变y为i加-edstudystudied重读闭音节双写加-edstopstopped过去分词常见不规则动词过去分词：原形过去分词原形过去分词bebeenreadreadbeginbegunseeseenbuyboughttaketakenchoosechosenteachtaughtcomecometelltolddodonethinkthoughteateatenwritewritten原形过去分词原形过去分词gogoneknowknownhavehadmakemadehearheardmeetmetleaveleftputputloselostreadread常见不规则动词过去分词：现在完成时标志词Ihave

already

readthestory.Ihave

justreadthestory.Ihave

never

readthestory.Ihaven’treadthestoryyet.Ihaveever

readthestory.常和already（已经）yet（已经；还）just（刚刚）ever（曾经）never（从不）等连用。标志词1：already1.核心含义：已经，强调动作已经完成，带有“提前完成”的意味2.适配句式：肯定句（偶尔用于疑问句，表惊讶，本单元不侧重）3.固定位置：句中，位于have/has之后，动词过去分词之前4.例句（贴合单元）：Ihavealreadyborrowedthebookfromthelibrary.5.易错点：不可用于否定句/疑问句（否定/疑问用yet）标志词2：yet1.核心含义：还；仍，强调动作未完成，多用于否定/疑问结尾2.适配句式：否定句、一般疑问句（不用于肯定句）3.固定位置：句末（否定句、疑问句的末尾）4.例句（贴合单元）：疑问句：Haveyouchosenabookforyourreportyet?否定句：Shehasn’tfinishedreadingthebookyet.

标志词3：never1.核心含义：从未，强调动作从过去到现在从未发生过2.适配句式：否定句（本身含否定意味，无需再加not）3.固定位置：句中，位于have/has之后，动词过去分词之前4.例句（贴合单元）：Hehasneverheardofthisfamousauthor.5.易错点：避免双重否定（如：hasnevernotheard错误）

标志词4：ever1.核心含义：曾经，强调询问动作是否在过去发生过2.适配句式：一般疑问句（偶尔用于肯定句）3.固定位置：句中，位于have/has之后，动词过去分词之前4.例句（贴合单元）：Haveyoueverreadaforeignclassicnovel?5.易错点：回答ever引导的问句，否定用never，不用notever标志词5：just（详细讲解）1.核心含义：刚刚，强调动作刚完成不久（动作发生在近期）2.适配句式：肯定句（偶尔用于否定句）3.固定位置：句中，位于have/has之后，动词过去分词之前4.例句（贴合单元）：Ihavejustfinishedmybookreport.5.易错点：与already区分，just侧重“刚完成”，already侧重“已完成”现在完成时一般过去时用法标志词只表示过去的动作或状态，与现在无关表示过去发生的某一动作对现在造成的影响或结果，强调的是现在的情况常和already,yet,never,ever,just,sofar,since,for等连用常和yesterday,lastweek,justnow,twodaysago等具体的表示过去的时间状语连用现在完成时&一般过去时Completetheconversationswithever,never,just,already,oryet．1.A:Haveyou__________heardofthebookTheLittlePrince?B:No,I’ve_________heardofit.A:I’ve___________finishedreadingit.It’ssuchasimplestory,butyoucanlearnalotfromit!just/alreadyevernever4bCompletetheconversationswithever,never,just,already,oryet．2.A:Haveyouchosenabookforyourbookreport__________?B:Yes,I’vechosenTheLittleMatchGirl.It’ssuchasadstory,butIloveit.I’ve__________readitmanytimes.alreadyyet4bCompletetheconversationswithever,never,just,already,oryet．3.A:I’ve________readaclassicnovelbefore.Couldyourecommendone?B:Well,I’ve___________finishedOutlawsoftheMarsh.It’sreallygood!A:Oh,thanks!CouldIborrowit?B:Sure!just/alreadynever4bCompletethepassagewiththesimplepastorpresentperfectformsoftheverbsinbrackets._______youever________(try)toreadbooksfromdifferentcountries?Atthestartofthisyear,I__________(decide)toreadbooksfromasmanycountriesaspossible.I_________(begin)withTheAdventuresofTomSawyer.TodayI_______already_________(read)twentydifferentbooks.Havetrieddecidedbeganhaveread4cCompletethepassagewiththesimplepastorpresentperfectformsoftheverbsinbrackets.Thesebooks____________(teach)mealotaboutotherculturesandsocieties,andthey___________(allow)metoseetheworlddifferently.Inthepast,Ionly__________(know)thenamesofdifferentcountries,butnowIunderstandthemalittlebitbetter.Thisexperiencehasbeenamazingsofar.I________never__________(realize)howbigourworldreallyis!havetaughthaveallowedknewhaverealized4cInterviewyourclassmatesandfindoutwhohasdonetheseactivities.

readallfourChineseliteraryclassics

readabookinadifferentlanguage

readabookwithmorethan500pages

watchedamoviebasedonanovel

readabookmorethantwice

joinedareadingclub4d用have/has+过去分词或动词过去式填空，判断时态1.I___________(read)thisbookbefore.Iknowitscontent.

2.She___________(read)thisbooklastFriday.

3.___________youever___________(hear)ofthisauthor?

4.He___________(hear)ofthisauthoryesterday.

5.They___________________(justfinish)theirbookreports.

havereadreadHaveheardheardhavejustfinished自我检测

用所给动词的适当形式填空（现在完成时/一般过去时）1.He__________________(justfinish)readingthenovel.2.___________youever___________(read)aclassicbook?

3.She_____________________(alreadyborrow)thebookfromthelibrary.

4.I___________(neversee)thiskindofbookbefore.

5.They___________(go)tothelibraryyesterday.

6.___________you___________(decide)onabookyet?

7.Mymother___________(read)thisbooklastmonth.

8.He___________(nothear)ofthisbookbefore.

hasjustfinishedHavereadhavehasalreadyborrowedhaveneverseenwentHavedecidedreadhasn’theard自我检测用already/yet/never/ever/just填空，注意位置和句式1.Haveyou___________triedtoreadbooksfromothercountries?2.I’ve___________finishedmyhomework.Let’sgotothelibrary.3.Shehasn’tchosenabookforherreport___________.4.Hehas___________heardofthisfamouswriter.It’snewtohim.5.Theyhave___________borrowedthebooks,soweneedtowait.6.—Haveyou___________readTheOldManandthe