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1、蚌埠高新教育集团实验中学 灭绝时态之现在完成时丁辰内页篇Lead-in01现在完成时的构成The structure of the present perfect tense02现在完成时的基本句型The basic sentence patterns of the present perfect tense03The usage of present perfect tense04现在完成时的时间状语Adverbial clauses of the present perfect tenseContents现在完成时的用法内页篇01现在完成时的构成T Th he e s st tr ru u
2、c ct tu ur re e o of f t th he e p pr re es se en nt t p pe er rf fe ec ct t t te en ns se eContents内页篇Thestructureofthepresentperfecttense现在完成时是由“助助动词havehave/hashas+动词的的过去分去分词”构成。其中，助动词要和主语的人称、数保持一致。havehave（hashas）+过去过去分词分词内页篇 动词的的过去分去分词的的变化和化和过去式去式的的变化化并并不完全相同。今天我不完全相同。今天我们主要主要针对过去去分分词与与过去式相同的部分
3、去式相同的部分单词进行整理，把它行整理，把它们作作一一个大致的分个大致的分类。(注注：例子中例子中单词的的变化化顺序序为：为：动词原形原形 动词的的过去式去式 动词的的过去分去分词)Thestructureofthepresentperfecttense内页篇1324规则变化12一般在动词词尾直接加ed。如：pick picked picked;wish wished wished;stay stayed stayed以不发音的e结尾的动词后面加d。如：like liked liked;hope hoped hoped;phone phoned phoned3以“辅音字母+y”结尾的动词，变y
4、为i，再加-ed。如：study studied studied;hurry hurried hurried;reply replied replied4词尾只有一个辅音字母的重读闭音节动词，要双写辅音字母，再加-ed。如：stop stopped stopped;clap clapped clappedThestructureofthepresentperfecttense内页篇56以不变应万变。如：let let let;put put put;read read read若中间有双写e，则去掉一个e，单词末尾再加t。如：feel felt felt;keep kept kept;slee
5、p slept slept6895不规则变化77结尾的字母d变t。如：lend lent lent;build built built;send sent sentThestructureofthepresentperfecttense89变为以-ought或-aught结尾。如：buy bought bought;bring brought brought;catch caught caught;teach taught taught结尾加t。如：burn burnt burnt;dream dreamt dreamt;mean meant meant内页篇Test 1Writethefor
6、msofthepasttenseandpastparticiple:cut_sweep_spend_learn_think_cutcutsweptsweptspentspentlearntlearntthoughtthoughtThestructureofthepresentperfecttense内页篇02现在完成时的基本句型T Th he e b ba as si ic c s se en nt te en nc ce e p pa at tt te er rn ns s o of f t th he e p pr re es se en nt t p pe er rf fe ec ct
7、t t te en ns se eContents内页篇肯定式肯定式主语+助助动词havehave/hashas+动词的过去分词“.”否定式否定式 主语+助助动词havehave/hashas+notnot+动词的过去分词“.”疑问式疑问式 助助动词havehave/hashas+主语+动词的过去分词“？”Thebasicsentencepatterns内页篇A:Have you surfed the Internet(上网上网)?B:Yes,I have.I have surfed the Internet.No,I havent.I havent surfed the Internet.T
8、hebasicsentencepatterns内页篇Thebasicsentencepatterns Transformthesentencepatterns1)Wehavevisitedthemuseum.(改为一般疑问句改为一般疑问句)2)Theyhaveseenthefilm.(改为否定句改为否定句)3)Jennyhasfinishedherhomework.(改为一般疑问句并做否定回答改为一般疑问句并做否定回答)Have you visited the museum?They havent seen the film.Has Jenny finished her homework?No
9、,she hasnt.内页篇Test 2ThebasicsentencepatternsgiveyourmotheracallhavelunchA:Have you?B:Yes,I have./No,I havent.内页篇03现在完成时的用法T Th he e u us sa age es s o of f t th he e p pr re es se en nt t p pe er rf fe ec ct t t te en ns se eContents内页篇past now Yesterday,we cleaned the classroom.Now,the classroom is
10、 clean because we have cleaned it.用法用法1表示过去发生的动作表示过去发生的动作对对现在产生的现在产生的结果或影响结果或影响 Theusagesofthepresentperfecttense内页篇Test 3 Fillintheblankswiththecorrectpattern：1.Isawthisfilmlastweek.Now,IknowthisfilmbecauseI_.2.Ididmyhomeworkyesterday.Now,IcangiveittotheteacherbecauseI_ have seen ithave done it.The
11、usagesofthepresentperfecttense内页篇now past I began to teach English at this school five years ago.I have taught English at this school for five years.用法用法2 2：表示过去发生的动作一直表示过去发生的动作一直延续延续到现在且有到现在且有可能继续下去的动作或状态。可能继续下去的动作或状态。Theusagesofthepresentperfecttense内页篇Test 3 Fillintheblankswiththecorrectpattern：1
12、.Iamadoctor.IbegantoworkwhenIwas22.Now,Iam26.I_(work)forfouryears.2.WewenttotheUSAlastMonday.TodayisMonday.We_(stay)intheUSAsincelastMonday.have workedhave stayedTheusagesofthepresentperfecttense内页篇04现在完成时的时间状语Ad dv ve er rb bi ia al l c cl la au us se es s o of f t th he e p pr re es se en nt t p p
13、e er rf fe ec ct t t te en ns se eContents内页篇用法1表示过去发生的动作表示过去发生的动作对对现在产生的现在产生的结果或影响结果或影响 用法2表示过去发生的动作一表示过去发生的动作一直直延续延续到现在且有可能到现在且有可能继续下去的动作或状态。继续下去的动作或状态。already,yet ever,never,just,beforesince VS forAdverbialclausesofthepresentperfecttense内页篇通常用于肯定句中，放在have/has和过去分词之间，意为“已经”。如:They have already arr
14、ived at the hospital.他们已经到达医院了。alreadyyet多用于否定句和疑问句末,意为还(没)。如:The sun has not risen yet.太阳还没有升起。Adverbialclausesofthepresentperfecttense内页篇Test 41)Dont worry about him.He has _ arrived at home safely.2)Have you told him the news _?3)I have _ eaten some rice.Now I am full.yet already1.Completethesent
15、enceswiththewordsinthebox.alreadyyetalreadyAdverbialclausesofthepresentperfecttense内页篇01 1ever02 2never03 3just04before“曾经”，通常用于疑问句中。Have you ever been to the USA?“以前”，用在完成时中，放在句末。have never read this kind of books before.“从来不”，用在否定句中。Is he famous?I have never heard of him.“刚刚”，用在陈述句中。I have just bo
16、ught a novel。Adverbialclausesofthepresentperfecttense内页篇Test 42.Fillintheblankswiththecorrectforms.1)_you ever _(be)to Hawaii?2)We _ never _(see)such an exciting match before.3)Mother _ just _(clean)the house.Please dont come in.4)I _(see)this girl before.Havebeenhaveseenhascleanedhave seenAdverbial
17、clausesofthepresentperfecttense内页篇用法1表示过去发生的动作表示过去发生的动作对对现在产生的现在产生的结果或影响结果或影响 用法2表示过去发生的动作一表示过去发生的动作一直直延续延续到现在且有可能到现在且有可能继续下去的动作或状态。继续下去的动作或状态。already,yet ever,never,just,beforesince VS forAdverbialclausesofthepresentperfecttense内页篇Hehasstayedheresince5oclock.since since+时间点点ADD YOUR T TIT TLE HERE0
18、103Hehaslivedheresince5yearsago.since since+时间段段 +a ago o02ShehastaughtEnglishsincehecamehere.since since+从句从句03sincefor04forfor +一段一段时间IhavelearntEnglishfor16years.Adverbialclausesofthepresentperfecttense内页篇Test 43.Completethesentenceswithfororsince.1)Mr.BrownhashadhisTV_15years.2)Ivetakendrivingle
19、ssons_lastmonth.3)Myfriendshaventvisitedme_mybirthday.4)Wehaventusedourcar_alongtime.5)Shehasnthadagoodcupofcoffee_years.6)Tomhaswornglasses_hewas7yearsold.forforforsincesincesinceAdverbialclausesofthepresentperfecttense内页篇Test 44.Whichoneistrue？1)Themoviehasstarted.2)Themoviehasstartedfor10minutes.Adverbialclausesofthepresentperfecttense内页篇WehavelearntEnglishbefore.SummaryNow,wearestilllearningEnglish.WewilllearnEnglishinthefuture.Learningisalifelongthing.Nothingcanstopoursteps.内页篇SummaryThanks for listeningThanks for listening！