八年級英語下《Unit9Haveyoueverbeentoamuseum-SectionAGrammarfocus4a-4c》-25

現(xiàn)在完成時一、學習目標：1、知識目標：記住現(xiàn)在完成時的構(gòu)成和三種基本用法；說出現(xiàn)在完成時和一般過去時的區(qū)別；2、水平目標：能應(yīng)用現(xiàn)在完成時表達自己做過的事情。能解答考察現(xiàn)在完成時的題目。二、重點：現(xiàn)在完成時的構(gòu)成和三種基本用法三、難點：現(xiàn)在完成時和一般過去時的區(qū)別四、教學過程：（一（一）結(jié)構(gòu)：肯定句式：現(xiàn)在完成時的肯定句式是如：①Wehavejustfinishedourhomework．②Shehasgonehome．否定句式：現(xiàn)在完成時的否定句式是如：①Wehaventstudiednit2yet②Thetrainhasn'tstoppedyet.疑問句式：一般疑問句式是把助動詞have或has提到主語之如：Haveyoureadthisstorybookyet？其肯定回答用

否定回答用.其肯定回答用

否定回答用..”有時用 ,cnotyet.或 ,cnever.特殊疑問句及反意疑問句結(jié)構(gòu)如下：Whathaveyoudonewithmybike?You'vereadthisstorybook,haven'tyou?現(xiàn)在完成時句式中的have或has是助動詞，has用于第一人稱單數(shù)，其它人稱一律用—。定義：注意：“已經(jīng)練習：定義：注意：“已經(jīng)練習：現(xiàn)在完成時表示到現(xiàn)在為止已經(jīng)完成或仍在持續(xù)的動作、狀態(tài)；強調(diào)對現(xiàn)在的影響或聯(lián)系。1）現(xiàn)在完成時的一般疑問句往往在句末加yet。2）把現(xiàn)在完成時的一般疑問句譯成漢語時，往往譯成 過嗎？”了嗎？等。1.A：Haveyouever

B：No,I’venever_____(visit)thehistorymuseum?(be)there2.Ihavebeentotheartmuseum.(改為一般疑問句) youever theartmuseum?3．—Hassheeverbeentothespacemuseum?—Yes， ．(作肯定回答).have，been，you，the，to，GreatWall(？)(連詞成句).Theyhavebeenhereforthreemonths.(改為同義句)Theycameherethreemonths ．(二)合作交流過去分詞(規(guī)則變化)1)一般在詞尾直接加-ed,eg：worked,visited,asked,played,stayed2)以不發(fā)音的字母e結(jié)尾的，直接在詞后加d,eg：likedlivedmoved3)末尾只有一個輔音字母的重讀閉音節(jié)詞,雙寫該輔音字母,再加ed,eg：stoppeddroppedrobbed4)以“輔音字母+y”結(jié)尾，變y為i，再加ed,eg：carried，worried，tried，cried過去分詞(不規(guī)則變化)詳見教材P136-P137AAA型costcostcostAAB型beatbeatbeatenABA型becomebecamebecomeABB型bringbroughtbroughtABC型beginbeganbegun寫出下列詞的過去分詞workcrylikehelpstaycookbegivemake_findhearcut(三)課堂探究練習1：用already,yet,ever,never,just填空Haveyouseenthefilm( )?Haveyoudoneyourhomework( )?-Not( ),Iwilldoitaftersupper.Haveyou( )beentoEngland?-No,( ).Ihave( )finishedreadingthebook.Ihave( )paidforthecar.練習2：用for,since填空Thewindhasblown( )2hours.Thedoghasstayedthere( )itateitsdinner.Theteacherhasthoughtabouttheproblem( )yesterday.Thehorsehasrun( )quitealongtime.Theduckshaveswum( )thirtyminutes.Thepoorchildhasworntheoldclothes( )7yearsold.havebeento,havebeenin,havebeenHavebeento去過某地，現(xiàn)在不在那里IhavebeentoParis.NowIamstayinginLuoyang.Havebeenin\at一直呆在某地，后接地點(in增大地點 at加小地點)IcametoLuoyangin2019.SoIhavebeeninLuoyangfor4yearsalready.Havebeen后接名詞和表狀態(tài)的詞組Ihavebeenateachersince2019.IhavebeenatNo.1MiddleSchoolfor2years.練習3：Someofushave Luoyangforonlyaweek.Susanhas inthisbandforoverfiveyears.Myfatherhas Guangdongseveraltimes.Ithas alongtimesinceIfirstmetJohnny.HelovesBeijingandhehas therequiteafewtimes.Judiehasalways agoodstudentandherclassmateslikeher.Tonyhas Americabefore,sothistimehewilltraveltoFrance.Betty’s athomeforthreedays.Shedoesn’tfeelinglikegoingout.Thebosshas theofficesinceearlythismorning.Heworkshard.(四)、現(xiàn)在完成時和一般過去時的區(qū)別現(xiàn)在完成時表示過去發(fā)生的某一動作對現(xiàn)在造成的影響或結(jié)果，強調(diào)的是現(xiàn)在的情況，所以它不能和過去具體的時間連用,而過去時能夠.一般過去時常和過去時間短語連用。He(work)inourschoolforo〃eyear.He(come)toourschoollastyear/in2019.They (cook)thesupperalready.They(cook)thesupperhalfanhourago.鞏固練習You’veneverseensuchawonderfulfilmbefore, ?Ahaven’ytouBhaveyouCdoyouDdon’tyou--AnnhasgonetoShanghai.---So herparents.A.doB.doesC.hasD.haveIhavewatchedthegame.--When you it?AhavewatchedBdowatchCdidwatchDwillwatchMr.Green inChinasincefiveyearsago.AlivedBhaslivedClivesDisgoingtoliveHisgrandma fortwoyears.AdiedBhasbeendeadCwasdeadDhasdiedWhereisHanMeinow?---She toShanghai.Shewillbebackintwodays.AhasgoneBhasbeenCgoesDhadgone--- totheUnitedStated? No,never,butIwenttoCanadaafewyearsago.A.DidyougoB.DoyougoC.HaveyoubeenD.HaveyougoneYouhaven’tchangedyourmind, ?AdoyouBareyouChaveyouDdidyou拓展延伸中考鏈接：（21永州）-youevertotheGreatWall?-Yes，Threetimes．（）A．Has，beenB．Have，beenC．Have，gone（21黑龍江）-MayIspeaktoMr.Lee?-Sorry，he Harbin，he thecityfortwodays．（）A.hasbeento；hasbeeninB.hasgoneto；hasbeentoC.hasgoneto；hasbeenin（21寧夏）-Look!Someonetheclassroom.-Well，itwasn'tme.Ididn'tdoit.（ ）A.iscleaningB.wascleaningC.hascleanedD.willclean（21威海）---Isthatanewcoat?---No，I itforalongtime.（）A.boughtB.haveboughtC.havehad（21武漢）Idon'tfeel