八年级下册Grammar课堂教学课件ppt

这是一份八年级下册Grammar课堂教学课件ppt，共22页。PPT课件主要包含了现在完成时，have，has，过去分词，past，present， years，现在完成时的含义，has played，have seen等内容，欢迎下载使用。

Learning aims
1.掌握现在完成时的基本结构、基本用法和动词过去分词的变化规律。2.理解并运用常和现在完成时连用的时间表达方式。3.能够在语境中正确运用现在完成时。
1.Read the fllwing sentences.(2′(1).I've lived here since I was brn.(2).Have yu ever mved huse?(3).Has the twn changed a lt ver the years?(4).The gvernment has turned part f the twn centre int a new park.(5).Hwever, mst f my ld friends have mved away.(6).It has becme impssible fr us t see each ther as ften as befre.(7).We‘ve lived in this area since then.(8).Have yu seen my fd?
1.以上的句子都用了_____________.句子中的_____ 和_____由主语确定。谓语动词用____________.它的结构是______________________________.
have/has+动词的过去分词
2.判断句中时态是一般过去时还是现在完成时。(3′(1).He went t the cinema last night.(2).He has already seen many great films.(3).Marry has frgtten t d her hmewrk.(4).They have been in Hng Kng since 1998.(5).We jined the drama club tw years ag.
3.理解现在完成时，给其定义.
Eddie has lived with Millie since he was brn.
Eddie has lived with Millie fr fur years.
Eddie was brn fur years ag.
(1).Read the fllwing sentences and understand the meaning f the present perfect tense.I have lived here since I was brn.Eddie has just eaten Hb’s fd.I have already read this bk many times.
表示从过去开始一直持续到现在的动作或状态。
表示过去发生，并对现在有一定影响的动作。
表示某事直到现在发生了许多次。
现在完成时用来表示之前已发生或完成的动作或状态，其结果和现在有联系，动作或状态发生在过去但它的影响现在还存在；也可表示持续到现在的动作或状态。
The Present Perfect Tense (现在完成时）
1.参阅P13和P122-123快速写出下列动词的过去式和过去分词。(4′Have a match. Wh writes best?be___________ __________ eat______ _____see______ _______ change______ ______mve_____ ______ live______ ______get_____ ______ becme_____ ______frget_____ _____ marry_______ ______stp______ ______ teach______ _______cme_____ ______ have______ ________
动词的过去分词变化规则可参阅动词的过去式变化规则
2.Finish Part A n Page 14.(3′Part Abrrwed/hped/made/gt/planned/cried/sent/watched/said/grwn/hit/enjyed
Guide Three
1.Read the cntext in the frm n Page12 and finish the fllwing blanks.(4′(1).主语是_____ _____ _____ _____时，用have…主语是____ ____ _____时，用has…(2).肯定句____________________________ 否定句_____________________________一般疑问句____________________________句中的have/has可看做助动词使用，have/has可直接在后面加______表否定，have nt=_______,has nt____; have/has也可直接___________表疑问。
2.Change them accrding t the requirements.(4'(1).Have yu ever mved huse?(否定回答)(2).Has the twn changed a lt ver the years?(肯定句)(3).The gvernment has turned part f the twn centre int a new park.(一般疑问句,并作出肯定回答)(4).Mst f my ld friends have mved away.(否定句)
3.Cmplete the sentences using the present perfect tense.
They ____________(finish) their hmewrk.2. Mr and Mrs Li ____________ (nt cme) back yet.3. Jhn __________(play) this cmputer game a few times.
haven’t cme
have finished
4. We ____________(nt see) that film yet.5. Mr Dng ____________(repair) ver ten bicycles since last Mnday.6. Yu _____________(nt visit) me fr a lng time.
haven’t seen
has repaired
haven’t visited
Cmplete the cnversatin using the crrect frms f the verbs in brackets.
Millie: (1)_____ yu ____(see) any exhibitins recently, Sandy?Sandy: N, I (2)_______. What abut yu?Millie: Well, I (3)________(see) ne. I saw it at the histry museum last week.Sandy: What’s it abut?
Have seen
Millie: I (4)_____________(frget) the title. It’s abut changes in Beijing ver the past century.Sandy: Oh, yes. I (5)__________(hear) abut it.(6)_____ yur cusin _____(g) with yu?Millie: N, he (7)______. He (8)________ (be) very busy this week.
have frgtten
如何识别运用现在完成时？现在完成时有一些时间标志词：already/yet/ever/fr/just/never/recentlysince/yet
Hw t use them?
选择正确的词填空（2′(1).I______cme back frm the supermarket. (fr/just/since)(2).I have_____ been t Chengdu. (fr/never/yet)(3).He has wrked there ______ he left schl. (already/just/since)(4).She has knwn Sam______ nine years. (fr/never/since)(5).Have yu_____ ridden a hrse? (ever/fr/yet)
Practice in class(10′
Finish Part B C n Page14.