初中八年级英语课件Grammar Present perfect tense 省赛一等奖

Grammar:PresentperfecttenseLearningaims:1.Masterthestructureandbasicusageofpresentperfecttense(PPT).（掌握现在完成时的用法、基本结构。）2.Mastertherulesofformingthepastparticipleofverbs.（掌握动词的过去分词变化规则。）3.Mastersometimeexpressionsusuallyusedinpresentperfecttense(

PPT).（掌握常用在现在完成时里的时间表达方式。）Task1.现在完成时的主要用法IhavewrittensomewordsontheBbalready.Task2.

现在完成时结构：IhavebeenateachersinceIleftmycollege(大学).Discussion:Whatnewstructurecanyoufindinthesesentences?Ihavebeenateacherfor12

years.Ihavewatched

theTVshowmanytimes.—————————————————————————__________________v过去分词have/has+Wemakenegativestatementsinthepresentperfecttenselikethis:I/You/We/They

openedthedoor.He/She/It

havenot=haven’thasnot=hasn’tTask3.

现在完成时否定和一般疑问句。havehasnotHavealooknotchangealotthestudentsThestudentshaven’tchangedalot.Let’spractisenotcomebackhome

mymother

Mymotherhasn’tcomebackhome.练一练Whohavedonehaven’tdoneWecleantheroomcleanthewindowsee(seen)afilmcookdinnerTheySheclimbthetreego(gone)toBeijingvisittheGreatWallMyfather例：1.We_____________theroombutwe_______________thewindow.havecleanedhaven’tcleanedHeclimbthehillfinishherhomeworkwatchBeijingOperaWeaskandanswerquestionsusingthepresentperfecttenselikethis:I/you/we/theyopenedthedoor?he/she/itI/you/we/theyhe/she/itI/you/we/theyhe/she/itHaveHasYes,No,have.has.haven’t.hasn’t.carrytheheavyboxescarriedtheheavyboxesA:

Havethey…?

B:Yes,theyhave./No,theyhaven’t.Let’spractisestopataxistoppedataxiA:

Hasshe…?

B:

Yes,shehas./No,shehasn’t.Let’spractise练一练Whohavedonehaven’tdoneWecleantheroomcleanthewindowsee(seen)afilmcookdinnerTheySheclimbthetreego(gone)toBeijingvisittheGreatWallMyfather例1.______you________theroom?Yes,_________.2.______you_______thewindow?No,_________.HavecleanedwehaveHavewehaven’tcleanedHeclimbthehillfinishherhomeworkwatchBeijingOpera1.Youhavedoneagoodjob.

2.Thestudentshaven’tchangedalot.

3.Havetheycarriedtheheavyboxes?

4.Hasshestoppedataxi?Task4:动词的过去分词的构成过去分词（P.P.）(A)

规则动词：规则动词的过去分词的构成规则与规则动词的过去式的构成规则相同。四点变化规则：

(4)、重读闭音节结尾，末尾只有一个辅音字母，先双写该辅音字母，再加“ed”

(1)、一般动词，在词尾直接加“ed”

(2)、以“e”结尾的动词，只在词尾加“d”

(3)、以“辅音字母+y”结尾的动词，将“y”变为“i”，再加“ed”

work---worked---worked,visit---visited---visited

live---lived---lived,move---moved---movedstudy---studied---studied,cry---cried---cried

stop---stopped---stopped,drop---dropped--dropped

borrow___________watch___________hope____________arrive__________decide___________move___________enjoy___________carry___________try____________study__________fit____________plan__________mop___________stop__________send___________hit___________记一记，练一练borrowedhopedwatchedplannedenjoyedcarriedarrivedtriedfittedstudiedmovedmoppedstoppedsenthitdecidedNochangecome→comehurt→hurtChangethevowelhold→heldwin→wonChangetheconsonantlend→lentbuild→builtChangethevowel(s)andtheconsonant(s)catch→caughtkeep→keptforget→forgottentell→toldOthersbe→beenhave→hadfall→fallenfly→flowndraw→drawnsee→seen(B)

不规则动词：见课本第122.123页。Thefollowingshowsmoreexamplesofthepastparticiplesofsomeverbs.BaseformPastparticiplehitputmeetmakesellgivewritethinkhitputmetmadesoldgivenwrittenthoughtLetmetestyourmemory!写出下列动词的过去分词livefinishtryplanhitmeetputcatchstop用现在完成时完成下列句子：(p14)1.They______________(finish)theirhomeworkalready.2.John_______never_______(visit)China.3.MrLi______________(repair)overtenbicycles

since

Monday.4.We________________(notsee)eachotherforyears.5.Myparents______________(notcome)back

yet.

6.Ourteacher_____________(teach)usalotaboutthehistoryofChina

recently(最近，进来).havefinishedhasvisitedhasrepairedhaven’tseenhaven’tcomehastaughtTask5:现在完成时的时间状语现在完成时的时间状语◆常与与现在完成时连用的时间状语，如:_____________________________________________________________________________等◆还与表示一段时间的状语连用，如:____________________________◆还常和表示次数的时间状语连用，如:__________________________上一页下一页主菜单already,never,ever,yet,recently,just,sofar,overtheyears,inthepastfewyearssince…,for+一段时间once,twice,manytimes

12345智力大考验Task6:巩固练习

现在完成时的构成现在完成时的主要用法现在完成时的时间状语过去分词的构成Task7:Conclusion现在完成时Task8:Homework1.复习现在完成时的构成与用法。2.背诵本节课不规则动词的过去分词。3.完成练习册上相关练习

Classisover.Classbegan45minutesagoClasshasbeenonfor45minutes.1.I’vealreadyhaddinner.(否)I_____________dinner_____.2.Theyhavedonetheirhomework.(疑)

_____they_____theirhomework?haven’thadyet

1.将下列句子改为否定句或疑问句。Havedone

give________drop________make_______put________come_______visit________cry________pay________givenputmadecomepaidcried2.写出下列动词的过去分词droppedvisited3.Tobeareporter!Intervieweachotherlikethis:A:Whathaveyoudonetoday?B:Ihave___________today.4.Chattime(p14):

Millie:(1)_____you______(see)anyfilmsrecently,Sandy?Sandy:No,Ihaven’t.Whataboutyou?Millie:I(2)________(see)onelastSaturday.Sandy:What’sitabout?Millie:It’saboutthechangesinBeijingoverthepastcentury.Fromthefilm,I(3)______________(learn)moreaboutBeijing’spastandpresent.Sandy:Oh,IthinkI(4)__________(hear)aboutthefilm.DoyouplantoseeitagainMillie:Yes,I’dliketo.Have

seensawhavelearnthaveheard1.Hehas_________visitedmany

placesinChina.

2.Thetrainhasn’tarrived_________.

3.Hasshearrived_________?

4.Hasn’thecomeback_________?上一页下一页Tips★already是“已经”之意，用在________中。yet用在_______________中，在否定句中有“还”之意。alr