人教版八年級英語下冊Unit8-Section-A-Grammar-Focus-4a-4c課件

現(xiàn)在完成時

PresentPerfectTense

Unit8HaveyoureadTreasureIslandyet?SectionAGrammarFocus4a-4c現(xiàn)在完成時

PresentPerfectTense1Didyouspendtimewithyourmom?Didyouspendtimewithyourm2Mandy&MomIhavefinished

.Ihavecleaned

.Ihavemade

.

Mandy&MomIhavefinished3Ihavefinished

.Ihavecleaned

.Ihavemade

.

allmyhomeworkalltheroomssomedeliciousfoodPresentPerfectTense(現(xiàn)在完成時)MandysaidIhavefinished4Ihavefinishedallmyhomework.SoIcanrelaxnow.Ihavefinishedallmyhomewor5Ihavecleaned

alltherooms.Now,theroomsareclean.Ihavecleanedalltherooms.N6Ihavemade

somedeliciousfood.Somomcanenjoythefoodnow.Ihavemadesomedeliciousfoo7I

made

somefood.Momcanenjoyitnow.nowpast現(xiàn)在完成時表示_____發(fā)生的事情對______造成的影響或結果。過去現(xiàn)在Ihavemade

somedeliciousfoodformom.Imadesomefood.Momcanenjoy8探索一：現(xiàn)在完成時的基本結構Ihavefinishedallmyhomework.I

havecleanedalltherooms.Ihavemadesomedeliciousfood.基本結構：主語+have+過去分詞+其它

探索一：現(xiàn)在完成時的基本結構Ihavefinished9Mandy(have/has)finished

allherhomework.She

madesomedeliciousfood.She

cleaned

alltherooms.hashashas現(xiàn)在完成時：主語+have/has+過去分詞+其它

第三人稱單數(shù)Mandy(have/has)S10Trytofindtherule.finishfinished

finished

動詞原形過去式過去分詞

規(guī)則變化-edcleancleaned

cleaned

makemademade不規(guī)則變化Trytofindtherule.finish11Doyouknowthepasttense(過去式)

andthepastparticiple(過去分詞)ofthesewords?(P136)buyfindhearleavereadseetellPairworkDoyouknowthepasttense(過去式12seereadfindhearleavetellbuyread–read–readfind–found-foundhear–heard–heardleave–left–lefttell–told–toldbuy–bought–boughtsee–saw-seenReady?goseereadfindhearleave13

Henot

hasTheyhavecleanedalltherooms.探索二：現(xiàn)在完成時的句型轉換

思考否定句在_____________后面加not。

notfinishedhishomework.

have或has

havenot=haven’thasnot=hasn’tHenothasTheyhavecleanedallt14探索二：現(xiàn)在完成時的句型轉換

They

havecleanedalltherooms.He

has

finishedallhishomework.

Have?theyHas

?he思考一般疑問句把______________調到主語前面,回答時，也要使用_______________.

have或has

have或has—Yes,theyhave./No,theyhaven’t.—Yes,hehas.—No,hehasn’t.探索二：現(xiàn)在完成時的句型轉換

Theyhaveclean15探索三：現(xiàn)在完成時的標志詞Whatarethekeywordsforthepresentperfecttense?探索三：現(xiàn)在完成時的標志詞Whatarethe16A:Ihavealreadyfinishedmyhomework.Haveyoufinishedyourhomeworkyet?B:No,Ihaven’tfinishedityet.現(xiàn)在完成時標志詞：already,yet意思句型

already

yet“已經”肯定句“已經”一般疑問句“還（沒）”否定句A:Ihavealreadyfinishedmy17

E.g.Jimhas

already

finishedhiswork.（肯定句）

我們已經把教室打掃干凈了。我們還沒把教室打掃干凈。你們已經把教室打掃干凈了嗎？We__________________upourclassroom.We______________upourclassroom_____._______________upyourclassroom_____?←（否定句）Jimhasn’tfinishedhisworkyet.←（一般疑問句）

HasJimfinishedhisworkyet?舉一反三havealreadycleanedhaven’tcleanedyetHaveyoucleanedyet我們已經把教室打掃干凈了。We__________18十秒搶答十秒搶答19用already或yet填空：Ihavenotfinishedmyhomework______.Hehas________workedinthecityforeightyears.Haveyouseenthenewmovie_______?Stop!yetalreadyyet用already或yet填空：Stop!yeta20用所給詞的適當形式填空：1.Tom____________(notfind)hiswatchyet.2.—_______you________(tell)Sandythegoodnewsyet?

—No,I________.hasn’tfoundStop!Havehaven’ttold用所給詞的適當形式填空：hasn’tfoundStop21用所給詞的適當形式填空：1.—_______yourbrother_______(leave)Shanghaiyet?

—Yes,he_______.2.—When_______you________(buy)thedress?

—Twoweeksago.Stop!Haslefthasdidbuy用所給詞的適當形式填空：Stop!Hasleft22比較：1.Mike:Whatdidyoudolastweekend?Jenny:Isawanewmovie.

(只談論上周末做的事情，不涉及現(xiàn)在)2.M:Wouldyouliketoseethemoviewithme?J:Thanksforyourinviting,butIhaveseenitalready.

(影響：因為已經看過了，所以現(xiàn)在不去看了)一般過去時現(xiàn)在完成時用法不同只表示過去的動作或狀態(tài)(不涉及現(xiàn)在)表示過去發(fā)生的事情對現(xiàn)在造成的影響或結果(與現(xiàn)在有聯(lián)系)Ihavevisitedmygrandparentsyesterday.Hehasfinishedhisworktwodaysago.時間狀語不同yesterday,lastweek,…ago,justnowWhen…?…already,yet,ever,never,for,since…（注：不能與表示過去的時間狀語連用）××綜合提升比較：一般過去時現(xiàn)在完成時用法不同只表示過去的動作或狀態(tài)表231.—When______Tom______(leave)hisoffice?—He______aboutfiveminutesago.2.I______thebookclublastweekandI______twobooksalready.A.join;readB.joined;readC.joined;havereadD.joined;hasread

didleaveleft【即學即練】

1.—When______Tom______(le241.A:Wouldyoulikesomethingtodrink?B:No,thanks.______________________.(just/drinksometea)2.A:Iheardyoulostyourkey.____________________?(find)B:No,notyet.3.A:DoyouknowwhenTomisleaving?B:____________________.(already/leave)4aUsethewordsinbracketstocompletetheconversations.(P60)I’vejustdrunksometeaHaveyoufoundityetHehasalreadyleft1.A:Wouldyoulikesomething25A:When________________?(leave)B:Thismorning.4.A:Isyoursistergoingtothemovieswithustonight?B:No.___________________________.(already/seethefilm)5.A:Whatdoyourparentsthinkaboutourplan?B:I____________________________.(not/tellthem/yet)didheleaveShehasalreadyseenthefilmhaven’ttoldthemyetA:When________________?26Sallyisabooklover.Herfavoritekindofbooksissciencefiction.Sheisinterestedinscienceandtechnology.

sciencefiction科幻小說科技ShealsolearnsFrench.法語[tek?n?l?d?i]Sallyisabooklover.Herfav274bFillintheblankswiththecorrectformsofthewordsinbrackets.loveshasread溫馨提示：確認時間標志，用對時態(tài)結構！Sally _______(love)reading.Inthemorning,shereadsthenewspaperandintheeveningshereadsbooks.She_____already ______(read)morethan100differentbooks!Herfavoritekindofbooksissciencefiction.Sheisinterestedinscienceandtechnologyandlovestoimagine4bFillintheblankswithth28willbefinishedwillwritehasn’tread溫馨提示：確認時間標志，用對時態(tài)結構！whattheworld _______(be)likein50years.She__________(finish)readingabookaboutrobotslastweekand_____________ (write)abookreportaboutitnextweekforherFrenchclass.Everytimesheisinthelibrary,Sallylooksatthemanybooksshe_____________(notread)yetandshecan’twaittoreadthem!

can’twaittodosth迫不及待做某事willbefinishedwillwritehasn’29Whathaveyoudoneforyourmother?Makeadialogueusingthepresentperfecttense.Children:HappyMother’sDay,Mom!Mother:Thankyou.C1:Look,Mom!Ihavemadeacardforyou.C2:Ihavecleanedalltherooms.C1:Ihavewashedalltheclothes.C2:AndIhavecookedabigdinnerforyou!M:Oh,you’resosweet!Thankyou,dears.GroupWorkChildren:HappyMother’sDay,Mom!Mother:Thankyou.C1:Look,Mom!I...C2:I…C1:I…C2:AndI…M:Oh,you’resosweet!Thankyou,dears.（3人一組進行情景表演。使用現(xiàn)在完成時句子越多，創(chuàng)新點越多，加分越多）Whathaveyoudoneforyourmo30Who'sthemostbeautifulwomanintheworld?Mother'sloveisthegreatestofall.Who'sthemostbeautifulwoman31

1.肯定句：Ihavealready

finishedmywork.否定句：Ihaven’tfinishedmywork

yet.一般疑問句：—Haveyoufinishedyourworkyet?

—Yes,Ihave./No,Ihaven’t.2.肯定句：Jimhas

already

finishedhiswork.否定句：Jimhasn’tfinishedhisworkyet.一般疑問句：—HasJimfinishedhisworkyet?

—Yes,hehas./No,hehasn’t.

Summary現(xiàn)在完成時：過去發(fā)生的事情對現(xiàn)在產生影響1.肯定句：Ihavealreadyfinishe32鞏固練習鞏固練習331.—You