八年級英語.下人教版Unit8GrammarFocus(

4a-4c)

寧夏西吉縣第三中學王碧天Readthefollowingsentenceswehaveseen.Haveyouread

LittleWomenyet?Yes,Ihave./No,Ihaven't.HasTinaread

TreasureIslandyet?Yes,shehas.Shethinksit’sfantastic.Haveyoudecidedwhichbooktowriteaboutyet?Yes,Ihave.I’ve

already

finishedreadingit.Itwasreallygood.GrammarThePresentPerfectwithalready,yet1.Haveyouwateredtheplantsyet?Yes,Ihavealreadywateredthem.2.Haveyoufinishedyourhomeworkyet?Yes,Ihavealreadyfinishedit.3.Haveyoufoundyourbikeyet?Yes,Ihavealreadyfoundit.Presentperfect現在完成時：表示過去發生或已經完成的某一動作對現在造成的影響或結果，或從過去開始一直延續到現在的動作或保存的狀態?！瘳F在完成時的構成:現在完成時是由“助動詞have/has+動詞的過去分詞”構成。助動詞要和主語的人稱、數保持一致。一般疑問句：have/has…?Yes,Ihave.No,Ihaven’t.Yes,shehas.No,shehasn’t.havebreakfastI’mnothungrynowmovedherein2004Istillliveherenowpast現在完成時

現在完成時態可用于表達剛剛做完某事或已經做完某事,常見的標志詞有already,yet等。下面我們一起看看這幾個詞的用法:(1)already意為"已經",常放在have/has和動詞之間,通常用于肯定句中。如:Theyhavealreadyarrivedatthehospital.

他們已經到達醫院了。already也可用于疑問句，表示期望得到肯定的回答或表示驚異，此時常放在句末。(2)yet多用于否定句中,意為"還(沒)"；也常用于疑問句中,意為"現在,已經"。如:Thesunhasnotrisenyet.

太陽還沒有升起。

Hasthemanfinishedtheworkyet?

這個男人做完工作了嗎?Don’tworryabouthim.Hehas________arrivedathomesafely.2.Haveyoutoldhimthenews______?3.Ihave____________eatensomerice.NowIamfull.yetalreadyalreadyyetalreadyPracticeCompletethesentenceswiththewordsinthebox.()Haveyoufinishedyourhomework____?—No,not____.A.yet,already

B.yet,yet

C.already,yet

D.already,already分析：此題應該選用B項。前面為疑問句，后面是否定回答，故兩處空格均應該用yet。B()---HasJim____cleanedhisbedroom?---Yes,hehascleanedit________.A.just,yet

B.already,just

C.just,already

D./,already分析：此題應該選用D項。前面為疑問句，一般不用just/already提問，故A、B、C項都是錯誤的，后面是肯定結構，故應該用already。D()Jim,haveyouhadyourlunch______?It’sonly10:30inthemorning.A.yet

B.justnow

C.just

D.already分析：此題應該選用D項。前面為疑問句，但是從“It’sonly10:30inthemorning.”中可以看出問話人非常驚訝，故應該用already連接。D動詞的過去式的變化和過去分詞的變化并不完全相同。我們對它們作了一個大致的分類。(注：例子中單詞的變化順序為：動詞原形→動詞的過去式

→動詞的過去分詞)一、過去式和過去分詞的變化相同規則變化：一般在動詞詞尾直接加ed。如：pick→picked→picked;wish→wished→wished;stay→stayed→stayed2.以不發音的e結尾的動詞后面加d。如：like→liked→liked;hope→hoped→hoped;phone→phoned→phoned3.以“輔音字母+y”結尾的動詞，變y為i，再加-ed。如：study→studied→studied;hurry→hurried→hurried;reply→replied→replied4.詞尾只有一個輔音字母的重讀閉音節動詞，要雙寫輔音字母，再加-ed。如：stop→stopped→stopped;clap→clapped→clapped不規則變化：5.以不變應萬變。如：let→let→let;put→put→put;read→read→read6.若中間有雙寫e，則去掉一個e，單詞末尾再加t。如：feel→felt→felt;keep→kept→kept;sleep→slept→slept7.結尾的字母d變t。如：lend→lent→lent;build→built→built;send→sent→sent8.變為以-ought或-aught結尾。如：buy→bought→bought;bring→brought→brought;catch→caught→caught;teach→taught→taught活學活用1.Writetheformsofthepasttenseandpastparticiple:drink____________see____________find____________leave____________tell____________drankdrunksawseenfoundfoundleftlefttoldtold—WhyisMr.Yangstillintheteachers’office?—Maybehe________hisworkyet.A.doesn’tfinishB.hasn’tfinishedC.haven’tfinishedB

現在完成時：表示過去發生或已經完成的某一動作對現在造成的影響或結果，或從過去開始一直延續到現在的動作或保存的狀態，強調的是現在的情況，不能和表示過去的時間狀語連用（如：in1990，lastSunday等）。

一般過去時：一般過去時只表示過去的動作或狀態，和現在不發生關系（即動作或狀態在現在已經結束），它可以和表示過去的時間狀語連用?，F在完成時與一般過去時的區別：Isawthisfilmyesterday.

（強調看的動作發生過了）

Ihaveseenthisfilm.（強調對現在的影響，電影的內容已經知道了）

Whydidyougetupsoearly?（強調起床的動作已發生過了）

Whohasn'thandedinhispaper?（強調有卷子未交，疑為不公平競爭）4aUsethewordsinbracketstocompletetheconversations.1.A:Wouldyoulikesomethingtodrink?B:No,thanks.______________________.(just/drinksometea)2.A:Iheardyoulostyourkey.___________________________________?(find)B:No,notyet.I’vejustdrunksometeaHaveyoufoundityet?3.A:DoyouknowwhenTomisleaving?B:______________________.(already/leave)A:When_____________________?(leave)B:Thismorning.4.A:Isyoursistergoingtothemovieswithustonight?B:No._____________________________.(already/seethefilm)Tom/HehasalreadyleftdidheleaveShehasalreadyseenthefilm5.A:Whatdoyourparentsthinkaboutourplan?B:I____________________________.(not/tellthem/yet)havenot/haven’ttoldthemyet4bFillintheblankswiththecorrectformsofthewordsinbrackets.Sally_________(love)reading.Inthemorning,shereadsthenewspaperandintheeveningshereadsbooks.She________already_________(read)morethan100differentbooks!Herfavoritekindofbooksissciencefiction.Sheisinterestedinscienceandtechnologyandlovestoimaginewhattheworld_______(be)likein50years.loveshasreadwillbeShe_______(finish)readingabookaboutrobotslastweekand_________(write)abookreportaboutitnextweekforherFrenchclass.Everytimesheisinthelibrary,Sallylooksatthemanybooksshe_____________(notread)yetandshecan’twaittoreadthem!finishedwillwritehasnotreadA:Whatbookshaveyoualreadyread?B:IhavealreadyreadTomSawyerand

HarryPotter.A:Whatdoyouthinkofthem?B:Well,IthinkHarryPotterwasexciting,butTomSawyerwasabitboring.4cCompletethechartwithinformationaboutyouandafriend.GroupworkYouYourfriendCommentsBooksIhavealreadyreadMoviesIhavealreadyseenSongsIhavealreadyheardA:Whatthingshaveyoualreadydonethisweek?B:Ihavealready…A:Whatthingshaven’tyoudonethisweek?B:Well,Ihaven’t…Howaboutyou?A:Ihave…句型轉換1.Ihavefinishedmyhomework.(改為否定句)①I____________myhomework.②—______you______yourhomework?(改為一般疑問句并作肯定回答)

—Yes,____________.haven’tfinishedHavefinishedIhave2.Hisdreamhascometrue.(改為一般疑問句并作否定回答)---______hisdream______true?---No,____________.Hascomeithasn’t()I_____scaredofdogseversinceadoghurtmewhenIwasfiveyearsold.（2015杭州）A.willbe

B.wasC.havebeen

D.wouldbe()－BenandSuearen’thome,arethey?

－No.They_____toLondononbusiness.（2015江西）A.havegoneB.goC.havebeenD.willgoC中考鏈接A()MissBrown,we_____cleaningourclassroom.Canwegohomenow?（2015廣州）A.finishB.finishingC.arefinishedD.havefinishedD()Sofar,theAIIB（亞投行）_____57countriestobethefoundingmembers.（2015福州）A.attractedB.hasattractedC.willattractB()—Dave,wewillleavein10minutes.Areyouready?—No,I______ourguidebookandtowelsyet.(2013廣西玉林)A.don'tpack B.didn'tpackC.havepackedD.haven'tpackedD()—WhyisMr.Yangstillintheteachers’office?—Maybehe______hisworkyet.(2013四川涼山)A.doesn’tfinishB.hasn’tfinished

C.haven’tfinishedB()—Whenandwheretospendtheholiday_______yet.—Let’smakeitnow.(2012湖北隨州)A.isdecidedB.doesn’tdecideC.hasnotbeendecidedD.hasdecidedC()Ibeganwatchinghereanhourago,butnownothing________yet.(2012綿陽市)A.happensB.willhappenC.happenedD.hashappenedD()—WillyougoandseethemovieNetMotherwithme?—Thankyou.ButI_____italready.(2012山東濟寧)A.sawB.haveseenC.seeD.willseeB()—IsBohaiBridgeopentothepublicyet?—Yes.It______foralmostoneandahalfmonths.(2011新疆阜康)A.hasopened B.ha