Presentperfecttense(1)現(xiàn)在完成時(shí)(1)能夠理解現(xiàn)在完成時(shí)的意義和用法，總結(jié)現(xiàn)在完成時(shí)的語法規(guī)則。能夠用現(xiàn)在完成時(shí)進(jìn)行句子寫作。能夠用現(xiàn)在完成時(shí)改寫句子。adj.完成時(shí)的perfectpresentperfect現(xiàn)在完成式pastperfect過去完成式n.一排，一行rowThereisarowoftreesinfrontofthehouse.房子前面有一排樹。n.身高；高，高度heightPleasestateyourheightandweight.請報(bào)一下你的身高和體重。Sheisthesameheightashersister.她和她姐姐一樣高。Readthesentencesfromthereadingpassageandsummarisethegrammarrules.(a)Ihaven’ttoldMaddiethewholestoryyet.(b)IhavealreadylearntthatIamwhatIam.Nowfindonemoresentenceswiththesestructuresinthereadingpassage.Ihaven’ttoldMaddieyethowshehaschangedme.現(xiàn)在完成時(shí)(1)規(guī)則形式：動詞過去分詞的規(guī)則構(gòu)成與其過去式的構(gòu)成相同?，F(xiàn)在完成時(shí)的構(gòu)成：助動詞have/has+動詞的過去分詞work

→

worked,pollute

→

polluted，plan

→

planned，carry

→

carried等。動詞的過去分詞：不規(guī)則形式：不規(guī)則動詞的過去分詞需牢記。be-was/were–beendo-did–doneeat-ate–eatengo-went-gonesee-saw–seenfind-found–foundhave-had–hadmake-made-madeput-put–putlet-let–letbecome-became-becomegrow-grew-grownhit-hit-hithold-held-heldleave-left-leftrise-rose-risensend-sent-sentbegin-began-begunbreak-broke-brokenbring-brought-broughtbuild–built–builtbuy-bought–boughtcatch-caught–caughtcome-came-comecost-cost–costcut-cut–cutdrink-drank–drunkfall-fell-fallenfeel-felt–feltforget-forgot–forgottenget-got-gottengive-gave-givenkeep-kept-keptknow-knew-knownlose-lost-lostread-read-readrun-ran-runsay-said-said現(xiàn)在完成時(shí)還可表示到目前為止已經(jīng)完成的事情?，F(xiàn)在完成時(shí)的用法:現(xiàn)在完成時(shí)可表示過去發(fā)生或已經(jīng)完成的動作對現(xiàn)在造成的影響或結(jié)果。e.g.Thechildrenhavereadthebook.(強(qiáng)調(diào)孩子們已經(jīng)了解了這本書的大概內(nèi)容。)Hiselderbrotherhasbecomeadoctor.(強(qiáng)調(diào)他的哥哥現(xiàn)在是一名醫(yī)生。)e.g.Myaunthastravelledallovertheworld.e.g.Thechildrenhavenot/haven’treadthebook.Hiselderbrotherhasnot/hasn’tbecomeadoctor.現(xiàn)在完成時(shí)的其它句式結(jié)構(gòu)否定句：主語+have/has+not+動詞的過去分詞（+其它）.(其中havenot=haven’t;hasnot=hasn’t)一般疑問句及其簡略回答：Have/Has+主語+動詞的過去分詞（+其它）?肯定回答：Yes,

主語(人稱代詞主格)+have/has.否定回答：No,

主語(人稱代詞主格)+haven’t/hasn’t.e.g.—Havethechildrenreadthebook?—Yes,theyhave./No,theyhaven’t.—Hashiselderbrotherbecomeadoctor?—Yes,hehas./No,hehasn’t.現(xiàn)在完成時(shí)常與just,already

或yet

等表示時(shí)間的狀語連用。e.g.Ihave

just

heardthenews.Astronautshave

already

beentothemoon.Wehave

just

startedtoexploreotherplanets.現(xiàn)在完成時(shí)的標(biāo)志詞可以看出，just用來表示“剛剛”，already用來表示“已經(jīng)”，兩者都用于肯定句中，一般是置于have/has之后。在否定句中則可以用yet，表示“還未”，有“以后可能會”的含義。e.g.Thescientistshavenotheardfromityet.

Manhasnotdiscoveredanylifeinspaceyet.現(xiàn)在完成時(shí)在表達(dá)經(jīng)歷時(shí)表示該事件是在現(xiàn)在之前的某一個(gè)時(shí)間里發(fā)生的，重點(diǎn)在于已完成動作對現(xiàn)在的影響。而一般過去時(shí)則表示在過去某一具體時(shí)間發(fā)生的事情。e.g.Ihave

just

been

toLondon.Iwenttherelastmonth.

Ihave

already

finishedmyhomework.Ifinisheditanhourago.現(xiàn)在完成時(shí)與一般過去時(shí)在沒有明確的過去時(shí)間狀語時(shí)，如何判斷該用現(xiàn)在完成時(shí)還是一般過去時(shí)呢？判斷的標(biāo)準(zhǔn)是看該行為是否對現(xiàn)在有影響，也就是說該句所強(qiáng)調(diào)的是什么。試看以下對話：A:Wherehaveyouputmybook?Ican’tfindit.

B:Iputitonyourdeskyesterday.該對話中，當(dāng)A問對方把自己的書放在何處時(shí)，A強(qiáng)調(diào)的是現(xiàn)在找不到了，因此用現(xiàn)在完成時(shí)。但是B回答時(shí)只是說明當(dāng)時(shí)放的位置，所以用一般過去時(shí)。A:Wouldyouliketogoandseethefilmwithmetonight?

B:Sorry,Ihaveseenitalready.對話中的現(xiàn)在完成時(shí)表示對結(jié)果的強(qiáng)調(diào)：電影看過了，所以不想再看了。再看下面的對話：Writesentenceswiththepresentperfecttense.1.I/just/cutmylonghair__________________________________________________2.She/never/worryabout/herlooks__________________________________________________3.I/just/paintabeautifulflower/onmyface__________________________________________________4.Chris/always/wear/glasses__________________________________________________5.Jessica/already/changeheropinion/onherlooks__________________________________________________Jessicahasalreadychangedheropiniononherlooks.Ihavejustcutmylonghair.Shehasneverworriedaboutherlooks.Ihavejustpaintedabeautifulfloweronmyface.Chrishasalwayswornglasses.I________________(always,be)thetalleststudentinmyclass.AndI________________(always,sit)inthelastrowatschool.Peoplealwayslookatmeinsurprise.“Youmustbegoodatbasketball,”myclassmates________________(always,say).Infact,I'mnotgoodatbasketballatall.Butbeingtallisnotalwaysbad.Itmakesmeeasytorecognise,andIcanhelpotherpeoplegetthingsdown.Overtime,I________________(learn)toacceptmyheight,I'mproudofmyself.Rewritethepassageusingthepresentperfecttense.havealwaysbeenhavealwayssathavealwayssaidhavelearntⅠ.

寫出下列動詞的過去分詞。1.call_______

2.move_______

3.cry_______4.stop_______

5.speak_______

6.teach_______7.build_______8.decide_______

9.show_______10.put_______calledmovedcriedstoppedspokentaughtbuiltdecidedshownputⅡ.

根據(jù)語境及括號內(nèi)所給詞語提示填空。1.—Wouldyoulikesomemorefood?—No,thanks.I______________(have)enough.2.—_____________you_____________(see)mybag?Ican’tfinditanywhere.—No,Ihaven’t.3.—Mom,canIgotoplaybasketballwithmyfriends?—No,youcan’t.You______________(notwash)yourdirtyclothes.havehadHaveseenhaven’twashed4.—Let’svisitthesciencemuseumthisafternoon,Sam.—I______________(visit)ittwice.I’dliketovisitthecityzoo.5.Youdon’tneedtocleanthehouse.Emily______________(clean)it.havevisitedhascleanedⅢ.

根據(jù)所給漢語意思完成英語句子，每空一詞（含縮略形式）。1.

我們已經(jīng)找到了那個(gè)丟失的男孩。We________________thatlostboy.2.

這些天，他沒有見到Jack。He________________Jackthesedays.3.Robert已準(zhǔn)備好了一切。Robert___________________everythingready.havefoundhasn’tseenhasgot/gotten4.

你把數(shù)學(xué)書32頁的練習(xí)題寫完了嗎？________you________writingthe