Unit1 第3課時 Grammar：現(xiàn)在完成時（一）課件 2022-2023學年牛津譯林版英語八年級下冊

Unit1Pastandpresent第3課時Grammaradv.還，仍adv.近來，最近adj.過去的→___________adj.LookandReadyetrecentlypastrecentThink&Answer他父母結(jié)婚時，他住在蘇州。MyparentshavelivedinSuzhousincetheygotmarried.HelivedinSuzhouwhenhisparentsgotmarried.自從我父母結(jié)婚以來，他們一直住在蘇州。When

doweneedtousethepresentperfecttense?現(xiàn)在完成時的定義①Weusethepresentperfecttensetotalkaboutanactionthatstartedinthepastandcontinuestothepresent.IhavelivedheresinceIwasborn.HehaslivedheresincehecametoNanjing.②Weusethepresentperfecttensetotalkaboutanactionthathappenedinthepastandhasaconnectionwiththepresent.Eddie

has

justeaten

Hobo’sfood.(Eddieatethefood,andnowHobohasnothingtoeat.)Ihavelostmymobilephone.(Ilostmymobilephone,andnowIhavenomobilephonetouse.)③Wealsousethepresentperfecttensetotalkabouthowmanytimesanactionhashappenedtillnow.Ihavealreadyreadthisbookmanytimes.Wecanusethesetimeexpressionswiththepresentperfecttense.alreadyyeteverneverjustrecentlysincefor+一段時間manytimes1.現(xiàn)在完成時的肯定句句型

主語（I/You/We/They）+has

（He/She/It）+have

+過去分詞用have/has填空They______

seenthatfilmbefore.Greatchanges_____takenplaceinChinaoverthepast10years.Myfamily______livedinthisareasince15yearsago.2.現(xiàn)在完成時的否定句句型

主語+have/has+not+過去分詞+……Ihaveseenthemovie.(改為否定句)Ihaven’tseenthemovie.hasn’t=hasnothaven’t=havenotPractice:1.They_______________________(notfinish)theirhomeworkyet(還未).2.He________________________(notfinish)his

homeworkyet.havenot/haven’tfinishedhasnot/hasn’tfinished3.現(xiàn)在完成時的一般疑問句句型Have/Has+主語+過去分詞+……Yes,主語+have/has.No,主語+have/hasnot.Shehasarrivedhere.(改為一般疑問句，并作肯定/否定回答)Hasshearrivedhere?Yes,shehas./No,shehasn’t.4.現(xiàn)在完成時的特殊疑問句句型特殊疑問詞+have/has+主語+p.p+其它？e.g.ThegirlhaslearnedEnglishfor6years.

Howlong

hasthegirllearnedEnglish?Ihaveeatentwoapplesforbreakfast.

What

have

youeatenforbreakfast?HaveatryShehascleanedthekitchen.(改為否定句)She________cleanedthekitchen.2.TheyhavevisitedsomeinterestingplacesinChina.(改為一般疑問句)______they___________interestingplacesinChina?3.Thepoordoghasdied.(改一般疑問句并作否定回答）---_________thepoordog_________?---No,it__________.4.Theyhaveborrowedtenbooksfromthelibrary.(對劃線部分提問)____________books______they_________fromthelibrary?hasn’tHavevisitedanyHasdiedhasn’tHowmanyhaveborrowed過去分詞的變化規(guī)則大部分動詞+edfinished以e結(jié)尾的動詞+dchange以y結(jié)尾的動詞把y改為i+edcarry以重讀閉音節(jié)結(jié)尾的動詞雙寫最后一個字母+edstopdiedped不規(guī)則變化AAA型hit-hit-hitAAB型beat-beat-beatenABA型come-came-comeABB型spend-spent-spentABC型do-did-doneHelp

themwritethepastparticiplesoftheverbsbelow.1

borrow

2

hope

3

make

4

get

5plan

6

cry

7send

8watch

9

say

10

grow

11

hit

12

enjoy

ededednedddeiedidnto現(xiàn)在完成時--與already，yet，ever，never，just，recently連用1.already已經(jīng)，常用于肯定句中，不用于否定句。

Ihavealreadyseenthefilm.

我已經(jīng)看過這部電影了。2.yet1)已經(jīng)，常用在疑問句中。

HasLindareadthebookyet?

琳達已看過這本書了嗎?

2)還，仍然，常用于否定句。

Hehasnotbeguntoworkyet.

他還未開始工作。注意：當在肯定陳述句中含有already時，在轉(zhuǎn)換成否定句或疑問句時，要把句中的already去掉，在句末加上yet.

Ihaven’tseenthefilmyet.Ihavealreadycleanedthehouse.(改為一般疑問句)Haveyoucleanedthehouseyet?Ihaveseenthefilmalready.(改為否定句)--Haveyoudoneyourhomework?--Not______.(還沒有)yet3.ever曾經(jīng)，主要用于疑問句

Haveyouever

wantedtotravelaroundtheworld?

你曾經(jīng)想要周游世界嗎？4.never從來沒有，表示否定

Hehasneverseensuchatallbuilding.

他從未見過這么高的樓。5.just剛剛，常用于肯定句中

Ihave

justfinishedlunch.

我剛吃過午飯。

6.recently近來，最近

Ihaven’tseenthemrecently.

我近來沒見過他們。7.for+一段時間8.since+過去的時間點（2000/5yearsago）

+從句（一般過去時）Katehaslivedherefor3years.

凱特已經(jīng)在這住了3年了。Katehaslivedheresince3yearsago.KatehaslivedheresinceshecametoChina.*主句用現(xiàn)在完成時，從句用一般過去式。現(xiàn)在完成時的標志詞Eddie

has

eaten

Hobo'sfood

.just,already,neversince/for+時間時間狀語：sincethen,overtheyears,before,recently,overthepastcentury,overthepasttwohoursHasEddie

eaten

Hobo'sfood?everyet不同的標志詞所處位置不一樣還可以用于否定句，放于句末一般過去時與現(xiàn)在完成時有一些明顯的時間狀語：遇到y(tǒng)esterday,lastyear,inMay,in+過去某一年，twodaysago,justnow等就用一般過去時。當有in/over/duringthepast/lastfewyears(在過去/最近的幾年里),sofar,uptonow/tillnow（直到現(xiàn)在),manytimes（幾次）等常用現(xiàn)在完成時。

Helpthemcompletethesentences.6Ourteacher_______________(teach)usalotaboutthehistoryofChina.1

They_______________(finish)theirhomeworkalready.2John______never______(visit)China.3

MrLi_______________(repair)overtenbicyclessinceMonday.4

We_______________(notsee)eachotherforyears.5Myparents_______________(notcome)backyet.havefinishedhasvisitedhasrepairedhaven’tseenhaven’tcomehastaught單項選擇1．________he_________fromhisuncleyet? A．Does;hear B．Have;heard C．Has;heard D．Did;hear2．Mike______morethan800peopleinthelasttwoyears. A．isinterviewing B．hasinterviewed C．willinterview D．interviews3．Ihave________alargepackageofpresents. A．prepare B．prepared C．prepares D．preparing單項選擇4．—WouldyouliketowatchthemovieHarryPotterwithmetonight?—Sorry,I______itmanytimes.A．watch

B．havewatched

C．willwatch

D．waswatching5．Haveyouever________anythingyoudidn'twanttosay?A．say

B．said

C．saying

D．say1.

I___________(study)inAmericaforoverthreeyears.2.Theyoungman__________(live)alonesincehegraduatedfromcollege.3.ThisisthebestfilmthatI__________(see)sofar.4.—Hello.CanIspeaktoMissBrown?—Sorry,she__________(fly)toCanadaalready.She'llbebackinaweek.5.Inthepasttwoweeks,theartist__________(draw)manypicturesabouthishometown.6.I___________(know)Jimmyforovertwodaysandnowwearegoodfriends.haveknownExerciseshavestudiedhaslivedhaveseenhasflownhasdrawnhaven’tcleanedhasn’tfinishedhavelivedhavedecidedhaslearned/learntHaswritten7.—Whyarethewindowssodirty?—Becausewe_____________(notclean)themforaverylongtime.8.He_____________(notfinish)thehomeworkyet.9.Myfamily__________(live)inNanjingsince1996.10.They________already_________(decide)togotoKunmingfortheholiday.11.Thegirl________________(learn)Englishforabouttwoyears.12._____Tom________(write)letterstoyourecently?1.I’vealr