動詞不定式是一種非限定性動詞省名師優(yōu)質(zhì)課賽課獲獎?wù)n件市賽課百校聯(lián)賽優(yōu)質(zhì)課一等獎?wù)n件

UnitOneMakingadifference1/28

PeriodfourGrammar2/28動詞不定式是一個非限定性動詞,由to＋動詞原形組成,但在有些情況下to能夠省略。動詞不定式在句中能夠作主語、賓語、表語、定語和狀語。Grammar--不定式3/28

Grammar--不定式的用法Tofinishsomuchhomeworkinadayisimpossible.Toseeistobelieve.Mywishistobeadoctor.Iwanttodoitmyself.4/28

Grammar--不定式的用法Wefounditdifficulttoworkwithhim.Healwayshasalotofmeetingstoattend.Heislookingforaroomtolivein.Istudyhardtoservethepeoplewell.Inordernottobelateshetookabus.5/28Grammar--不定式作主語常見帶形式主語it句型：1.Itiseasy(difficult,important,possible,necessary,good,kind,wise,foolish…)todosth.2.Itisapleasure(pity,crime,anhonor…)todosth.3.Ittakes(sb.)sometimetodosth.6/28Itisdifficulttounderstandhim.Itisapleasuretohelpyou.It'sagreathonortobeinvitedtoMary'sbirthdayparty.Ittakesmeanhourtocleantheroom.Grammar--不定式作主語7/28Grammar--不定式作表語不定式作表語時普通緊跟在系動詞be,seem,remain,appear,get等后面，用來說明主語內(nèi)容。常見主語有：one’sdream,business,wish,idea,plan,job,work,task,duty,whatonewantstodo…Mywishistobeadoctor.Mychiefpurposeistopointoutthedifficultiesofthematter.

8/28Grammar--不定式作賓語1.常見不定式作賓語及物動詞有：want,hope,wish,agree,promise,decide,determine,fail,manage,offer,prepare,pretend,choose,expect,refuseIliketokeepeverythingtidy.WhenIheardthewords,Ididn’tknowwhethertolaughortocry.IwanttospeaktoTom.9/28Grammar--不定式作賓語2.feel,find,judge,make,think,believe,consider+it+adj./n.+todosth.Hethoughtitagreatpitynottohaveinvitedher.Shemadeitaruletoget

upatfive.10/28Grammar--不定式作賓語補足語Theteachertoldusnottobesonoisyintheclass.Iexpectyoutogivemesomehelpintheexperiment.Fatherwillnotallowustoplayonthestreet.Webelievehimtobeguilty.11/28Grammar--不定式作賓語補足語一些動詞后作賓補不定式不帶to.一感：feel+sb+dosth.二聽:hear,listento三看:see,watch,lookat,observe,notice四使役:let,make,haveSuddenlywefelttheatmospheregrowtense.Whatmadehimdothatagainandagain?12/28Grammar--不定式作定語Ineedapen

towritewith.Inthedarkroom,heevenhadnobed

tosleepon.Ineedsomeone

totype

thelettersforme.Thebuilding

tobebuilt

isalab.13/28Grammar--不定式作定語所修飾名詞前有thefirst/last/next,theonly,thebest,themost等序數(shù)詞或最高級等修飾語時,用不定式作定語.不定式修飾something,anything,nothing.ThenexttraintoarriveisfromWashington.

Iwantsomethingtoread.It’syourturntospeaknow.It’stimetogotoschool.14/28Grammar--不定式作狀語Heisluckytogethereontime.Becarefulnottocatchacold.Theystartedearlysoastocatchthefirstbus.Ihurriedtogetthereonlytofindhimout.Theypartednevertoseeeachother.Hestudiedhardonlytofail.15/28Grammar--不定式的省略為了防止重復(fù)，作賓語不定式第二次出現(xiàn)時往往省略，只保留不定式符號。在want,wish,hope,like,hate,plan,try,love等詞后.Youcantryitagainifyouwantto.--Haveyoulistenedtothemusic?--No,butIplanto.16/28Theenemycandonothingbut__________.Theenemyhadnothingtochoosebut____________.Ihavenothingtodoexcept_____thearticleforhim.Ihavenothingtochooseexcept_______thearticleforhim.

surrendertosurrender當(dāng)介詞but,except前面有實義動詞do時,不定式在介詞之后能夠省去to。Grammar--不定式的省略copytocopy17/28Grammar--不定式的用法Practice18/28Theteacheraskedus_____somuchnoise.A.don’tmakeB.notmakeC.notmaking D.nottomake2.Themanwefollowedsuddenlystoppedandlookedasif___whetherhewasgoingintherightdirection.A.seeing B.havingseenC.tohaveseenD.tosee3.Havingatripabroadiscertainlygoodfortheoldcouple,butitremains____whethertheywillenjoyit.A.toseeB.tobeseenC.seeing D.seen19/284.Withalotofdifficultproblems____,thenewly-electedpresidentishavingahardtime.A.settled B.settlingC.tosettle D.beingsettled5.Sandycoulddonothingbut___tohisteacherthathewaswrong.A.admitB.admittedC.admittingD.toadmit20/286.___lateinthemorning,Bobturnedoffthealarm.A.TosleepB.SleepingC.SleepD.Havingslept7.–Youshouldhavethankedherbeforeyouleft.--Imeant____,butwhenIwasleavingIcouldn’tfindheranywhere.A.todoB.toC.doingD.doingso8.I’veworkedwithchildrenbefore,soIknowwhat____inmynewjob.A.expectedB.toexpectC.tobeexpectingD.expects21/289.Robertissaid____abroad,butIdon’tknowwhatcountryhestudiedin.A.tohavestudiedB.tostudyC.tostudyingD.tohavebeenstudying10.Thepurposeofnewtechnologiesistomakelifeeasier,___itmoredifficult.A.notmake B.nottomakeC.notmakingD.donotmake22/2811.Therearefivepairs____,butI’matalosswhichtobuy.A.tobechosen B.tochoosefromC.tochoose D.forchoosing12.LastsummerItookacourseon____.A.howtomakedresses B.howdressesbemadeC.howtobemadedresses D.howdressestobemade23/2813.Mrs.Smithwarnedherdaughter____afterdrinking.A.nevertodriveB.toneverdriveC.neverdriving D.neverdrive14.Weagreed_____herebutsofarshehasn’tturnedupyet.A.havingmetB.meetingC.tomeetD.tohavemet15.Ratherthan____onacrowdedbut,healwaysprefers____abicycle.A.ride;ride B.riding;rideC.ride;toride D.toride;riding24/2816.—Thelastone____paysthemeal.—Agreed![全國I]A.arrivedB.arrivesC.toarriveD.arriving17.ThereisnothingmoreIcantry_____youtostay,soIwishyougoodluck.[上海]A.beingpersuaded B.persuading C.tobepersuaded D.topersuade25/2818.Whenaskedwhyhewentthere,hesaidhewassentthere____f