教學輔助課件八年級下SectionAPeriodThreeUnit2I’llhelptocleanupthecityparks.Infinitivesasobject,adverbialandobjectcomplementReadthesentences.Observetheunderlinedpartsandgettheirstructures.1.wouldliketodo…2.asksb.todo…3.letsb.do…4.volunteer

todo5.helpsb.(to)do…6.learntodo…7.decidetodo…8.make…todo動詞不定式結構：1)I’dlike______(help)homelesspeople.2)Shedecided_________(tryout)foravolunteerafter-schoolreadingprogram.3)Youcouldaskhospitals____(let)you____thekidsandcheerthemup.4)Mariobelievesitcanhelphim_____(get)hisfuturedreamjob.5)Shevolunteersthereonceaweek______(help)kidslearn_______(read).6)I’mmakingsomesigns________(putup)aroundtheschool.Fillintheblanks.tohelptotryouttolet(to)gettohelptoreadtoputupgoReady?visit1.Iwant_________(become)apolicemanoneday.2.Hewantsthestudents_____(eat)well.3.Theteachermadehisstudents_____

(come)intothemeetingroomontime.4.Theboywasfree_____(go)whereheliked.5.Nobodytellshimwhat_____(do)next.根據提示完成下列句子。tobecometoeatcometogotodoPractice“to+動詞原形”被稱為動詞不定式，常寫作todo(有時to可以省略)，否定形式為nottodo。該形式在句中除了不能作謂語外，可作其他成分，沒有人稱和數的變化。動詞不定式Focuson基本用法動詞不定式可在句中作賓語、賓語補足語和狀語等。一、作賓語：主語+謂語動詞+todo1)Youmustlearntolookafteryourself.你必須學著照顧自己。2)Theyvolunteer

tocleanupthehousefortheoldlady.

他們自愿給老人打掃房子。動詞不定式的用法不定式常出現在一些及物動詞后，構成動詞短語，如：wanttodo,plantodo,agreetodo,learn

todo等二、作賓語補足語：謂語動詞+名詞/代詞+todo1)Theteacherasksustocometoschoolearly.老師要求我們早點到校。2)ItellhimtoarriveonSunday.我讓他周日到達。動詞不定式用來補充說明賓語的情況。有些動詞要求動詞不定式必須帶to，有些要求不帶to。Ⅰ.有些動詞如ask,teach,tell,advise,invite等后必須接帶to的動詞不定式作賓語補足語。1)Myparentssometimesmakemedosomehousework.我父母有時讓我做些家務活。2)Isaw

him

workinthegardenyesterday.昨天我看見他在花園里干活了。Ⅲ.help后面的動詞不定式可加to，也可不加to。Ⅱ.感官動詞(hear,see,watch等)和使役動

詞(make,let等)后接不帶to的動詞不定式作賓語補足語。Couldyouhelpme(to)dosomecleaning?你能幫我打掃衛生嗎？1)Thegirlcouldvisitthesickkidsinthehospitaltocheerthemup.那個女孩可以到醫院去哄生病的小孩子開心。2)Toexplainmoreclearly,I’llshowyousomepictures.為了解釋得更清楚，我會給你們看一些圖片。3)Shestillworksthereonceaweektohelpkidslearntoread.她仍堅持一周一次去那里教孩子們讀書。三、作目的狀語：動詞不定式可表示某一動作或狀態的目的，位于句首或句尾。作賓語：主語+謂語V.+todo作賓補：主語+謂語V.+sb.+todo作狀語下列不定式結構分別在句中有何用法？Practice4aFillintheblankswiththephrasalverbsinthebox.putuphandoutcallupcheerupcomeupwithgiveoutputoff1.Iwantto______myplantoworkinananimalhospitaluntilnextsummer.I’mtoobusywithmystudiesthisyear.2.Shehopesto______atleastfiveprimaryschoolstoaskiftheyneedvolunteersfortheirafter-schoolprograms.putoffcallupputuphandoutcallupcheerupcomeupwithgiveoutputoff3.Ourclassistryingto__________someideasto________sickchildrenbecausetheyareoftensad.4.Wedecidedto______signsaroundtheschooland_______noticestotellstudentsaboutthebooksale.Wewill_______themoneyfromthesaletohomelesspeople.comeupwithcheerupputuphandoutgiveout4bFillintheblankswiththecorrectformsoftheverbsinthebox.helpmovedomakevisitspendMostpeopletodayareonlyworriedaboutgettinggoodjobs________lotsofmoney.Intheirfreetime,theythinkaboutwhat_______forfun.However,fewpeoplethinkaboutwhattheycando________others.Therearemanypeoplewhoarelessluckythanus.Volunteeringourtimetohelpthesepeopleisagoodway________ourfreetime.Forexample,wecanmakeplans______sickchildreninthehospitalorraisemoneyforhomelesspeople.Somepeopleevenstopdoingtheirjobsforafewmonthstoayear________toanotherplace,likeoneofthecountriesinAfrica,andhelppeoplethere.tomaketodotohelptospendtovisittomove4cCompletethesentenceswithyourownideas.Useinfinitives.I’dliketovolunteer____________________________________________________2.At12:00midnight,Icalledmyfriend______________________________3.I’mverybusybutIcouldhelp_________________________________4.Summervacationiscoming,andIwant____________________________5.Iwanttotravelalone.Myparentstoldme(not)_________________________________________________helptogiveoutfoodtothehomelesspeople.toaskhimanimportantquestion.topaintthehouseforafewhourstomorrow.tohavealongjourneyabroad.nottodothatbecauseIamtooyoungatthefoodbankandanditisnotsafe.注:另附word文檔。點擊此處鏈接Myfriendinvitedme_____theartclub,andIaccepteditwithpleasure.A.joinB.tojoinC.joinedD.joining解析：本題考查非謂語動詞。invitesb.todosth.邀請某人做某事。故選B項。2.—Whatareyougoingtodowhenyougrowup?—Asinger,butmyparentswishme_____ateacher.A.amB.tobeC.willbeD.be解析：本題考查非謂語動詞。wishsb.todosth.希望某人做某事，其中動詞不定式作賓補，故選B項。單選。3.Fatheroftentellsme_____toomuchtimeoncomputergames.A.don'tspendB.notspendC.nottospendD.notspending解析：本題考查不定式的用法。固定用法：tellsb.(not)todosth.tell后接動詞不定式作賓語補足語。4.____thecustomers,therestaurantowneroffersa10%discountforallthedishes.A.PleasingB.TopleaseC.PleaseD.Pleased解析：本題考查非謂語動詞。topleasethecustomers為動詞不定式作目的狀語。根據漢語提示補全句子。1.你愿意幫忙打掃城市公園嗎？

Wouldyoulike______________thecityparks?2.莉莉，你能幫我洗碗嗎？

Couldyoupleasehelpme________thedishes,Lily?3.簡沒有想出解決這道數學題的好方法。

Janedidn’t____________agoodway____________thismathproblem.tohelpclea