八年級動詞不定式課件

動詞不定式肯定：to+V.原或者(to)+V.原否定：not/never+(to)+V.原Helikestoreadnovels.Isawhimcome.Wedecidednottobuythathouse.4)Itisinterestingtoflyakite.

5)Pleaselethimnotgothere.動詞不定式的結(jié)構(gòu)作主語Tohearyourvoiceissonice.Tostudyhardisveryimportant.Itissonicetohearyourvoice.Itisveryimportanttostudyhard.不定式作主語時，通常用it作形式主語，把真正的主語放在后面。注意:1、Itis+adj.for/ofsb.todosth.It+be+adj.+for/ofsb.todosth.

for:adj.多為描述不定式行為的特征（important/necessary/interesting等.）of:adj.多為

描述主語的品質(zhì)特征（kind/nice/friendly/wise/foolish等.）

作主語Itiseasy_______hertolearnEnglishwell.Itisclever________youtosolvetheproblem.offor2、Ittakessb.sometimetodosth.

Ittakesmethreehourstofinishthehomeworkeveryday.作主語我每天花去三個小時完成家庭作業(yè)。Ispendthreehoursfinishingthehomeworkeveryday.3、Itis+n.(forsb)todosth.

ItismypleasuretohelpyouwithyourEnglish.

作主語4、用在諺語中

Toseeistobelieve.Tosayiseasy,buttodoishard.作主語1、Itisnecessary______ustolearntowait.(of/for)2、Itwascareless______metobreakthecup.（of/for)3、Ittookthem1,000yuan_________thistable.(buy)4、Itismypleasure_________theboxforyou.(carry)tobuyforoftocarry練習(xí)5、輪到我們打掃教室了。Itisourturn_________________________6、Towastetimeistoshortenlife.（翻譯成中文）tocleantheclassroom.浪費(fèi)時間就是縮短生命。練習(xí)1、動詞+todosth.常用動詞有：want/wish/like/wouldlike/hope/plan/try/decide/learn/need/agree/begin/start/forget/remember/manage/seem/fail/manage/promise等1、Ihopetofinishittomorrow.2、Sheplanstogoandteachinthecountry.作賓語2、動詞＋疑問詞+todoIdon’tknow____________next.

Shecan’tdecide_________________.

作賓語2、她不能決定買哪本書。1、我不知道接下來該做什么。whattodowhichbooktobuy=Shecan’tdecidewhichbooksheshouldbuy.1、Don’tforget_________________.(關(guān)燈)2、Ihappened________whenhecalledme.（出去）3、Idon’twant________________.(依賴別人）4、Samislearning________________.(怎樣開車）5、Wepromise__________theenvironment.(保護(hù))toturnoffthelighttogoouttodependonothershowtodriveacar練習(xí)toprotect1、動詞+賓語（sb./sth.)+todosth.1、Theteacheraskedhertoanswerthequestion.2、Thedoctortoldmetohaveagoodrest.作賓補(bǔ)-對賓語進(jìn)行補(bǔ)充說明

常用動詞有：ask,tell,allow,want等動詞多為感官動詞、使動詞。一感：feel二聽：hear,listento三使：make,let,have四看：see,notice,watch,lookatJohn’smothermakeshimplaythepianoeveryday.被動：John_________playthepianoeveryday.ismadeto2、動詞+賓語+不帶to的不定式1、Lethim_______theworkatonce.(finish/tofinish)2、Doyoulikelisteningtootherpeople______?(talk/talking/totalk)3、Jimwasseen_________theroom.(enter/toenter)4、Pleasetellher_________hereontime.(come/tocome)finishtalktoentertocome練習(xí)5、I’llhelpyou_________thisproblem.(tosolve/solve)6、Iwishyouwillstaywithus.(改成簡單句）7、Herstorymadeuslaugh.(改成被動句）(to)solveIwishyoutostaywithus.Weweremadetolaughbyherstory.1、主語+be+todosth

主語多為duty/wish/hope/idea/plan/ambition/dream/work/job等

名詞

1、Myambitionistobeasinger.2、Hisworkistocleantheclassroomeveryday.作表語我的夢想是成為一名歌手。他的工作是每天清掃教室。2、諺語中1、Toknoweverythingistoknownothing.2、Toseeistobelieve.放在被修飾詞的后面Ihavealotofworktodo.Iwanttofindsomethingtodrink.作定語不定式為不及物動詞時后面應(yīng)有必要的介詞。I’mlookingforahotel_________.A.stayB.stayatC.tostayD.tostayatD位置：Hehasn’tgotahousetolive_____.Ihavenopenstowrite_______.in

with1、原因狀語:主語+be+

adj.(表情感)+todosth.

(happy/gladangry/sorry/sad/afraid等)I’msorrytohearthat.作狀語I’mgladtoseeyou.2、目的狀語

Thesoldierranintotheroomtosavethegirl._________thesoldierrunintotheroom?WhydidManyparentssendtheirchildrenabroad___________________.(深造學(xué)習(xí))tofurthertheirstudies3、結(jié)果狀語

too+adj./adv.+todosth.adj./adv.enoughtodosth.Youaretooyoungtodothisjob.Heranfastenoughtocatchthebus.動詞不定式可以充當(dāng)?shù)木渥映煞?、作主語2、作賓語3、作賓語補(bǔ)足語4、作表語5、作定語6、作狀語7、與特殊疑問詞連用8、特殊用法和固定表達(dá)AllIdidwastogivehimsomeadvice.Hisdreamistotravelallovertheworld.

Lucyneedsafriendtoplaywith.Hewasthelastguesttoarrive.It’sinterestingtoreadasciencefiction.下列不定式作何種成分？（表語）（表語）（定語）（定語）（主語）Hewasgladtoseeyou.

Myfatherofferedtobuyacomputerforme.

HeintervieweddetectiveKentogetsomeinformation.

Thedoctoraskedhimtohavemorefruitandvegetables.（狀語）（賓語）（狀語）（賓語補(bǔ)足語）下列不定式作何種成分？1、習(xí)慣于beusedto_______被用于beusedto_______Waterisusedto_____(put)outfires.Iamusedto_______(take)awalkaftersupper.2、prefer…to…比起……來更喜歡

比起游泳來，我更喜歡跑步。Iprefer________to___________.3、lookforwardto期待，盼望I’mlookingforwardto_______(visit)Beijingagain.介詞to與不定式to的區(qū)別puttakingrunningswimmingvisitingd