動詞不定式(九年級英語語法詳解)課件

動詞不定式否定結(jié)構(gòu)不定式

todo

一般結(jié)構(gòu)nottodo

1.作主語2.作賓語3.作賓語補足語4.作定語5.作狀語6.作表語7.作獨立成分8.與疑問詞等連用Iwanttogohome.Theworkersneededtogetbetterpay.Ifounditnecessarytotalktohimagain.(3)賓語think/consider/findit+adj.+todo常用動詞不定式作賓語的動詞有：hope,refuse,learn,setoutchoose,decide,agree,manage,pretend,plan.

Theteachertoldmetocleantheblackboard.Iexpectyoutogivemesomehelp.(4).賓補五看

watch

see

lookat

observe

notice三使

let

make

have

二聽

listento

hear一感覺:

feelwarn,tell,allow,help,ask,force等Imadehimdohiswork.Hewasmadetodohiswork(byme).不定式用在介詞but,except,besides后時,如果這些介詞前有行為動詞do的各種形式,那么介詞后的不定式不帶to,相反則帶to.(1).Shecoulddonothingbutcry.(2).Ihavenochoicebuttogo.(3).Whatdoyouliketodo

besidessleep.Ihavesomethingtosay.Hehasalotofhomeworktodo.Heislookingforaroomtolivein.Thereisnothingtoworryabout.(5).定語(如果不定式中的動詞是不及物動詞,則不定式中要有介詞.)2.不定式所修飾的名詞或代詞是不定式動作的地點工具等，即使是及物動詞，不定式后面仍須有相應的介詞。

3.不定式所修飾的名詞如果是time,place或way，不定式后面的介詞習慣上要省去。Hehadnomoneyandnoplacetolive.他沒錢沒地方住。請給我一支寫字的筆.Pleasegivemeapentowritewith.Icameheretoseeyou.Hegotupearlytocatchthetrain.(6)狀語inorderto,soasto,enoughto,onlyto,too….to.,不定式與疑問詞who,which,when,how,what等連用，在句中起名詞作用，可充當主語、表語、賓語等。Hedidn’tknowwhattosay.他不知道說什么。(賓語)Howtosolvetheproblemisveryimportant.如何解決這個問題很重要。(主語)Myquestioniswhentostart.我的問題是什么時候開始。(表語)注意：在與why連用時，只用于why或whynot開頭的簡短疑問句中，后面緊跟的動詞不定式不帶to。

Whynothavearest?固定句型:hadbetter/hadbest+(not)dosth.最好（不）做某事Why(not)dosth.?…prefertodo/preferdoing…prefer+n./doingA+to+n./doingB…prefer+todoAratherthan(to)doB…wouldrather(not)dosth.…wouldratherdoAthan(do)B…wouldrather+句子（過去式）（虛擬語氣）要做……ExerciseMyteacherwasmade_____histeachingbecauseofpoorhealth.givingupB.togiveupC.giveupD.givenup2.TheArcticisconsidered____thenorthernpartoftheAtlantic.havingbeenB.tohavebeenC.tobeD.being3.—Thelightintheofficeisstillon.---Oh,Iforgot______.A.turningitoffB.turnitoffC.toturnitoffD.havingturneditoffBCC4.---Whatdoyouthinkoftheschool?----Itisaverygood_____.schooltostudyinB.schoolforchildrentostudyC.studyingschoolD.s