動(dòng)詞不定式課件

TheInfinitive動(dòng)詞不定式TheInfinitive動(dòng)詞不定式1動(dòng)詞不定式的構(gòu)成：(not)to+do(動(dòng)詞原形)動(dòng)詞不定式的構(gòu)成：(not)to+do(動(dòng)詞原形)2A‘to’-infinitivecanbeusedas…主語（Subject）表語（Predicative）賓語（Object）賓補(bǔ)（Objectcomplement）定語（Attributive）狀語（Adverbial）A‘to’-infinitivecanbeused3Ⅰ不定式用作主語Togrowtreesisveryimportant.

Itisveryimportanttogrowtrees.不定式作主語時(shí),往往放在謂語之后,用it作形式主語。Ⅰ不定式用作主語Togrowtreesisver4Sayinanotherway,using‘it’.Tolearnfromyourfriendsisimportant.Toleavewithoutsayinggoodbyeisimpolite.TochatwithMissWhiteisapleasantthing.Towalktoschooltakesmetenminutes.Itisimportanttolearnfromyourfriends.Itisimpolitetoleavewithoutsayinggoodbye.ItisapleasantthingtochatwithMissWhite.Ittakesmetenminutestowalktoschool.Sayinanotherway,using‘it’5

Itis+adj.+forsb.todo…≠

sb.is\are+adj.+todo…

Itis+adj.+ofsb.todo…=sb.is\are+adj.+todo…你那樣做是有禮貌的。

Itispolite

ofyoutodothat.

=Youarepolite

todothat.

(good,kind,nice,rude,clever,right,silly,thoughtful,brave,selfish…)

(easy,hard,difficult,important,possible,necessary…)Itis+adj.+forsb.todo…6

對他來說，說英語很容易。對我們來說，努力學(xué)習(xí)是必要的。您能幫助我，真是太好了。

Itiseasy

forhimtospeakEnglish.Itisnecessary

forustostudyhard.

Itis

verykind

of

youtohelpme.Itiseasyforhimtospeak7Ⅱ不定式放在be

動(dòng)詞后面，用作表語

Mydreamis

tobeagoodteacher.Itsworkis

tocleantheroomeveryday.Ⅱ不定式放在be動(dòng)詞后面，用作表語Mydreamis8Completethefollowingsentences.1.Thedoctor’ssuggestion

is______(take)moreexercise.2.Thebestwayis______(talk)toyourparents.3.Hisplanis______________________________(今年夏天到北京旅游).4.Mypurposeis__________________________

(幫你解決這個(gè)問題).totaketotalktotraveltoBeijingthissummertohelpyousolvethisproblemCompletethefollowingsentenc9Ⅲ不定式放在及物動(dòng)詞后，用作賓語

Webegin

toreadEnglishat6:30a.m.

Sheforgot

toclosethedoor.常用動(dòng)詞不定式作賓語的動(dòng)詞有：

want,plan,hope,wish,learn,decide,wouldlike,begin,start,try,need,forget,choose,prepare,agree,promise,manage,encourage,Ⅲ不定式放在及物動(dòng)詞后，用作賓語Webeginto10Completethefollowingsentences.1.I_______________(希望收到…來信)yousoon.2.John________________(不想當(dāng))thehostofthecharityshow.3.They’re____________(試著解決)theproblembyhimself.4.Millionsofpeople_________________(已學(xué)會(huì)使用)computers.

hopetohearfromdoesn’twanttobetryingtosolvehavelearnedtouseCompletethefollowingsentenc11think/find/consider+it+adj.+todo動(dòng)詞不定式作賓語的注意事項(xiàng)（ⅰ）

不定式作賓語時(shí)，如帶有賓語補(bǔ)足語，則要把不定式放到后面，用it作形式賓語，構(gòu)成“主語+動(dòng)詞+it+賓補(bǔ)（形容詞、名詞）+不定式”結(jié)構(gòu)。如：

Ifoundit

necessary

totalktohim

again.Ifound

it

important

tolearnEnglish.think/find/consider+it+ad12動(dòng)詞不定式作賓語的注意事項(xiàng)（ⅱ）有些動(dòng)詞既可跟不定式作賓語，也可跟動(dòng)名詞作賓語，但含義不同：

forgettodosth.忘記要做某事

forgetdoingsth.忘記曾經(jīng)做過某事

stoptodosth.停下來去做某事

stopdoingsth.停止做某事

goontodosth.繼續(xù)做另一件事

goondoingsth.繼續(xù)做原來在做的事needtodosth.需要做某事needdoingsth.需要被做動(dòng)詞不定式作賓語的注意事項(xiàng)（ⅱ）有些動(dòng)詞既可跟不定式作賓語，131.別忘了離開時(shí)把燈關(guān)了。

Don’tforget

beforeleaving.2.父親必須戒煙了。

Fathermuststop.3.他看完電視后，繼續(xù)看了一會(huì)書。

AfterhewatchedTV,hewenton

forawhile.4.這輛自行車需要修理了。Thisbikeneeds__________________________.toturnoffthelightssmokingtoreadrepairing/mendingtoturnoffthelightssmokingt14

Ⅳ不定式用作賓語補(bǔ)足語Sheaskedmenot

towatchTV.

Lucytoldhimnot

tocry.

Tellhertoturnitdown.ask,tell,want,need,wish,warn,advise,encourage,invite,expect,teach,wouldlike,…

hopesb.todosth.wishⅣ不定式用作賓語補(bǔ)足語Sheaskedmenott15Completethefollowingsentences.1.MrLu_________________(要求我們交)ourhomeworkontime.2.Thedoctor________________________(建議格林先生喝)morewater.3.MrWu___________________________(叫學(xué)生別嚷嚷)inclass.4.MrsRead_____________________(希望兒子學(xué))Englishwell.asksustohandin

advisedMrGreentodrinktellsthestudentsnottoshout

wisheshersontolearnCompletethefollowingsentenc16四看三使

二聽一感覺:feel

☆不定式作賓補(bǔ)省去to

的情況(在被動(dòng)語態(tài)中則to不能省掉)help可帶to，也可不帶tohelpsb(to)dosthhearlistentoletmakehaveseewatchlookatnotice四看三使二聽一感覺:feel☆不定式作賓補(bǔ)省去t17hadbetterdosth./notdosth.Whynotdosth…?Wouldyoupleasedosth.?Wouldratherdothandosth.☆不定式作賓補(bǔ)省去to的情況

(在被動(dòng)語態(tài)中則to不能省掉)hadbetterdosth./notdosth.181.Johnwasmade

thecarforaweekasapunishmentA.towashB.washingC.washD.tobewashing2.Thepatientwaswarned

foodaftertheoperation.A.toeatnotB.eatingnotC.nottoeatD.noteating3.Internetbarsmustn’tletanybody

badthings,especiallychildren.A.watchB.towatchC.watchingD.watchesACAExercises:1.Johnwasmadetheca19感官動(dòng)詞(feel,listento,hear,see,watch,lookat,notice)后既可跟不帶to的不定式作賓補(bǔ)，也可跟v-ing作賓補(bǔ).前者表示動(dòng)作的全部過程已結(jié)束；后者表示動(dòng)作正在進(jìn)行。

Ioftenhearhersinginthenextroom.Iheardhersinginginherroomjustnow.感官動(dòng)詞(feel,listento,he20

Ⅴ不定式用作定語ⅰ不定式作定語時(shí)，應(yīng)放在被修飾詞的后面。

Wehavealotofhomework

todo.ⅱ如果不定式中的動(dòng)詞是不及物動(dòng)詞,則不定式中要有介詞.Heislookingforaroom

tolivein.Thereisnothing

toworryabout.ⅲsomething,anything,nothing…+adj.+todoIhavesomething

interesting

totellyou.Ⅴ不定式用作定語ⅱ如果不定式中的動(dòng)詞是不及物動(dòng)詞,ⅲsom21Findtheto-infinitiveineachsentence.1.MrWuisalwaysthefirsttocomeandthelasttoleave.2.Thereisnoneedtotroublehim.3.Haveyougotanythingimportanttotellme?4.I’vegotnothingtoworryabout.5.I’mthirsty.Givemesomethingtodrink.6.Springisthebestseasontoplanttrees.7.Weallhaveachancetogotocollege.Findtheto-infinitiveineach22Ⅵ不定式用作狀語1.cometodosth.2.gotodosth.3.stoptodosth.4.inorder(not)todo5.too+adj.+todosth.6.adj.\adv.+enoughtodosth.Ⅵ不定式用作狀語1.cometodosth.23

Completesomesentences:1、_________________________________(為了提高英語成績),TomgoestotheEnglishcornereveryday.2、Iwas__________________________(太累了，難于入睡。)

3、Sheranfast

_______________________(為了趕上早班車).4、Heis____________________________(富有得可以買輛小汽車).InordertoimprovehisEnglish

tootiredtofallasleep.tocatchthefirstbus

richenoughtobuyacar.Completesomesentences:Inor24

疑問詞+不定式不定式與疑問詞who,which,when,how,what,where等連用，在句中起名詞作用，可充當(dāng)主語、表語、賓語等?！钤谂cwhy連用時(shí)，只用于why或whynot開頭的簡短疑問句中，后面緊跟的動(dòng)詞不定式不帶to。

Whynothavearest?疑問詞+不定式不定式與疑問詞who,w25Completethefollowingsentences.1.Hedidn’tknow

.(說什么)。2.

isveryimportant.(如何解決這個(gè)問題)3.Myquestionis

.(什么時(shí)候開始)。4.Pleaseshowus

.(如何使用計(jì)算機(jī))5.Idon’tknow

foryou．(買什么東西).whattosayHowtosolvetheproblem

whentostarthowtousethecomputerwhattobuyCompletethefollowingsentenc26用作介詞的to

(to+名詞/動(dòng)名詞)

lookforwardtohearingfromyoubeusedtogettingupearlydevotehimselftohelpingpoorchildren

payattentiontoyourspellingpreferwatchingTVtodoinghomework…用作介詞的to

(to+名詞/動(dòng)名詞)

lookfo27Completethefollowingsentences.1.Wealllookforwardto

(hear)thegoodnews.2.He

.(寧愿呆在家里也不愿去看電影)3.YinXuemeidevotedallherlifeto

.(teach)4.Father

(習(xí)慣于看報(bào))aftersupper.5.Ifsomeonelaughsatyou,youshould.(不理睬)hearingprefersstayingathometogoingtothecinemateachingisusedtoreadingnewspaperspaynoattentiontohimCompletethefollowingsentenc28It’stimetodosth.Ittakestime\moneytodosth.…betoo+adj.+todosth.…be+adj.+enough+todosth.hadbetter+(not)dosth.Whynotdosth.?…prefer+A/doingA+to+B/doingB…prefertodosth.…wouldratherdoAthan(do)B…wouldrather(not)dosth.Will\Wouldyouplease(not)dosth.?bereadytodosth.13.beafraidtodosth.14.It's+adj.+(for/ofsb.)todosth.15.I’dlike/lovetodosth.固定句It’stimetodosth.固29ExercisesExer