GRAMMAR1 ingformandtheinfinitive Generalintroductionto ingformandtheinfinitiveusedasobject 1 Theverbsbelowmustbefollowedbytheinfinitivewhentheyarefollowedbyaverb decide determine learn want expect hope wish refuse manage care pretend offer promise choose plan agree ask beg help e g ShepretendednottoseemewhenIpassedby Weagreedtomeetherebutsofarshehasn tturnedupyet e g Inordertogainabiggershareintheinternationalmarket manystate runcompaniesarestrivingtomaketheirproductsmorecompetitive 2 Theverbsbelowmustbefollowedby ingformwhentheyarefollowedbyaverb consider suggest advise excuse delay putoff pardon admit fancy avoid miss keep keepon practice deny finish enjoy appreciate mind allow permit escape imagine forbid risk e g Thesquirrelwasluckythatitjustmissedcatching IcanhardlyimaginePetersailingacrosstheAtlanticOceaninfivedays Iwouldappreciateyourcallingbackthisafternoon Besides somecertainverbexpressionsmustalsobefollowedby ingform beusedto lookforwardto leadto devoteto stickto objectto getdownto payattentionto can tstand can thelp giveup feellike insiston putoff thankyoufor apologizefor bebusy in havedifficulty trouble in haveagood wonderful hardtime in 3 Theverbsbelowcanbefollowedbothbytheinfinitiveand ingform butthemeaningstheyexpressedarequitedifferent forgettodosth doingsth 没做 已做 remembertosth doingsth 没做 已做 regrettodosth doingsth 遗憾地做 因做过而遗憾 stoptodosth doingsth 没做 已做 trytodosth doingsth 努力去做 尝试着做 meantodosth doingsth 打算做 意味着做 goontodosth doingsth doonwithsth 继续做另一件事 继续做同一事 can thelptodosth doingsth 不能帮做 禁不住做 e g Shereachedthetopofthehillandstoppedtorestonabigrockbythesideofthepath Thelightintheofficeisstillon Oh Iforgottoturnitoff e g Iusuallygotherebytrain Whynottrygoingbyboatforachange Youwerebraveenoughtoraiseobjectionsatthemeeting Well nowIregrethavingdonethat 4 Theverbsbelowcanbefollowedbothbytheinfinitiveand ingform andthemeaningstheyexpressesarequitesimilar Generallyspeaking ingformmeanstheactionhappensusuallywhiletheinfinitivemeanstheactionhappensonaspecifictimeoraspecificplace like love begin start prefer e g Ilikeswimming butIdon tliketoswimthisafternoon I dliketogoswimmingthisafternoon can tstandcrazyabouttiredofgoodatgiveuplookforwardtosucceedingoonputoff Lookattheseverbalphrases Matchthetwopartsofthesentences sheputoffcompletingthepicture becauseshedidn tlikeit onestudentwentontalkingaftertheteacherenteredtheartclass Myfatherhasgivenuppainting aftermanyyears Hereadsalot instead 4 OurteacherMr Wuisgoodatexplainingthingsclearly 5 I mlookingforwardtovisitingtheartgallerynextweek 6 Hewastiredofwalkingroundthegallery Hewantedtositdown 7 Thatboyiscrazyaboutpopart Hethinksit swonderful 8 Ican tstandshowingmypicturestopeopleuntiltheyarefinished 9 Themansucceededinbuyingthefamouspainting Puttheverbinbracketintothe ingformortheinfinitive Weplan morepaintingsthisyear buy Sheislookingforwardto artclassesathernewschool start tobuy starting 3 Heisattempting hispaintingbytheweekend finish 4 Shepromised mearoundtheartgallery take 5 Don tputoff thatexhibition visit tofinish totake visiting GRAMMAR2 ingformassubject V ing形式作主语时 谓语动词用单数 Collectinginformationisveryimportanttobusinessmen Doingmorningexercisesisgoodforhealth V ing形式作主语时与不定式的区别 不定式作主语表示具体某一次的行为 V ing形式作主语表示抽象或泛指的动作 实际运用中一般可互换 差异不大 但下列几种情况除外 当表语是V ing形式时 主语也要用V ing形式 当表语是不定式时 主语也要用不定式 如 Seeingisbelieving Toseeistobelieve 眼见为实 在It snouse nogood awasteoftimedoingsth 等句型中一般用V ing形式 而不用不定式 如 Itisnogoodkeepingthissecret 此事不公开没有什么好处 Itisawasteofenergyarguingwithher 和她争论是浪费精力 在Itisimportant necessary easytodosth Itis adj for of sb todosth 等句型中通常只能用不定式 而不使用V ing形式 如 ItisimportantforyoutolearnEnglishwell Itisverykindofyoutohelpus Eugene sneverwillingtoalteranyofhisopinions It snouse withhim 2006上海 A toargueB arguingC arguedD havingargued Completethesentenceswith ingformsoftheseverbs drawhelpbeabletodrinkspendcopy paintwelltakesalongtime Theysaythat alotofwaterisgoodforyou apictureisagoodwaytolearntopaint Beingableto drinking Copying