新人教选修7 Unit3语法讲解课件.ppt

Theuseof ing not doing not beingdone not havingdone not havingbeendone 二 V ing可作主语 宾语 表语 定语 状语和宾语补足语 但不能单独作谓语 V ing形式表示的动作与主要动词同时发生或发生在主要动词之后 用其一般式 V ing形式表示的动作在主要动词之前发生 用其完成时 在具体应用中也常以一般式代替完成式 V ing的用法 1 作主语 Swimmingisgoodforhealth raise yourhattoaaladyisgoodmanners 对一位女士脱帽致敬是礼貌的 kill bysharksintheseaisacommonthing Raising Beingkilled 注意 动名词和不定式都可以作主语 动名词作主语表示一般或抽象的多次性行为 不定式作主语往往表示具体的或一次性的动作 如 Playingwithfireisdangerous 泛指玩火 Toplaywithfirewillbedangerous 指一具体动作 2 作表语 Teachingislearning 教学相长 Myhobbyis make modelplanes Whatworriedthechildmostwas not allow tovisithismotherinthehospital making notbeingallowed 2 V ing形式和不定式都要有对称性 当主语是不定式时 表语也用不定式 反之 当主语是V ing形式时 表语也用V ing形式 Toseeistobelieve Seeingisbelieving 注意 3 It snouse good doingsthIt sawasteoftimedoingsthit作形式主语 只用V ing 不用不定式 Itis adj forsb todosthItisnousecryingoverspiltmilk 覆水难收 Itisawasteoftime talk tohim Itisimportantforme learn English talking tolearn 3 作宾语V ing形式既可作动词的宾语 也可作介词的宾语 Wewouldappreciatehearingfromyou 我们会珍惜你的来信 Thebirdescaped catch Ifeellike join thearmy Hewasafraidof abandon byus beingabandoned beingcaught joining 注意 在avoid admit appreciate consider delay enjoy escape excuse finish forgive imagine mind miss practise risk suggest giveup putoff feellike insiston insteadof lookforwardto objectto keepon等后只接V ing形式作宾语 避免错过少延期建议完成多联系喜欢想象禁不住承认否定与嫉妒逃避冒险莫原谅忍受保持不介意 注意 在want need require deserve等动词之后作宾语时 常用动名词的主动式表示被动意义 Yourcarneedsfilling 你这车要充气了 Thiscitydeservesvisiting 这座城市值得光顾一下 Theproblemrequiresstudyingcarefully 这个问题需要认真研究 Thetreeswantwatering 这些树需要浇水了 在 be worth后面只能用动名词的主动态来表示被动意义 Hissuggestionisworthconsidering Thebookisworthreading 在allow advise forbid permit等动词后直接跟动名词形式作宾语 如果后面有名词或代词作宾语 其后用动词不定式作宾语补足语 如 Wedon tallowsmokinghere Wedon tallowstudentstosmoke 1 Sorry wedon tallow inthelectureroom A tosmokeB smokeC smokingD tosmoking2 Theydon tpermit noiseher A tomakeB makeC makingD made3 Thesentencewants oncemore A toexplainB explainingC beingexplainedD tobeexplainedit4 Thesquirrelwasluckythatitjustmissed A catchingB tobecaughtC beingcaughtD tocatch Exercises 4 作定语 Thegirlstandingthereismysister Thisisapieceof surprise news Theproblem discuss nowisveryimportant Thefarmers work inthefieldsaretired surprising beingdiscussed working 5 作状语 Hearingthegoodnews hejumpedwithjoy Hesatatthetable read ChinaDaily ask toanswerthequestion shecouldn trefuse work hard youwillsucceed reading Working Beingasked 6 作宾语补足语 Isawpeoplecomingandgoinginthestreet Iheardher sing asonginherroom You llfindthetopic discuss everywherenow beingdiscussed singing 7 Ving一般时和一般时的被动形式 Hehurriedhome lookingbehindfromtimetotime 2 Thebuildingbeingrepairedisourdormitory Ving的完成时和完成时的被动形式 1 Havinglitacandle shewentout 2 Havingbeenaskedtostay Icouldn tleave 3 Havingheardthis ourteacherexpressedhersatisfaction Practice1 WhatmadeBillsoangry Hisgirlfriendpromisedtocomeat8 30 butshehasn tcomeyet A HavingkeptwaitingB BeingkeptwaitingC TobekeptwaitingD Beingkeptwaited B 2 Thebuilding inourschoolisforusteachers Thoughthere snoisemostoftheday westillfeelhappyaboutit A builtB havingbeenbuiltC tobebuiltD beingbuilt D 3 Thesquirrelwasluckythatitjustmissed A catchingB tobecaughtC beingcaughtD tocatch C 4 Whileshopping peoplesometimescan thelp intobuyingsomethingtheydon treallyneed A topersuadedB persuadingC beingpersuadedD bepersuaded C 5 manytimes theboystilld