Unit3FascinatingparksDiscoveringUsefulStructures课件高中英语人教版选择性

Unit3Fascinatingparks新人教版选择性必修Book1DiscoveringUsefulStructuresP29Learningobjectivesrecognizeandsummarizethefountionof-ingformasthesubject;summarizethedifferentusesof-ingform;finishthecorrespondingexercisesabout-ingform;use-ingformasthesubjecttodescribeaplaceinwriting.Inthisclass,youwillLearningaforeignlanguageisveryusefultoeveryone.Usingtherighthandtoshakehandsisaconventioninmanycountries.Travelingaroundtheworldismydream.Seeingisbelieving.Usingtherighthandtoshakehandsisaconventioninmanycountries.Travelingaroundtheworldismydream.Seeingisbelieving.V-ingformusedasthe

subjectLearningaforeignlanguageisveryusefulto

everyone.①②③④Findmoresentenceswiththe–ingformasthesubjectfromthereadingpassage.Beinginsuchabeautifulandwildplacemakesmefeelblessedtobealive.Eventhoughthesunisbrightlyshining,tellingwhetheritismorningornightisimpossible.Gettinghereisquitedifficult,soapartfromtheSemiveryfewpeoplehaveeverseenSarek.Forhundredsofyears,lookingafterreindeer

wasawayoflifefortheSami.①②③④Lookformoresentenceswiththe-ingformfromthereadingpassageandstatetheirfunctions.-ingformassubject一、动词-ing作主语的三种形式：1.直接放在句首，表示抽象的、经常的以及习惯性的动作或状态，谓语动词用单数。例句：1)Walkingisagoodformofexerciseforboththeyoungandtheold.

散步对年轻人和老年人都是一种很好的锻炼方式。3)GoingtoHangzhoubytraintakesabout16hours.

在电视上看新闻已经成了我的一种日常习惯。乘火车去杭州要16个小时。4)Askingawoman’sageisimpoliteinourcountry.在我们国家问一个女人的年龄是不礼貌的。2.it在句首作形式主语，动词-ing形式后置作真正的主语，用形容词或名词作表语。nouse,nogood,fun,hardwork,ahard/difficultjob,awasteoftime常见的名词或名词短语

dangerous,worthwhile,useless常见的形容词1)It’snouse

makinganexcuseforthis.

例句：为这件事找借口是没有用的。2)It’sawasteoftime

talkingaboutsuchauselessthing.谈论这样无用的事情简直是浪费时间。3)It’sdangerous

swimmingintheseaonwindydays.有风的天气在海里游泳是危险的。3.在therebe结构中作主语：这种结构的意思相当于“Itisimpossibletodo…”。Therebeno动词ing1)Thereisnohidingofevilbutnottodoit.例句：若要人不知,除非己莫为。2)Thereisnojokingaboutsuchamatter.这种事开不得玩笑。二.动词-ing形式的否定形式动词-ing形式的否定形式通常是在其前加not,带有逻辑主语时，not应放在逻辑主语和-ing

形式之间。2)Nothavingdonehishomeworkmakestheteacherangry.

未完成他的作业让老师很生气。三.动词-ing形式的复合结构动词-ing形式的复合结构由物主代词或人称代词宾格，名词所有格或普通格加动词-ing,即“sb./sb.'s+doing”构成。动词-ing形式的复合结构实际上是给动词-ing形式加了一个逻辑主语。动词-ing形式的复合结构有四种形式：形容词性物主代词+动词-ing名词所有格+动词-ing代词宾格+动词-ing名词+动词-ing2)Mary'sbeingill

madehermotherupset.

玛丽病了，这使她妈妈很心烦。3)WangMin'spassingtheexammadeherveryhappy．王敏通过这次考试使她很高兴。1.动词-ing形式通常表示抽象动作，往往是普通的、一般的行为；且表示已知的事情或经验。2.动词不定式作主语则表示某次具体动作或行为；且表示未完成的事情或未达成的目的。例句：1)Asachild,shefeltthat

visiting

sickpeoplewasadutyandapleasure．四.动词-ing形式与不定式做主语的比较还是个孩子的时侯,她就觉得探视病人是一种责任,也是一种愉悦。2)Hesaid,“Togoonlikethisisuseless.”他说:“继续这样下去是无用的。”3)Doingnothingisdoingevil．什么也不做就是作恶。4)It’sanhonorformetobeinvitedtotheparty.我很荣幸被邀请参加这个晚会。五.常用-ing形式作主语的句型It+be+awasteoftimedoing

做……是浪费时间的Itis/wasnogood/usedoing

做……是没用处的Itis/washardly/scarcelyworthdoing

做……不值得Itis/wasworth/worthwhiledoing

做……是值得的Thereisnodoing...

无法……;不允许……例句：1.说服他加入我们就是在浪费时间。2.在这儿等是没用的,我们走吧。3.在教育上花钱是值得的。4.和不诚实的人交朋友是没有好处的。It'sawasteoftime

persuadinghimtojoinus.It’snousewaitinghere.Let’sgo.Itisworthwhile

spendingmoneyoneducation.Thereisnogoodmakingfriendswiththedishonestmen.1.Rewriteeachofthefollowingsentencesusingthe-ingformasthesubject.EXAMPLEItischallengingyetreallyfascinatingtohike

throughthemountainsinthepathlessSarek.HikingthroughthemountainsinthepathlessSarekischallengingyetreallyfascinating.1)Itisbothchallengingandrewardingtostudyabroad.

2)ItwouldhardlybepossibletogoonahikingtourinSarekinwinterduetotheextremecold.

Studyingabroadisbothchallengingandrewarding.GoingonahikingtourinSarekinwinterwouldhardlybepossibleduetotheextremecold.Practice3)Honestly,itcanbebothexcitingandterrifyingtoexploreavastunknownland.4)Itisgoodtoadoptapositiveattitude,evenwhenthingsaredifficult.5)Itisstronglyadvisedtohirelocalguides,becausetheycanofferaccurateknowledgeofSarekcultureandhistory.Honestly,exploringavastunknownlandcanbebothexcitingandterrifying.Adoptingapositiveattitudeisgood,evenwhenthingsaredifficult.Hiringlocalguidesisstronglyadvised,becausetheycanofferaccurateknowledgeofSarekcultureandhistory.

Howdoesthesentencefocuschange?Theuseof-ingformsassubjectsputstheactionfirst,makingthesentencesseemmoredynamic.2.Fillineachblankusingthe-ingformofaverbfromtheboxandstateitsfunction.Onewordwillbeusedtwice.XixiNationalWetlandPark,________________citylife,nature,andwetlandsmakestheparkapopulardestinationbothfortouristsandlocalresidents.AtXixi,___________aboattour,___________alongpaths,and___________localcustomsandtraditionsofthevillagesinthisparkareatthetopof

thelistofpeople'sfavouriteactivities.Withtrees,bushes,andcolourfulflowers____________alongthecoveringCombiningtakingwalkingexperiencingattributesubjectsubjectsubjectsubjectgrowingattributeriversides,theparkshowsdifferentsidesofbeautyindifferentseasons.Inordertobetterdevelopaswellaspreservethis

place,

_________humanimpactonXixiWetlandwasconsideredbytheparkdesigners.Allthenewbuildingsweredesignedinatraditionalwaytofitintothenaturalenvironment.Thisgreen,wateryworldishometomanybirdsandfishes.

Withtrees__________intheshallows,thewetlandisanaturalsystemforprovidingcleanwaterandproducingoxygen,whichmakesitthe“greenlungsofHangzhou".growinglimitingsubjectattribute3.Finishthefollowingsentences.1)和他争论真是浪费时间。___________________arguingwithhim.2)他早上起晚了，这导致他上课迟到了。___________________inthemorningmadehimlateforclass.3)我哥哥弹吉他使我无法专心学习。