高二英语“学议练探”学案M5U2GrammarandusageTeachingaims:1.LearnthefunctionsofV-ingforminsentences.2.EnablethestudentstomastertheusageofV-ingform.3.UsewhattheyhavelearnttocompletetherelatedexercisesDifficult&Importantpoints:1.WhentouseV-ingfrom2.HowtouseV-ingformPart1PreviewThinkingbeforeclassAccordingtoGrammarandusageinunitone,answerthefollowingquestions:1.Whatarethefunctionsoftheto-infinitive?2.Whatarethefunctionsoftheverb-ingform?Part2StudyinclassStep1LeadinT:Tellthemsincetheyhavelearnedthetextandthelanguagepointsinit,youmayhavefoundmanysentenceswithV-ingform.Nowlet’sreadthefollowingsentenceandtellthefunctionsoftheseV-ingformsinthesentences.Thislessonisboring.(表语Predicative)Therearesleepingstudentsinclass.(定语Attribute)Step2UsageofV-ingformasanadjectiveT:TellthemtodaytheywilllearnthefunctionsoftheV-ingforminsentencesandhowtouseV-ingformasanadjectiveoradverb.Letthemlookatthetextbooks(page28)Firstletthestudentsgothroughthesamplesentencesinthegroup1andsummarizetheusageofVerb-ingformsasanadjective.Functionasanadjective:•Averb-ingformcanappearbeforeanoun.Itmodifiesthenounasanadjectivedoes.1高二英语“学议练探”学案M5U2V-ing形式可以同形容词一样置于名词之前修饰名词。•Wecansometimesputanadverbbeforetheverb-ingform.有时V-ing形式也可用副词修饰。•Averb-ingformcanappearafteranountomodifyitasanattributiveclausedoes.Itcanbechangedintoanattributiveclause.V-ing形式亦可以同定语从句一样置于名词之后修饰名词，可以转化成定语从句。•V-ing形式可以用作表语或宾语的补语。T:Afterthis,Tcanshowthemmoresamplesentencestohelpthemtogetabetterunderstandingofthegrammarrulesandpayattentiontosomekeypoints.Attribute:arunningmanThemanrunninginthepictureisLiuXiang.Themanrunningfastestgotthefirstplace.ThemanwhoisrunninginthepictureisLiuXiang.(TellthemtopayattentiontothepositionoftheV-ingformswhentheyareusedtomodifyanoun.)小结：V-ing形式作定语可表示动作正在进行（如例1、2）或表示和所修饰词之间有逻辑主动关系（如例3）。单个V-ing词作定语修饰名词一般置于名词之前（如例1）；V-ing词组修饰名词则置于名词之后（如例2、3），此时相当于一个定语从句（如例4）。ObjectComplement:Iheardthegirlsingingintheclassroom.Inoticedalongqueueoutsidethebankwaitingforittoopen.Thebabywatchedhisdadshavinghisfacewithgreatinterest.Wehavethefireburningallday.(Getthestudentsfocusonthewordsinblueandred,especiallythefunctionsandmeaningsofthewordsinred.)2高二英语“学议练探”学案M5U2小结：V-ing形式作宾语补足语置于宾语之后，表示一个正在进行的动作（如例1、2、3），或强调一个过程或一种状态。（如例4）V-ing形式作宾语补足语时，往往同宾语存在逻辑主动关系。V-ing形式作宾语补足语的常见动词：make,let,have,keep,leave,see,watch,hear,,notice,find,feel等。(Aftertheabove,givethemenoughtimegooverwhattheyhavelearnttomakesuretheyhavenodifficultyinunderstandingthem.Explainanyquestionsraisedbythestudents)Step3UsageofV-ingformasanadverbT:Letthestudentslookatgroup2onpage28andgroup1onpage30.Askthemdiscussinpairstosummarizethefollowing:Functionasanadjective:Averb-ingcanbeusedafterverbslikestand,sitandlie.Thesetwoactionsarehappeningatthesametime.常用于stand,sit,lie等动词之后表示伴随的状态。V-ing词组可以在句中充当时间、原因、结果、条件等状语。（Finallyletthemgothroughgroup3onpage2,8andgroup2,3,4onpage30.RemindthemwhattheyshouldpayattentiontowhentheyuseV-ingforms.）小结：Averb-inghasaperfectform,e.g.,havingdone.V-ing有其完成式havingdone,...
