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1、知识点——动词-ing形式(二）动词-ing形式(二）【知识点解析】例句：Seeingisbelieving.Isuggestedaskinghisbrotherforsomemoney.It’suselesstakingthiskindofmedicine.Myjobisteaching.Chinaisadevelopingcountry.I’msorrytohavekeptyouwaiting.Iheardsomeoneknockingatthedoor.动词-ing形式(二）【知识点解析】基本知识点：动词的-ing形式，可以在句子中作主语﹑宾语和
2、表语﹑定语和宾语补足语。动词的-ing形式还可以在句子中做状语。例句：Whilewalkingslowlyonthestreet,Tommetoneofhisoldfriends.Herhusbanddiedtenyearsago,leavingherwiththreechildrentolookafter.Allnightlonghelayawake,thinkingoftheproblem.动词-ing形式(二）【知识点解析】Laughingandtalking,theywentintotheroom.Beingsick,Istayedathome
3、.Notknowingheraddress,Ican’twritetoher.注：分词与主句主语是主谓关系；副词放在分词之前。例：Butlater,peopledevelopedawayofprinting,usingrocks.Turningtotherightatthecrossing,youwillseethePostOfficerightbeforeyou.Beingpoor,theoldmanwashappy.动词-ing形式(二）【知识点解析】动词-ing的具体用法：1.with的复合结构Thepolicemenmadetheirwayin
4、totheforestwithahunterleadingtheway.2.独立主格结构Ifweatherpermits,wewillgooutforapicnictomorrow.=Weatherpermitting,wewillgooutforapicnictomorrow.Thereisnobodyintheroom.Comeinandhaveachat.=Therebeingnobodyintheroom,comeinandhaveachat.Thebabyfellfromthetree,bloodcomingdownfromhisleg.动词
5、-ing形式(二）【知识点解析】3.为了强调与谓语动词同时发生，在动词的-ing之前可用when或while；为强调在谓语动词之前或之后发生，在动词的-ing之前可用before或after.例如：Don’tlaugh,whileeating.Beforegoingabroad,hestudiedinPekingUniversity.AfterwatchingTV,hewenttobed.动词-ing形式(二）【知识点解析】4.在动词的-ing之前可用on或upon,表示：一……就……例如：On/UponarrivinginBejing,hewentt
6、oseehisuncle.5.为了强调结果，可在动词的-ing之前用thus例如：MyfriendLucyworkshard,thusgettingpraisedbyherboss.6.在动词的-ing之前可用though或although例如：Thoughworkinghard,hecouldn’tmakeenoughmoneytopayoffhisdebts.动词-ing形式(二）【知识点解析】-ing各种变化形式(doing/beingdone/havingdone/havingbeendone)1.动词－ing形式的一般式表示动作与谓语动词同时
7、发生﹑几乎同时发生或在谓语动词前发生。Workinghard,youwillsucceedintheexperiment.Walkingdownthevalley,theycameacrossabigcave.Hearingthenews,sheburstintotears.动词-ing形式(二）【知识点解析】2.动词－ing形式的完成式havingdone表示动作先于谓语动词动作发生。Havingwaitedinthequeueforhalfanhour,Tomsuddenlyrealizedthathehadlefthiswalletathome.
8、3.动词－ing形式的被动式beingdone表示这个被动动作正在进行，或是与谓语表示的动作同
