Unit 2 语法课件高中英语人教版（2019）高一必修第三册.pptx

v-ing形式在句中作状语,语法精讲,v-ing形式作状语，其逻辑主语是句子的主语，且和主语构成主动关系。doing是一般形式，having done是完成形式。,例：1.Seeing nobody at home, she decided to leave them a note. （主动意义，v-ing的动作和谓语的动作几乎同时发生。）2.Having waited for an hour, he realized he had left his wallet at home.(主动意义，v-ing的动作发生在谓语的动作之前。）,例：Hearingthenews,hegotfrightened. =Whenheheardthenews,hegotfrightened.,相当于一个时间状语从句,1.v-ing形式作时间状语,例：Notknowingheraddress,Icantwritetoher. =Because I dont know heraddress,Icantwritetoher.,相当于一个原因状语从句,2.v-ing形式作原因状语,例：Takingthepaththatleadsoutofthetown,youwillcometoalake.=If you take the path that leads out of the town, youwillcometoalake.,相当于一个条件状语从句,3.v-ing形式作条件状语,例：Livingmilesaway,heattendedthecourse.=Although he lived miles away, heattendedthecourse.,相当于一个让步状语从句,4.v-ing形式作让步状语,例：They stoodthereforhalfanhourwatchingthestarsinthesky.= Theystoodthereforhalfanhour and watched thestarsinthesky.,相当于一个并列句,5.v-ing形式作方式、伴随状语,例：The child fell off the tree, hitting his head against the ground.=The child fell off the tree, and he hit his head against the ground.,相当于一个并列句,6.v-ing形式作结果状语,1. He dived into the water, _(leave) only his face exposed.,解析：考查v-ing形式作伴随状语，he和leave是主动关系，并且leave和dive几乎同时发生。,语法填空,考点追击,leaving,v-ing形式在句中作宾语补足语,语法精讲,使用v-ing形式作宾补，常表示宾语和宾补之间是主动关系或表示v-ing形式的动作正在进行。,感官动词（短语）see, watch, observe, look at, notice, hear, listen to, feel等后常接v-ing形式作宾补，宾语和宾补之间是主动关系。,以see为例：see +宾语+ doing sth. 看见正在做某事,1.感官动词+宾语+v-ing宾补,1). have +宾语+ doing sth. 使持续做某事2). get +宾语+ doing sth.使开始做某事3). keep/leave +宾语+ doing sth.使一直做某事,例：Im sorry to keep you waiting for so long.,2.使役动词+宾语+v-ing宾补,例：With the time passing by, he almost forgot everything in the past.随着时间的流逝，他几乎忘记了过去所有的事情。,主动,3.with+宾语+v-ing宾补,1.The missing boy was last seen _ (play)near the lake.,解析：see +宾语+ doing sth. 看见正在做某事,此句考查被动语态。,语法填空。,考点追击,playing,2. With a boy _(lead) the way, we get to the destination easily.,解析：with的复合结构中，a boy和lead是主动关系，故使用v-ing形式作宾补。,leading,Bye-bye!,