Unit 2 Discovering Useful Structures （ppt课件）-2022新人教版（2019）《高中英语》必修第三册.pptx

1、UNIT 2 Discovering useful structure动词ing作状语和宾语补足语lead-in:review the useful structure in the last unit这个电影又感人又有趣This film is interesting and moving.V-ing as the predicative(表语)lead-in:review the useful structure in the last unit这个正在微笑的女孩在雪地里翩翩起舞The smiling girl is dancing in the snow.V-ing as the att

2、ribute(定语)V-ing 作状语和宾语补足语01 V-ing 作状语1.Being ill,he didnt go to school.2.He sat on the sofa,watching TV.3.Jack，knowing where I live,never comes to see me.逻辑主语是主句的主语逻辑主语是主句的主语一一.现在分词作状语，现在分词作状语，可表示时间、原因、条件、伴随、结果或让步等。V非谓语.,主语+谓语.主语+谓语.,V非谓语.主语，V非谓语.,谓语.1.现在现在分词作时间状语分词作时间状语过去分词作时间状语时，相当于时间状语从句。可在现在分词前加

3、上连词“when,while,until”等，使其时间意义更明确。Watching them move slowly across the green grass,Im struck by its beauty.When watching them move slowly across the green grass,Im struck by its beauty.When he walked down the street,he heard someone calling him.=When walking down the street,he heard someone calling h

4、im.=Walking down the street,he heard someone calling him.Exercises2.现在现在分词作原因状语分词作原因状语现在分词作原因状语时，可转换为由since,because或as引导的原因状语从句，这类状语多放在句子的前半部分。Being poor,he couldnt afford a TV set.Because being poor,he couldnt afford a TV set.Because he was poor,he couldnt afford a TV set.ExercisesBecause Dr Lin th

5、ought of all the people still in need of help,Dr Lin opened a private clinic.=Because thinking of all the people still in need of help,Dr Lin opened a private clinic.=Thinking of all the people still in need of help,Dr Lin opened a private clinic.3.现在现在分词作条件状语分词作条件状语现在分词作条件状语时，可转换为if,once或unless等引导的

6、条件状语从句。Working hard,youll surely succeed.If working hard,youll surely succeed.If you work hard,youll surely succeed.ExercisesIf you turn to the right,you will find a path leading to his cottage.=If turning to the right,you will find a path leading to his cottage.=Turning to the right,you will find a

7、 path leading to his cottage.4.过去分词作方式过去分词作方式/伴随状语伴随状语现在分词作方式或伴随状语时，通常不能转换为状语从句，但可用并列分句代替。Mary sat by the bed and attended to her sick motherMary sat by the bed，attending to her sick motherNora stood at the bus stop and waited for a bus.Nora stood at the bus stop,waiting for a bus.5.现在现在分词作分词作结果结果状语

8、状语1.She fell off the bike,_(break)her left leg.2.The snow fell thickly,_(make)travel difficult.3.Her mother died in 1990,_(leave)her with her brother.breakingmakingleaving1._(wait)for his girlfriend,he walked around in a mysterious way.2._(wait)for his girlfriend for several hours,he finished a fant

9、astic handicraft.二、现在分词的二、现在分词的完成形式完成形式WaitingHaving waitedhaving done表示比句子的谓语动词先发生,句子主语与having done的关系是主动关系1._(turn)off the TV,he began to go over his lessons.2._ (finish)his homework,he went out to play football with his friends.3._(buy)what she needed,Mrs.Smith went out of the market.Having turne

10、dHaving finishedHaving bought1.Not fearing the fire,the child touched and got a finger burnt.2.Not getting an answer,I decided to write him another letter.3._(know)what to do,Mike turned to his teacher for help.现在分词作状语的否定由现在分词作状语的否定由“not+现在分词现在分词”构成构成 二、现在分词的二、现在分词的否定形式否定形式Not knowing动词动词-ing形形式作状语式

11、作状语和宾补和宾补作宾补作宾补作状语作状语主动主动:_:_被动：被动：_1.1.逻辑主语与主句主语逻辑主语与主句主语 ;2.2.否定形式否定形式:.形式形式类型类型注意注意doing/having done being done/having been done 时间状语时间状语 原因状语原因状语 结果状语结果状语 条件状语条件状语让步状语让步状语 方式状语方式状语伴随状语伴随状语一致一致not/never+v-ing02 V-ing 作宾语补足语表示正在进行的动作或者经常存在的状态，常做感官动词，一些使役动词，或者with的复合结构中的宾语补足语 现在分词作宾语补足语现在分词作宾语补足语 V

12、+宾语宾语+宾补宾补1)感官和认为动词：see，hear，watch，feel，watch，think，find2)使役动词：have，get，catch，leave，set，leave,keep3)喜欢愿望类：like,want4)with+宾语+宾补They heard him _(sing)in the next room.1:1:表示宾语和宾补间表示宾语和宾补间_关系或关系或_的动作的动作正在进行正在进行主动主动一、现在分词做宾补的意义一、现在分词做宾补的意义singingHow did the little boy make the story _(interest).They th

13、ink the movie _(touch).They found the result very satisfying.2.有些有些v.-ing形式已转化成形容词，用来修饰物，表示“令人的常用的此类词有：exciting，puzzling，confusing，boring，touchinginteresting，satisfying等一、现在分词做宾补的意义一、现在分词做宾补的意义touchingintersting二、二、能用能用-ing-ing形式作宾语补足语的几类动词形式作宾语补足语的几类动词:1.1.表示感官和认为的动词，常见的有：see,hear,feel,smell,find,n

14、otice,think,等。等。eg：I felt somebody patting me on the shoulder.1.I didnt notice him_(come).2.She heard someone _(knock)at the ingknocking2.As we approached,we saw a boy being bullied by his classmates.注意注意1 1：当感官动词如：当感官动词如：see,hearsee,hear等，其后面所跟的等，其后面所跟的宾补和宾语之间宾补和宾语之间是被动关系，且正在进行时，用是被动关系，且正在进行时，用_bei

15、ng done二、二、能用能用-ing-ing形式作宾语补足语的几类动词形式作宾语补足语的几类动词:2.2.表示指使意义（使役）的动词，常见的有:have,keep,get,leave,make,等。eg：The boss kept the workers working the whole night.1.Dont leave the water _(run)while you are brushing your teeth.2.We try our best to get the car_(run)again.runningrunning二、二、能用能用-ing-ing形式作宾语补足语的几

16、类动词形式作宾语补足语的几类动词:3.3.with+with+宾语宾语+宾补宾补eg：Festivals are becoming more and more commercial,with businesses _(take)advantage of the celebrations.1.With so many people _(look)at her,the shy girl felt nervous.2.The old man went into the room with his wife _(support)him.3.With the task_(finish),he went

17、out to play basketball.4.With lots of homework_（finish）,he couldnt go out.takinglookingsupportingfinishedto finish动词动词-ing形式形式作状语和宾补作状语和宾补作宾补作宾补作状语作状语形式：主动形式：主动 _ 被动被动 _用法：用法：在在 后作宾补后作宾补在在 后作宾补后作宾补在在 后作宾补后作宾补doingbeing done感官动词感官动词使役动词使役动词with复合结构复合结构1._(hear)the news,they couldnt help jumping.2.Be

18、careful when_(cross)the street.3._(work)for three hours,he took a rest.4._(use)your head,youll have a good idea.5._(work)hard,he didnt feel a bit tired.6.The heavy rain lasted three days,_(result)in serious traffic jams.7.The girl came in,_(follow)her parents.8._(walk)in the park,she saw an old friend.9.Mary sat by the window of the classroom,_(read)a book.10._(finish)his homework,Tom listened to music.ExercisesHearingcrossingHaving workedUsingWorkingresultingfollowlingWalkingreadingHaving finished