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现在分词作定语或状语语法练习题

现在分词作定语或状语语法练习题
现在分词作定语或状语语法练习题

II 现在分词作定语或状语

A )1. The ______ boy was last seen ______ near the bank of the lake.

A. missing; playing

B. missing; play

C. missed; played

D. missed; to play

A 2. Mr Smith, ______ of the ______ speech, started to read a novel.

A. t ired; boring

B. tiring; bored

C. tired; bored

D. tiring; boring

B 3. Don’t leave the water _______ while you brush your teeth.

A. run

B. running

C. being run

D. to run

D 4. John’s bad habit is ______ without thorough understanding.

A. read

B. being read

C. to be read

D. reading

A 5. Tell Mary that there’s someone ______ for her at the door.

A. waiting

B. waited

C. waits

D. to wait

A 6. The ______ waiter came up to us and said, “You are welcome.”

A. smiling

B. smiled

C. smile

D. to smile

D 7. Do you know the boy______ under the big tree?

A. lay

B. lain

C. laying

D. lying

C 8. I can hardly imagine Peter _______ across the Atlantic Ocean in five days.

A. sail

B. to sail

C. sailing

D. to have sailed

D 9. There are lots of places of interest _______ in our city.

A. needs repairing

B. needing repaired

C. needed repairing

D. needing to be repaired A 10.The drunken husband knocked against the table and sent the bowls____in all directions before he was sent _______ by his wife.

A. flying; to sleep

B. flying; sleeping

C. to fly; to sleeping

D. to fly; to sleep

C 11. When we got back from the cinema, we found the lamp_____ but the door _______.

A. being on; shut

B. burning; shutting

C. burning; shut

D. on; shutting

C 12.When we got back from the cinema, we found the lamp_____ but the door _______.

A. being on; shut

B. burning; shutting

C. burning; shut

D. on; shutting

A 13. The woman found it no good ______ her daughter too much money.

A. giving

B. being given

C. given

D. gave

C 14. As the stone was too heavy to move, I left it ______ on the ground.

A. laying

B. lay

C. lying

D. lain

B 15. As the light turned green, I stood for a moment, not ______, and asked myself what I was going to do. (湖南

A. moved

B. moving

C. to move

D. being moved

B 16. The glass doors have taken the place of the wooden ones at the entrance, ______ in the natural light during the day. (天津)

A. to let

B. letting

C. let

D. having let

B 17. _____that she didn’t do a good job, I don’t think I am abler than her. (陕西)

A. To have said

B. Having said

C. To say

D. Saying

A 18 Whenever he was asked why he was late for class, he would answer carelessly, always ______ the same thing. (江苏)

A. saying

B. said

C. to say

D. having said

C 19. Don’t sit there ______ nothing. Come and help me with this table. (湖北)

A. do

B. to do

C. doing

D. and doing

C 20. When ______ different cultures, we often pay attention only to the differences without noticing the many similarities.(浙江)

A. compared

B. being compared

C. comparing

D. having compared C21. While watching television, ______. (全国卷III)

A. the doorbell rang

B. the doorbell rings

C. we heard the doorbell ring D we heard the doorbell rings

C 22. ______ in the queue for half an hour, Tom suddenly realized that he had left his wallet at home.(北京)

A. To wait

B. Have waited

C. Having waited

D. To have waited

现在分词作状语及习题

现在分词作状语 一、现在分词具有形容词和副词特征,用作副词时,充当时间、条件、原因、伴随、结果、方式以及让步状语。 1. 作时间状语,可改为时间状语从句,分词前可加while或when等连词。 When comparing different cultures, we often pay attention only to the differences without noticing the many similarities. =When we compare different cultures… (06全国) 2. 作条件状语,可改为条件状语从句,分词前可加once, until, if等连词。 Turning to the right, you will find the path leading to the park. =If you turn to the left … 3. 作原因状语,可改为原因状语从句。 Having been ill in bed for nearly a month, he had a hard time passing the exam. =Because/ As he had been ill in bed… (04福建) 4. 作结果状语,可改为which引导非限制性定语从句,分词前可加thus,加强语气。 Oil prices have risen by 32 percent since the start of the year, reaching a record $57.65 a barrel on April. =…, which reach a record $57.65 a barrel on April. (05山东) 5. 作让步状语,可改为让步状语从句,分词前可加although, though, even if, even though等连接词。 Though lacking money, his parents managed to send him to university. = Though his parents lack money, they … (02上海) 6. 作伴随状语,相当于and连接并列谓语。 About one-six undergraduates in Beijing this year are willing to spend as much as 2,6oo Yuan on driving courses, seeing it as an investment in their future. = …, and see it as an investment in their future. “You can’t catch me!” Janet shouted, running away =…and ran away (05全国) 7. 作方式状语。Jack came here, running. 二、现在分词的时态以及否定形式 分词的动作与谓语同时发生用一般式,可转化为on+动名词或when/while引导的时间状语从句,从句根据语境用一般过去时或过去进行时;分词动作先于谓语动词用完成式,可转化为after+动名词的一般式或after /when引导的时间状语从句,从句中用完成式;现在分词的否定式:not+分词构成。 Hearing his father’s voice, the boy turned off the TV set at once. = On hearing his father’s voice…或When the boy heard father’s voice, he… Having waited in the queue for half an hour, Tom suddenly realized that he had left his wallet at home. (04北京) =After waiting in the queue…或When Tom had waited in the queue for half an hour, he… 三、现在分词的逻辑主语及独立结构 分词作状语,逻辑主语与句子主语一致;如不一致时,分词带上自己的逻辑主语,形成独立主格结构。 误:While watching television, the doorbell rang. (05全国) 正:While watching television, we heard the doorbell ring. (05全国) 误:Being sunny, we went on a spring outing. 正:It being sunny, we went on a spring outing. 四、掌握以下区别 1. 首动词的用法区别

现在分词讲解及训练

现在分词 Form: ?doing ?having done(先后关系) 现在分词表示主动含义或动作正在进行。 Exercise: 划出句中的现在分词,并指出它在句中做何成分。 1. The three contestants were sitting at their desks on the stage, waiting. 2. Hearing the news, he jumped with joy. 3. Having finished his homework, he went out. 4. People living in the cities used to regard farming as boring and backward. 5. The changes in Sunqiao is very amazing. 现在分词做定语: Exercise: Combine each pair of sentences 1. The men are required to come to the headmaster’s office. They had some overseas working experience. 2. The people take part in a variety of exercise They can keep healthy. 3. The research at Sunqiao produces seeds. The seeds help farmers grow better crops. 4. People used to regard farming as boring and backward. These people live in cities. 5.Do you know the boy? He is standing under the tree. 6. The spiders store the mice for later. The mice serve as a source of food. Exercise: compare The swimming pool is clean and big. The swimming boy is his brother. The big writing desk is very expensive. The writing student is Tom’s classmate. 现在分词作状语:时间,条件,伴随方式,原因,结果 Exercise: rewrite the sentences 1. Kitty heard the news. She jumped with joy. 2. Tom put on his swim-suit. He dived into the swimming pool. 3. While she was cooking, she burned her right hand. 4. After he had finished his homework, he went out to play football. 以上改写后的三个句子中的现在分词短语做______状语。 现在分词作状语:相当于状语从句,但从句和主句的____语必须一致. 时间状语: 1. Working in the factory, he learned a lot from the workers.(分词一般式) 2. Having read the letter, she got very excited(完成式) 3. ________hearing the news, they all jumped with joy. 4. = as soon as _________________________________________. 5. Be careful when crossing the street. 条件状语: 1.If you walk hard, you will succeed. 2. = _______________________________ 伴随方式状语 1. She came _______(run) towards me. 2. The children ran out of the room, __________(laugh) and _______(talk) merrily. 3. ____________(travel) by jeep, we visited a number of cities. 4. ____________(follow) the guide, they started to climb. 5. _____________(follow) by the students, the teacher entered the office. 原因状语 1. Because I was sick, I stayed at home.

现在分词作定语或状语语法练习题

II 现在分词作定语或状语 1. The ______ boy was last seen ______ near the bank of the lake. A.missing; playing B. missing; play C. missed; played D. missed; to play 2. Mr Smith, ______ of the ______ speech, started to read a novel. A.tired; boring B. tiring; bored C. tired; bored D. tiring; boring 3. Don’t leave the water _______ while you brush your teeth. A. run B. running C. being run D. to run 4. John’s bad habit is ______ without thorough understanding. A. read B. being read C. to be read D. reading 5. Tell Mary that there’s someone ______ for her at the door. A. waiting B. waited C. waits D. to wait 6. The ______ waiter came up to us and said, “You are welcome.” A. smiling B. smiled C. smile D. to smile 7. Do you know the boy______ under the big tree? A. lay B. lain C. laying D. lying 8. I can hardly imagine Peter _______ across the Atlantic Ocean in five days. A. sail B. to sail C. sailing D. to have sailed 9. There are lots of places of interest _______ in our city. A. needs repairing B. needing repaired C. needed repairing D. needing to be repaired 10. The drunken husband knocked against the table and sent the bowls _______ in all directions before he was sent _______ by his wife. A. flying; to sleep B. flying; sleeping C. to fly; to sleeping D. to fly; to sleep 11. When we got back from the cinema, we found the lamp _______ but the door _______. A. being on; shut B. burning; shutting C. burning; shut D. on; shutting 12. When we got back from the cinema, we found the lamp _______ but the door _______. A. being on; shut B. burning; shutting C. burning; shut D. on; shutting 13. The woman found it no good ______ her daughter too much money. A. giving B. being given C. given D. gave 14. As the stone was too heavy to move, I left it ______ on the ground. A. laying B. lay C. lying D. lain 15. As the light turned green, I stood for a moment, not ______, and asked myself what I was going to do. (湖南07) A. moved B. moving C. to move D. being moved 16. The glass doors have taken the place of the wooden ones at the entrance, ______ in the natural light during the day. (天津2007) A. to let B. letting C. let D. having let 17. ______that she didn’t do a good job, I don’t think I am abler than her. (陕西2007) A. To have said B. Having said C. To say D. Saying 18 Whenever he was asked why he was late for class, he would answer carelessly, always ______ the same thing. (江苏2006) A. saying B. said C. to say D. having said 19. Don’t sit there ______ nothing. Come and help me with this table. (湖北2006) A. do B. to do C. doing D. and doing 20. When ______ different cultures, we often pay attention only to the differences without noticing the many similarities.(浙江2006) A. compared B. being compared C. comparing D. having compared 21. While watching television, ______. (2005全国卷III) A. the doorbell rang B. the doorbell rings C. we heard the doorbell ring D. we heard the doorbell rings 22. ______ in the queue for half an hour, Tom suddenly realized that he had left his wallet at home.(北京2004) A. To wait B. Have waited C. Having waited D. To have waited

现在分词作状语详解

教学目标:讲解现在分词作状语及区分不定式、现在分词作状语的异同 重点难点: 1.现在分词和不定式作状语时,其逻辑主语一般应与句子的主语保持一致。 2.分词作状语时,要看它同句子主语之间的关系,以确定是现在分词还是过去分词。 3.注意非谓语动词与句子谓语动词的时间关系,以确定分词的时态形式 4、弄清非谓语动词与其逻辑主语的关系,以确定非谓语动词的语态形式. 5. 连词+分词形式(分词作状语的省略问题) 6.不定式作结果状语和现在分词作结果状语的区别。 7. 现在分词的独立主格结构和评价性状语 Step 1 lead in 朗读下面一首唐诗,找出其中的现在分词形式 Thinking in the Silent Night 静夜思 Before my bed there is bright moonlight 床前明月光 So that it seems that frost on the ground. 疑是地上霜 Lifting my head, I watch the bright moonlight. 举头望明月 Lowering my head, I dream tha t I’m home. 低头思故乡 Step2 现在分词作状语的意义 动词的现在分词作状语,修饰动词,相当于状语从句,在句中表示时间、原因、结果、条件、让步、行为方式或伴随情况及独立成分等,作时间、原因、条件、让步状语时多位于句首;作结果、伴随情况状语时常位于句末。 一. -ing分词短语作时间状语,代替一个时间状语从句(引导词有when ,while ) 温馨提示: 1.现在分词所表示的动作与主句的动作一般是同时发生,有时可由连词when, while引出。 2.现在分词所表示的动作一发生,主句的动作就立即发生时。如: When she saw those pictures,she remembered her childhood. =Seeing those pictures, she remembered her childhood. 看到那些画,她想起了自己的童年。 As soon as he heard the good news, he jumped with joy. =(0n)Hearing the good news, he jumped with joy. 他一听到这个好消息,就高兴地跳起来。 二.-ing分词短语作原因状语,相当于一个原因状语从句。(引导词有because ,as ,since) 如:As he was ill, he didn't go to school yesterday =Being ill, he didn't go to school yesterday. 由于生病,他昨天没有上学。 三.-ing分词也可作条件状语和让步状语,相当于一个条件状语从句。(引导词有if,unless,once) If you work hard, you will succeed. =Working hard, you will succeed. 如果你勤奋一点,你就会成功。 If you turn to the left, you will find the path leading to the school.

过去分词作定语和状语语法教案

teaching design (课堂设计) 陈建军 教材分析( the analysis of teaching materia)l This teaching period mainly deals with the grammar: The Past Participle as the Adverbial and Attribute. And let students to do some exercises to consolidate it. 2. 学情分析( the analysis of the studen)ts Students often feel this item abstract and difficult, so it is necessaryto make the lesson interesting and connect with it with their daily life in order to let it easy to accept and understand. 3. 教学目标(Teaching aims) 知识目标(Knowledge aims) Enable students to learn how to use the past participle as the adverbial and attribute correctly. 能力目标(Ability aims) Enable students to use the past participle as the adverbial and attribute correctly and properly according to the context. 情感目标( Emotional aims) a. Get students to become interested in the grammar learning. b. Develop students'sense of group cooperation. 4. 教学重点和难点( teaching important points and difficult point)s a. Get students to learn and consolidate how to use the past participle as the adverbial and attribute correctly. 5. 教学过程(Teaching procedures) Step1.Greetings Step2 .Check&Revision Step3.Presentation 1. 过去分词作状语时,其前面可以带有相应的连词,如when, though, although, as if, if 等, 表时间,让步,条件等。 If invited, I will attend the wedding of my friend. 2. 过去分词作状语时,分词的逻辑主语与句子的主语一致。 If caught, the thief will be punished by the police. 3. 过去分词短语与句子主语之间存在逻辑上的动宾关系,即被动关系。 Asked why he was late, he cried. 4. 有些过去分词已形容词化,作状语时表示人得状态。常见的有satisfied, interested, moved 等。 Disappointed at the examination results, the girl stood there without saying a word. Step 4 summing 巧学助记:分词作状语,主语是问题 逗号前后两动作,共用一主语主语找出后,再来判关系主动用ing, 被动用ed Having done 表先后,千万要牢记

分词作定语与状语翻译练习

1.我有一块中国制造的手表。(分别用分词与定语从句造句) I have a watch made in China. I have a watch which was made in China. 2.我正在读一本莫言著的书。(分别用分词与定语从句造句) I was reading a book written by Moyan. I was reading a book which was written by Moyan. 3.中国已经制造出使用磁悬浮技术的高速列车。(分别用分词与定语从句造句)China has made a high-speed train using magnetic levitation. China has made a high-speed train which uses magnetic levitation. 4.这是一种生活在海洋里的昆虫。(分别用分词与定语从句造句) This is an insect living in the ocean. This is an insect which lives in the ocean. 5.从山上看,我们能看到青岛漂亮的风景。(现在分词作状语)

Seeing from the mountain, we can see the beautiful scenery in Qingdao. 6.孩子们高兴地笑着说着,跑出教室。(现在分词作状语) The children ran out of the room, laughing and talking merrily. 7.从浮山上看,青岛很漂亮。(过在分词作状语) Seen from the Mount Fu, Qingdao is very beautiful. 8.由于写的匆忙,这篇文章并不是很好。(过在分词作状语) Written in a hurry, the article was not so good.

过去分词作定语和状语

概念引入 在前两个单元我们已经学过过去分词作定语和表语,及过去分词作宾语补足语,在本单元中我们先复习一下过去分词作定语,然后学习过去分词作状语。 看下面句子: 1. Worried about the journey, I was unsettled for the first few days. 2. Well-known for their expertise, his parents’ company, called “Future Tours”, transported me safely into the future in a time capsule. 3. Hit by a lack of fresh air, my head ached. 4. Exhausted, I slid into bed and fell fast asleep. 5. Described as an enormous round plate, it spins slowly in space to imitate the pull of the earth’s gravity. 这些句子中斜体词部分都是过去分词,在句中作状语。那么过去分词作状语,有什么需要注意呢? ?过去分词作定语 ?过去分词作状语----入门篇 ?过去分词作状语----用法小结篇 ?分词作状语的区别 ?作插入语的分词 用法讲解 过去分词作定语 在第一单元,我们已经学过了过去分词作定语的用法,这里做一简单复习。 1. 过去分词作定语与定语从句: 过去分词作定语,具有形容词或副词的作用,该分词及其修饰成分相当于定语从句。如果把分词短语转变成定语从句时,这个定语从句应具备两个特征: 1)从句的主语和所修饰的先行词一致;如2)的例句1中定语从句的主语就是所修饰词a teacher。 2)从句的谓语动词为被动语态形式。

现在分词作状语的分类(伴随、让步、条件、时间等等)资料讲解

谓语动词: 有提示词, 句子缺谓语(与主语构成主谓结构) I. I _______ (tell) by my classmates about that. 2. My mother often __________ (stop) me from watching TV. 时态语态变化, 及主谓一致 非谓语动词(主动---doing , 被动---done, 目的/结果/将要to do ,) 1. We must also consider the reaction of the person __________ (receive) the gift. 2. My pupils, Tom__________ (include), liked her. 1. He entered, ________ (hold) a book in his hand. 2. He entered the room and _______ (hold) a book in his hand. 3. I politely refused her invitation and _____ (walk) away. 4. I politely refused her invitation, ______ (walk) away. 两个动词是同时发生的时候 主语+ 谓语1 + and / but + 谓语2 主语+ 谓语,+非谓语 1. When he _______ (come) in, I was reading a book. 2. Unless I ________ (invite), I won’t attend he party. 3. When _____ (hear) the news, I was excited. 4. Unless ____ (invite), I won’t attend he party. --- When / if / unless / /After/Before 等连词后没有主语+非谓语(--- ing /---ed ) , 主句---When / if / unless / /After /Before等连词+ 主语+ 谓语,主句 1. A boy ________( call ) Jack came here today 2. A boy who ________( call ) Jack came here today 3. We enjoy the movie _________ (direct) by a world famous artist. 4. We enjoy the movie which_________ (direct) by the world famous artist. 名词后没关系词时+ 非谓语, 非谓语动词修饰前面的名词做定语 名词后有关系词时+谓语,做定语从句中的谓语 1.“You can’t catch me!” Jan et shouted, _______ (run) away. 2.He said thanks and ____ (smile) a row of teeth. 3.When first ___________ (introduce) to the market, these products enjoyed great success. 4.When he_______( arrive ) at the corner , he met his friend. 5.________ ( sleep ) late, he turned off the alarm clock. 6.Don’t use words, expressions, or phrases _______(know) only to people with specific knowledge. [例1] I got on the bus and found a seat near the back, and then I noticed a man 18 (sit) at the front. (2011广东卷) [例2] He spit it out, __37___(say) it was awful. (2010广东卷) [例3]The fact that so many people still smoke in public places _______ that we may need a nationwide campaign to raise awareness of the risks of smoking. A. suggest B. suggests C. suggested D. suggesting turn

高中英语巩固练习 过去分词作定语与状语

巩固练习 Ⅰ. 用分词的正确形式填空: 1. He saw his friend ______ (go) out with Sue. 2. The bus crashed into the blue car ______ (drive) down the hill. 3. Peter hurt his leg ______ (do) karate. 4. The umbrella ______ (find) at the bus stop belongs to John Smith. 5. The people ______ (dance) in the street are all very friendly. 6. I heard my mother _____ (talk) on the phone. 7. My uncle always has his car ____ (wash). 8. We stood _____ (wait) for the taxi. 9. _____ (look) down from the tower, we saw many people walking in the streets. 10. The people drove off in a _____ (steal) car. Ⅱ. 用非谓语动词把下面复合句改成简单句。 1. I was glad when I heard the news. ____________________________________________________ 2. My idea is that we should go there on our bikes. ____________________________________________________ 3. I saw a child who was wearing very thick glasses. ____________________________________________________ 4. As I hadn't received an answer from him, I wrote again. ____________________________________________________ 5. Since this book is written in easy English, it will be useful to beginners. ____________________________________________________ 6. If weather permits, we are going to work outside. ____________________________________________________ 7. He rushed into the room and his face was covered with sweat. ____________________________________________________ 8. Because he was caught in a heavy rain,he was all wet. ____________________________________________________ 9.If these seeds are grown in rich soil,these seeds can grow fast. ____________________________________________________ 10. The concert which was given by their friends was a success. ____________________________________________________ Ⅲ. 单项选择。 1. ____ an important role in a new movie, Andy has a chance to bee famous. A. Offer B. Offering C. Offered D. To offer 2. Tsinghua University, _______ in 1911, is home to a great number of outstanding figures. A. found B. founding C. founded D. to be founded 3. Ideally _____ for Broadway theatres and Fifth Avenue, the New York Park hotel is a favorite with many guests.

现在分词短语作伴随状语

其实分词做伴随状语就是分词做方式状语的一种,伴随是一种方式。大多情况下其实方式状语从句都等于伴随状语从句。只有在just) as…so…结构中位于句首,这时as从句带有比喻的含义,意思是"正如…","就像",多用于正式文体 分词短语作伴随状语 伴随状语的特点是:它所表达的动作或状态是伴随着句子谓语动词的动作而发生或存在的 1)现在分词与过去分词作状语的区别。 现在分词做状语与过去分词做状语的最主要区别在于两者与所修饰的主语的主动与被动关系的区别。 1)现在分词作状语时,现在分词的动作就是句子主语的动作,它们之间的关系是主动关系。 )过去分词作状语时,过去分词表示的动作是句子主语承受的动作,它们之间的关系是被动关系。 比如 The teacher came in the classroom with handing a book in his hand. with handing就是个例子 过去分词,现在分词都可以做伴随状语,即在某件事情发生的时候相伴发生的事情这个句子老师进入了教室,他是拿着本书进入教室的,在他进入教室的时候他的手中有一本书(相伴)知道意思了吧。 做题的时候要注意区分什么时候使用过去分词和什么时候使用现在分词做伴随状语。一般的无非又几种情况: 1,过去分词表示一种完成了的或者是被动意义的动作 分词作状语(关键找逻辑主语) a)放在句首的分词往往看作时间状语1以及原因状语2 1. Looking (when I looked) at the picture, I couldn't help missing my middle school days. 2.Seriously injured, Allen was rushed to the hospital. =As he was seriously injured, Allen was rushed to the hospital. b)放在句中或句末常常看作为伴随状态(并列句) The girl was left alone in the room,weeping(crying )bitterly. (但注意特殊:Generally/frankly speaking... / taken as a whole(总的来讲)不考虑逻辑主语,看作为独立成分)

过去分词作定语和状语 语法 教案

teaching design(课堂设计) ----------陈建军 教材分析(the analysis of teaching material) This teaching period mainly deals with the grammar: The Past Participle as the Adverbial and Attribute. And let students to do some exercises to consolidate it. 2.学情分析(the analysis of the students) Students often feel this item abstract and difficult, so it is necessary to make the lesson interesting and connect with it with their daily life in order to let it easy to accept and understand. 3.教学目标(Teaching aims) 知识目标(Knowledge aims) Enable students to learn how to use the past participle as the adverbial and attribute correctly. 能力目标(Ability aims) Enable students to use the past participle as the adverbial and attribute correctly and properly according to the context. 情感目标( Emotional aims) a. Get students to become interested in the grammar learning. b. Develop students’ sense of group cooperation. 4.教学重点和难点(teaching important points and difficult points) a. Get students to learn and consolidate how to use the past participle as the adverbial and attribute correctly. 5.教学过程(Teaching procedures) Step1.Greetings Step2 .Check&Revision Step3.Presentation 1.过去分词作状语时,其前面可以带有相应的连词,如when, though, although, as if, if 等, 表时间,让步,条件等。 If invited, I will attend the wedding of my friend. 2.过去分词作状语时,分词的逻辑主语与句子的主语一致。 If caught, the thief will be punished by the police. 3.过去分词短语与句子主语之间存在逻辑上的动宾关系,即被动关系。 Asked why he was late, he cried. 4.有些过去分词已形容词化,作状语时表示人得状态。常见的有satisfied, interested, moved 等。 Disappointed at the examination results, the girl stood there without saying a word. Step 4 summing 巧学助记:分词作状语,主语是问题 逗号前后两动作,共用一主语 主语找出后,再来判关系 主动用ing,被动用ed Having done 表先后,千万要牢记

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