当前位置:文档之家› 高中英语分词作状语

高中英语分词作状语

高中英语分词作状语
高中英语分词作状语

分词短语作状语的时态和语态

分词短语作状语的时态和语态 1. 分词的时态及其判断 * 过去分词没有时态形式的变化,因此been done 和had done 任何时候都不会出现。 * 现在分词有两种时态形式: 一般形式:doing 完成形式:having done * 判断分词用什么形式主要是要与句子中的主要动词行为发生时间进行对比,如果同时或相继发生,用一般式;如果分词的行为的发生时间早于主要动词的发生时间,则用完成式。例如:--Working there, we learned a lot from them. (劳动的同时学到了许多) --Looking out of the window, I saw groups of children play games. (先望出去,接着就看到,视线没有断开) -- Having finished his work, he went to help his classmates.(完成工作在前,帮助他人在后,中间有停顿) -- Not having done it right, I tried again. (没做好在前,明显停顿后再次尝试) * 伴随状语是与主要动词的行为同时发生的动作,如果有前有后就不成其为伴随,所引不能用完成形式having done 表示,否则就是逻辑错误。 2. 分词的语态及其判断

* 过去分词本身就表示被动 * 现在分词的被动语态同样有两种形式 一般式:being done 完成式:having been done * 主动与被动的判断主要是要找到分词的逻辑主语,一般说来,用作状语的分词,其逻辑主语就是句子的主语,它们之间有两种关系:逻辑主语是分词行为的支配者,即主谓关系——用现在分词主动形式表示; 逻辑主语是分词的行为对象,即动宾关系——用过去分词或现在分词的被动形式,分别表示: 过去分词——与主要动词先后发生,如: -- Inspired him, we decided to work harder. (被鼓励接下来决定更加努力) 现在分词一般式——与主要动词同时发生,如: -- Being surrounded, the enemy was forced to surrender.(被包围的同时被迫投降) 现在分词完成式——先于主要动词的动作,如: -- Having been asked to stay, I couldn't very well leave. (先被要求留下,(考虑后)觉得不好离开。 * 独立主格结构:

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.

现在分词作状语的用法

现在分词作状语的用法 现在分词作状语: ①现在分词doing所代表的动作或状态与谓语动词是同时 或几乎是同时发生的,可以作时间、原因、方式、条件、结 果、目的、让步、伴随等状语。分词的逻辑主语就是句子的主 语。如: Rushing out of the house, he was knocked down by a car. 他一冲出屋子就被一辆车撞倒了。 My cousin went to Shenzhen, hoping to find a job there. 我表兄去深圳了,希望在那儿找份工作。 The child fell,striking his head against the door. 小孩摔了一跤,头在门上碰了一下。 In the last few years, the country has had a hard time, suffering several killer quakes. 过去几年里,这 个国家经历了艰难的时期,遭受了几次致命的地震。 Being spring, the flowers are in full bloom. 因为是春天,所以花都盛开着。

②有些分词作状语,没有逻辑上的主语,已成为习惯用法:considering, judging from, talking of, allowing for(考虑到), generally/frankly/honestly/roughly/strictly speaking, assuming that(假设)等。如: Talking of this film, its wonderful. 说到这部电影,好极了。 Assuming that it is true, what should we do now 假定那是真的, 我们现在该怎麽办 Judging by the direction of the wind, it wont rain today. 根据风向测度, 今天不会下雨。 Social psychology, strictly speaking, deals with the behavior of people in groups. 严格地说, 社会心理学研究人们的群体行为。

ing分词做状语的句子

i n g分词做状语的句子-CAL-FENGHAI-(2020YEAR-YICAI)_JINGBIAN

ing分词做状语的句子 ing分词做状语的句子现在分词作伴随状语 例句1:smoking a cigarette , he entered the meeting hall. 他抽着烟,走进了会议厅。 例句2:i gazed into the dark sky thinking about where i would belong. 凝望着漆黑的夜空,我心里思索着路在何方。 注释:现在分词作伴随状语,表示非谓语动词所表达的动作或状态是伴随着句子谓语动词的动作或状态而发生的。 现在分词作条件状语 例句1:throwing yourself into your study, you will find it pleasant and productive. 如果你投入到你的学习中去,你会发现学习即愉悦又有收获。 例句2:speaking in english everyday, you will hander this language step by step. 每天都用英语说话,你会一步一步掌握这门语言。 注释:现在分词作条件状语时相当于一个if引导的条件状 语从句。比如例句1也可以写成:if you throw yourself into your study, you will find it pleasant and productive.

现在分词作时间状语 例句1:seeing the actors singing and dancing, the little baby did likewise. 当看到演员们载歌载舞的时候,小宝宝也学者手舞足蹈。 注释:相当于when he saw the actors singing and dancing, the little baby did likewise. 例句2:having finished reading passage one, we then moved on to the second passage. 完成第一章之后,我们进而进入第二章。 注释:相当于after we finished passage one, we then moved on to the second passage. 现在分词作让步状语 例句1:being a kid, he has much knowledge about love affairs. 虽然是个孩子,他知道很多关于爱情的事。 例句2:having learned english for years, he still can't speak freely. 虽然学了很多年英语,但是他还是不能自由交谈。 注释:例句1和例句2都可以变换成though引导的让步状 语从句。比如例句1也可以写成though he is a kid, he has much knowledge about love affairs. 现在分词作原因状语 例句1:being sleepy, the boy couldn't focus on his study.

分词做状语用法总结

外教一对一https://www.doczj.com/doc/2711447148.html, 分词做状语用法总结 一、表时间 Turning around, she saw an ambulance driving up. 她转过身,看见一辆救护车开了过来。 Having found a hotel, we looked for somewhere to have dinner. 在找好旅馆之后,我们就去找吃饭的地方。 Asked why he came late, he said that got up late. 当他被问到为什么来晚了时,他说他起床起晚了。 二、表原因 Not knowing her address, I wasn’t able to contact her. 由于不知道她的地址,我没法和她联系。 Having been ill for a long time, he needed time to recover. 由于他病了很长时间,他需要一段恢复的时间。 Moved by their speech, I was at a loss what to say. 被他们的发言感动,我不知说什么好。 三、表条件 Taken in time, the medicine will be quite effective. 及时吃,这药会很有效的。 Sit down, Emma. You will only make yourself more tired, keeping on your feet. 坐下吧,埃玛。你老站着,只会弄得你更累。 Seen in this light, the matter is not as serious as people generally suppose. 如从这个角度看,问题并不像人们一般料想的那样严重。 四、表让步 Although living miles away, he attended the course. 虽然住在几英里以外,他仍去上课。 Defeated, he remained a popular boxer. 虽然被击败了,他仍是一个受欢迎的拳击手。 五、表方式 He earns a living driving a truck. 他靠开卡车谋取生。 I’m returning you letter as requested. 我按要求给你退信。 六、表伴随 I offered them something to eat, thinking they might be hungry. 我给了他们一些东西吃,心想他们可能会饿。 They came in, followed by their wives. 他们走了进来,后面跟着他们的妻子。

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)

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

分词做状语详细例句

分词做状语详细例句 1时间状语 Seeing from the top of the hill ,we can see the park clearly Seen from the top of the hill ,the park is beautiful Seeing her mother ,the baby stopped crying Seeing the cat ,the moust ran away Seeing from the space, the earth looks green Hearing his father’s voice ,the boy turned off the TV set at once Hearing their teache’s voice, the puiples stopped talking at once Having finished his homework, the boy went to bed ~ Having been shown Tianan’men Square ,the tourists were taken to visit the Palace Museum Having arrived at the farm ,the set to work immediately Having watered the flowers ,he had a rest When crossing the street ,be careful On hearing the good news ,they all jumped with joy 2 原因状语 Being poor ,he couldn’t afford to buy the car Being a teacher ,she is very kind to her students Being ill ,the boy didn’t go to school this morning Not knowing his address ,I can’t get touch with him > Taken good care of ,the old man is living a happy life Berried deep down in the earth ,the dead forests rotten away and became coal Having lived in the city for many years ,he knows the city very well Having received his letter ,he decided to write back Having been bitten by a snake ,she was frightened at it Having been told to stay in Beijing ,the young man decided not to go back his hometown Not having received a reply ,he decided to write a letter again Caught in a heavy rain ,he was all wet 3伴随状语 The old man often takes a walk ,followed by his dog ] The dog often takes a walk ,following its owner She came in the room ,following her husband She came in the room ,followed bu her husband All night long ,he lay awake ,thinking of the problem He sat in the sofa ,read a newspaper He stood there ,waching the children playing games The six blind men stood there ,begging for meal 4让步状语 Living miles away ,he attended the course

分词作状语--独立主格

分词作状语: 分词和分词短语作状语时,可以表示时间、原因、条件、让步、方式和伴随情况。在表示时间、原因、条件、让步和方式时,通常可转换为相应的状语从句,表示方式和伴随情况时,可以转换为一个并列的谓语成分。 例如:Seeing the teacher entering the room,the students stood up.(=When the students saw the teacher entering the room,they stood up.) Heated,ice will be changed into water.(=When it is heated...) Being excited, I couldn’t go to sleep.(=As I was excited,I couldn’t go to sleep.) I stood there, listening to the broadcast.(=I stood there and listened to the broadcast.) The children went away laughing.(=The children went away.They laughed as they went.) Knowing all this,they made me pay for the damage.(=Although they know all this... (3)分词作状语与主语的关系。 A. 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。 例如:He went out shutting the door behind him. Not knowing what to do, he went to his parents for help. B. 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。 例如:Given more attention,the trees could have grown better. F aced with difficulties,we must try to overcome them. (4)分词作状语时前面可用连词。 when,while,once,if,unless,though等引导的状语从句,若其主语与主句主语相同时,可保留该副词连接词,其余部分则化简为分词短语。 例如:When (being) free,I’ll fetch you. While walking along the street early in the morning,he saw her. If falling ill,I’ll see my doctor.如果生病我会去看医生。 Once completed,this power station supplies the nearby towns and villages with electricity. Even though given every opportunity,they would not try. Though knowing the truth,he remained silent. Unless (being) rich,I am not going abroad. (5)分词作状语时,要特别注意其逻辑主语须和谓语动词的主语一致,否则分词必须有自己的主语。这种带主语的分词结构称作分词的独立结构,或独立主格。 例如:The rain having stopped,the soldiers continued their match. The boys returned,their face covered with sweat. 〈注〉有时也可用“with(或without)+名词(或代词宾格)+分词”的结构,表示伴随情况。 例如:He fell asleep with the lamp burning.

分词作状语用法

分词作状语用法就是所有分词用法中最重要的,也就是最难掌握的。 分词在句中作状语时,其逻辑主语必须就是句子的主语。 一、现在分词作状语 一、现在分词作状语,表主动、进行,相当于一个状语从句,根据需要可以使用被动式或完成式。Studying at the hometown, I enjoyed the happiest time during my life、 Being ill, she can't go to work today、 The children ran out of the room, laughing and jumping、 1、He sent me an e-mail, ________ to get further information、 A、hoped B、hoping C、to hope D、hope 2、Suddenly, a tall man driving a golden carriage ________ the girl and took her away, ________ into the woods、 A、seizing; disappeared B、seized; disappeared C、seizing; disappearing D、seized; disappearing 二、现在分词的时态语态 1、现在分词的一般式由“动词+ing”构成,其被动式为“being+动词过去分词”。 例如:The students standing there are from Class Three、 The English novel being translated by the editor now will be completed in October、 2、现在分词的完成式由“having +动词过去分词”构成,其被动式为“having +been+动词过去分词”。 例如:Having finished all the work, they had a good rest、 Having been given the right answer, the teacher asked me to sit down、 Given more time, we will finish the work in time、 3、现在分词的否定式为“not +动词-ing”,被动式的否定式为“not+being+动词过去分词”,其完成式的否定式为“not + having +动词过去分词”。 例如:Not knowing what to do, he sat there crying、 Not being noticed by the public, the young writer felt a little pity、 1、_______ from heart trouble for years, Professor White has to take some medicine with him wherever he goes、 A、Suffered B、Suffering C、Having suffered D、Being suffered 2、Finding her car stolen, _______、 A、a policeman was asked to help B、the area was searched thoroughly C、it was looked for everywhere D、she hurried to a policeman for help 二、过去分词作状语 过去分词只有一种形式,即done,表被动。 The mother came in, followed by her son、 When heated,water will be turned into steam、 Deeply moved by the film, we all cried、 Born into a poor family, he had no more than two years of schooling、 1._____ from the top of the TV tower, and we can get a beautiful sight of most of the city、 A、To see B、Seen C、Seeing D、See 2、_____ in 1613, Harvard is one of the most famous universities in the United Stated、 A、being founded B、Founded C、It was founded D、Founding 三、过去分词与V-ing作状语的区别 1、分词在句中作状语时,其逻辑主语必须就是句子的主语。

(完整word版)分词作状语练习题解析

分词作状语练习题解析 1. 分词或分词短语作状语时,可以表示时间、原因、让步、条件,方式或伴随状况。通常可转换成相应的状语从句;表示方式或伴随状况时可以转换成并列句或非限制性定语从句。例如: Put into use in April000 , the hotline was meant for residents reporting water and heating supply breakdowns. 分词短语作时间状语 Blamed for the breakdown of the school computer network , Alice was in low spirits. 分词短语作原因状语 Given time , he’ll make a fist-class tennis player. 分词短语作条件状语 We often provide our children with toys, footballs or basketballs, thinking that all children like these things. 分词短语作伴随状语 2. 有时为了强调,分词前可带when, while, if, though, as if, unless等连词一起作状语,以便使句子的意思更清楚、更连贯。例如: When comparing different cultures, we often pay attention only to the differences without noticing the many similarities.

高考英语 分词作状语独立主格

分词作状语-独立主格 分词和分词短语作状语时,可以表示时间、原因、条件、让步、方式和伴随情况。在表示时间、原因、条件、让步和方式时,通常可转换为相应的状语从句,表示方式和伴随情况时,可以转换为一个并列的谓语成分。 例如:Seeing the teacher entering the room,the students stood up.(=When the students saw the teacher entering the room,they stood up.)学生们看见老师走进房间,都站了起来。 Heated,ice will be changed into water.(=When it is heated...)当冰加热时,它就会变成水。(条件、时间) Being excited, I couldn’t go to sleep.(=As I was excited,I couldn’t go to sleep.)我兴奋得睡不着觉。(原因) I stood there, listening to the broadcast.(=I stood there and listened to the broadcast.)我站在那儿听广播。(伴随) The children went away laughing.(=The children went away.They laughed as they went.)孩子们笑着走开了。(行为方式) Knowing all this,they made me pay for the damage.(=Although they know all this...)他们尽管了解这一切,还是要我赔偿损失。 (3)分词作状语与主语的关系。 A. 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。 例如:He went out shutting the door behind him.他出去后将门随手关上。 Not knowing what to do, he went to his parents for help.由于不知如何办是好,他去找父母帮忙。 B. 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。 例如:Given more attention,the trees could have grown better.如果对这些树多关心一些,它们本来会长得更好。 Faced with difficulties,we must try to overcome them.在遇到困难的时候,我们必须设法克服。 (4)分词作状语时前面可用连词。 when,while,once,if,unless,though等引导的状语从句,若其主语与主句主语相同时,可保留该副词连接词,其余部分则化简为分词短语。 例如:When (being) free,I’ll fetch you.有空时,我会来接你。 While walking along the street early in the morning,he saw her.一早在街上散步时,他看到了她。 If falling ill,I’ll see my doctor.如果生病我会去看医生。 Once completed,this power station supplies the nearby towns and villages with electricity.这个电站一旦建成,将向附近的城乡供电。 Even though given every opportunity,they would not try.即使给他们一切机会,他们也不肯试一试。 Though knowing the truth,he remained silent.虽然他知道实情,却保持沉默。 Unless (being) rich,I am not going abroad.除非有钱,要不然我是不会出国的。 (5)分词作状语时,要特别注意其逻辑主语须和谓语动词的主语一致,否则分词必须有自己的主语。这种带主语的分词结构称作分词的独立结构,或独立主格。

相关主题
文本预览
相关文档 最新文档