年高考英语语法讲解：分词作状语
高三英语非谓语动词分词做状语的用法[课件]
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Compared with you, we still have a long way to go. (If we are compared with you)
表示伴随情况或方式: The trainer appeared, followed by
four little dogs.
训练员出现了，后面跟着四条小狗。
*现在分词短语 作伴随或方式状语 *不可改成相应状语从句
B.过去分词作状语学与练
把下列划线部分改写成分词短语, 并 说明其功能
1.When she was asked why she did it, she began to cry.
*从句的动词用的是被动语态 *Asked why she did it, she began to cry.*过去分词短语作时间状语
*现在分词动作的发出者是( 句子主语)
1.2.After they had finished their homework they went home.
Having finished their homework, they went home.
*现在分词短语作(时间状) 语 *Having finished their homework表现的动 作在went home(之前),故用分词的( ).
went upstairs.
过去分词与现在分词作状语的区别
Seen from the top, the stadium looks like a bird’s nest.
过去分词表完成，被动，与主句的主 语 之Se间ein是g f被rom动th关e t系op。, w现e fi在nd分the词s表tad进ium行， 主动like，a与bir主d’s语ne的st.主语之间是主动关系。
2023届高考英语一轮复习语法：现在分词作状语课件
现在分词作状语...
Practice 3.The secretary worked all night long, ____a long speech for the president.
A. to prepare preparing
B. preparing
C. preparedD. was NhomakorabeaB
4.____to hospital in time, the wounded soldiers were saved at last.
C
6.Many students entered the lecture hall, ____the professor.
A. following followed
B. followed
C. to follow
D. being
A
现在分词作状语...
Practice
7. ___for two days, Steve managed to finish his report on scheduled. A.To work B.Worked C.To be worked D.Having worked D
现在分词作状语...
Practice
8. I got to the office earlier that day,___the 7:30 train from Paddington.
A.caught B.to have caught C.to catch D.having caught. D
现在分词作状语...
Practice
9.Tony lent me the money,___that I'd do as much for him.
分词作状语的用法讲解归纳
分词作状语的用法讲解归纳分词作状语是一种常见的语法结构，它可以在句子中作为状语，用来修饰动词、形容词或者整个句子，从而表达时间、原因、条件、方式、结果等不同的语义关系。
下面我将从不同角度对分词作状语的用法进行归纳和讲解。
一、时间状语：分词可以表示动作发生的时间，常用的分词有：doing, having done, done等。
例如：Walking along the street, he met an old friend.Having finished his homework, he went out to play.二、原因状语：分词还可以表示动作发生的原因，常用的分词有：seeing, considering, judging等。
例如：Seeing the heavy rain, she decided to stay at home.Considering the bad weather, we canceled the picnic.三、条件状语：分词还可以表示动作发生的条件，常用的分词有：supposing, provided, given等。
例如：Supposing the weather is fine, we will go for a picnic.Provided that you finish your work, you can go out to play.四、方式状语：分词还可以表示动作发生的方式，常用的分词有：speaking, running, working等。
例如：He ran to catch the bus, panting heavily.She answered the question, smiling brightly.五、结果状语：分词还可以表示动作的结果，常用的分词有：surprised, pleased, excited等。
例如：The news, surprising everyone, spread quickly.The children, pleased with the gifts, thanked their parents.总结起来，分词作状语的用法非常灵活多样，可以用来表示时间、原因、条件、方式和结果等不同的语义关系，丰富了句子的表达方式。
高考英语-分词作状语(共24张PPT)
1.The secretary worked late into the night, _B____a long speech for the president.
A. To prepare B. preparing C. prepared D. was preparing 现在分词作伴随状语
2.European football is played in 80 countries, ___A___ it the most popular sport in the world.
(As I thought he might be at home, I called him.)
3)表方式、伴随情况的状语 ：作伴随状语的分 词表示的动作，必须是主语的一个 动作，或是 与谓语所表示的动作（或状态）同时发生，或 是对谓语表示的动词（或状态）作进一步地补 充说明。
Eg. He sat on the sofa, watching TV.
(=He sat on the sofa, and watched TV.)
他们笑着谈着走进了教室。 _L_a_u_g_h_i_n_g_a_n_d__t_a_lk_i_n_g, they went into the classroom. 他斜靠(lean)着墙站着。 He stood leaning against the wall.(＝He stood and leaned against the wall.)
extra pay.
working
3. Seen from the top of the hill, we find
the city more beautiful. Seeing
4. Generally speak, facial expressions are
高考英语非谓语动词语法讲解(推荐)
高考英语非谓语动词语法讲解(名师总结基础语法知识点，值得下载)【非谓语动词作状语】一.不定式,分词作状语的基本原则不定式,分词作状语时,不定式,分词的逻辑主语必须与句子的主语保持一致,即不定式,分词作状语时必须和句子的主语保持一致,即不定式,分词作状语时必须和句子主语含有逻辑上的主动或被动关系,否则一般不能使用不定式,分词作状语.二.不定式作状语1.不定式作目的状语不定式作目的状语的情况比较多,如果强调目的性时,不定式前还可加in order或so as,构成"in order to do"或"so as to do"结构."in order to do"结构作目的状语时,可以放在句首也可放在句中;"so as to do"结构只能放在句中.Her mother plans to fly to Beijing at least four times a year(so as/in order)to visit her.Bob took down my telephone number so as/in order not to forge t it.2.不定式作结果状语不定式作结果状语常用在下列句式中:so...as to;such...as to;...enough to;only to(常表示以外的或事与愿违的结果);too...to等.I'm not so stupid(a fool)as to write it down.Jane hurried back only to find that her mother had left.I'm too tired to stay up longer.备注:在only too..to结构中,too...to...并非是"太....而不能..."之意.此时,与too..to..搭配的形容词常见的有pleased,ready,willing,glad,happy等.I'm only too glad to have passed the exam.3.不定式作原因状语形容词作表语时,后面可接不定式作原因状语,用以说明产生这种情绪的原因.用于这类结构中的形容词常见的有:happy,glad,sorry,anxious,proud,disappointed,angry,surprised,ready,delighted,pleased等.You will never know how happy I was to see her yesterday.4.在"主语+系动词+表语(形容词)+to do"结构中,句子的主语与动词不定式有逻辑上的被动关系,且形容词表示主语的特征或性质,这时,需用不定式的主动形式表示被动意义.该结构中常用的形容词有:easy,hard,difficult,important,impossible,interesting,pleasant,nice,comfortable,safe,dangerous等.This question is easy to answer.This book is difficult to understand.三.分词作状语1.分词作状语时其形式的选择形式意义v-ing(doing) 与句子主语为逻辑上的主动关系,与句子谓语动词动作同时发生,或基本上同时发生having+v-ed(having done) 与句子主语为逻辑上的主动关系,先于谓语动词动作发生v-ed(done) 与句子主语为逻辑上的被动关系,表完成being+v-ed(being done) 与句子主语为逻辑上的被动关系,且与谓语动词动作同时发生与句子主语为逻辑上的被动关系,且先于谓语动词动作发生having been+v-ed(havingbeen done)2.分词作状语的句法功能分词作状语时,可以表时间,原因,结果，条件,让步，行为方式,伴随状况等.为了强调,还可与while,when,once,if,unless等连词连用.When offered help,one often says"Thank you"or "It's kind of you".(时间)Separated from other continents for millions of years,Australia has many plants and animals not found in any other country in the world.(原因)Generally speaking,if taken according to the directions,the drug has no side effect.(条件)He glanced at her,nothing that though she was tiny,she seemed very well.(结果)Having been told many times,he still repeated the same mistake.(让步)The teacher came into the lab,followed by some students.(伴随)四.独立成分作状语有些分词或不定式短语作状语,其形式的选择不受上下文的影响,称作独立成分.常见的有:generallyspeaking一般来说;frankly speaking坦白地说;judging from/by...根据....来判断;considering.../taking....into consideration考虑到.....;to tell you the truth说实话;compared to/with与....相比.Judging from his accent,he is from Hong Kong.Considering your health,you'd better have a rest.To tell you the truth,I am a little tired.五.独立主格结构非谓语动词作状语时,它的逻辑主语应和句子主语保持一致.但有时非谓语动词带有自己的逻辑主语,在句子中作状语,我们称之为独立主格结构.独立主格结构的特点:①独立主格结构的逻辑主语与句子的主语不同,它独立存在.②独立主格结构中作逻辑主语的名词或代词与后面的分词或不定式是逻辑上的主动或被动关系.③独立主格结构一般有逗号与句子分开.独立主格结构的构成:①名词/代词+分词②名词/代词+不定式③with/without+名词/代词+分词/不定式The test finished(=When the test was finished),we began our holiday.The president assassinated(=Because the president was assassinated),the whole country was in deep sorrow.Weather permitting(=If weather permits),we are going to visit you tomorrow.I stood before her with my heart beating fast.【练一练】①Anxiously,she took the dress out of the package and tried it on,only (find)it didn't fit.②Clearly and thoughtfully (write),the book inspires confidence in students who wish to seek their ownanswers.③Group activities will be organized after class (help)children develop team spirit.④(spend)the past year as an exchange student in Hong Kong,Linda appears more mature than thoseof her age.⑤The lecture (give),a lively question-and-answer session followed.【非谓语动词作定语】一.不定式作定语1.作定语的不定式如果是不及物动词,或者不定式所修饰的名词或代词是不定式动作的地点,工具等,不定式后面需有相应的介词.The Browns have a comfortable house to live in.He had no place to live.2.用不定式作定语的几种情况:①不定式表将来The car to be bought is for his sister.②用来修饰被序数词,最高级或no,all,any等限定的中心词,且与中心词为逻辑上的主动关系.He was the best man to do the job.She was the first woman to win the gold medal in the Olympic Games.③有些名词的同根词常跟不定式,因而它们也常跟不定式作定语,常见的有:promise,plan,attempt,offer,decision,refusal,failure,ability,chance,warning,anxiety,eagerness,willingness,readiness等.I don't trust his promise to come for a visit.He said he had no plans to go there.He made an attempt to stand up.二.分词作定语1.作定语的及物动词的分词形式为:v-ing,being+过去分词和过去分词.当被修饰的名词与非谓语动词为主动关系时,用v-ing;当被修饰的名词与非谓语动词为被动关系且表正在进行时,用being+过去分词;当被修饰的名词与非谓语动词为被动关系且表完成时,用过去分词.The houses being built are for the teachers.(被动,正在进行)2.作定语的不及物动词的分词形式为:v-ing和过去分词.v-ing表示正在进行;过去分词表示已经完成.boiling water沸腾的水(表示正在进行)boiled water白开水(表完成)falling leaves正在下落的叶子(表正在进行)fallen leaves已经落下的叶子(表完成)developing countries发展中国家(表正在进行)developed countries发达国家(表完成)三.to be done,done和being done作定语的区别to be done表被动,将来;done表被动,完成;being done表被动,正在进行.Have you read the novel written by Dickens? (表被动,完成)Listen!The song being sung is very popular with the students.(表被动,正在进行)The question to be discussed at tomorrow's meeting is very important.(表被动,将来)【练一练】①There are still many problems (solve)before we are ready for a long stay on the Moon.②Prices of daily goods (buy)through a computer can be lower than store prices.③The flowers (smell)sweet in the botanic garden attract the visitors to the beauty of nature.【非谓语动词作宾语,补语,主语,表语】一.非谓语动词(不定式,动名词)作宾语1.下列动词一般用不定式作宾语,请牢记下面的口诀:决心学会想希望,拒绝设法愿假装.主动答应选计划,同意请求帮一帮.decide/determine,learn,want,expect/hope/wish;refuse,manage,care,pretend;offer,promise,choose,plan;agree,ask/beg,help.She pretended not to see me when I passed by.We agreed to meet here but so far she hasn't turned up yet.此外,afford,strive,happen,wait,threaten等也要用不定式作宾语.2.下列动词或词组一般用动名词作宾语,请牢记下面的口诀:考虑建议盼原谅,承认推迟没得想.避免错过继续练,否认完成就欣赏.禁止想象才冒险,不禁介意准逃亡.consider,suggest/advise,look forward to,excuse/pardon;admit,delay/put off,fancy(想象,设想);avoid,miss,keep/keep on,practice;deny,finish,enjoy/appreciate;forbid,imagine,risk;can't help(禁不住),mind,allow/permit,escape.He got well-prepared for the job interview,for he couldn't risk losing the good opportunity.此外,be used/accustomed to,lead to,devote to,go back to,stick to,object to,get down to,pay attention to,can't stand(无法忍受),give up,feel like,insist on,be busy,have difficulty(in),have a good/wonderful/hard time(in),spend time (in)等短语后也要用动名词作宾语.3.下列动词或词组既可以跟动名词作宾语,也可以跟不定式作宾语,但意义上有区别,要特别注意.to do sth.忘记要做某事forgetdoing sth.忘记已经做过某事to do sth.记着要做某事rememberdoing sth.记得曾经做过某事to do sth.努力做某事regretdoing sth.后悔做过某事to do sth.努力做某事trydoing sth.试着做某事to do sth.打算做某事meandoing sth.意味着做某事4.在动词allow,advise,forbid,permit,consider后直接跟动名词作宾语;如果后面有名词或代词作宾语,则用动词不定式作宾语补足语sb.to do sth.allow/permit/forbid/advise/considerdoing sth.Smoking is forbidden here so we don't allow you to smoke.We don't allow smoking in the wall.5.动词need,require,want作"需要",deserve作"应受,应得"解时,其后用动名词的主动形式(doing)或不定式的被动形式(to be done)表被动意义.be worth后用动名词的主动形式(doing)表示被动意义, 而worthy则需用被动形式.此外,need,require,want后可以接名词或代词作宾语,然后接不定式作宾语补足语,表示"需要/要求/想要某人做某事".to be done(需要)need/require/want doingsb.to do sth.(需要/要求/想要)名词deserve doingto be done名词be worth doingto be donebe worthy名词(表钱数或表价格的名词除外)ofbeing doneto be cleanedThe window needs/requires/wantscleaningworth visitingto be visitedThis place is worthya visitofbeing visitedconsideringThese proposals deserveto be considered6.不定式作动词(词组)tell,show,understand,explain,teach,learn,advise,discuss,ask,decide,wonder,find out等的宾语时,前面常带引导词how,what,whether,where,when,who等,但why后加不带to的不定式.备注:此用法中的不定式的逻辑主语需与句子的主语或宾语保持一致,否则用宾语从句.He showed us how to do the work.(=He showed us how we should do the work)I don't know what to do.(=I don't know what I should do.)We must decide whether to stay or go.(=We must decide whether we'll stay or go)Can you tell me why do it?①The film star wears sunglasses.Therefore,he can go shopping without (recognize).②One learns a language by making mistakes and (correct)them.③In some parts of London,missing a bus means (wait)for another hour.二.非谓语动词作补语1.后接不定式作补语的动词及动词词组advise,allow,ask,beg,cause,encourage,expect,forbid,force,get,intend,invite,love,order,persuade,prefer,remind,require,tea ch,tell,want,warn,wish,wait for,call on,depend on等.You are not allowed to smoke here.The doctor warned him not to eat too much meat.注意:think,consider,believe,suppose,feel,find,imagine,prove,appoint,judge等后常用"to be..."作宾补/主补People considered him to be a great leader.They found the answer to be quite satisfactory.Chinese food is considered to be the healthiest in the world.He imagines himself to be an able man.2.非谓语动词作感官动词(词组),使役动词的宾补listen to,feel的宾语补足语有四种形式,以see为例:doing sth.看见....正做....(宾语与宾补为逻辑上的主动关系)do sth.看见...做了....see+宾语+ being done看见....正在做(宾语与宾补为逻辑上的被动关系)done看见....被做I heard her sing an English song just now.(主动,完成)I heard her singing an English song when I passed by her room yesterday.(主动,正在进行)I heard an English song being sung by the little girl when I passed by her room yesterday.(被动,正在进行)I'd like to see the plan carried out.(被动,没有一定的时间性)2.使役动词make,let,have,get后接复合宾语的情况.do让...做....（宾语与宾补为逻辑上的主动关系）①make+宾语+done让...被做(宾语与宾补为逻辑上的被动关系)He made his workers work 12 hours a day.He tried to make himself understood.do让.....做.....(宾语与宾补为逻辑上的主动关系)②let+宾语+be done让....被做(宾语与宾补为逻辑上的被动关系)Don't let your child play with matches.Let the work be done immediately.do sth.让...做某事doing sth.使....持续做某事(宾语与宾补为逻辑上的主动关系) ③have+宾语+done使....被做(宾语与宾补为逻辑上的被动关系)备注: ⑴.have sth. done还表示"使....遭受..."之意Tom had his leg broken while playing football.Mr.Smith had his house broken into while he was away on holiday.⑵have sb. doing常用于否定句中,其中have有"允许,容忍"之意.I won't have you speaking to your dad like that.⑶have还可用于have sth. to do结构,该结构中have作"有"讲,不定式作定语.I have something urgent to inform you.to do sth.使....做doing sth.使...做(宾语与宾补为逻辑上的主动关系)⑷.get+宾语+done使....被做(宾语与宾补为逻辑上的被动关系)He got me to post the letter for him.The captain got the soldiers moving toward the front after a short rest.I'll get my bike repaired tomorrow.3.下列动词(词组)在主动语态中用不带to的不定式作宾语补足语,但在被动语态中要加上to;它们是"吾看三室两厅一感觉"-5看(look at,see,watch,notice,observe);3使(make,let,have);2听(listen to,hear);1感觉(feel) Someone was heard to come up the stairs.(三)动词leave,keep,find,catch及介词with后加非谓语动词作复合宾语的情况:sb./sth. doing sth.让某人/物一直处于某种状态(宾语与宾语补足语之间是逻辑上的主动关系,表示动作正在进行)sth. undone留下某事未做(宾语与宾语补足语之间是逻辑上的被动关系,表示被动和完成,一般以undone,unfinished,unsettled,untouched为多)1.leavesb. To do sth.让某人去做某事（不定式表示将来的动作）sth. To be done.留下某事要做It's wrong to leave the machine running.(主动,正在进行)The guests left most of the dishes untouched,because they didn't taste delicious.(被动,完成)He left,leaving me to do all the rest work.(主动,将来)We hurriedly ended our meeting,leaving many problems to be settled.(被动,将来)sb./sth. doing使某人/物一直做某事2.keepsb./sth. done使某人/物被......(表示被动且完成,或表示状态)Keep the engine running.You should keep me informed of his whereabouts.sb. doing发现某人正在做某事3.find sb/sth. done发现某人/物.....(表完成或状态)sb./sth.(to be)...发现某人/物....We found him(to be)dishonest.Often I found her quietly weeping alone.I found him buried in a novel.4.catch sb. doing sth.撞见某人正在做某事I caught John reading my private letters.sb./sth. doing(表主动且进行,或表特征)sth. being done(表被动且进行)5.with sth. done(表被动且完成,或表状态)sth. to do(表示将来)John received an invitation to dinner,and with his work finished,he gladly accepted it.With a lot of difficult problems to settle,the newly elected president is having a hard time.(四)常用不定式作主语补足语的句型Sb. be said/believed/known/supposed/reported/considered/found/thought+to do/to have done/to be done/to have been done+其他.He is said to have gone abroad.(=It is said that he has gone abroad.)Heat is considered to be a form of energy.You're supposed to pay the bill by Friday.④The managers discussed the plan that they would like to see (carry)out the next year.11。
高考英语语法详解：现在分词作状语和过去分词作状语的区别
高考英语语法详解：现在分词作状语和过去分词作状语的区别非谓语动词主要包括不定式、动名词和现在分词。
为了区分这三种不同的非谓语动词的用法和含义，我们将分别从三种非谓语动词在句子中做主语、宾语、宾语补足语、定语、状语、表语以及一些特殊结构句型等角度来区分其用法和细微含义。
1．不定式和动名词作主语的区别(1)动名词作主语通常表示抽象动作；而不定式作主语表示具体动作。
Smoking is prohibited(禁止)here．这里禁止抽烟。
(抽象)It is not very good for you to smoke so much．你抽这么多烟对你身体很不好。
(具体)(2)动名词作主语时，通常用以表示一件已知的事或经验。
不定式短语通常用来表示一件未完成的事或目的。
Climbing mountains is interesting．爬山很有趣。
(经验)Driving a car during the rush hour is tiring．在高峰时刻开车令人厌烦。
(经验)(3）不定式做主语，一般用it当形式主语，把作主语的不定式短语后置。
It took me only five minutes to finish the job.2．不定式、动名词和分词作表语的区别(1)不定式作表语1)不定式作表语一般表示具体动作，特别是表示将来的动作。
To do two things at a time is to do neither．--次做两件事等于未做。
What I would suggest is to start work at once.我的建议是立刻开始干。
2）如果主语是不定式（表示条件），表语也是不定式（表示结果）。
To see is to believe.百闻不如一见。
To work means to earn a living．工作就是为了生活。
3)如果主语是以aim，duty，hope，idea，happiness，job，plan，problem，purpose，thing，wish等为中心的名词，或以what引导的名词性从句，不定式作表语是对主语起补充说明作用。
2024届高三英语语法复习：分词作状语讲义
分词作状语一．分词1. 分词分为doing和donedoing分为动名词（n）和现在分词（adj/adv）done 表现为被动和完成。
（一般情况下，及物动词的被动表现为被动，不及物动词表现为完成）The boy punished by his mother(被动) had to sweep the fallen（完成）leaves on a windy day.2.现在分词作定语表示正在进行，过去分词作定语表示已完成。
boiling water 正在沸腾的boiled water开水developing countries发展中国家developed countries发达国家falling leaves正在飘落的树叶fallen leaves落叶the rising sun冉冉升起的太阳the risen sun升起的太阳a changing world一个正在发生改变的世界a changed world一个变了的世界二．状语从句1. 时间状语从句when, while, as while, before, after, since, until等2. 地点状语从句where, anywhere, wherever, everywhere等3. 原因状语从句because, since, as, in that等4. 结果状语从句so...that , such...that等5. 目的状语从句so that, in order that等6. 条件状语从句if, unless, in case that等7. 让步状语从句though, although, even if, even though等8. 方式状语从句as, as if, how. the way等9. 比较状语从句as, the more...the more....等每一个句子都要满足1.句子要完整2.陈述语序3.时态一致三．分词作状语状语就是动作发生的时间，地点，原因，伴随等部分。
现在分词作状语的用法讲解
现在分词作状语的用法讲解现在分词是英语语法中的一种重要的句法成分，在句子中可以作状语。
状语是限制句子的重要成分，可以修饰谓语动词、主语、宾语或整个句子，用来表示动作或状态的方式、过程、时间、条件等。
因此，要掌握现在分词作状语的用法是英语句子结构掌握的重要环节。
一、现在分词作状语的构成在英语中，现在分词作状语是由动词的不定式形式（to do）加上ing组成的。
现在分词作状语既可以表示动作发生的正在进行，也可以表示动作发生的频率，强调动作的状语成分。
二、现在分词作状语的用法1.表示正在进行的动作现在分词作状语，既可以表示动作的发生，也可以表示动作的进行。
表示动作的发生时，现在分词常与表示时间的时间状语一起使用，如these days，today，now等；表示动作的进行，现在分词常与表示动作发生的伴随动作或情况，以及表示动作发生的时间状语一起使用，如while，when，before，after等。
例如：We are studying English while listening to the teacher.我们在听老师讲话的同时，正在学习英语。
2.表示动作发生的频率现在分词作状语，也可以用来表示动作发生的频率。
此时，现在分词一般与表示动作发生的频率的时间状语，如often，always，seldom，rarely，sometimes，occasionally，hardly，never等一起使用。
例如：He is always playing computer games.他总是玩电脑游戏。
三、现在分词作状语的特殊情况1.在分词作独立主格结构在句子中，现在分词与主语之间也可以组成独立结构，即现在分词作独立主格结构，表示一种客观存在的状态。
此时，现在分词作独立主格结构，可以表示谓语动词所描述的动作发生的情况，也可以表示谓语动词的客观存在的状态。
Seeing is believing.百闻不如一见。
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2013年高考英语语法讲解：分词作状语
分词作状语
As I didn‘t receive any letter from him， I gave him a call.
->； Not receiving any letter from him， I gave him a call.
由于没有收到他的信，我给他打了电话。
If more attention was given， the trees could have grown better.
->； Given more attention，the trees could have grown better.
假如多给些照顾，那些树会长得更好。
典型例题
1）_____ some officials， Napoleon inspected his army.
A. Followed
B. Followed by
C. Being followed
D. Having been followed
答案B. Napoleon 与follow 之间有被动的含义。
being followed 除表达被动之外，还有动作正在进行之意。
followed by（被跟随）。
本题可改为With some officials following， Napoleon inspected his army.
2）There was a terrible noise ___ the sudden burst of light.
A. followed
B. following
C. to be followed
D. being followed
答案 B. 由于声音在闪电后，因此为声跟随着光，声音为跟随的发出者，为主动。
用现在分词。
3）_______， liquids can be changed into gases.
A. Heating
B. To be heated
C. Heated
D. Heat
答案 C. 本题要选一分词作为状语。
现在分词表主动，正在进行的；过去分词表被动的，已经完成的。
对于液体来说是加热的受动者，是被动的，因而选C.它相当于一个状语从句 When it is heated，
注意：选择现在分词还是过去分词，关键看主句的主语。
如分词的动作是主句的主语发出，分词就选用现在分词，反之就用过去分词。
（Being ） used for a long time， the book looks old.
由于用了很长时间，这本书看上去很旧。
Using the book， I find it useful.
在使用的过程中，我发现这本书很有用。