英语作文寻求帮助的简单句子【一】
按要求改写句子知识点梳理
一、概述
按要求改写句子主要考查学生对句子结构的掌握以及用不同句型表达同一意思的能力。考查所涉及到的句子类型有一般疑问句、否定句、反意疑问句、选择疑问句、对划线部分提问、感叹句、保持原句意思、合并成一句、简单句和复合句之间的互换以及改为被动语态等。
二、解题时需注意的几个要点
1、时态：不同的时态相对应的助动词
一般现在时：谓语动词用原形（主语为第三人称单数时，动词加s或es，变否定句、疑问句时助动词为do或does）
一般过去时：谓语动词用过去式，变否定句、疑问句时助动词为did.
现在完成时：助动词have/has+动词的过去分词
过去完成时：助动词had+动词的过去分词
一般将来时：will/be going to +动词原形
过去将来时：would/was or were going to +动词原形
现在进行时：am/is/are＋动词的现在分词
过去进行时：was/were＋动词的现在分词
2、语态：主动语态变为被动语态的谓语结构
一般现在时：am/is/are＋动词的过去分词
一般过去时：was/were+动词的过去分词
一般将来时：will be+动词的过去分词
情态动词：can/may/must/need等情态动词＋be++动词的过去分词
3、改反意疑问句时注意hardly, never, seldom, few, little, no等词表达的是否定意义，变反意疑问句时用肯定形式。
4、在合并句子时，有些连词如not only…but also…, neither…nor…, either…or…是就近原则，连接两个主语时动词形式取决于与动词邻近的主语。而both…and…连接两个主语时,主语是复数。
5、简单句和复合句之间的互换常见的有：带有疑问词的宾语从句改为特殊疑问词＋to＋动词原形的不定式；结果状语从句so…that…改为enough to或too…to…的简单句。
6、保持原句意思改写句子时注意时态不变。
三、习题
练习一
1. We do our homework every evening. （改为否定句）
We _________ ________ our homework every evening. 对划线部分提问
________ ________ do they have a class meeting?
3. She could hardly understand this passage. (改为反意疑问句
She could hardly understand this passage, _________ __________?
4.The manager told him how to get useful information. (改为否定句
The manager _________ _________ him how to get useful information.
5. Tom’s sister can speak English and Japanese very well. (改为反意疑问句
Tom’s sister can speak English and Japanese very well, _________ _________?
对划线部分提问
_________ _________ he live twenty years ago?
7. Sam does some cleaning in the morning. (改为否定句
Sam _________ do _________ cleaning in the morning.
对划线部分提问
_________ _________ have the students worked on the survey?
9. Your father used to ride a bike. （改成反意问句）
Your father used to ride a bike, _______ ________? （对划线提问）
__________ ___________ the population of Germany?
11. Mr. Wang washes his car once a month. （改为一般疑问句）
Mr. Wang (对划线部分提问
will Susan come back from Athens?
13. My friends lost their way when they were traveling in Hong Kong. (改为一般疑问句
________ your friends ________ their way when they were traveling in Hong Kong?
14. 对划线部分提问
________ ________ has Yao Ming been in the Rocket Team?
15. She put the digital camera on the bed just now. (改为否定句
She _________ _________ the digital camera on the bed just now.
16. Mark's flown to Hainan Island for winter holidays. (改为反意疑问句
Mark's flown to Hainan Island for winter holidays, _________ _________?
(专辑. (划线部分提问
_________ did Super Girl Zhou Bichang _________ to Vienna?
18. I’ve already saved enough money to buy a new car. (改为否定句
I ________ saved enough money to buy a car ________.
19. Lily used to have long straight hair. (改为反意疑问句
Lily used to have long straight hair, ________ ________?
20. He has already been there .(改为一般疑问句
__________ he been there __________?
21.They decided that they wouldn't have the picnic because of the bad weather. (改为简单句
They decided __________ _________ have the picnic because of the bad
weather.
22. The English people hardly ever shake hands between the strangers .( 改为反意疑问句
The English people hardly ever shake hands between the strangers, __________ __________?
23. They grew some sunflowers in their garden last year.（改为否定句）
They __________ __________ any sunflowers in their garden last year.
24. Jane drinks milk every morning.（改为一般疑问句）
_________ Jane ___________ milk every morning? （就划线部分提问）
___________ map ___________ to Class 4?
26. You can choose only one of the two: a mini-TV or a DVD player. (改为选择疑问句
you want a mini-TV a DVD player?
27. That detective film is so amazing. （改为感叹句）
___________ ___________ amazing detective film!
28. He has some money left.（改成否定句）
He money left.
29. （划线部分提问）
do the members of the film society meet?
30. His mother knew why the little boy was unhappy all day. (改为一般疑问句
_______ his mother _______ why the boy was unhappy all day?
31. He looks very funny with that hat on. (改为感叹句
_______ _______ he looks with that hat on!. 对划线部分提问
_______ _______ they build this factory?
33. I have already finished the test paper.（改为否定句）
I ________ finished the test paper ________.
34. Johnson denied cheating in the competition.（改为反意疑问句）
Johnson denied cheating in the competition, ________ ________? （对划线部分提问） ________ ________ the story need to be funny?
36. Sam does some cleaning in the morning. (改为否定句
Sam _________ do _________ cleaning in the morning.
对划线部分提问 _________ _________ have the students worked on the survey?
38. （对划线部分提问） _________ _________ has he been a top fashion designer?
39. 对划线部分提问
________ ________ will they move into the new school?
40. to go to the People’s Square by underground. (对划线部分提问
________ _______ did it take you to go to the People’s Square by underground?
练习二：
1. Gold is less valuable than diamond. (保持句意不变
Gold is ________ ________ valuable as diamond.
2. He told the children to go and watch his tank of Ghost fish. (改为被动语态 The children ________ ________ to go and watch his tank of Ghost fish.
3. Unless I have a quiet room, I cannot do any work. （保持句意不变）
I cannot do any work ________ I _________ have a quiet room.
4. The manager arrived here a few minutes ago. （保持句意不变）
The manager has _________here ________ a few minutes.
5. They will send him to work in Japan for one year. (改为被动语态
He will ________ _________ to work in Japan for one year.
6. The words on the notice board are very small. I can’t see them clearly.(保持句子原意
The words on the notice board are small I can’t see them
clearly.
7. We can solve the problems with the help of the teacher. (改为被动语态 The problems can _________ _________ with the help of the teacher.
8. We can’t finish the work in such a short time. (保持原句意思
It’s _________ _________ us to finish the work in such a short time.
9. We must keep the noise under 50 dbs.(分贝（改成被动语态）
The noise must ________ _______ under 50 dbs here.
10. Mike doesn’t like classical music. Billy doesn’t either. （合并成一句） _________ Mike nor Billy __________ classical music.
11. The room is so dirty that we can’t live in it.（保持句意不变）
The room isn’t __________ _________ for us to live in.
12. No one knows when we will start tomorrow. （保持原句意思）
No one knows start tomorrow.
13. The Smiths will invite the professor to take part in the party. (改成被动语态 to take part in the party by the Smiths.
14. If you are not brave, you’ll lose your last chance.（保持原句意思）
you are ’ll lose your last chance.
15. They store much information in the computer. (改成被动语态
Much information ________ ________ in the computer.
16. Don’t throw rubbish here and there. Our teacher said to us. (合并为一句
Our teacher told us ________ ________ throw rubbish here and there.
17. If John doesn’t apologize for what he did, I will tell the teacher about his bad behavior.
（保持原句意思）
_______ John _______ for what he did, I will tell the teacher about his bad behavior.
18. I don't know where we can grow vegetables in the city. (改为简单句 I don't know _________ _________ grow vegetables in the city.
19. People used to enjoy themselves chatting on MSN when it worked well. (保持句意基本不变
People used to _________ a lot of _________ chatting on MSN when it worked well.
20. If you don’t improve your handwriting, you will lose marks in the exam. (合成同义句
You will lose marks in the exam ________ you ________ your handwriting.
21. To go fishing is fun. （句意不变 ）
_____ is fun _____ ______ fishing.
22. Dick was so short that he couldn’t touch the top of the bookshelf.（保持句意基本不变）
Dick wasn’t __________ __________ to reach the top of the bookshelf.
23. “Can I borrow your bike for a while or not?”（ 保持句意基本不变）
Tom asked his sister __________ he __________ borrow her bike or not for a while.
24. The couple couldn’t decide which flat they should choose at first. （保持原句意
思）
The couple couldn’t decide which flat at first.
25. Meaningless information is difficult for the little boy to remember. （保持原句意思）
is difficult for the little boy remember meaningless information.
26. People throw away millions of plastic bags in our city every day. （改成被动语态）
Millions of plastic bags away in our city.
27. She was so careless that she couldn’t find the mistakes in her test paper. (保持句意基本不变
She was _______ _______ to find the mistakes in her test paper.
28. We will hold the next Olympic Games in Beijing in 2008.（改为被动语态）
The next Olympic Games will _______ _______ in Beijing in 2008.
29. The elderly man pushed the birds into the river.（改为被动语态）
The birds ________ ________ into the river by the elderly man.
30. Dolphins are so clever that they can follow the instructions.（保持句意基本不变） Dolphins are ________ ________ to follow the instructions.
31. We can’t finish the work in such a short time. (保持原句意思
It’s _________ _________ us to finish the work in such a short time.
32. They invited the astronaut and his wife to the party on Christmas Eve.(改为被动语态
The astronaut and his wife _________ _________ to the party on Christmas Eve.
33. The little girl didn’t go to bed unless the grandmother told her a story. (保持句意基本不变
The little girl didn’t go to bed _________ the grandmother _________ tell her a story.
34. The plane is so big that it can carry 300 passengers at one time. （改为简单句）
The plane is big _________ _________ carry 300 passengers at one time.
35. Did they know the answer to the question? Ididn’t know… (合并为一句 I didn’t know ________ they had ________ the answer to the question.
Keys
练习一
1. don’t do 2. How often 3.could she 4.didn’t tell 5.can’t she
6.where did 7.doesn’t any 8.How long 9.didn’t he 10.What is
英语作文寻求帮助的简单句子【二】
非谓语动词系列训练（二）
一：在句子意思不变的情况下用分词或不定式改写下列句子：
1.When he saw from the top of the mountain, he viewed a beautiful city.
-----___________from the top of the mountain, he viewed a beautiful city.(用分词
2．When it was seen from the of the mountain, the city looks like a garden. (用分词 ------_____________from the of the mountain, the city looks like a garden. city. (用分词
3.When he was asked why he went there, he said he was sent there to be trained for a space flight.
-------When ________ why he went there, he said he was sent there to be trained for a space flight. (用分词
4. Do you know the boy who knows Japanese?
----- Do you know the boy ___________ Japanese? (用分词
5. Do you know the boy who is called Tom.
---- Do you know the boy ________Tom.- (用分词
6. This is the man who organized the activity.
This is the man________________ the activity. (用分词
7. He followed his students and came in.
------ He came in, ____________ his students(用分词
8. He came in and was followed by his students
----- He came in ,____________by his students(用分词
9.The woman who was dressed in a blue skirt delivered a speech to us.
---- The woman _____________ in a blue skirt delivered a speech to us. (用分词
10. Because he is a physicist, he could well explained how to do the research.
---- _______ a physicist, he could well explained how to do the research. (用分词
11. He was born on the 18th of January, 1979 in Taiwan, and he was raised by his mother and was shy and quiet during his childhood.
----- ____________on the 18th of January, 1979 in Taiwan, and he was raised by his mother and was shy and quiet during his childhood. (用分词
12. The flowers his friend gave him will die unless it is watered every day.
---The flowers his friend gave him will die unless ____________ every day. (用分词
13．When we were walking dogs, we came across a famous professor.
------ When ____________ dogs, we came across a famous professor. (用分词
14. He donated over 10 billion dollars in order that he could sponsor education, culture, sports, and public welfare in the earth-stricken area.
----- He donated over 10 billion dollars _____________education, culture, sports, and public welfare in the earth-stricken area.(用不定式
15 After he had finished his homework, he played the piano.
----- ____________ his homework, he played the piano.
16. After the bridge had been completed, it went through a hard time because of the bad weather.
----______________________, it went through a hard time because of the bad weather.
17 It is said that Bell invented the telephone.
18. Bell is said __________ the telephone. (用不定式
19. I don’t decide what I should do.
I don’t decide what__________(用不定式
20. It happened that he had been invited
---- He happened _____________
21.He was so young that he could not go to school. He was too young __________ to school.
22. When the test was finished, we began our holiday.
----- The test __________, we began our holiday.(用独立主格结构
23. As time goes by ,he becoms aware of it.
With time ________ by, he becomes aware of the significant of it.
24. The moon, which travels round the earth once every month, is a natural satellite of the earth.
---- The moon, ___________ round the earth once every month, is a natural satellite of the earth.
25. Though he had been told several times, he didn’t understand me.
-----_______ several times, he didn’t understand me.
26. After the problem was solved,he took a rest.
----With the problem ____________, he took a rest.
27. If time permits, we will
28．He lay there, his hand clenched, his eyes looking straight up.
---He lay there, his hand_______, his eyes looking straight up
29.I once read a book called Man, Woman and Child, which enabled me to understand the love in a family.
------I once read a book called Man, Woman and Child, ______________ me to understand the love in a family. (用分词
30.There are many places of interest, among which is the Yunji mountain,whose scenery is very beautiful, which attracts lots of tourists from different places every year.
------There are many places of interest, among which is the Yunji mountain,whose scenery is very beautiful, ____________ lots of tourists from different places every year. (用分词
二：非谓语动词完成句子练习
there was no doctor available. (only
, playing cards at home or taking a walk in the park? (spend
. (think
包括三名儿童）. (child
5. 根据他的话判断）, he did well in his exam. (judge
the Tang Dynasty. (date
7. This is an article （由五部分组成）five parts. (consist
five parts.(make
as soon as possible. (solve
bored a lot of fans to death. (concern
, l cannot object to your marriage. (concern
子）at school? （keep）
（躲在木箱里）behind the door. (hide
,we had to walk home last night. (be.
in the broad daylight yesterday. (rob
（满是脚印）. (mark
（石油价格上涨）, the economy of that country is slowing down. (go
18. When the national flag is being hoisted, all the students stand at attention, . (fix
him, I decided to write again. (hear
20. He doesn’t seem to mind by others. (make
next week is of great importance. (hold
is very important. (hold
is of great importance. (hold
the Third World. (belong
（致力于研究）, the professor paid little attention to his surroundings. (devote
in the morning. (come
（为了确保那孩子尽快康复），five doctors took turns looking after him day and night. (ensure
，the old man struggled to his feet. (help
, the parents were taken to the dining room. （show）
（.support）
. （drop）
, I am not familiar with this kill. (tell
（为了不被注意）by others . (notice
三：合并下列句子
1. The annual school sports meeting was held yesterday. It presented a marvelous opening ceremony.
__________________________________________________________________________________________________________________________________
2. After the opening ceremony, we sat in the base of our class. We waited patiently for the beginning of the race.
_____________________________________________________________________________________________________________________
3. Some of my classmates work very hard, and they hope to fulfill their dream. __________________________________________________________________________________________________________________________________
4..My friend Christine took part in the 800-meter race. She had received training many times, so she kept calm before the race. After 400 meters, though she looked tired, she still tried her best to run. We screamed and beat the drum when we saw she passed by. She won the medal, and we were proud of it. (把短文中的从句或并列句改成非谓语动词
____________________________________________________________________________________________________________________________________________________________________________________________________________________________
______________________________________________________________________________________________________________
四：语篇填空 用所给动词的适当形式填空。(一）
Freud was one of the first scientists [1]_________（make）serious research of the mind. The mind is the collection of activities [2]_________（base） in the brain that involve how we act, think, feel and reason. He used long talks with patients and the study of dreams [3]___________（search） for the causes of mental and emotional problems. He also tried hypnosis(催眠. He wanted to see if [4]________（put）patients into a sleep-like condition would help ease
[5]________（trouble） minds. In most cases he found the effects only temporary. Freud worked hard, although what he did might sound easy. His method involved [6]________ (sit with his patients and [7]________（listen）to them talk. He had them [8]________（talk）about whatever they were thinking. All ideas, thoughts and anything that entered their mind had to
[9]___________（express）. There could be no[10]________（hold）back because of fear or guilt. 基础写作 :最近，你就读的学校——广东实验中学高中部将举办开放日。 你将作为学校的
学生代表向前来参观的英语老师介绍高中校区的基本情况，请准备好你的解说词，文章的开头和结尾已为你写好。(学会用非谓语动词表达）
?位置交通：位于广州市西部，荔湾区；出行便利，步行到地铁站约10分钟。 ?学校历史：逾120年的悠久历史；现高中校区于2004年 竣工并投入使用。 ?校园环境：占地面积约125,000平方米；植物繁茂，绿树成荫，环境优美。 ?校园设施：课室宽敞明亮，配备齐全；拥有标准运动 设施，
其中综合体育馆可用于举办比赛、会议和典礼。
?师生情况：目前学生约3000人，教师约200人；全体师生正在
为学校更美好的明天共同奋斗。
?【写作要求】
?只能用5个句子表达全部内容。?【评分标准】 ?句子结构准确，信息内容完整，篇章结构连贯。
Good morning, teachers! Welcome to Guangdong Experimental High School!.....
__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
非谓语动词练习答案
1．Seeing 2.Seen (原句有误，请改成When it was seen from the top of the mountain,the city is beautiful (用分词 3. asked 4. knowing 5. called 6. organizing 7. following 8. followed 9. dressed 10. Being 11. Born 12. watered 13. walking 14. to sponsor 15. Having finished 16. Having been completed 17 18.. to have invented
19.to do 20. to have been invited 21. to go 22 finished 23. going 24. travelling 25. Having been toldTold 26. solved 27.permitting 28. clenched 29.enabling 30. attracting
二：非谓语动词完成句子练习
Keys:
1. only to be told (that 2. to spend your spare/free time
3. thinking about 4. including three children/ three children included
5. Judging from / by his words/what he said
6. dating back to/from (which dates back to/from
7. consisting of / which consists of
8. made up of/which is made up of 9. to solve the problem
10. concerning the football match 11. As/So far as I am concerned
12. (in keeping five children 13. hidden in a wooden box
14. There being no bus 15. to have been robbed
16. Seen from the top of 17. Seeing from the top of
18. To see 19. marked with footprints
20. the price of oil going up 21. fixed on/upon the national flag
22. with (both his hands tied 23. Not having heard from
24. (his being made fun of 25. to be held
英语作文寻求帮助的简单句子【三】
??年级英语暑假改写句子的练习题1. It is fun at school.
改成否定句__________________________________________
改成一般疑问句______________________________________
肯定回答_____________________________________________
否定回答_____________________________________________
2．I like grapes.
改成否定句__________________________________________
改成一般疑问句______________________________________
肯定回答_____________________________________________
否定回答_____________________________________________
3. Miss Green is a good English teacher.
改成否定句__________________________________________
改成一般疑问句______________________________________
肯定回答_____________________________________________
否定回答_____________________________________________
4. Norman likes maths.
改成否定句__________________________________________
改成一般疑问句______________________________________
肯定回答_____________________________________________
否定回答_____________________________________________
5. Jim is watching TV.
改成否定句__________________________________________
改成一般疑问句______________________________________
肯定回答_____________________________________________
否定回答_____________________________________________
6．There are so many animals.
改成否定句__________________________________________
改成一般疑问句______________________________________
肯定回答_____________________________________________
否定回答_____________________________________________
7．I can hear something in the next room.
改成否定句__________________________________________
改成一般疑问句______________________________________
肯定回答_____________________________________________
否定回答_____________________________________________
8. I’ve got the letter“n”.
改成否定句__________________________________________
改成一般疑问句______________________________________
肯定回答_____________________________________________
否定回答_____________________________________________
9. MMike has got a picture of Shanghai.
改成否定句__________________________________________
改成一般疑问句______________________________________
肯定回答_____________________________________________
否定回答_____________________________________________
10．There’s a big playroom in our school.
改成否定句__________________________________________
改成一般疑问句______________________________________
肯定回答_____________________________________________
否定回答_____________________________________________
11. They have got some bananas.
改成否定句__________________________________________
改成一般疑问句______________________________________
肯定回答_____________________________________________
否定回答_____________________________________________
12. Tom and Jim are watching a match.
改成否定句__________________________________________
改成一般疑问句______________________________________
肯定回答_____________________________________________
否定回答_____________________________________________
13. I want some carnations for my mother.
改成否定句__________________________________________
改成一般疑问句______________________________________
肯定回答_____________________________________________
否定回答_____________________________________________
14. Those are roses.
改成否定句__________________________________________
改成一般疑问句______________________________________
肯定回答_____________________________________________
否定回答_____________________________________________
英语作文寻求帮助的简单句子【四】
一． .................................................................................................................................................. 1
二． .................................................................................................................................................. 1
三． .................................................................................................................................................. 2
四． .................................................................................................................................................. 3
五． .................................................................................................................................................. 8
一简述
1. 当过去分词在句末时，不管有无逗号，都是就近修饰名词;
2.现在分词在句末时，无逗号是就近修饰的名词的定语；
3.当现在分词在句尾且前有逗号时,修饰邻近句子的'主语,做主语的伴随状语或做句子的伴随结果.因此不能用句尾现在分词修饰前面句尾的名词. 所以OG127说C选项:"the phrasehaving been assigned...is uncertain in reference,making the sentence unclear."-->就是说这个现在分词本来是应该修饰前面的employee的,却变成了修饰主语governments了. (另外在GMAT里,having been done的用法错误,应直接用done
避免上述错误的方法:所修饰的名词在句尾用定语从句修饰--OG127正确选项B (而不用加逗号的现在分词修饰.其实分词是定语从句的省略形式,在句中无逗号分词(注意是无逗号的,有逗号的在句中有歧义就比定语从句简洁还有 OG120也是同样道理:修饰句尾名词,正确选项A用定语从句.E选项的句尾现在分词错误.
4.当现在/过去分词在句中且前没有逗号,修饰前面紧邻名词;
5.当现在/过去分词在句中且前后都有逗号,有歧义:1修饰前面紧邻的名词,2向后修饰后面句子的主语.
这种结构在GMAT肯定错,如果修饰某句主语,则避免将该分词置于以名词结尾的句后.避免方式:1用定语从句/介词短语明确修饰对象.2可将分词提到句首,所修饰主语及所在句子紧跟其后-->形成句首分词修饰句子主语.见OG179
6.在前面有多个名词如名词1+介词+名词2结构,而要用分词修饰名词1时,为避免歧义要重复名词1即用同位语结构:名词1+介词+名词2,名词1+分词.见OG208
二．
1、doing/done,SVO 注意分词的逻辑主语与S一致
2、介词/连词+doing/done,SVO 也要注意分词逻辑主语与S一致
3、S,doing/done,V 分词作定语修饰主语（前后一对逗号隔开，相当于定语从句）
注意：如果出现: “名词,doing,名词”，则会有分词前后的修饰歧义，如179DE，245E
4、SVO doing 分词作定语修饰主语，如 96AC，121C，146E，222A，234B，237E
5、SVO,doing
A、分词优先作状语
1）修饰主语（与分词在句首一样，注意逻辑主语），如 33B，39C，44B，120E，163D，256B
2）修饰主句动作，如 78BD，119B，154A，259A
B、其次作定语，但没有定语从句清晰，会有修饰歧义，如 253DE，（“，including”除外 249）
6、SVO done 分词作定语修饰O（同4）
7、SVO,done
A、分词作状语修饰S，如 大全558
B、分词作定语修饰O，如 127A（分词相当于形容词 253A）
some people base on sth是绝对错误的。但是有sb. base sth. on sth.的用法. 三．
1.SVO+doing,无逗号的情况下doing是针对宾语的动作,96AC(OG says : assuring针对主语有问题，121C，146E，222A(OG says: enabling很好的修饰了宾语，234B，237E -------以上证明了ets的偏好,svo+doing修饰主语是模糊的,修饰宾语是清晰的
2.SVO, doing有逗号,33B，39C(Og says:protecting很好的
解释了主语的行为，44B，120E(Og says:错误选项有可能混淆的指代主语而不是逻辑上正确的宾语，163D(Og says:sleeping正确的修饰了主语，256B --------以上证明了在Og中svo,doing的doing多指代主语
3.svo,doing有逗号,78BD(doing指代了前面整个句子的行为，119B(同前，154A(*，259A(同前------------以上证明了Og中svo,doing的doing多指代前面的整个句子
四．例子
产生participle phrases原点是为了to reduce wordiness by replacing longer adverbial or relative clauses，另外要强调的重要讯息不会写成participle phrases，因为分词修饰语属于次等地位(The
modifier is subordinate to the main clause。也就是说A….and B…(A与B一样重要，如果A…V..,B...Ving (就重要性而言A>B
简单一句：分词构句是主要句子的意义延伸。
目前我看到有几种句意：
1. 因果(★★★★★
2. 补述：解释某事(★★★、描述状态并列或伴随(★★、纯举例
participle
phrases如此具困扰性是因为可以改写的来源多
1.由adj. clauses (如who, which开头可改写成分词词组。考题中可分形容词子句限制性、非限制性改分词的考法。
2. 副词子句(有连接词开头的也可改分词词组，所以有因果关系或时间关系，单纯就时间关系看，可以有先后或同时，会有动作是伴随或是并列关系。
3.当三个以上的动词用and相连时，后面的部分也改写成分词(V, Ving... and Ving...。
我看过的说法中，觉得Manhatan GMAT备考网站，里面指导员所讲的分词概念不错，但是他的目的在卖书，所以讲的真的不多。
1.当分词构句放句首，修饰后面句子的主词。前几天看到有人发帖的整理，讲到分词在句首，表示此动作先于主要句子的动作，讲的真好。
2.当分词构句不放在句首时:
if
there's NO COMMA before a participle, then the participle creates an adjective phrase that modifies the noun immediately
preceding.
if
there's a COMMA before a participle, then the participle creates an adverb phrase that modifies the action of the preceding
clause.
PS：逗号的产生可能是插入语，遇到插入语可以跳过不看，不代表分词修饰这个插入语。
判断上抓前句的动词与主词，如果用中文想就是「此主体这个动作的行为导致或表示.....」(to modify the action of。而且不可以只有思考主词或动词。 如果遇到前句有数个动词，以找最近的动词为主，譬如V1 to V2，分词构句修饰V2
3.
participle (V-ing after the comma can not modify the subject of the preceding clause's
noun.
這個考「什么情况下不可以改成分词构句?」除了需要有对等连接词的句子，不可改分词构句，因为句意重要性会被改变外，
打逗号的Ving分词，无法修饰逗号之前的名词，所以非限制的形容词子句最好不要改分词Ving构句(有7個考題，但是Ved分词例外(有两个考题。
