英语逗号的用法

Rule 1.To avoid confusion, use commas to separate words and word groups with a series of three or more. Example:My $10million estate is to be split among my husband, daughter, son, and

nephew. Omitting the comma after son

would indicate that the son and nephew

would have to split one-third of the estate.

Rule https://www.wendangku.net/doc/7d6445792.html,e a comma to separate two adjectives when the word and can be inserted between them. Examples:He is a strong, healthy man.

We stayed at an expensive summer

resort. You would not say expensive and

summer resort, so no comma.

Rule https://www.wendangku.net/doc/7d6445792.html,e a comma when an -ly adjective is used with other adjectives.

NOTE:To test whether an -ly word is an

adjective, see if it can be used alone with

the noun. If it can, use the comma. Examples:Felix was a lonely, young boy.

I get headaches in brightly lit

rooms.Brightly is not an adjective

because it cannot be used alone

with rooms; therefore, no comma is used

between brightly and lit.

Rule https://www.wendangku.net/doc/7d6445792.html,e commas before or surrounding the name or title of a person directly addressed.

Examples:Will you, Aisha, do that assignment for

me?

Yes, Doctor, I will.

NOTE:Capitalize a title when directly addressing

someone.

Rule https://www.wendangku.net/doc/7d6445792.html,e a comma to separate the day of the month from the year and after the year.

Example:Kathleen met her husband on December 5, 2003, in Mill Valley, California.

Rule 5b.If any part of the date is omitted, leave out the comma. Example:They met in December 2003 in Mill Valley.

Rule https://www.wendangku.net/doc/7d6445792.html,e a comma to separate the city from the state and after the state in a document. If you use the two-letter capitalized form of a state in a document, you do not need a comma after the state.

NOTE: With addresses on envelopes mailed via the post office, do not use any punctuation.

Example:I lived in San Francisco, California, for 20 years.

I lived in San Francisco, CA for 20 years.

Rule https://www.wendangku.net/doc/7d6445792.html,e commas to surround degrees or titles used with names. Commas are no longer required

around Jr. and Sr. Commas never set off II, III, and so forth.

Example:Al Mooney, M.D., knew Sam Sunny

Jr. and Charles Starr III.

Rule https://www.wendangku.net/doc/7d6445792.html,e commas to set off expressions that interrupt sentence flow.

Example:I am, as you have probably noticed, very nervous

about this.

Rule 9.When starting a sentence with a weak clause, use a comma after it. Conversely, do not use a comma when the sentence starts with a strong clause followed by a weak clause.

Examples:If you are not sure about this, let me know now.

Let me know now if you are not sure about

this.

Rule https://www.wendangku.net/doc/7d6445792.html,e a comma after phrases of more than three words that begin a sentence. If the phrase has fewer than three words, the comma is optional.

Examples:To apply for this job, you must have

previous experience.

On February 14 many couples give each

other

candy or flowers.

OR

On February 14, many couples give each

other candy or flowers.

Rule 11.If something or someone is sufficiently identified, the description following it is considered nonessential and should be surrounded by commas.

Examples:Freddy, who has a limp, was in an auto

accident.Freddy is named, so the

description is not essential.

The boy who has a limp was in an auto

accident. We do not know which boy is

being referred to without further

description; therefore, no commas are

used.

Rule https://www.wendangku.net/doc/7d6445792.html,e a comma to separate two strong clauses joined by a coordinating conjunction--and, or, but, for, nor. You can omit the comma if the clauses are both short.

Examples:I have painted the entire house, but he is still working on sanding the doors.

I paint and he writes.

Rule https://www.wendangku.net/doc/7d6445792.html,e the comma to separate two sentences if it will help avoid confusion.

Example:I chose the colors red and green, and blue was his first choice.

Rule 14.A comma splice is an error caused by joining two strong clauses with only a comma instead of separating the clauses with a conjunction, a semicolon, or a period.

A run-on sentence, which is incorrect, is created by joining two strong clauses without any punctuation.

Incorrect:Time flies when we are having fun, we are always having fun. (Comma splice)

Time flies when we are having fun we are

always having fun.(Run-on sentence)

Correct:Time flies when we are having fun; we are always having fun.

OR

Time flies when we are having fun, and we

are always having fun. (Comma is optional

because both strong clauses are short.)

OR

Time flies when we are having fun. We are

always having fun.

Rule 15.If the subject does not appear in front of the second verb, do not use a comma.

Example:He thought quickly but

still did not answer correctly.

Rule https://www.wendangku.net/doc/7d6445792.html,e commas to introduce or interrupt direct quotations shorter than three lines.

Examples:He actually said, "I do not care."

"Why," I asked, "do you always forget to

do it?"

Rule https://www.wendangku.net/doc/7d6445792.html,e a comma to separate a statement from a question. Example:I can go, can't I?

Rule https://www.wendangku.net/doc/7d6445792.html,e a comma to separate contrasting parts of a sentence.

Example:That is my money, not yours.

Rule https://www.wendangku.net/doc/7d6445792.html,e a comma when beginning sentences with introductory words such as well, now, or yes. Examples:Yes, I do need that report.

Well, I never thought I'd live to see the

day . . .

Rule https://www.wendangku.net/doc/7d6445792.html,e commas surrounding words such

as therefore and however when they are used as interrupters.

Examples:I would, therefore, like a response.

I would be happy, however, to volunteer

for the Red Cross.

Rule https://www.wendangku.net/doc/7d6445792.html,e either a comma or a semicolon before introductory words such as namely, that is, i.e., for example,

e.g., or for instance when they are followed by a series of items. Use a comma after the introductory word. Examples:You may be required to bring many items,

e.g., sleeping bags, pans, and warm

clothing.

OR

You may be required to bring many items;

e.g., sleeping bags, pans, and warm

clothing.

NOTE:i.e. means that is; e.g. means for

example

英语中的逗号

浅谈逗号的语用作用 有时，一个小小的逗号会直接影响到句子的结构，甚至句子的意义，在通过语境对语法知识的运用考查时，逗号的作用显得更为重要。现在高考题中对逗号的考查已成为了“热点”，因此有必要对逗号的用法做一个小结。 1．用来分开由并列连词（如：and, but, so, or, for, yet, nor等）连接的句子。如： a. Swimming is the best sport in summer, and people go swimming in rivers and lakes. b. We have won great victories, yet more serious struggles are still ahead of us. 若各句之间的关系紧凑，就可以不用连词，而只用逗号分开。如： a. The older child is a boy, the younger one is a girl. b. He slipped away, nobody knew when. 解题指导：当发现分句中有并列连词（常见的有and, but, so, or, for等）时，首先要弄清它们连接的是词与词、词组与词组、还是句子与句子，然后再利用平行结构解题。有时用来连接两个句子时中间不用逗号。如： Would you like a cup of tea or shall we get down to business right away? (NMET 1995，第36小题) 2．用于分隔主句与放在主句之前的状语（介词短语、分词短语、独立主格结构等）或状语从句。如： a. In the middle of the room, there was a big, beautiful Christmas tree. b. Being careless, he often makes mistakes. c. Lost in thought, he almost ran into the car in front of him. (NMET 1996, 第23小 题) d. While the teacher explained the text, the students listened attentively and took notes. 解题指导：主句之前的部分，不论是短语作状语，还是从句作状 语，它们都只是主句的一个辅加成分，不能单独成句。逗号连接的部分，其中一部分是句子，而另一部分也是句子形式，则按以下思路解题：“若是从句，就不能缺少连词；若无连词，就是独立主格结构。” 如： There being little time left, he left for the station in a hurry. Because there was little time left, he left for the station in a hurry. ______, Mother will wait for him to have dinner together. (NMET 1997 第21 小题) A. However late is he B. However he is late C. However is he late D. However late he is 此句中，依据选项应为从句，并在此基础上对的用法和从句中的语序进行了考

英语句子中逗号的作用

逗号的作用 1.把非谓语动词做伴随状语的部分，用逗号和句子的其他部分分开。2）非谓语动词中分词的独立结构，用逗号和句子的其他部分分开。eg.The content of tomato sauce cooked in an iron pot for three hours showed a striking increase,the level going up nearly 30 times.在这里the level going up nearly 30 times做独立结构，用逗号和句子的其他部分分开。3）分词短语可做非限定性定语(非限定性定语从句起补充说明作用，缺少也不会影响全句的理解，在非限定性定语从句的前面往往有逗号隔开，如若将非限定性定语从句放在句子中间，起前后都需要用逗号隔开。 1.限定性定语从句: 从句不能省略,如果省略整个句子意思不完整。 非限定性定语从句: 从句可以省略,如果省略整个句子意思仍然完整。 2.限定性定语从句: 先行词可以用that 引导。 非限定性定语从句: 先行词不可以用that 引导。 3.限定性定语从句: 引导词有时可以省略。 非限定性定语从句:引导词不可以省略。 4.限定性定语从句:主句与从句不需要用逗号隔开。 非限定性定语从句:主句与从句需要用逗号隔开。 5.限定性定语从句: 从句只修饰先行词。 非限定性定语从句:从句既可以修饰先行词，也可以修饰整个句子或句子的一部分。)，用逗号和句子的其他部分分开。eg.But the buffalo nickel,produced from 1931to 1938,honored a pair of connected tragedies from the settlement of the American frontier---------.在这里produced from 1931to 1938做非限定性定语，修饰the buffalo nickel，用逗号和句子的其他部分分开。4）在状语从句中，用逗号把从句和主句分开。5）把两个用and或but连接的完整句子，用逗号在and或but前分开。6）把两个或两个以上并列的平行成分，用逗号隔开。I reach for the light switch,and as it silently lights the scene,I return to bed to observe the patient with an unemotional,medical eye.在这里第一个逗号是and 连接两个完整的句子，第二个逗号是把as 引导的时间状语从句的从句和主句分开，第三个逗号是把两个或两个以上并列的平行成分，用逗号隔开。7）在非限定性定语从句中，用逗号把从句和主句分开。eg.The only light in her room is coming from a piece of medical equipment,which is flashing its red light sa if in warning.8）把插入语，用逗号和句子的其他部分分开。eg.And people who are likely to have low iron should avoid drinking coffee and tea with meals,she says,since substances in these drinks can interfere with iron being absorbed into the body. she says是插入语。9）把句子的同位语，用逗号和它前面所解释的名词或名词词组分开。eg.The first and most common is having low iron reserves,a condition that tapically has no symptoms.在这里a condition ---做同位语解释low iron reserves，用

英语标点符号大全1

中英文标点符号的读法用法大全 ⒈ 汉语中的某些标点符号为英语所没有。 ⑴ 顿号（、）：顿号在汉语中起分割句子中的并列成分的作用；英语中没有顿号，分割句中的并列成分多用逗号。如： She slowly, carefully, deliberately moved the box. 注意：类似的情况下，最后一个逗号后可加and，这个逗号也可省略--She slowly, carefully(,) and deliberately moved the box. ⑵ 书名号（《》）：英文没有书名号，书名、报刊名用斜体或者下划线表示。如： Hamlet / Hamlet 《哈姆雷特》 Winter's Tale / Winter's Tale 《冬天的童话》 The New York Times / The New York Times 《纽约时报》 另外，英语中文章、诗歌、乐曲、电影、绘画等的名称和交通工具、航天器等的专有名词也常用斜体来表示。 ⑶ 间隔号（?）：汉语有间隔号，用在月份和日期、音译的名和姓等需要隔开的词语的正中间，如"一二?九"、"奥黛丽?赫本（人名）"等。英语中没有汉语的间隔号，需要间隔时多用逗号。 ⑷ 着重号：有时汉语用在文字下点实心圆点表示需要强调的词语，这些实心点就是着重号。而英语中没有这一符号，需强调某些成分时可借助文字斜体、某些强调性词汇、特殊句型、标点停顿等多种方法。 ⒉ 英语中的某些标点符号为汉语所没有。 ⑴ 撇号--Apostrophe（'）：该符号主要表示?所有格，如Shakespear's plays / the boy's book；?数字、符号、字母或词形本身的复数，如The teacher had only four A's in his cl ass.; ?省略了字母、数字或单词，如let's（=let us）/ I've（=I have）。 ⑵ 连字号--Hyphen（-）：该符号主要用于以下几种情况。?复合词，如world- famous。?派生词的词缀与词根或词之间，如co-worker。?两个比分、比赛对手、地名、人名、数字之间，可视情况译为"比""对""至"等。?单词移行，把在一行写不开的单词按音节移到下一行，但必须注意：a. 单音节词不移行。 b. 曲折变化后的词尾，如-er/-or/-ing等一般不移行。c. 数字、缩略词不宜移行。 d. 易引起歧义的词不移行，如legend不宜移行为leg-end。 e. 移行后行尾不宜只剩一个字母，如alone不宜移为a-lone。 f. 带词缀的词应在词缀和词根处移行，如disappear移为dis-appear。 g. 复合词在复合成分之间移行，如heartsick移为heart-sick。 ⑶ 斜线号--Virgule或Slash（/）：该符号主要起分割作用，如It could be for staff and / or students. 也常用于标音，如bed /bed/。 ⒊ 某些符号在汉英两种语言中的形式不同。 ⑴ 中文的句号是空心圈（。），英文的句号是实心点（.）。

英语写作中逗号的使用规范

英语写作中逗号的使用规范 逗号的作用 逗号用来表示一个句子中的简短停暂。逗号的使用不能大意，因为一个错位的逗号可以改变整句话的原意。例如： James hit Lane, and Edward, then ran away. 詹姆斯打了莱恩和爱德华，然后跑掉了。 James hit Lane, and Edward then ran away.詹姆斯打了莱恩，然后爱德华跑掉了。 同时，当有必要澄清一个意思的时候，应该用逗号。如果随意省略逗号的使用，往往会导致歧义或者误解，例如： This lawyer, said the judge, is a fool. This lawyer said the judge is a fool. 逗号使用的场合 1. 用逗号来分开两项以上物品。在一个清单（list）中，如有超过两项以上物品，要用逗号将其分开。例如：?cars, trucks, vans, and tractors?. 在van之前加上一个逗号来区别tractor 和其他车辆不是同一类的。 2. 用逗号来分开两个平行主句。例如：?cars should park here, and trucks shoul d continue straight on?. 3. 在从句的首尾部加上逗号。例如：?Legaltranz, which is a legal English website, shares translation knowledge?. 4. 在某些引导从句后加上逗号。例如，?Having visited https://www.wendangku.net/doc/7d6445792.html,, I found it very useful?. 5. 为了避免误解，在主句中，用逗号将从句或短语分开。例如：?I did not go to work yesterd ay, because I was unwell?. 6. 在直接引语后面加逗号。例如, …He said, “my lawyer is a genius!”?. 7. 在形容词之间加上逗号（如果每个形容词用相类似属性修饰其管辖的名词）。例如：?a small, dark room?. 不过，但形容词用不同属性修饰其管辖的名词时，就不需要使用逗号。例如：?a distinguished international lawyer? 或…a shiny blue suit?.内容来源于英果网。

英语中标点符号的用法大全

英语中标点符号的用法大全 1、逗号(comma) , 英文中逗号的作用和汉语是一样的。另外，逗号还使用于用who和which的定于从句。 英文中的分号和逗号是同一符号。分号隔开并列关系的单词和短语。需要注意的是，使用了分号的短语一般最后一项内容前都是用了and或者or，此时和汉语所不同的是and或or前也应该使用分号（这是最最最常犯的语法错误之一，很多英语使用者都不知道），否则有可能造成歧义。比如，猫、狗和牛应该是"cat, dog, and ox"而非"cat, dog and ox"。 2、句号(period) . 英文中的句号的作用和汉语一样。 英文中的简写符号和句号是同一符号，比如Mr.、 Ms.、etc.等等。如果句号作为简写符号使用，那么这个词语简写前后面的符号应该照常写上，因为简写号并非句号，也不遵循句号的语法。比如Entreprise Co., Ltd或者I invited Tom, Jerry, etc..（注意两个点）。

3、冒号(colon) : 英文中的冒号的作用和汉语一样。当冒号后是引用一个人说的话，也可以使用逗号。 4、分号(semi-colon) ; 英文中的分号的作用和汉语一样。需要注意的是，分号和逗号有时是可以互相交替的，比如如下的情况。 Tom met me, and later he met Joan. Tom met me; later he met Joan. 或 Tom hates cheese, but he likes butter. Tom hates cheese; he like butter, though. 当只有两个句子相并列时，分号可以和被逗号+连结词互替。但注意第二个例子里，but的转接意是需要用其他成份补充的。 5、引号(quotation mark) 英文中的引号的作用和汉语一样，可用于引用和戏虐。 引号同时可以作为书名号，但只能使用于短诗歌，短故事，短电影和歌曲上。参见下文中“斜体字”。在英国，引用原话应该使用单引号，而话中话应该使用双引号。自然，引用和戏虐应该使用单引号了。 在美国，情况恰恰相反。另外，在美国，如果后引号和一

英文“逗号(comma)”用法

外教一对一https://www.wendangku.net/doc/7d6445792.html, 英文“逗号(comma)”用法 1. 从句什么时候用逗号，什么时候不用逗号? 简单来说，主句是重点信息，从句是补充信息。英语在句子结构上也要突出重点：当主句在句首的时候，从句前不加逗号;当从句在句首，为了突出重点，需要加入逗号突出主句。 I will visit the Tower if I go to Beijing. 重点在句首，if前就不必加逗号。If I go to Beijing, I will visit the Tower. 从句在句首，为了刻意强调重点，主句用逗号隔开。 再比如： A car might crash into his house if he were to build it on Interstate-40. if he were to build it on Interstate-40, A car might crash into his house. 2. 虚拟语气的倒装 如果你稍稍了解虚拟语气的知识，那么你应该明白一条规则：在 if 引导的虚拟语气中，可以省略掉if，将were / should/ had 提前。 所以在美国中学生必读的一本小说《To Kill a Mockingbird》中，有这样一句话： He would probably poured it into his milk glass had I not asked what the sam hill he was doing. 我现在直接告诉你这句话是一句虚拟语气，那么按照我们这条规则，上面的话就是倒装，而原本的句子应该是： He would probably poured it into his milk glass if I had not asked what the sam hill he was doing. 是不是句子一下子就变成了我们喜闻乐见的if从句，一下子就清晰了起来有木有? 而且，根据第一部分的理论，这里的 if 从句前没有必要加逗号。而且即在这句话的倒装形式里，也没有加逗号啊! 再来看题目中的句子， Violet might have won the competition to be Willy Wonka's successor, had she not eaten the inflatable gum and turned into a giant blueberry. 我还是直接告诉你这依然是一个虚拟语气，如果还原一下，把 if 加进去，变成了： Violet might have won the competition to be Willy Wonka's successor, if she had not eaten the inflatable gum and turned into a giant blueberry. 咦，为什么 if 放在后面也有一个逗号呢?

英语里逗号的使用规则精编版

COMMA （逗号） 1. In a Series –Place a comma between three or more items connected by a coordinating conjunction (在一系列——三个或三个以上项目之间放置一个逗号由并列连接词连接) Caution: Do not place commas between two items separated by and or between three items separated from one another by ands. (警告:两个项目之间不加逗号隔开或由and三个项目之间彼此分开) Incorrect(错误的)： Correct: Remember to place a comma before the coordinating conjunction joining the last two elements of the series. Otherwise, the intended meaning of the sentence may not be clear. （记得把逗号并列连接词前加入的最后两个元素系列。否则,句子的含义可能不清楚。）Confusing：

Confusing： 2. Between Coordinate Adjectives –Place commas between equal adjectives with no coordinating conjunction between them. （之间协调的形容词——与不平等的形容词之间加逗号协调它们之间的结合。） Example:

英文中正确使用逗号

在英语写作练习中，标点符号是最容易被忽视的一个问题。有的学生整篇文章一逗到底；有的则相反，全文都用句号。这样，无论文章的内容多好，结构多紧凑，逻辑性多强，但由于标点符号错误过多，文章变得不知所云。逗号是最常用的标点符号之一，也是使用中出现错误最多的。典型错误如： * He promised to come to the meeting,however,he didn't appear.他答应来开会，但是没有来。（however之前不能用逗号，应该是分号。） * I didn't know,where I should go.我不知道我该去哪。（where之前的逗号应该去掉。）* We realized,that the girl was a foreigner.我们了解到那个女孩是个外国人。（that之前的逗号应该去掉。） 那末，如何正确使用逗号呢？ 1.逗号用来隔开句中的并列成分，在最后两个成分之间的连接词之前，一般不用逗号；但如果最后两个成分太长，最好用逗号隔开，以免引起歧义。 例如： The children sang,danced, jumped and chased each other.孩子们唱歌、跳舞、欢跃，互相追逐。 I spent yesterday playing basketball,drinking beer,and telling stories.我在打篮球、喝啤酒和讲故事中度过了昨天。 2.逗号用来连接并列分句，用在连接词and,but,or,for,so,nor,yet等之前。例如： He wanted to go on,but other people disagreed.他想继续，但其他人不同意。 The young man tried,yet he failed to convince her.这个年轻人试图说服她，但是失败了。 但应注意：在汉语中，单独的逗号可以连接分句；在英语中，一般来说逗号必须与连接词一起才能连接并列分句，否则是错误的。 3.句中的名词性从句（如由that,what,where,when,if等引导）作动词的宾语时，该从句之前不用逗号。例如： Tell me what you are going to do.告诉我你打算干什么。 Tom wondered if the dinner was ready.汤姆不知道晚餐准备好了没有。 4.状语从句、介词短语或分词短语在句中作状语，放在主语之前或插在句中，其后应该

几个容易用错的英语标点符号用法

几个容易用错的英语标点符号用法 整理了一些标点符号的用法，希望能与英语爱好者一同学习、进步，同时，也欢迎大 家来补充一些有关于标点符号的用法。 I．逗号（，） 1．在并列句中，连词（and, but, or, for, so, nor, yet）的前面用逗号。 应当指出，如果两个或三个并列从句都很简短，意思又紧密相连，它们之间可以不用 连词而只用逗号： A memoir is history, it is based on evidence. 2.写日期时，如次序是月－日－年，在日和年之间加逗号。如次序是日－月－年，则 不加逗号： He was born on October 15,1983. He was born on 15 October 1983. 注意：英文中是没有顿号的，基本上可以说在中文中用顿号的地方可以用逗号取代。 II．句号（.） 1.省略词一般加句号，如：Mr. Mrs. Ms. B.A. p.m. 注意在B.A. 等词后面那个句号不要丢掉，现在有趋势在省略词后面不加句号，尤其 是在团体、通讯社和广播电台名称后面：UN NATO BBC NBC UNESCO

2.如果在一个句子后面使用省略号，后面还得加句号，即变成四个句号。 III．分号（；） 1．有些起连系作用的副词，如 however, therefore, hence, nevertheless, moreover , thus, otherwise, besides等等，不应该用作连词来联系并列从句，在它们之间应 该用分号而不是逗号。 2．如从句内已经已有标点，即使从句中有连词仍应用分号：Unfortunately, Tom couldn't come; and his absence made things difficult for us. 3. 如若干项内已有逗号，可用分号将各项分开： On the committee are quite a few well-known people; for example, Professor Zhao, Dean of the Normal College; Mr. Han, editor-in-chief of the local evening paper; Miss Xu, a popular actress; and Mr. Hu, Director of the Bureau of Culture. VI.问号（？） 1.一个文句涉及多项时，各项之后皆可打问号： Did she buy butter? milk? eggs? apples? books? 2.放在括号中的问号表示不能肯定它前面的那个词、数字或日期的准确性： The author of this strange book was born in 1078(?) and died

英语里逗号的使用规则

COMMA?（逗号） 1.?In a Series?–?Place a comma between three or more items connected by a? (在一系列——三个或三个以上项目之间放置一个逗号由并列连接词连接) Caution:??Do not place commas between two items separated by?and?or between three items separated from one another by?ands. (警告:两个项目之间不加逗号隔开或由and三个项目之间彼此分开) ??Incorrect(错误的)： Correct:? Remember to place a comma before the coordinating conjunction joining the last two elements of the series.? Otherwise, the intended meaning of the sentence may not be clear. （记得把逗号并列连接词前加入的最后两个元素系列。否则,句子的含义可能不清楚。）Confusing：

Confusing： 2.?Between Coordinate Adjectives?–?Place commas between equal adjectives with no????between them. （之间协调的形容词——与不平等的形容词之间加逗号协调它们之间的结合。） ?Example:

Incorrect: 3.?Before???between Independent Clauses in? （之前粉丝复合句句子独立子句之间的） The war lasted for two years,?but very few people supported it. （战争持续了两年,但是很少人支持它。） Caution:? Do not place a comma between two items with FANBOYS when one item is not a complete sentence. （警告:不要将两个项目之间的逗号粉丝当一个项目不是一个完整的句子。） ? Incorrect: Caution:??Do not place a comma?after?the FANBOY.? Incorrect: Note:? The comma may be omitted between independent clauses if a sentence is very short.（注:独立子句之间的逗号可以省略,如果一个句子很短。）

英语标点符号

英国英语和美国英语标点符号的差异 1．引号的用法：①属于引语的逗号、句号在美国英语中位于引号内，而在英国英语中多位于引号外；②引语内再套用引语时，美国英语中双引号在外单引号在内，而英国英语中的单引号在外、双引号在内。 在美国英语中，如果省略号恰好在句尾，就用四个点，如I…d like to...that is...if you don…t mind.... 2．冒号的用法：①在小时与分钟之间，美国英语多用冒号，英国英语多用句号；②美国 英语中，信件或演说词的称呼语之后用冒号，而在英国英语中多用逗号。 中英文标点符号的差异 汉语中目前使用的标点符号是参考借鉴西文的标点体系而制定的，它既保留了西文标点的 主体特征，又带有与汉语语言特点相适应的特色。因而，中英文标点符号之间存在着一定的差异。 ⒈汉语中的某些标点符号为英语所没有。 ⑴顿号（、）：顿号在汉语中起分割句子中的并列成分的作用；英语中没有顿号，分割句中的并列成分多用逗号。如： She slowly, carefully, deliberately moved the box. 注意：类似的情况下，最后一个逗号后可加and，这个逗号也可省略--She slowly, carefully(,) and deliberately moved the box. ⑵书名号（《》）：英文没有书名号，书名、报刊名用斜体或者下划线表示。如： Hamlet / Hamlet 《哈姆雷特》 Winter…s Tale / Winter…s Tale 《冬天的童话》 The New Y ork Times / The New Y ork Times 《纽约时报》 另外，英语中文章、诗歌、乐曲、电影、绘画等的名称和交通工具、航天器等的专有名词也常用斜体来表示。 ⑶间隔号（?）：汉语有间隔号，用在月份和日期、音译的名和姓等需要隔开的词语的正中 间，如"一二?九"、"奥黛丽?赫本（人名）"等。英语中没有汉语的间隔号，需要间隔时多用逗点。 ⑷着重号：有时汉语用在文字下点实心圆点表示需要强调的词语，这些实心点就是着重号。而英语中没有这一符号，需强调某些成分时可借助文字斜体、某些强调性词汇、特殊句型、标点停顿等多种方法。 ⒉英语中的某些标点符号为汉语所没有。 ⑴撇号--Apostrophe（…） ⑵连字号--Hyphen（-） ⑶斜线号—V irgule or Slash（/）：该符号主要起分割作用，如It could be for staff and / or students. 也常用于标音，如bed /bed/。 ⒊某些符号在汉英两种语言中的形式不同。 ⑴中文的句号是空心圈（。） 英文的句号是实心点（.）。

英语中逗号的使用

英语中有哪些单词或短语在使用时用逗号隔开啊？比如HOWEVER，for example，还有哪些啊？ 主要分几类： 1.用and，or，for，so，but连接的两个完整句中间要用逗号，当然是用在连接词前（这里完整句子是指必须都有主语和动词） 像：I cycle to school, and I walk home.这就要逗号 如果改下：I cycle to school and walk home.这就不用逗号，注意区别 2.不独立句+独立句，中间要逗号。比如像这种：When I was a child, I always played with my father.（句子内容比较弱智，主要看结构） 如果把when的部分放到后面，就不要逗号了 3.短语+句子，中间要逗号。 这个就很多了： For example, Then, After that, However, 反正就是不是句子的 4.地址每一级中间要逗号 街道，城市，省，国家 5.还有超过两个的并列成分要逗号：We bought sugar, tea, coffee, and butter.注意最后一个and前的逗号一定不要掉，我在国内的时候一直以为最后and前不用逗号…… 6.然后是插入语用逗号“夹”起来（觉得这个动词最贴切……）：Cellphone, a modern communication device, is very important to me. 再就是一些特殊的： 像You are kidding, right？ 我不知道这种叫什么 今天刚学到的新东西，英文中逗号和句号之后都需要一个英文的空格。

英语写作中的标点符号用法

英语写作中的标点符号用法（一）逗号的用法 1. 在并列连词（and, but, for, nor, or, yet ）前使用，用来连接句中的各分句。 In fact you do, but you may not remember me. （p17 全日制普通高级中学教科书（必修）英语第一册（下）Senior English for China Student’s Book 1B 以下标有页码未特别注明出处的皆出自本书） 2. 用逗号来分隔一系列单词、词组和从句。 In summer, people like to go sailing, swimming, horse-riding and rock-climbing in the mountains. （p42） Red, pink, yellow and white roses filled the huge vases. （牛津现代高级英汉双解词典第6版附录4 标点使用法） In the summer of 1984, many trees died. 3. 逗号用来分隔与句子其他部分密切相连的简短插入语或旁白。（较长的，更为突兀的或复杂的插入成分的则用破折号或圆括号。） Chemical fertilization，for example, helps to produce better crops, but is harmful to the environment. （p45-46） 4. 在并列形容词，即分别修饰同一个名词的形容词之间使用逗号，但也有的形容词之间不加逗号的。 For men, heroism was usually described as bravery and the active, successful overcoming of adversity. 5. 用逗号来分隔非限定性修饰语，即该修饰语对于句子的意义并非必不可少。非限定性修饰语与限定性修饰语的区别在于，它即使被省略，也不会改变句子的主要意思。 (1) 同位语 Ma De, former Party secretary of Suihua, in Northeast China’s Heilongjiang Province, was charged with taking bribes worth 6.03 million yuan during his 10 years in various government positions. (China Daily July29, 2005) At the World Park, one of the largest theme parks in China, visitors can look at buildings, castles and statues from more than thirty countries. （P66）注意：限定性同位语不用逗号隔开。 US President George W. Bush said on Wednesday that he looked forward to meeting President Hu Jintao later this year. （China Daily July29, 2005） (2) 从句 A brief comparison with the most famous chivalric drama, which was written fifteen years earlier, clarifies the uniqueness of Thon’s play. 与那部最着名的，完成于十五年前的骑士剧的简短比较，表明了索恩这部剧作的独特性。 When they discovered it about 1,000 years ago, they called it Aotearoa, which means “Land of the long white cloud”. （P38） (3) 副词短语和从句 Just like spoken language, body language varies from culture to culture. （P59）He was born in Yidu, Shandong Province. （P48） By the way, did you hear about Sue’s car? Oh, so that’s where it was.

非常重要的语法知识,逗号的作用

逗号在一句英语句子中的作用 1）把非谓语动词做伴随状语的部分，用逗号和句子的其他部分分开。2）非谓语动词中分词的独立结构，用逗号和句子的其他部分分开。eg.The content of tomato sauce cooked in an iron pot for three hours showed a striking increase,the level going up nearly 30 times.在这里the level going up nearly 30 times做独立结构，用逗号和句子的其他部分分开。 3）分词短语可做非限定性定语，用逗号和句子的其他部分分开。eg.But the buffalo nickel,produced from 1931to 1938,honored a pair of connected tragedies from the settlement of the American frontier---------.在这里produced from 1931to 1938做非限定性定语，修饰the buffalo nickel，用逗号和句子的其他部分分开。 4）在状语从句中，用逗号把从句和主句分开。 5）把两个用and或but连接的完整句子，用逗号在and或but前分开。 6）把两个或两个以上并列的平行成分，用逗号隔开。I reach for the light switch,and as it silently lights the scene,I return to bed to observe the patient with an unemotional,medical eye.在这里第一个逗号是and 连接两个完整的句子，第二个逗号是把as引导的时间状语从句的从句和主句分开，第三个逗号是把两个或两个以上并列的平行成分，用逗号隔开。

Commas usage 英语中逗号的使用原则

Commas This handout offers seven easy steps to becoming a comma superhero. Commas, commas, and more commas Commas help your reader figure out which words go together in a sentence and which parts of your sentences are most important. Using commas incorrectly may confuse the reader, signal ignorance of writing rules, or indicate carelessness. Although using commas correctly may seem mysterious, it can be easy if you follow a few guidelines. Beware of popular myths of comma usage: MYTH: Long sentences need a comma. A really long sentence may be perfectly correct without commas. The length of a sentence does not determine whether you need a comma. MYTH: You should add a comma wherever you pause. Where you pause or breathe in a sentence does not reliably indicate where a comma belongs. Different readers pause or breathe in different places. MYTH: Commas are so mysterious that it’s impossible to figure out where they belong! Some rules are flexible, but most of the time, commas belong in very predictable places. You can learn to identify many of those places using the tips in this handout. You probably already know at least one of the following guidelines and just have to practice the others. These guidelines are basically all you need to know; if you learn them once, you’re set for most situations. 1. Introductory bits (small-medium-large) Setting off introductory words, phrases, or clauses with a comma lets the reader know that the main subject and main verb of the sentence come later. There are basically three kinds of introductory bits: small, medium, and large ones. No matter what size they are, an introductory bit cannot stand alone as a complete thought. It simply introduces the main subject and verb. There are small (just one word) introductory bits: Generally, extraterrestrials are friendly and helpful. Moreover, some will knit booties for you if you ask nicely.