逗號(hào)/逗點(diǎn)在中文或英文里是再普通不過的一個(gè)標(biāo)點(diǎn)符號(hào)；可是，它的用法在中文和英里可就不一定相同了。

二、Comma (，) 逗號(hào)、逗點(diǎn)

在英文里，逗號(hào)的用途有：

* 連接句子里不同的成份

* 分開句子里不同的成份

* 突出句子里的某個(gè)成份

* 替代句子里的某個(gè)成份

成份指：詞、短語(phrase)、子句(clause)等。

2.1連接句子里不同的成份

2.1.1 逗號(hào)用在以 and, but, for, nor, or, so, yet 等連接詞的兩個(gè)主要子句之間：

1. My father is fond of fishing, but my mother prefers hiking. (以 ,but 連接兩個(gè)子句)

2. He painted the exterior of the house, and she painted the interior. (以,and 連接兩個(gè)子句)

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2.2分開句子里不同的成份

2.2.1 用逗號(hào)分開兩個(gè)以上的并列形容詞：(如果并列的形容詞之間可加上and,but等，那就加上逗號(hào)；否則不可)

1. That tall, distinguished, good looking fellow. (可寫成 He is a tall and distinguished fellow.)

2.She is a little and old lady. (不可寫成 She is a little, old lady.)

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2.2.2在兩個(gè)修飾主語的短語之間加上逗號(hào)(句短可不加)：

1. While waiting for the bus on that cold rainy night, she started sneezing. (主語she)

2.At 10 o'clock the bus arrived.(不必寫成 At 10 o'clock, the bus arrived.)

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2.2.3在 Jr., Sr., Esq., Ph.D., F.R.S., Inc., 等名稱之前及后都要加上逗號(hào)(除了所有格的名稱):

1. They identified him as Howard R. Williams, Jr., chairman of their board.(,Jr.,)

2.That is Howard R. Williams, Jr.'s company.(,Jr.'s后面不可再加逗號(hào))

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2.2.4在追問句之前加逗號(hào)：

1.Do it, won't you?(Do it 是命令語氣，won't you?是追問)

2.You know the answer, don't you?

3.It is warm today, isn't it?

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2.2.5一個(gè)以副詞或副詞短語開頭的句子，如果它和前面的句子有關(guān)聯(lián)的話，必須在有關(guān)副詞或副詞短語后加上逗號(hào)：

1.She believed he had the talent to succeed.Unfortunately, he was lazy.

(后一個(gè)句子以副詞 unfortunately 開頭，同時(shí)這個(gè)句子和前一個(gè)句子有直接的關(guān)聯(lián))

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2.2.6 在句子里有超過三個(gè)并列詞或短語等，在最后一個(gè)，and, or, nor等

之前加逗號(hào)：

1.He promised to supply the pencils, pens, and notebooks for the class.

(簡(jiǎn)單說就是 pencils, pens, notebooks 要寫成 pencils, pens, and notebooks)

2. Her mother sells tomatoes, potatoes, apples, and peaches. (...apples,and...)

3. She ran up the stairs, across the porch, and into the house.(up the staris, across the porch, into the house 是三個(gè)短語，在最后一個(gè)加 ,and)

4. We all agreed that she was beautiful,that she was intelligent, and that she was ambitious.(三個(gè) that she was...都是子句 )

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2.2.7 在句子中加上逗號(hào)，以免引起誤解：

1.That she knew where the money was, was news to me.(如果was, was 之間不加逗號(hào)，是不是會(huì)引起誤解呢？)

2.Outside, the lawn was cluttered with hundreds of broken branches.

外面的草坪上到處是斷枝。

(如果outside 后去掉逗號(hào), 那意思就變成“在草坪的外面到處是斷枝?！?

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2.2.8 用逗號(hào)分開引用句：

1. “You are beautiful,” he said.(這個(gè)逗號(hào)要放在引號(hào)內(nèi))

2.Our teacher said, “Freedom is not license.”(...said,)

3. “No,” she said, “I was just testing your patience.” (No, /....said,)

4. “Perhaps,”Tom responded, “I will try anyway.” (Perhaps, /responded,)

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2.2.9逗號(hào)用以分開星期、月日、年份：

1. On Monday, May 5,2000,her first child was born. (Monday, May 5,2000, )

2. On March 8, 2003,he bought a new car. (March 8, 2003, )

3. June 2000 is one of the most meaningful of my life.(只有月和年，就不必加逗號(hào))

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2.2.10 逗號(hào)用以分開地名、省名、國(guó)名、街道名、巷弄名等：

1. Linda lives at 1234 Amarillo Ave., #1, Palo Alto, CA 94303, U.S.A.

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2.2.11 逗號(hào)用在 such as 和 especially 的前面：

1. They enjoy outdoor sports, such as hiking and riding.

2. He likes all extracurricular activities, especially basketball playing.

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2.3突出句子中某個(gè)插入成份(Parenthetical elements):

所謂插入成份，是指在句子中去掉它也可成立的成份。插入成份一般是感嘆詞、狀語、副詞子句等。

2.3.1句子里插入的詞、短語、子句等,加上逗號(hào)以示插入成份：

1.He knew, however, that no one would listen to his warning.( 插入however)

2. No, you may not come with us.(插入 No)

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2.3.2用逗號(hào)分開“乃此非彼”的結(jié)構(gòu)：

1.Jane, not Shirley, will attend the meeting.(是 Jane，不是 Shirley)

2.He wanted to see Mr. Wu, not Mr. Hu. (是吳先生，不是胡先生)

3.Some say the world will end in ice, not fire. (是冰，不是火)

4.It was her money, not her charm or personality, that first attracted him. (為的是她的財(cái)富，不是為了她的嫵媚或個(gè)性)

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2.3.3句中有非限制性的詞或短語之類，以逗號(hào)標(biāo)出以示插入成份：

1.Her husband, Bill, is a scientist. (Bill 為插入成份)

2.Kent Howard, my English teacher, is from America. (插入成份 my English teacher)

3.Her father, who is a famous scholar, teaches English.(插入成份 who is a famous scholar)

4.Eleanor, his wife of thirty years, suddenly decided to open her own business. (試將插入成份 his wife of thirty years 去掉，句子是否也能成立？)

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2.3.4句中的城市名如果和它的省、州、國(guó)名并列，省、州、國(guó)名前后須加逗號(hào)：

1.We visited Hartford, Connecticut, last summer. (Connecticut 為插入成份)

2.Paris, France, is sometimes called "The City of Lights." (France 為插入成份)

3.Hartford, Connecticut's investment in the insurance industry is well known.(Connecticut's 為所有格式，后面不可加逗號(hào)喔)

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2.3.5句中帶著連接詞(but, and, or...)的插入成份的前面不可加上逗號(hào)：

1.The Red Sox were leading the league at the end of May, but of course, they always do well in the spring. (but 的后面不可加逗號(hào))

2.The Tigers spent much of the season at the bottom of the league, and even though they picked up several promising rookies, they expect to be there again next year. (and 的后面不可再加逗號(hào))

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2.3.6 向人說話時(shí)，逗號(hào)放在對(duì)方名字或稱謂之后、之前或者前后都加：

1. John, come here.(John, 逗號(hào)在名字之后)

2. Open the door, John.( ,John 逗號(hào)放在名字之前)

3. It is, Sir, not my fault. ( , Sir, 逗號(hào)放在稱謂前面和后面)

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2.4替代句子里某個(gè)成份

2.4.1用逗號(hào)替代句子里某部份，表示字詞的省略：

1.The lion is the symbol of courage; the lamb, of meekness. (the lamb, of meekness 原本應(yīng)該是 the lamb is the symbol of meekness)

2.George was the hard worker, John, the lazy one.(John, the lazy one 原本應(yīng)該是 John was the lazy one)

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