三、Period / Full Stop (.) 句号、句点

句号的写法，在英文里是个小黑点(.)，可在中文却是个小圈儿(。)(在科学技术文章里
也可用“小黑点”)。用法也有些差异，在英文方面，最“好玩”的是用在缩写方面：

* 句号用在陈述句、祈使句及礼貌问句等的句尾
* 句号用在缩写方面
* 句号用在数目字方面

3.1 句号用在陈述句、祈使句及礼貌问句等的句尾：

3.1.1 用在陈述句(Declarative sentence)尾，表示句子结束：

1. I am leaving now.

2. Ailan and Xiaodong are my friends.
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3.1.2 用在祈使句(Imperative sentence)尾，表示句子结束：

1. Close the door.

2. Turn in your papers, please.
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3.1.3 用在礼貌的、祈使性的、以及间接疑问句(Interrogative sentence)尾，表示
句子结束：

1. Will you please send me three copies. 麻烦你给我三份。(不要看到Will
you...就在句尾加问号喔)

2. Since when am I supposed to believe this. 我什么时候会相信这个呢。

3. He asked if you can come. 他问你能不能来。
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3.2 句号用在表示缩写(Abbreviation, Acronym):

3.2.1 缩写词(Abbreviation)：(将一个字词省略其中某些字母,字尾须加句号)

1. 称呼：Mr. = Mister, Mrs.= Misteress, Dr. = Doctor, Mim. = Ministor /
Ministry , Esq. = Esquire (先生)

2. 时间：yr. = year, min.=minute

3. 星期：Mon. = Monday, Tues. = Tuesday, Wed. = Wednesday, Thurs. =
Thursday, Fri. = Friday, Sat. = Saturday, Sun. = Sunday

4. 月份：Jan. = January, Feb. = February, Mar. = March, Apr. = April, Jun.
= June, Jul. = July, Aug./Ag. = August, Sept. = September, Oct. = October,
Nov. = November, Dec. = December (注意：oct. = octave八度, nov. = novelist
小说家, dec. = deceased亡故)

5. 国名：Afr. = Africa / African, Aus. = Austria / Austrian, Fr. = France
/ French, Ger. = Germany, It. = Italy / Italian

6. 其他：etc. = et cetera (等), Xmas. = Christmas, min. = minimum /
minor, max. = maximum, pc. = piece, Ltd. = Limited, num. =number / numbers
(No. = Number 第几号之意)
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3.2.2 Acronym (只取首字母的缩写词)：

1. 公元：A.D. = Anno Domin(公元)，B.C. = Before Christ(公元前)

2. 邮政：G.P.O. = General Post Office, C.O.D.= Cash on Delivery, P.O. /
p.o. = Postal Order, R.T.S. = Return To Sender

3, 时间：a.m. /A.M. = ante meridiem 上午， p.m. / P.M.= post meridiem下午

4. 国名：U.K. = United Kingdom, U.S.A. = United States of America

5. 其他：F.O.C. = Free Of Charge, R.I.P. = Rest In Peace 愿他安息, r.p.m.=
Revolution Per Minute, P.T.O. / p.t.o. = Please Turn Over 翻下页，P.T.A. =
Parent-Teachers' Association 家长教师协会
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也许是大家觉得缩写词后加个小黑点是件麻烦事，因此有些就干脆省掉它，下面是一
些不加句点的缩写词：

1. 组织名：UN, UNESCO, WTO

2. 数目：$75 , 2nd , 5th , Henry V

3. 常用词：memo , math , exam , lab , dorm , TV , CD , VCD ,DVD,
PS =Postscript 附言，SARS (现在是无人不知其大名的了！)

4. 度量衡: mm , cm , km , g , mg , ml , kw , kv
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3.3 句号用在数字方面：

3.3.1 表示小数点：

1. $12.50 , ￥200.20 , RM4.45, 50.45%, 5.2 kg
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3.3.2 用于大纲列表：
例： I. 第一学期体育教学
1. 游泳
a. 自由式

注意：在括号内的数字或字母，不可加句号：
(3), (b), (Iv)