英文行文格式1-句号逗号

英文行文格式1-逗号句号

1.逗号(,)(Comma)

逗号表示句子内部的一般性停顿。

1.1 在并列句中连词yet，but，or，for，so，nor，and等的前面用逗号。例如：

●She asked the question in a loud voice, but no one answered

●She was tired, and she decided to have a rest

●Hurry up, or you’ll miss the plane．

●She couldn’t go t o the park to meet him, nor could she send anyone instead of her．

●It must have rained last night, for the ground is wet．

●He is a clever boy, yet you can’t help liking him．

1.2 如果短语或状语从句被放置在句子的主语前面，或放在句子中间时，后面应该用逗号。例如：

●When the bell rang, the children r ushed out of the classroom.

●In the ancient palace, they saw the throne where emperors used to sit.

●To see the importance of this road, one has to look at a map.

●Born and brought up in the South, she is not used to eating wheat．

●The audience, interested in the topic, asked the speaker many questions．

1.3 一组作用相同的词或短语在一起使用时要用逗号分开。例如：

●She buys beer, milk, vegetables, and many other things from this supermarket．

1.4非限定性定语从句或短语和句子的主要部分之间要用逗号隔开。例如：

●Zhang Hua, who is the best student of the class，will go to a famous college.

●He had to leave his hometown, where he had 1ived ever since he was born.

●Mr. Li, the new chairman of the department, will speak at the meeting.

●An old lady, nodding and smiling, invited us in.

1.5 插入语的前后需用逗号分开。例如：

●The director, in f act, has done very little work.

●Your work, I’m sorry to say, is not satisfactory.

1.6 逗号也常常出现在下列句子中。例如：

●Yes, I do.

●No, I don’t think so.

●She is the new student, isn’t she?

●The meeting will hold on January 25, 2005.

●He said, “It is a fine day today.”

●“It is a fine day today,” he said.

●“Today,” he said, “is a fine day.”

●This factory produced 830,000 bicycles last year.

写日期时，如次序是月、日、年，那么逗号要加在日和年之间。如果次序是日、月、年，就不需要加逗号。例如：

●He was born on March 15, 2005.

●He was born on 15 March 2005.。

千以上的数字可用逗号按千数把数字分开，也就是从右至左每三个数字后加一个逗号。例如：

19,087，123,654,085

另外有一点需要注意，英文中不用顿号(、)。中文用顿号的地方英文可以用逗号。

2.句号(.)(Period)

句号用在陈述句、语气舒缓的祈使句和间接引语问句之后。例如：

●Many people get up late on Sunday.

●Learn to use the punctuation marks.

●He asked how the semicolon should be used.

句号表示句子末尾的停顿。如继续往下写的话，下一个词的首字母就该大写，因为这意味着又一句话的开始。

省略词一般加句号。例如：

U.S.A a.m. Dr. Mr. Mrs. Ms.

在一些省略词后不加句号，尤其是在团体、通讯社和广播电台的名称后面。例如：

BBC NBC NATO UN UNESCO YMCA