发布网友 发布时间:2022-04-24 15:05
共1个回答
热心网友 时间:2022-05-02 04:50
冒号
就相当于
后面跟的内容,是对前面内容的完善
1、用在公函上收信人的称呼
==
Dear
Sir:
(可变逗号
--
下面是要说的话)
2 用于分开标题和副标题
(当一标题需要进一步说明时所加上的副标题)
Math
Applications:
Using
Calculus
to
Determine
the
Age
of
Rocks
3、对句子加以补充,使其完善
a)
冒号后跟单词
A
repairman
must
have
three
things:
a
screwdriver,
a
hammer,
and
a
saw.
b)冒号后跟句子
The
plan
contains:
(1)
.....
(2)
....
(3)
....
还有时间的分割也用冒号。比如
时间
7:30;比如
比例
2:1
等等
破折号
就是
后面跟的内容相当于前面内容的同位语,
作用如下:
1、表进一步解释
It's
an
environmental
issue.
——
That's
not
a
small
matter.
2、表插入
Jane
——one
of
my
friends——came
to
see
me
yesterday.
3、表转折
"And
may
I
ask—"said
Pill,"but
I
thin
it's
better
for
you
to
ask
him.
4、
表说明
Only
one
thing
I
have
to
do
——
reading.