Task 1 Note：便条
便条是书信的一种形式，特点在于其内容比一般书信更简短，用于询问、留言、通知、要求等。便条分为两种形式：一种是请假条（病假、事假、续假）；一种是留言、通知等。便条的基本组成部分是：日期、称呼、正文和署名。
日期：便条日期通常写在右上角。一般只要写上星期几或上下午的具体时刻。写上几月几日也很普遍，但无需写年份。
称呼：给熟人、朋友留言可直呼其名，不用任何头衔。但请假条或下级给上级的留言，称呼仍应保留头衔。抬头的Dear 可用可不用。
正文：一般用一两句话写成，说明写便条的目的。请假条用语稍正式一些，基本和写信一样。
署名：常可省去书信中用的结束敬语，署上写便条者的姓名或姓或名即可。
Sample 1
I am writing to ask for a sick leave of three days, starting from today to March 6, both days inclusive. I enclose the doctor's certificate and hope that you will grant me the leave.
Sample 2
I am still lying in bed with the flu and unable to get up. I enclose a certificate from the doctor who fears that it will be another two days before I shall be able to resume my work. Please give an extension of leave for two days.
Task 2
标点符号使用规则（1）：
1. 句末用句号、问号或惊叹号。例如：
You'll have a great time and a lot of fun on the way.
Which one of you is Love?
Let him come in and fill our home with wealth!
2. 主句和从句间有连词，则不需用逗号。例如：
We are good listeners in our own language because we have had years of practice.
Li first saw the need for the book when she began helping Chinese students at her school
after they had just arrived in the country.
3. 由从属连词引导的从句用作状语位于句首，需用逗号与主句隔开。短语或单词作句子状语，后面通常也
用逗号。例如：
When dinner came, he was asked to sit beside a certain woman.
In the evening, when her husband came home, the woman told him exactly what had
happened.
However, be prepared to listen carefully because the presenters often speak very quickly.
4. 有关使用逗号的注意事项：
a. 英语无顿号；与汉语的顿号相对，英语用逗号。例如：
He liked singing, dancing and painting.
b. 日期和地点中用逗号分隔不同单位。例如：
Albert Einstein died on April 18th, 1955 in Princeton, New Jersey, USA.
