本单元提纲：
1.主题功能：A.介绍自己
B.问候他人
C.询问和告知电话号码
2. 重点单词：name, nice, your, meet, first, last, friend等。
3. 重点短语：first name, last name, telephone number, middle school等。
4. 核心句型：
---What’s your name?
---My name is Gina./I’m Gina.
Nice to meet you.
---What’s your telephone number?
---It’s 284-2942.
