根据题目要求完成下列任务，用中文作答。

下面是某初中教师在教学一篇有关职业的课文前的活动片段。

(上课铃响，教师先让学生听一首英文歌曲，然后进行下列活动)

T: How do you like this song? Do you know the name of this song?

S1: Sorry, I don’t know.

T: It’s OK. Does anybody know the name of this singer?

S2: His name is Robbie Williams.

T: Exactly. Do you know the name of the song?

S2: A Better Man.

T: Excellent! It’s A Better Man. Hum, we don’t know much about him, but he is a singer. Well, Lily, would you like to be a singer in the future?

S3: No.

T: What would you like to be?

S3: I want to be a doctor.

T: (To S4) What would you like to be?

S4: I want to be a teacher.

…（该活动持续10分钟）

本题考查的是教学设计中的基本内容，虽然是案例分析，但是借助案例，考查了教学设计的第一个环节，导入及导入的目的和注意事项，设计意图和方法包括存在的问题，如果不是深刻理解导入的作用，就无法回答这三个问题。