请根据题目要求进行教学分析。

以下片段选自某课堂实录，

T: Are you happy?

Ss: Yes, we are.

T: When there’s something wrong with your body, are you still happy?

Ss: No.

T: Look at the picture, is he happy?

Ss: No, he isn’t.

T: Why?

Ss: (With the teacher’s help) He has a stomachache. (Learn other phrases about illness in the  same way)

T: Now let’s learn a chant.Say first two lines of the chant after me.Say the next two lines together with me according to my action.Say the last two lines by yourselves according to my action.Now let’s start:

Head, head, I have a headache, I have a headache.Stomach, stomach, I have a stomachache.I have a stomachache.Ear, ear, I have an earache.I have an earache.Tooth, tooth, I have a toothache.I have a toothache.Back, back, I have a sore back.I have a sore back.Throat, throat, I have a

sore throat.I have a sore throat.

问题：