题目内容：
根据题目要求完成下列任务。用中文作答。下面是某教师的课堂教学片段：
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.
请根据材料回答下列3个问题。
(1)此语段教师采用什么方式讲授新知识?请具体分析。(10分)
(2)此语段教师使用了什么方法进行语言呈现?请具体分析。(10分)
(3)此语段教师采用了什么手段激发学生兴趣?(10分)
参考答案：【答案仅供学习，请勿对照自行用药等】
答案解析：