下面是一篇阅读课的教学片段，请用中文从以下三个方面进行简要评析。
    1．教学方法；
    2．学生角色；
    3．教学活动。
    教学片段：
    T: (通过课件呈现图片)Look at the picture. What can you see in the picture?
    S1: I can see two butterflies/a sun/a bird/a river.
    T: Are they beautiful? It's a beautiful spring.
    教师引导学生用不同声调绘声绘色地朗读“Spring, spring. It's spring”。
    T: How is the weather in spring?
    Ss: It's warm.
    T: It's spring. It's warm. What do you like to do in spring?
    S1: I like to play basketball.
    S2: I like to have a picnic.
    S3: I like to fly a kite.
    教师教学词组fly a kite，并板书。
    学生边做动作边操练：I like to fly a kite. I like to go shopping/go fishing/take a picture/climb mountains...
    然后学生在板书“It's.../It's.../I like to...”引导下，练习说出诸如“It's spring. It's warm. I like to fly a kite.”的句子。
    教师用同样的方法教学summer, fall, winter等单词，然后过渡到对句型“It's.../It's.../I like to...”的操练，最后过渡到拓展短文My Favorite Season的阅读。学生的阅读进行得很顺利，对教师提出的问题也能轻松作答。