【设计意图：用猜谜语作为教学开头，活跃课堂气氛。复习了以前学过的单词，为后半部分教学做好铺垫。】
（2）New concepts
a．Demonstrate : bones, muscles ,skin with some pictures on the computer .Ask the Ss to pay more attention to “s” .Lead the Ss to read these new words several times.
b. Introduce the sentences of part 1 on the computer too. Play the audiotape part 1 as the Ss follow. Then ask the Ss to describe the pictures.
【设计意图：用CAI课件上的图片和身体的肢体去表达骨骼、肌肉、皮肤等单词的含义。使教学内容更简单、更直观，学生更容易理解和接受。活跃了学生的脑思维，将身体部位和英语单词有机结合起来，学生学起来比较感兴趣。】
c. Practice:
Listen to the story and answer the questions.
★ Do you want to be healthy?
★ You must eat good food, what’s good food?
★ Do you know what does a healthy body have?
【设计意图：听故事是英语课堂教学中一种很有效的途径，也是练习听力的一种有效的方法，做到了听和写的结合。】
d ．Game: Show some pictures of food and let the Ss to divide them: which one is good for you or bad for you .And this food good for you is good food.
Just like: fish, fruit, meat …
【设计意图：利用游戏使学生认识到什么食物是对身体有好处的，什么食物是对身体有害的。给学生创造一个快乐的学习环境。】
e. Discussion: Ask Ss to make a dialogue of what good for your health is .Then show the sentence: A healthy body has healthy bones, muscles and skin.
【设计意图：小组合作并讨论，在复习旧知的基础上总结巩固新知。】
Writing on the blackboard:
Lesson 11：This Is Good for You
bones muscles skin
What’s your favourite fruit？