难点：运用功能语句： It's ...for ... It's ...　描述事物特征

五、教学资源单词卡片，课文图片，实物，书包

六、Teaching Procedure（教学过程）

Step1：Warming-up（热身运动）

1、Sing the song

（设计意图：通过唱这首歌复习一些表示颜色的词）

2. Let's chant

T: All eyes on me, please.

Small, small, small, my eyes are small;

Big, big, big, my mouth is big;

New, new, new, my clothes are new;

Old, old, old, my bag is old. （配合动作）

（设计意图：通过说唱歌谣配合教师的夸张动作，调动课堂气氛，复习small, big, old, new的词汇，为新课做准备。）

Step2:新课呈现

1、T: Close your eyes.(拿出一个红色的大气球)Look! What's this ? What color is it? Can you talk something about it?

Ss: It's a balloon. It's red. It's...

T: Yes. It's big and light. 引出课题并板书，教授单词light。

【设计意图】用漂亮的红气球吸引学生的注意，激发学习兴趣。

2、创设情境呈现单词：

（1）教授单词"broken" 、"pocket"

T：We have got a big balloon. Now let's look.（教师弄破气球问：what happened? ）学生回答气球破了，教师出示单词："broken" 顺势把破气球装在口袋里，问： Where is my broken balloon? 指着口袋教学单词"pocket"。

（2）教授单词"heavy"

T: (出示英语书和英语字典)Look ,I have got two books.(引导学生说) 这本英语书很薄而这本字典却很厚.从重量上来讲This English book is .... This dictionary is .... Yes it's heavy. 板书heavy.

T:现在我来拿拿这两本书，看看你有什么感想？引出easy hard

【设计意图】用实物形象直观，学生更容易理解新单词，TPR教学方法能给学生真实语境学习英语，轻快的歌谣能巩固新单词和句子。

Chant:

Boys and girls, let's have a chant .

Light, light, light, the book is light.

Heavy, heavy, heavy, the dictionary is heavy.

Broken, broken, broken, the ballon is broken.

Pocket, pocket, pocket, I have some pockets.

[活动意图]: 有节奏的歌谣琅琅上口，能帮助学生很快记住这些单词。同时