2、辅助手段：（1）制作多媒体课件来辅助教学，CAI能制作出色彩鲜艳的视角效果，能够更好地吸引学生的注意力。相对传统教学手段来说，CAI产生的效果更加明显。
3、准备材料：实物、图片、课堂练习等。
七、教学流程图
八、Teaching steps
StepⅠ Revision and warming-up
Activity：（Using the smiling face）Review the sentences and words then divide the students for six groups.（ red , yellow, blue, green, orange, purple.）
（Using a red smiling face）
T: Hello, boys and girls. What color is this? S: It’s red.
T: How to spell it? S: r-e-d.
T: Very good. You’re red team. Hello, red team!
S: Hi, Miss Wu! …
【设计意图】利用red, yellow, blue, green, purple和 orange六种颜色把学生分成六个代表不同颜色的小组，小组比赛，创设竞争情景，激发学生的热情，引发学习的兴趣。
Step 2 Practice
Practice1 Listen and number.
Students listen and write the number according to the order in which they hear them. Then check the answers.
【设计意图】温故知新，引导学生回忆第一课时的知识，简单又轻松。
Step 3 Practice 2 Listen and answer.
T：Practice in pairs, ask and answer the question.
A: What color is this? B: It’s…
【设计意图】Pair work能增强有效的教学参与，给予学生更多相互交流的机会。
Step 4 Presentation
1.Sing a song：Red, yellow, blue and green.
T: Boys and girls, Open your big big eyes, look and listen.