活动1【导入】唱歌热身并导入
热身:A song—Walking边唱边做动作，然后坐下。引入：T:This is my new camera and I took some vidieos.Do you want to see it?
S:Yes.
课件展示一段校园风貌的视频。
【讲授】视频资料展示新在知识点
展示校园视频后
T:Do you know where it is?
S:It’s our school.
T:Can you tell me what you can see in our school?
S:I can see green trees/beautiful flowers/tall buildings…
T:Do you like our school?
S:Yes.
T:But I have other vidieos，let’s take a look.
课件展示一段校园里不够干净的角落。
T:Is our school cleaning now?What should we do?
引出课题Keeping the school clean
T:Let’s go around the school and think how to keep the school clean. There are many litter bins in our school.
用肢体语言和实物来解释词义并教读。
用图片引导学生练说We shouldn’t litter.
We should throw litter into litter bins.
鼓励学生再提建议：We should sweep the floor.
We should keep the school clean.
We shouldn’t walk on the grasses.
T:Well， now you know， to keep our school clean， something we should do and something we shouldn’t do. Let’s see what about the canteen.
出示餐厅的图片，创设情景。
Here is a vidieo about the canteen. Watch carefully and think it over what we should do to keep the canteen clean.
课件放出饭堂的视频后鼓励学生多说句子，并在课件出现以下句子：
We should keep the desk clean.
We should return our plates after eating.
T:Now， we can keep the school and canteen clean. Let’s go into the classroom. What should we do?
S:We should keep the classroom clean.
T:Good idear！ But how? I’ve given you some notes， please discuss in your group and choose one of them， then show us.
小组讨论并展示。【活动】拓展
拓展：屏幕中出现一个地球的图片
T:Now， we know we should keep our school clean. What about the earth?
屏幕中出现几幅地球被污染的图片，引导学生说出句子：
We should keep the earth clean.
八、T：Let’s draw some beautiful pictures on the notes. Make some posters to remind the stdents to keep our school clean.
学生完成后个人展示。
