小阳在利用吸管喝饮料时认为“饮料是靠嘴的吸力进入口中的，而不是靠大气压进入口中的”，而小明认为他的说法是错误的，为此他准备了如下一些器材：一个装满水（可以饮用）的玻璃瓶，一个可以塞紧瓶口的塞子，塞子上开有两个孔，其中一个孔中插有一支吸管并与塞子压紧．请你帮助小明设计一个实验证明小阳的说法是错误的．写出实验步骤并加以说明．

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    I am seven. I go to school every day. Classes start at eight o'clock. In the morning. I have Chinese, Art and Maths. I have English and P.E. in the afternoon. I get home at half past four. I watch TV at home. I have a good friend, Xiaotian. He sleeps at school. He goes to bed at nine. I go to bed at half past nine.