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今天，天气十分炎热。上课时，郭老师带来了一瓶可乐要和我们分享我们高兴极了. Today, it's very hot. In class, Mr. Guo brought a bottle of coke to share with us 郭老师看了看可乐瓶，发现可乐太少了，不够我们喝，于是我们一起想办法，想了很久都没想出来。忽然，郭老师不小心摇了一下可乐，冒出了气泡而且涨了一点。我们惊奇地问到：“这是为什么呢？”“对呀！这是怎么回事呢？”郭老师也忙问到。有的同学说：“是泡泡。”有的说：“不对。是可乐。”“……”同学们七最八舌的议论着。这时，郭老师说话了：“这是工人叔叔再制造可乐时往里面强压进了二氧化碳，一摇，二氧化碳就和一些可乐就变成气泡了。我使劲的摇，可乐瓶里气泡就会越来越多，会充满整个瓶子。”听到这儿，同学们都恍然大悟的笑了。这时郭老师边打开瓶盖边说：“现在我们开始喝可乐了！”话刚说完，可乐“丝、丝、丝”的一声“冲”了出来打湿了郭老师的衣服和手。同学们都惊叫了起来：“哇……怎么可乐会向外冲呢？”“这还是二氧化碳……等会你们喝下去可乐时呼出来的也是二氧化碳。”郭老师慢声慢气的向我们解释着。 Mr. Guo looked at the coke bottle and found that there was too little coke for us to drink. So we worked together and didn't come up with a solution for a long time. All of a sudden, Miss Guo accidentally shakes the coke and bubbles up a little. "Why?" we asked in surprise "Yes! What's going on? " Teacher Guo asked. Some students said, "it's bubbles." Some said, "No. It's coke. " "..." The students talked about it seven times. At this time, Mr. Guo said: "this is the worker's uncle forced carbon dioxide into the coke when he made it again. When he shook it, the carbon dioxide and some coke would become bubbles. I shake it hard, there will be more and more bubbles in the coke bottle, and it will fill the whole bottle. " Hearing this, the students all laughed suddenly. At this time, Mr. Guo opened the bottle cap and said, "now we start drinking coke!" Just finished, coke "silk, silk, silk" a "rush" out to wet Miss Guo's clothes and hands. The students all exclaimed: "wow How can coke rush out? " "It's still carbon dioxide When you drink coke later, you will also breathe out carbon dioxide. " Teacher Guo explained to us in a slow voice. | 
