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今天作文课上,郭老师故意装出很神秘的样子,搞得我们十分紧张。他问我们:“你们知道心脏在哪里,它有什么作用呢?”我们都用疑惑的眼神看着老师说:“我们什么也不知道,请老师告诉我们吧。”郭老师微笑着说:“心脏呢,在胸部偏左上方,它应该是和拳头般大小,像个歪鸭梨。正常情况下,每分钟跳动75下左右,主要是负责人体内的血液循环的。”听了老师的解释,我们点点头,似乎明白
Today’s composition class, Guo deliberately put on a very mysterious look, and made us very nervous. He asked us: “Do you know where the heart is and what effect does it have?” We all looked at the teacher with a puzzled look and said: “We do not know anything. Please let the teacher tell us.” It said: “The heart, in the left side of the chest, it should be the size of the fist, like a crooked pear.At normal circumstances, about 75 beats per minute or so, is mainly responsible for the body’s blood circulation. ”After listening to the teacher’s explanation, we nodded and seemed to understand