My First Chemistry Teacher
I will never forget my first chemistry teacher. He was a little man with thick glasses, but he had a strange way of making his classes lively and interesting. And his lessons were not easily forgotten.
I still remember one of my lessons from this teacher. After the students were all in the lab, the teacher brought out three bott[es. One was filled with petrol, one with castor oil and one with vinegar. "Now watch carefully," said the teacher.
He then filled a cup with some of the petrol, some of the castor oil and some of the vinegar. As the students watched him quiet[y, he mixed the three together. After that, he held up one of his fingers and showed it to the class. He then dipped it into the cup. After a few seconds he took his finger out. "Now watch," he said. "Remember, you must do every thing as I do."
He put a finger in his mouth, tasted it and smiled, looking rather pleased. Then he handed the cup around the class of students. Each student dipped a finger into the mixture and sucked it. Instead of smiling, each of them made a face. The mixture tasted terrible.
When the cup was at last returned to the teacher, he said sadly, "I' m sorry, none of you watched carefully enough. Yes, I sucked a finger, but the finger I put into my muth was not the one I had dipped into the cup."
It was my first important lesson as a student of chemistry and I never forgot it.
[点评]
这个故事，也许很多人都看过。作者生动地记叙了他的第一位化学老师是如何给他上了一堂难忘的化学课，使他一生受益匪浅，读者可模仿写一篇使自己难以忘怀的人和事的文章。
[参考译文]
我的第一位化学老师
我永远也不会忘记我第一位化学老师。他戴着一副深度眼境，个头不高。他有着奇妙的教学方法，能使他的课上得生动有趣。因此，他的课是不容易忘记的。
我现在还仍然记得他给我们上的一节课。在学生全都进入化学实验室后，老师拿出三个瓶子。一个瓶子装满汽油，一个装满篦麻油，还有一个装着醋。老师说：“现在请仔细观察。”
于是他拿山一个杯子，装上一点汽油，一点篦麻油和一点醋。当学生们静静地瞅着他时，他把这二种液体搅和在一起。随后他举起一个手指给学生看，接着把手指伸到杯子里蘸了蘸。几秒钟后他把手指拿出来，说：“现在大家瞧着。记住，你们都要照我这样做。”
他把一个手指放进嘴里，尝了尝，微笑着，显出一副得得意的样子。然后把杯子递给学生，在全班传了一圈，每个学生都把一个手指伸入混合液中蘸了蘸，然后放进嘴里，吸吮了一下。他们没有笑容，而是每个人都做了个苦脸。这混合液太难吃了。
当这个杯子最后传回老师手中时，他不高兴地说：“很遗憾，你们没有一个人仔细观察我的动作。不错，我是吸吮了一个手指，但是放进嘴里的那个手指并不是我伸进杯子里的那个。”
这就是我的一节重要的化学课，而我一直没有忘记这堂课。
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