One of Scotland's most active centenarians ( 百岁的人), Lady Morton, drove for nearly 80 years. She loved driving and spent the war years as an ambulance driver for Bangour Hospital. Aged 100 she was still driving around Edinburgh, up to Perthshire and elsewhere — the oldest among all the drivers in Scotland. But she had her first ever accident several days after her 100th birthday — she hit a traffic island (a raised area in the middle of a road where people can wait until it is safe to cross) when she took her new car for a drive in Edinburgh.

    Lady Morton, who celebrated her 100^th birthday in July, was given a car as a present. She talked about the accident happened that night. “I wasn't going fast, but I hit a traffic island. I couldn't see it, because it had no light, which I think was unbelievable and unreasonable. But I am all right and luckily my car wasn't badly damaged.

    Although Lady Morton had the accident, she didn't plan to stop driving.“Some people are just born to drive, and I think I am one of them. I've been a good driver since the first time I got in a car, she said. “I am musical, so I listen to sound of the car to know when to change gear (档位).

    Lady Morton bought her first car in 1927. The main change she had noticed since then is the traffic. “It's appalling. However, I don't mind it, because I am experienced, but I feel very sorry for beginners,” she said.

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      有一个年轻的船夫划着小船给另一个村子的居民运送农产品。天气酷热，船夫汗流浃背，苦不堪言。他心急火燎地划着小船，希望赶紧完成运送任务，以便在天黑之前返回家中。突然，船夫发现有一只小船向自己迎面快速驶来。眼看两只船就要撞上了，但那只船并没有避让的意思。“让开，再不让开你就要撞上我了！” 船夫大声向对面的船吼叫道。但是，他的吼叫完全没用，尽管他手忙脚乱地企图让开，但为时已晚，那只船还是重重地撞上了他。船夫被激怒了，他厉声斥责道：“你会不会驾船，这么宽的河面，你竟然撞到了我的船！” 当船夫怒目审视对方小船时，他吃惊地发现，小船上空无一人，听他厉声斥骂的只是一只顺河漂流的空船。

对于36÷ $\frac{3}{4}$ 所表示的意义是____