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英语翻译When coffee was first introduced in Europe in the 1600s,

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英语翻译
When coffee was first introduced in Europe in the 1600s,there was a great deal of controversy about it.Many doctors said that coffee was a strong poison and should be forbidden.Others,however,insisted it was good to drink coffee.Then,“coffee houses” sprang up everywhere.Today,coffee has become a global drink and it is consumed by one third of the world’s population.
Tests show that when coffee is given in large doses to animals,it can actually act as a poison.Coffee can also produce negative or even poisonous effects on small children.But for adults who drink it moderately,it is by no means a poison.
Coffee contains caffeine.Most people believed that it is the caffeine that produces all the effects that coffee has on the body.Of course,the other elements in coffee have a role to play.
Here are some of the things that happen when people drink coffee.The smell of coffee itself produces stimulating effects in various parts of the body.The blood vessels(血管) in the brain open wider so that the flow is improved,and this removes some of the poisonous substances from the brain.Coffee increases the pulse rate(脉搏),which means it stimulates the heart,and the muscles can thus work harder.Coffee makes the stomach work more actively,which is worthwhile for healthy people,especially when drunk after a heavy meal.
Coffee actually produces different effects on the body at different times of the day!The morning coffee,for instance,helps the body get rid of waste products produced during the night.Coffee after lunch helps digestion.Afternoon coffee acts on the muscles and helps us feel less tired.And coffee taken in the evening seems to stimulate the mind and the imagination!
However,there always two sides to everything.Caffeine is stimulating,so a lot of people avoid drinking coffee at night,which is the time when people want to go to bed instead of feeling stimulated.Furthermore,some people get hooked on coffee because of the caffeine,and that has always been considered negative.
首先介绍了咖啡时是欧洲在1600年代的时候,有一个很大的争论.许多医生说咖啡是一种极强的毒素,应该是被禁止的.然而,另一些人坚持认为是好的喝咖啡.那么,“咖啡屋”跳起来无处不在.今天,咖啡已成为一个全球性的饮料,是被一个第三的世界人口.  试验结果表明,当咖啡是给予大剂量给药的动物,但实际上它会作为一种毒素.咖啡还能产生负面影响甚至有毒小的孩子.但对于成年人,喝适度绝不是一种毒素.  咖啡中含有的咖啡因.大多数人相信它是咖啡因,生产各种效果的咖啡对身体.当然,其他因素在咖啡发挥了很大的作用.  这里的一些所发生的事情,当人们喝咖啡.的气味