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Most people will tell you that they can’...

Most people will tell you that they can’t work without a cup of coffee in the morning. Research has shown that a cup of coffee does give a person slight excitement.

Legend said that Kaldi, an Ethiopian, found his goats happier while enjoying coffee plants. Curiously, he tasted the leaves and began to dance around. Whether the Legend was true or not, the discovery of coffee dates back to 800A. D. Soon Arabians were roasting coffee beans. Muslims were drinking coffee to stay awake by 1000 A.D. A merchant from Venice introduced coffee to Europe in 1615. By 1696, the Dutch started growing the coffee bush in Java. By 1723, coffee plants were introduced to the Americans. Today, coffee is the most popular drink in the world.

Caffeine is the major chemical in coffee. It blocks(阻止) adenosine, a chemical that makes you sleepy. People can get a pick-me-up or stimulation(刺激) from the drink. The stimulation does not last long. Caffeine poisoning can occur if more than 400 milligrams of caffeine is drunk in a short period, which is about four to five cups of coffee. Caffeine will also cause sleep difficulty, so it should not be drunk before bed.

Caffeine has many advantages. Studies have shown that it helps improve some skills in elderly women. Women who drank three cups of coffee daily scored higher on memory tests than women who drank one cup of coffee. According to newser.com, one cup of coffee a day protects the brain. Coffee also can help people keep away from many diseases according to webmd.com.

Large amounts of coffee can cause nervousness, worries and a fast heartbeat. However, if you mix coffee with milk, it’s fine. Caffeine can be addictive like any drug. The more you drink, the more you depend on it. For some people, just one cup of coffee a day is OK.

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1.Who found the most popular drink in the world according to the Legend?

A. An Ethiopian.B. Arabians.

C. Muslims.D. The Dutch.

2.When was the coffee introduced to Europe?

A. In the 1710s.B. In the 1610s.

C. In the 1690s.D. In the 1720s.

3.From the third paragraph we can learn ___________.

A. caffeine can make people sleepy

B. adenosine can make people awake

C. about four to five cups of coffee will cause sleep difficulty

D. coffee is considered harmful if it is taken in a large amount

4.The fourth paragraph mainly tells us ___________.

A. the importance of coffeeB. the good effects of coffee

C. the bad effects of coffeeD. the development of coffee

5. If you like drinking coffee, you had better_______.

A. drink it before bedB. give up this bad habit

C. drink one cup of coffee a dayD. drink more coffee than milk

 

1.A 2.B 3.D 4.B 5.C 【解析】 试题分析:短文从咖啡的发现开始描述,又介绍了咖啡的发展历史。接下来详细的说明了咖啡过量会给人们带来哪些危害,又从咖啡的适量饮用能提高人类的大脑记忆。最后作者也提出了一点建议:对一些人来说,每天一杯咖啡就可以了。 1. 2. 3.少量的情况会产中毒的现象,咖啡还会造成睡眠困难。结合选项第四项描述内容符合段意。故选D 4.结合本段的描述,主要介绍了咖啡好的效果。故选B 5. 考点:科普知识类短文阅读。
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Birthdays are celebrated all over the world. Some ways to celebrate birthdays are rather similar from county to country---candles, cakes and birthday wishes. But there are also different ways to celebrate birthdays. Here are a few:

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