Coffee has been a part of people’s lives for thousands of years, and today it is still one of the favorite drinks in the world. Many people in the world begin their busy day by drinking a cup of or several cups of coffee. They have always said that a cup of coffee in the morning helps them begin their day in the right way. So they say a cup of coffee is necessary for them in the morning.
Do you know what in the coffee makes our bodies and brains(大脑) active? It is caffeine(咖啡因). Caffeine may increase a person’s mental and physical abilities(精力和体能). For example, two cups of coffee will make you breathe faster and augmentbody heat. All this makes you heart beat faster, and doctors warn that this may be a little dangerous.
Caffeine is found in tea, coffee, chocolate and some other foods. A little caffeine is probably not harmful. But much caffeine can make people nervous and sleepless.
【小题1】A good title for this passage is              .

An American writer, Mr Green once(曾经) said, “Everybody talks about the weather, but nobody does anything about it.” It is true that everybody talks about the weather. Many people begin their talks by saying, “Isn’t it a nice day?” “Do you think it will rain?” “I think it’s going to snow.”
Many people think they can tell what the weather is going to be like. But sometimes they don’t agree with each other. One man may say, “Do you see how cloudy it is in the east? It’s going to rain tomorrow.” Another man will say, “No, it’s going to be fine tomorrow.”
People often look for the weather they want. When a farmer needs water, he looks for something to tell him it’s going to rain, and he doesn’t look for anything else. When friends have a picnic, they hope the weather is going to be fine and they can sit eating their lunch under the blue sky.
Almost everyone listens to what the weatherman says. But he doesn’t always tell us what we want, and sometimes he makes a mistake. Still, he is right most of the time.
【小题1】People often begin their talk by ______.

– What would you like to drink?  
-- _______, please.

Tea bag drinking is most Westerners' favorite way of drinking tea. Do you know how it came about?
The tea bag was invented in 1908 by Thomas Sullivan, an American tea seller. He was sending out free tea in silk bags for people to try. People put the bags together with the tea leaves into the cup and added(增加) hot water. The tea tasted good, and people thought it was easy to clean the cup. They were not happy when Sullivan started sending them loose (散的) tea again.
Sullivan realized that he had a hot new thing in his hands, and he built a machine to pack the bags. As tea bags became popular, they were changed from silk to gauze (薄纱) and later paper. In 1952, Lipton Tea made the tea bag even more popular with its invention of the four-sided tea bag. Tea bags were soon a hit in the UK, and today 85%of the tea in the UK is packed in paper bags.
However, many people still prefer loose-leaf tea.  This is because some tea companies put not very good tea in their tea bags. But for most drinkers, tea bags are still the easy and tasly way to go.
【小题1】Who invented the tea bag?