The word“day” has two meanings. When we talk about the number of days in a year,  we are using “day” to mean 24 hours. But when we talk about day and night,  we are using“day” to mean the time between sunrise and sunset. Since the earth looks like a ball,  the sun can shine on only half of it at a time. Always one half of the earth is having day and the other half night. A place is moved from day into night and from night into day over and over by the spinning（旋转）of the earth. At the equator（赤道）day and night are sometimes the same length（长度）. They are each twelve hours long. The sun rises at 6 o'clock in the morning and sets at 6 o'clock in the evening. For six months the North Pole is tilted（倾斜）toward the sun. In those months the Northern Hemisphere（半球）gets more hours of sunlight than the Southern Hemisphere. Days are longer than nights. South of the equator nights are longer than days. For the other six months the North Pole is tilted away from the sun. Then the Southern Hemisphere gets more sunlight. Days are longer than nights. North of the equator nights are longer than days. Winter is the season of long nights. Summer is the season of long days.

请阅读下面短文，根据短文内容从每小题所给的A、B、C、D四个选项中选出最佳选项， 并在答题卡上将该项涂黑。

In many countries, tattoos are in fashion (时尚). On TV you can often see a famous actor or musician with a tattoo on his arm or foot. Many sports players have them, too. In the US, tattoos are very popular. Forty percent of Americans aged between 26 and 40 have a tattoo, and 60 percent of customers in US tattoo parlors are women. These people are often professional people like doctor, teachers and lawyers.

However, tattoos are not modern. In fact, they are very old in human history. For example, archaeologists (考古学家) found a human in ice from 5,000 years ago. He had 57 tattoos on his back, ankles, legs, knees and feet. Tattoos were used for many different reasons. In ancient Egypt, people got tattoos because they were “beautiful”. But in ancient Rome, tattoos were negative (负面的) and put on criminals and prisoners. In India, tattoos were religious (宗教的).

In the 16^th and 17^th century, European sailors (船员) arrived on the islands of Polynesia. They saw tattoos for the first time. The people on the islands had tattoos on their shoulders, chests, backs and legs. Often the tattoos were of animals or natural features like a river or a mountain. The European sailors liked them and made their own tattoos, so the idea traveled to Europe. Tattoos in Polynesia are still important today. They show information about a person's history, their island or their job.

So is there a connection (联系) between traditional tattoos and fashionable tattoos? And can you call tattoos a fashion? Chris Rainier is an expert in tattoos and his book Ancient Marks has photos of tattoos from all over the world. He thinks people in modern societies often have tattoos because they are a connection to the traditional world. But tattoos aren't a fashion like clothes or a haircut because you can't put them on and take them off again like a jacket or a hat. They are permanent (永久的) and for life.

    The best way of learning a language is using it. The best way of learning English is talking in English as much as possible. Sometimes you'll get your words mixed up and people won't understand you. Sometimes people will say things too quickly and you couldn't understand them. But if you sense of humor, you can always have a good laugh at the mistakes. It's better for people to laugh at your mistakes than to be angry with you, because they don't understand what you are saying. The most important thing for learning English is:“ Don't be afraid of making mistakes because everyone makes mistakes.”

    Long long ago，the youngest daughter of Emperor Yan went boating on the Eastern Sea. At first she had a good time，but later on she was too tired to swim when a strong wind rose on the sea and turned her boat upside down. She was thus drowned, but her spirit turned into a beautiful bird crying sadly in the sound “Jingwei, Jingwei”.

    Because she wanted to see her beloved father again and hated the sea so much，she put some stones into the sea day after day, without a rest, in order to change the sea into the land. From this story comes the saying “The bird Jingwei trying to fill the sea”. The story was a little sad. But it tells us something important. When we do anything, we have to work hard. Learning English is difficult but if you study hard, you can learn it well.