One day an American called Simon went to London to visit his friend, Rick. Rick told him that his flat was on the first floor. When he arrived, Simon went straight to the first floor of the building. But he was told that there was no Rick on that floor. Do you know why?

    In fact, the British call the first floor of a building the ground floor. The floor above the ground floor is the first floor, which Americans would call the second floor.

The story shows that there are a few culture differences between Britain and America, though the British and Americans both speak English. The British usually hide their feelings. They seldom start a conversation with strangers. For example, on the train the British often spend their time reading newspapers or books. But Americans are quite different. They're more active and easier to talk with.

    The British and Americans may use different terms for many things. The British usually use football, eraser and mail while Americans prefer to use soccer, rubber and post.

You are running in the playground. But then suddenly, you fall and hurt yourself. "Ow!" you cry. This sound is very familiar to us all. Crying out when we get hurt is a natural action. But have you thought about why we shout it out? And do people from different languages make the similar sound? 

Scientists now believe they've found out the reason: shouting the word "ow" partly stops pain messages from traveling to the brain. So by shouting it out, people can feel less pain.

The scientists tested how long volunteers could hold their hands in very cold water. In the first group, they were allowed to shout "ow" when they felt pain. In another group they had to stay silent. The results showed that volunteers were able to keep their hands in the cold water for longer when they were allowed to shout out. Shouting out "ow" helps humans feel less pain and add the time.

What's more, scientists have also found that different languages have similar expressions of pain. While cries of "ow" or "ouch" are heard in English, South Africans yell "eina".

These languages have one thing in common: when people shout them, the mouth simply opens, the tongue (舌头)lies flat and the lips (嘴唇) unrounded. It is a simple sound that requires little control, so it's easy to make a big sound. For the reasons, these sounds are useful to shout if we feel pain.

要求：(1)短文须包含图中所有信息, 可适当发挥；(2)文中不得出现个人真实的姓名和校名；(3)词数80词左右, 标题和开头已给出, 不计入总词数。

Reading Outside Class

As we all know, reading has a lot of advantages. 

……

Do you know which social app is popular with Chinese young people now? "Short videos" are certainly the most popular. A large number of young people use Tik Tok (抖音) and Kuaishou. They think it is fun to share their lives by short videos, while others have other purposes as well.

A t2-year-old user named Elsa has about 2. 7 million fans on Tik Tok. The girl has shared her dancing studies on Tik Tok since last July. One of the videos won her about one million tans. "I feel really glad to share happiness with people by short videos." said Elsa.

To some other young people, they use short videos to have a quick look at the hot programs. "Because I don't like to spend many hours watching a whole program, I hate waiting for a program to end, and I prefer to watch short videos of wonderful parts of hot programs," said Wang Zhihao.

However, some young people feel bored with short videos. "Killing time is the main reason for me to watch short videos, and many short videos are almost the same, so I think they are not so useful or interesting. What's more, I really don't like the videos about strange and dangerous things," said Wen Nan, another college student.

Recently, something else has appeared. Some videos are telling people what commodities are worth buying. Some short videos even sell bad commodities, and it is hard for customers to get their money back. So we should think twice before we want to buy the commodities by short videos. 

要求：1. 文章内容涵盖所有要点，可以适当发挥；

2. 文中不得出现学校名称和真实姓名；

3. 词数70词左右，开头已给出，不计入词数。

How do people from all over the world spend their free time? Let's have a look.