Reading can be a social activity. Think of the people who belong to book groups. They choose books to read and then meet to discuss them. Now the website BookCrossing.com turns the page on the traditional idea of a book group.

    Members go on the site and register the books they own and would like to share. BookCrossing provides an identification number to stick inside the book. Then the person leaves it in a public place, hoping that the book will have an adventure, traveling far and wide with each new reader who finds it.

    Bruce Pederson, the managing director of BookCrossing, says, “The two things that change your life are the people you meet and books you read. BookCrossing combines both.”

    Members leave books on park benches and buses, in train stations and coffee shops. Whoever finds their book will go to the site and record where they found it.

    People who find a book can also leave a journal entry describing what they thought of it. E-mails are then sent to the BookCrossers to keep them updated about where their books have been found. Bruce Peterson says the idea is for people not to be selfish by keeping a book to gather dust on a shelf at home.

    BookCrossing is part of a trend among people who want to get back to the “real” and not the virtual(虚拟). The site now has more than one million members in more than one hundred thirty-five countries.

    In the near future, we may be using our eyes to operate our smart-phones and tablets, even when it comes to playing popular games like Fruit Ninja.

    The Gaze Group has been developing eye-controlled computer technology for nearly 20years. But those devices have been firstly designed to help those with disabilities, and are very expensive.

    “After a while, we figured out that probably the best way is to go for a mass-market way,”says Gaze's Sune Alstrup Johansen. “Where everybody would have this available.”

    Johansen and some of his colleagues have formed a new company, the Eye Tribe, which is hoping to develop the technology on a mass commercial level.

    The technology works when combined with the computing device toward the user's face. After making sure of the user's eye movements, the technology is then able to easily find where a person's eyes are moving, and then allow the eyes to control a cursor (光标)

    “Our software can then determine the location of the eyes and know where you're looking on the screen to make sure what you're looking at, ”reads an explanation on the Eye Tribe site.

    There has been a gradual change toward hands-free technology in recent years, particularly in the gaming world. Recently Xbox released the Kinect device, which lets users control their Xbox and play certain games using only their hands, legs and voices. But still, most of these devices have been more of a gimmick than a practical way to use one's hands to control a mobile device. Johansen said a replaceable filter (滤光器) would be a cheap, convenient way for most consumers.

    And even as companies like The Eye Tribe work to create such a product for the average user, making the eye-controlled technology more accessible and less expensive will have similar benefits for physically disabled users.

    For more articles on modem science, please CLICK here.

    During my elementary school years, I used to compare my mom with my best friend Tiffany's mom.

    Tiffany's mom always gave her lots of money to buy the most fashionable clothes and favorite food. Her mom allowed her to do anything she liked. I really admired Tiffany. My mom didn't give me much pocket money and she always told me that I should behave myself. I was annoyed with her.

Whenever I didn't get what I wanted, I would complain to my mom, Tiffany's mom would give her that! I wish she were my mom. Every time, my mom would calmly say "Poor Tiffany". I couldn't understand her. "She shouldn't be feeling sorry for Tiffany!" I thought. "She should be feeling sorry for me."

One day, I couldn't help saying to Mom, "Poor Tiffany? Lucky Tiffany! She gets everything she wants! Why do you feel sorry for her?" I burst into tears.

My mom sat down next to me and said softly. "Yes, I do feel sorry for her. I have been teaching you a lesson that she will never be taught."

I looked up at her. "What are you talking about?"

Mom said with care, "One day she will really want something. Maybe she'll find out that she can't have it. Her mother won't always be around to give her money, and what's more, money can't buy everything."

She continued, "I have taught you valuable lessons by not giving you everything you want. You'll know how to look for bargains and save money, but she won't. You'll understand that you need to work hard to get the things that you want but she won't. When Tiffany is a grown woman, she'll wake up one day and she will be wishing that she had a mom like the one you've got. Life lessons are more important than modern clothes and delicious food."

    It took some time, but I eventually understood my mom's words. Now I am a happy and successful woman.

    One day an old woman was traveling alone in the mountains. Suddenly she saw something shining in the stream. When she came close, she found it was a precious （珍贵的） stone. She put the stone into her bag and went on with her trip.

    The next day the old woman met a young man, who was also a traveler in the mountains. The young man looked very hungry, so the old woman opened her bag to share her food. The hungry traveler saw the precious stone and asked carefully, “The stone is beautiful. Would you like to give it to me?”

    “Sure. Why not?” the woman said, and handed the stone to him.

    The young man left happily with the stone. He knew it was worth enough to give him security for a lifetime. But a few days later he came back to return the stone to the woman.

    “I've been thinking,” he said. “I know how valuable the stone is, but I give it back and hope that you can give me something even more precious. Give me what you have within your bag.”

    The woman opened her bag. It was almost empty. She looked at the young man and smiled, “I have nothing special in my bag, but I do have something precious — the joy of giving!”

    The young man felt ashamed and left silently.

    Let's look at the movies we can't wait to watch in 2019:

    Dumbo (March 29)

    Dumbo is a 1941 American film produced by Walt Disney Productions. The main character is an elephant who is nicknamed "Dumbo". Dumbo is always laughed at for his big ears, and he is rejected by the other elephants. With no parent to care for him, he is alone. But in fact, he is capable of flying by using his ears as wings. A live-action adaptation of the film directed by Tim Burton is scheduled to be released on March 29, 2019.

    Shazam! (April 5)

    Shazam! is an upcoming American superhero film based on the DC Comics character of the same name. Directed by David F. Sandberg, the film is set to star Asher Angel as Billy Batson, a teenage boy who can transform via the magic word "Shazam" into an adult superhero, played by Zachary Levi. It will be the first film version of the character since the 1941 series Adventures of Captain Marvel (the character's original name).

    Aladdin (May 24)

    Aladdin is a fictional character and the role of the film Aladdin (1992) based on Aladdin, a folk tale of Middle Eastern origin. He is voiced by Scott Weinger, while his singing voice is provided by Brad Kane. Aladdin never received a formal education, and has only learned by living on the streets of Agrabah. He has to steal food in the local market in order to survive. Mena Massoud is set to play a live-action version of the character in a live action adaptation of the 1992 film.

    Godzilla, King of the Monsters (May 31)

    Godzilla, King of the Monsters is a 1956 Japanese-American science fiction film, co-directed by Terry O. Morse and Ishiro Honda. It is a heavily re-edited American adaptation. For this new version of Godzilla, some of the original Japanese dialogue was translated into English, and some of the political, social and anti-nuclear themes were removed completely.

There are various ways in which to read body language so that you can understand how someone is feeling.

Reading emotional clues (线索)is one of them.

Crying is considered to be caused by an explosion of emotion in most cultures.Often times crying is considered a sign of sadness,but crying can also be an expression of happiness.Crying can also come about through laughter and humor.Thus,when judging crying,you'll need to look for other signs to determine the meaning of the crying.Crying can also be forced in order to gain sympathy or to cheat others.This practice is known as "crocodile tears",an expression that draws on the wrong idea that crocodiles"cry" when catching prey(猎物).

Signs of threat include v-shaped eye brows, wide eyes, and an open or down-turned mouth.In a similar way, arm tightly crossed over the other is a common sign that the person is angry and is closing himself off to you.

When people show anxiety, they display increased facial movements, and their mouth made into a thin line.

Individuals who are anxious may also play with their hands, unable keep them in one spot.Anxiety can also or have nervous legs.It can be conveyed when people seemingly unconsciously(无意识地)tap their feet or have nervous legs.

Embarrassment can be expressed by turning the eyes or shifting them away.If someone looks down at the floor a lot,they are probably shy,afraid,or embarrassed.People also tend to look down when they are upset,or trying to hide something emotional.People are often thinking and feeling unpleasant emotions when they are in the process of staring at the ground.

There are also some signs of pride.People show pride by displaying a small smile,holding their head backward,and putting their hands on their hips.