Body language is one of the most powerful means of communication, often even more powerful than spoken language. It is said that our body movements communicate about 50 percent of what we really mean while words only express 7 percent. So, while your mouth is closed, your body is just saying.

    Arms. How you hold your arms shows how open and receptive you are to people you meet. If you keep your arms to the sides of your body or behind your back, this suggests you are not afraid of taking on whatever comes your way. Outgoing people generally use their arms with big movements, while quieter people keep them close to their bodies. If someone upsets you, just cross your arms to show you're unhappy!

    Head. When you want to appear confident, keep your head level. If you are a monitor in class, you can also take on this position when you want your words to be taken seriously. However, to be friendly in listening or speaking, you must move your head a little.

    Legs. Your legs tend to move around a lot more than normal when you are nervous or telling lies. If you are at interviews, try to keep them still!

    Posture (姿势). A good posture makes you feel better about yourself. If you are feeling down, you normally don't sit straight, with your shoulders inwards. This makes breathing more difficult, which can make you feel nervous or uncomfortable.

    Mouth. When you are thinking, you often purse(噘嘴) your lips. You might also use this position to hold back an angry comment you don't wish to show. However, it will probably still be noticed, and people will know you're not pleased.

    Face. When you lie, you might put on a false face. But that expression would crack briefly, allowing displays of true emotions such as happiness, sadness, disgust (厌恶) and fear to come through.

    After returning from her round trip, the angry woman stood outside the ticket office of the station. “The railway owes me 12 pounds，” she said to Harry Jenks, the young man working at the office. “You sold me a ticket for May 22nd, but there was no ship from Jersey that night. So my daughter and I had to stay in a hotel. It cost me 12 pounds.”

    Harry was worried. He remembered selling the woman a return ticket. “Come into the office, Madam，” he said politely. “I'll just check the Jersey timetable for May 22nd.”

    The woman and her little girl followed him inside. She was quite right, as Harry soon discovered. There was no sailing on May 22nd. How could he have made such a careless mistake? He shouldn't have sold her a ticket for that day. Wondering what to do, he smiled at the child. “You look sunburnt.” he said to her. “Did you have a nice holiday in Jersey？”

    “Yes,” she answered, shyly. “The beach was lovely. And I can swim too!”

    “That's fine,” said Harry. “My little girl can't swim a bit yet. Of course，she's only three ...”

    “I'm four，” the child said proudly. “I'll be four and a half.”

    Harry turned to the mother. “I remember your ticket, Madam.” he said. “But you didn't get one for your daughter, did you？”

    “Er, well ...” the woman looked at the child. “I mean .., she hasn't started school yet. She's only four.”

    “A four­-year­-old child must have a ticket, Madam. A child's return ticket from Jersey costs .., let me see ... 13.50 pounds. The law is the law, but since the mistake is mine ...”

    The woman stood up, took the child's hand and left the office.

    A new web standard is expected to kill passwords, meaning users will no longer have to remember difficult logins(登录) for each and every website or service they use.

    The Web Authentication (WebAuthn网络认证) standard is designed to replace the password with tools that users already own, such as a security key, a smart phone, a fingerprint scanner or webcam. Instead of having to remember long characters, users can authenticate their login with their body or something they have, communicating directly with the website through Bluetooth, USB or NFC.

    "WebAuthn will change the way that people access the Web," said Jeff Jaffe, CEO of the World Wide Web Consortium (W3C), the body that controls web standards. One example of how WebAuthn will work is that when a user visits a site, they put in a user name and then get a message on their smart phone. Tapping on the message on their phone then logs them into the website without the need for a password.

    WebAuthn promises to protect users against phishing attacks(钓鱼攻击) and the use of stolen information as there will be nothing to steal, the authentication sign is produced and used once by their special tool each time the user enters.

    "After years of increasingly serious data and password being stolen, now it is the time for service providers to end their dependency on easily-attacked passwords and use phishing-resistant FIDO Authentication(快速身份认证联盟) for all websites and apps," said Brett McDowell, CEO of the FIDO Alliance, one of the bodies pushing the new standard.

    WebAuthn should also help people use special login details for each and every service they use, instead of using the same login and password for every site, which many people still do, leaving them further attacked if one site is hacked(黑客攻击).

    The W3C has moved WebAuthn to what's called the "candidate recommendation" stage – the last-but-one step before it becomes an approved web standard – inviting sites and services to begin using it. The web standards body announced that Google, Microsoft and Mozilla had been devoted to supporting WebAuthn, meaning that all major web explorers except Apple's Safari will use the new standard.

    "While there are many web security problems and we can't fix them all, relying on passwords is one of the weakest links. With WebAuthn's solutions we are removing this weak link," said Jaffe.

    Several sites and services already use similar methods to enter, including Google and Facebook, which can both be entered using a USB security key. But a single cross-platform, cross-service standard approved by the W3C will mean that many more sites and services will be able to kill the password as the login method.

    WebAuthn is the top of many years of work and the change will not happen overnight. But as it increasingly seems unavoidably that our email or other online services will get hacked into, removing the password is an important step in improving online security and making using sites and services easier.

    Some places in the world have strange laws. It's important for you to know about them before going there.

    Whoever likes to chew gum(口香糖) may have to leave Singapore. The government really wants to keep the city clean and will fine you for chewing gum.

     Before you leave for the United Arab Emirates you'd better make sure you aren't visiting during Ramadan(斋月). During that time you aren't allowed to eat or drink in public. Tourists have been fined up to $275 for drinking in public.

    Lovers spend so much time kissing each other goodbye at train stations that trains often start late. This law— no kissing your lover goodbye at train stations – is rather old, and isn't in use today in France.

In Thailand it's against the law to drive a car or motorcycle without a shirt on, no matter how hot it is. Punishments are different in different areas and can include warnings and tickets costing about $10. No joke — the local police will stop you.

     Studies in Denmark have shown that cars with their headlights on are more noticeable by other drivers than those with their headlights off. Drivers there are required to leave their headlights on even during the day, or they may face a fine up to $100.

    Do you often buy things using coins? Don't do it in Canada. The Currency Law of 1985 doesn't allow using only coins to buy things. Even the use of the dollar-coin is limited (受限制的). The shop owner has the right to choose whether to take your coins or not.

    Make sure you know about these laws before your next trip. Better safe than sorry.

    At times my mom has been uncomfortable seeing these qualities in me. For example, when I was 12, I went to Puerto Rico all by myself to stay with my grandmother for the summer. My mom was extremely nervous about it. She kept telling me how things were different in Puerto Rico, to always put on sunscreen， not to wander away from my grandmother, and other warnings. She helped me pack and did not leave the airport until she saw my plane take off.

    But despite her worries, she let me go on my own. As I moved into my teens, she continued to give me space to grow and learn, even when it might have been difficult for her. When I reached my senior year, I decided to move away for college. Once again I found that I differed from my peers. While many of them wanted to stay close to home, I couldn't wait to be out in the world on my own. While my mom may not have been happy at the thought of my going away, she was supportive and excited for me.

    One big thing I realized during my senior year, as my mom granted me more freedom, was that she actually believes in me and trusts me. That means a lot. Most of my life, and especially when I was little, the main person I tried to impress in my schoolwork or other things was my mother. I knew she expected nothing but the best from me. Sometimes it was hard to live up to her standards: getting a single B on my report card would make me feel bad because I knew she wanted me to have all As.

    I know that her high standards have helped me stay focused on what's important, like education, and made me who I am. I am thankful for her support and involvement in my life. Most of all I respect her. She is the strongest woman I know and that's why I have turned out so strong and independent.

    People think of cats as cute. But research published in a psychology journal calls them neurotic (神经质的) and unstable. Researchers from the University of Edinburgh in Scotland and the Bronx Zoo in New York compared the personalities of domestic house cats with those of four different types of wildcats.

    To better understand their personalities, the researchers rated a number of animals behaviors on what psychologists call the Big Five human personality traits (特征).

    Domestic house cats have similar personality structures to African lions. "It's what cats do pretty much on a daily basis, things like being anxious, being timid, being excitable, being aggressive toward humans, being aggressive toward each other, "said Max Wachtel, a Denver psychologist who didn't participate in the study. "All of those are characteristics you see in those cute little house cats, and you also see them in lions."

    If you ever thought your cat was anxious, insecure, tense, suspicious or aggressive toward you, you aren't making it up, he said. If they were bigger, they probably would consider killing you.

    But the news isn't all bad: Just like lions, house cats are also playful, excitable and impulsively funny. They just aren't very predictable. One moment cats will be enjoying bell scratches, and the next they will be biting you to make you stop.

    "It is good to understand the personality characteristics of our pets," Wachtel said "Different cats have different personalities, but as a species, there are a lot of commonalities."

    The researchers also studied personality traits of Scottish wildcats and some other animals “Across the five species we assessed, personality structure was strikingly similar and also seemed to be related to other studies' findings, such as in tigers, "the researchers wrote in their study in the November 2014 issue of the Journal of Comparative Psychology. But house cats were most like lions, potentially because they live in semi-social surroundings and lions are the most social of cats.

    “They're cute and furry, but we need to remember when we have cats as pets, we are inviting little predators into our house," Wachtel said. "Cats can be fantastic, sweet companions -until they turn on you.”