As we know, DNA testing is very useful for crime fighting. But now crime fighters could have a new tool at hand. Researchers have developed a cutting-edge (前沿的) technique to identify human hair. Their test is quicker than DNA analysis techniques currently used by the police.

    DNA testing is commonly used for identification because DNA is unique to each individual. However, environmental and chemical processes can degrade(降解) DNA, limiting its usefulness over time. Protein (蛋白质) in hair, on the other hand, is more stable than DNA but can also have variations (变异体) that may be unique to the individual.

     “Our analysis process can be used universally,” says Ms. Huang, “One of our samples even included dyed hair and the test was 100 per cent accurate. The test was able to distinguish East Asians, Caucasians and South Asians.”

    Dr. Beauchemin says she has got in touch with law enforcement agencies about using the new technology. She is also planning to collect more hair samples and continue her research with a goal of finding where exactly in the world hair sample is from, to look for more races and determine specific age.

     “We are in a very similar place with protein-based identification to where DNA testing was during the early days of development,” said chemist Brad Hart. “This method will be a game-changer, and while we've made a lot of progress toward improving it, there are steps to go before this new technique is able to reach its full potential.”

My dad was in the Air Force. When I was a kid, we moved every few years. That meant a lot of good-byes. It also meant getting used to a whole new community and a whole new school each time we moved. I can still feel what it was like to have to walk into the new school—that sinking feeling in my belly, that heaviness in my throat. It would always take time for me to learn how everything worked, what was cool and what not. It was always a struggle to find where I could fit in.

    Already shy, I didn't have much self-confidence in my friend-making abilities. I was the girl walking in the halls with her head down, panicking. When I spoke, you could hardly hear my soft voice. I was nervous and doubted myself a lot.

    It was very hard not having a history with everyone else. I was an outsider. But what I did have was soccer. Wherever I went, I knew that I could fit it with the soccer ball. The soccer team meant a familiar place and immediate friends for me. I could express myself and feel good about myself on the field. Playing hard helped to get rid of all my nervousness.

    Throughout our lives, our self-respect goes down when we feel like a failure, and it goes up when we feel successful. Doing something well, being praised, and feeling loved goes a long way. We all need to explore opportunities where we can be good at something and feel good about ourselves. Physical activity and sport participation is a terrific way to build up our sense of self-confidence and self-worth.

The most anticipated films of 2018

    Thanks to movies like Wolf Warrior 2, Never Say Die, Youth, The Fate of the Furious an Dangal, the 2017 box office gross (票房收入) has reached new heights. Meanwhile, audience have been fed up with Hollywood's long dependence on sequel (续集) films. A lack of origin stories has been criticized for a while.

    As we embrace the new year, let's look to the future, and the most anticipated films in t following year.

Guardians of The Tomb

Country: China and Australia

Release Date: Jan 19, 2018

Director: Kimble Rendall

Stars: Li Bingbing, Kellan Lutz, Wu Zun, Kelsey Grammer

    An innocent discovery of a well-preserved mummified Emperor from 200 BC China unearths a 2000-year-old nightmare — a secret that should have remained buried.

Monster Hunt 2

Country: China

Release Date: Feb 16, 2018

Director: Raman Hui

Stars: Bai Baihe, Jing Boran, Tony Leung Chiu-wai

    Monster Hunt was a huge commercial success, breaking numerous box office records. The film took place in the distant past, when the human race existed alongside the Monster race. Monster Hunt 2 is the sequel of it.

Avengers: Infinity War

Country: United States Release

Date: May 4, 2018

Director: Anthony Russo, Joe Russo

Stars: Robert Downey Jr., Josh Brolin, Mark Ruffalo, Tom Hiddleston, Chris Evans

    The upcoming American superhero film, based on the Marvel Comics superhero team the Avengers, is the sequel to 2012's Marvel's the Avengers and 2015's Avengers.

Hotel Transylvania 3: Summer Vacation

Country: United States

Release Date: July 13, 2018

Director: Genndy Tartakovsky

Stars: Adam Sandler, Andy Samberg, Selena Gomez, David Spade

    This 3D animated cartoon movie, the sequel of Hotel Transylvania 2, is a fantasy-comedy for your whole family to enjoy.

A Language Programme for Teenagers

    Welcome to Teenagers Abroad! We invite you to join us on an amazing journey of language learning.

    Our Courses

    Regardless of your choice of course, you'll develop your language ability both quickly and effectively.

    Our Standard Course guarantees a significant increase in your confidence in a foreign language, with focused teaching in all 4 skill areas—speaking, listening, reading and writing.

    Our Intensive Course builds on our Standard Course, with 10 additional lessons per week, guaranteeing the fastest possible language learning (see table below).

    Evaluation

    Students are placed into classes according to their current language skills. The majority of them take an online language test before starting their programme. However, if this is not available, students sit the exam on the first Monday of their course.

    Learning materials are provided to students throughout their course, and there will never be more than 15 participants in each class.

Arrivals and Transfer

    Our programme offers the full package—students are taken good care of from the start through to the very end. They are collected from the airport upon arrival and brought to their accommodation in comfort. We require the student's full flight details at least 4 weeks in advance.

Meals/Allergies(过敏)/Special Dietary Requirements

    Students are provided with breakfast, dinner and either a cooked or packed lunch (which consists of a sandwich, a drink and a dessert). Snacks outside of mealtimes may be purchased by the student individually.

    We ask that you let us know of any allergies or dietary requirements as well as information about any medicines you take. Depending on the type of allergies and/or dietary requirements, an extra charge may be made for providing special food.

    Whenever we see a button (按钮), we are eager to press it because we know something will happen. This is true in most cases, for example on a doorbell and on the “on/off” button on the TV. But some buttons are actually fake, like the “close” button on a lift.

    Many people are in the habit of pressing the “close” button because they don't have the patience to wait for the lift doors to shut. But lifts'" close" buttons are a complete scam, at least in the US—the doors will not close any faster no matter how hard you press.

    It started in the 1990s when the Americans with Disabilities Act was passed in the US, making sure that all lifts stayed open long enough so that people with disabilities could enter. Only US firefighters and repairmen can use the buttons to speed up the door-closing process if they have a code or special keys.

    But to normal lift riders, the buttons aren't completely useless. According to psychologists, fake buttons can actually make you feel better by offering you a sense of control.

    “Perceived (能够感知的) control is very important. It reduces stress and increases well-being," Ellen J. Langer, a psychology professor, said, “Having a lack of control is associated with depression.”

    Experts have revealed that a lot of buttons that don't do anything exist in our lives for this same purpose. For example  many offices in the US have fake thermostats (温度调节器) because people tend to feel better when they think they can control the temperature in their workspace.

    But psychologists found it interesting that even when people are aware of these little "white lies", they still continue to push fake buttons because as long as the doors eventually close, it is considered to be worth the effort.

    "That habit is here to stay," John Kounios, a psychology professor, said, ''Even though I have real doubts about the traffic light buttons, I always press them. After all, I've got nothing else to do while waiting. So why not press the button in the hope that this one will work?”

    Three men traveling on a train began a conversation about the world's greatest wonders.

    "In my opinion, "the first man said, "the Egyptian pyramids are the world's greatest wonder. Although they were built thousands of years ago, they are still standing. And remember: the people who built them had only simple tools. They did not have the kind of machinery that builders and engineers have today."

    "I agree that the pyramids in Egypt are wonderful," the second man said, "but I do not think they are the greatest wonder. I believe computers are more wonderful than the pyramids. They have taken people to the moon and brought them back safely. In seconds, they carry out mathematical calculations that would take a person a hundred years to do."

    He turned to the third man and asked, "What do you think is the greatest wonder in the world?"

    The third man thought for a long time, and then he said, "Well, I agree that the pyramids are wonderful, and I agree that computers are wonderful, too. However, in my opinion, the most wonderful thing in the world is this thermos."

    And he took a thermos out of his bag and held it up.

    The other two men were very surprised. "A thermos?" they exclaimed. "But that's a simple thing."

    "Oh, no, it's not," the third man said. "In the winter you put in a hot drink and it stays hot. In the summer you put in a cold drink and it stays cold. How does the thermos know whether it's winter or summer?"