Not so long ago, a sailor sailing across the cold waters of the northern Pacific Ocean might have had every chance of being confronted by a sea cow. This cow would have measured 10 meters long, and weighed between five and ten tones. And it would spend most of its day cruising the seas, eating grass growing underwater. The cow in question was known as Steller's sea cow, which is now extinct.

    Today, many people are unaware that such an extraordinary creature once existed, or don't know its incredible story. But scientists have discovered many fundamental facts about this mystical animal.

    Surprisingly, the first recorded sighting of a Steller's sea cow didn't happen until 1741, when a sailing expedition was stuck on an uninhabited island, later named Bering Island. The sailor survived by hunting and eating the huge sea cow. Like its modern relatives, the sea cow lived in herds. That and its slow-moving behaviour made it easy to be caught.

    Those sailors that escaped Bering Island spread word of the bounty(大量) of meat to be found off its shores. As a result, more and more expeditions came to hunt the animals. One report stated that one sea cow could feed 33 men for a month.

    Incredibly, just 27 years after the island and species had been discovered by modern man, the last sea cow was reported killed. That makes the Steller's sea cow one of the few truly large mammals known to have been driven extinct in the modern age.

     Much meaning can be conveyed clearly with our eyes, so it is often said that eyes can speak.

     {#blank#}1{#/blank#}In a bus you may look at a stranger, but not for too long. And if he sensed that you are staring at him, he may feel uncomfortable.

     The same is true in our daily life. If you are stared at for more than necessary, you will look at yourself up and down to see if there is anything wrong with you. {#blank#}2{#/blank#}. Eyes do speak, right？

     Looking too long at someone may seem to be rude and aggressive.{#blank#}3{#/blank#}.If a man stares at a woman for more than 10 seconds and refuses to look away from her, his intentions are obvious. He wishes to attract her attention, and let her know that he is admiring her.

     However, when two persons are engaged in a conversation, the speaker will only look into the listener's eyes from time to time to make sure that the listener does pay attention to what the former is speaking.{#blank#}4{#/blank#}.If a speaker looks at you continuously when speaking as if he trying to control you, you will feel awkward. A poor liar usually exposes himself by looking too long at the victim. He wrongly believes that looking straight in the eye is a sign of honest communication. {#blank#}5{#/blank#}

     Actually, eye contact should be made based on specific relationship and situation.

A. On the contrary, it will give him away.

B. Do you have such a kind of experience?

C. That's what normal eye contact is all about.

D. Actually, continuous eye contact is limited to lovers only.

E. After all, everybody likes to be stared at for quite a long time.

F. But things are different when it comes to staring at the opposite sex.

G. If nothing goes wrong, you will feel annoyed at being stared at that way.

    Trends come and go but style is eternal. So what is the latest fashion trend that defines this season? Let's take a look at the fashion trend in 2016 and be the first ones to embrace the latest trend.

    Head—It seems like everyone will be wearing a bucket hat this season. Bucket hat might sound a bit old-fashioned for some people, but the 90s trend is in season again! Spring and summer are always the seasons for casual clothes, so pairing the bucket hat with casual shorts or skirts would be your outfit to go in this spring and summer in 2016.

    Bottom—Summer is the season when everyone gets ready for the humid weather. The current season trend is making everyone have a more comfortable summer because wide-leg bottoms is in trend again. Perhaps not everyone likes wide-leg bottoms because this could possibly make people look shorter, choosing a high-waist wide-leg bottom and matching it with crop top will definitely make you look taller and trendy in 2016.

    Dress—Be prepared for embracing the feminine details this season. Ruffles(荷叶边) around the sleeve or ruffles all-over the dress will be everyone's favorite in 2016. All these little details will transform your look in season. Simple colors like pink and black are designer's favorites in this season too.

    Shoes—Many people thought wedges are also the shoes to go in spring and summer time, but in 2016, very flat flats are in trend again. Shoe designers are trying to have more combinations flats or low-heels with less of gender identity.

    Accessories—No outfit goes perfect without accessories. Adding statement accessories to your simple and natural outlook this summer is your day-to-night outfit. These jewels are doing to make you feel completed in day time and sparkled at night.

    You are the collector in the gallery of your life. You collect. You might not mean to but you do. One out of three people collects tangible（有形的）things such as cats, photos and noisy toys.

    There are among some 40 collections that are being shown at “The Museum Of”—the first of several new museums which, over the next two years, will exhibit the objects accumulated by unknown collectors. In doing so, they will promote a popular culture of museums, not what museums normally represent.

    Some of the collections are fairly common—records, model houses. Others are strangely beautiful—branches that have fallen from tree, for example. But they all reveal （显露）a lot of things: ask someone what they collect and their answers will tell you who they are.

    Other on the way include “The museum of Collectors” and “The Museum of Me.”These new ones, it is hoped, will build on the success of “The Museum Of.” The thinkers behind the project want to explore why people collect, and what it means to do so. They hope that visitors who may not have considered themselves collectors will begin to see they, too, collect.

Some collectors say they started or stopped making collections at important point: the beginning or end of adolescence—“it's a growing-up thing; you stop when you grow up,”says one. Other painful times are mentioned, such as the end of a relationship. For time and life can seem so uncontrollable that a steady serial（顺序排列的）arrangement is comforting.

    The St. Louis Post-Dispatch reported that the St. Louis Outlet Mall is expanding its restrictions on unaccompanied teenagers. In 2006, a parental-escort (陪同)policy was established: on Fridays and Saturdays starting at 6 p.m., anyone under 17 that isn't accompanied by a guardian who is at least 21 years old will be kicked out of the mall. It was around this time that other malls around the U.S. likewise banned unaccompanied teens during certain evening hours.

Starting from this Friday, the St. Louis Outlet Mall is pushing its parental-escort rule back to 3 p.m. on Fridays and Saturdays. Similarly, the Mall of America expanded its parental-escort policy during the recent holiday shopping season. Normally, the policy bans kids under 16 without guardians(监护人) from 4 p.m. until closing time just on Fridays and Saturdays. But because of a fight in the mall involving dozens of young people that took place on Dec. 18, 2012—- a weekday, the policy was broadened to include peak 2013 holiday shopping hours, including Thanksgiving Day and all of the Christmas week.

    Teen disturbances in other malls may cause more shopping centers to introduce or expand parental-escort policies. The Indianapolis Star noted that two incidents in 2013 in area shopping centers raised the possibility that Indianapolis malls might need to consider banning unaccompanied teenagers.

   Obviously, such bans are aimed at stopping violence and other outbursts involving teenagers. More importantly, from a purely business perspective, these bans aim to attract shoppers who might otherwise be hesitant to go to the mall because of concerns about violence and outbursts involving teenagers. The restrictions allow mall security officers to systematically kick out a group of people that are considered to be loud, thuggish and bad for business overall. But they attract much criticism from online communities. Some argue that teens have the right to shop without a guardian. “Not all teens are disrespectful and troublemakers,” Pamela Chapman wrote. “In fact, it's been my experience that most are good kids.”

Again, the biggest influence on stricter mall policies for teens seems to be that they're just plain good for business. Malls reported strong sales growth after they first carried out the policies six years ago. “We've had some success with the parental-escort policy, and families like shopping out here together,” the manager of the St. Louis Outlet Mall told the St. Louis Post-Dispatch . If there's one rule in retail, it's this—- if a small initiative proves successful in boosting sales, then it's all but guaranteed that a larger initiative will follow.

    Spend any time in London, England's capital, and you'll quickly gather that it's a multicultural (多元文化的) community. Look around at your fellow passengers on the Tube（地铁）or the bus. They're of every skin color and dress differently to one another. Listen, and you'll hear many other languages besides English spoken. Some of these people, no doubt, will be tourists who are in London to see the sights. But others – in fact probably most – will be living their lives there, along with millions of others.

    Along with white British people, there are Britons from, or with parents and grandparents from, the Caribbean, India, China and most other places. This makes London a fascinating place in which to live. The reason is that when people settle in a place, they don't just buy a house and live there, but bring aspects of the culture of their “old country” with them.

    The most visible sign of this is the number of restaurants offering dishes from different parts of the world. In a city in which it's estimated 250 different languages are spoken, you can expect a similarly wide range of foods to be available. You would expect in one of the world's leading cities to encounter(遇到) French, Italian, Chinese and Indian eateries. But in London you'll also find Polish, Patagonian and Palestinian restaurants.

    However, London's multiculturalism isn't just about food. Many types of people are gathered in one space, but the way they live differently shows in that space. They worship(崇拜)differently, for one thing. Alongside the famous old English churches by Nicholas Hawksmoor and Christopher Wren – responsible for one of the capital's most famous landmark, St Paul's Cathedral—you'll find mosques(清真寺), temples and synagogues (犹太教堂).

      London even speaks its own special kind of English. Language experts created the term “Multicultural London English” to identify the dialect of English that appeared at the end of the last century.

    All of this makes London a very surprising and varied place to call your home. But, in a way, this has long been true. In the 18^th century, the compiler(编纂者) of the first English dictionary, Samuel Johnson, once said: “ He who is tired of London is tired of life.”