Does your local town have a nickname？If so，what does it say about the area and the people who live there?

    Many cities are recognized across the world by  their unofficial titles.New York is the Big Apple，London is the Big Smoke，and Los Angeles is famously called La La Land.

    Now Britain's National Mapping Agency(规划局)，Ordnance Survey，and the British Linguistics (语言学)Charity，the English Project，are launching an interactive project to uncover the nicknames people use for local places.

    The project，which was launched last week to coincide with English Language Day，is called Location Lingo.It aims to identify the names people use every day，whether it's a term of endearment(昵称) or a hate name.

    The University of Winchester's Professor Bill Lucas is a leader of the English Project.He explains that unofficial place names often show what people think about a place.“The name that people conjure up or create for a place forms an emotional connection，”he says.“So Basingstoke becomes Amazingstoke，Swindon is known as Swindump.Padstow，hometown of chef Rick Stein，is nicknamed Padstein.”

    Basingstoke is a town in central England.The local nickname，Amazingstoke，shows the love that locals seem to have for the area.Swindon，on the other hand，is sometimes called Swindump，showing that local people think it's a big dump.Stanford Le Hope in Essex is called Stanford No Hope by locals.And Padstow in Cornwall is so closely associated with the local celebrity Rick Stein that it's become known as Padstein.

    Since launching the online database (数据库) last week，the creators have already received 3,000 alternative  titles for places and landmarks.

    Some also say that the project could even have a practical use.Glen Hart，Ordnance Survey's head of research，says the information could be very helpful to the emergency services，for example.“By having the most complete set of nicknames，we could help the emergency services quickly locate the right place，and maybe even save lives，”he says.

    A mouse looked through the hole in the wall to see the farmer and his wife open a pckage, and he was devastated to discover it was a mousetrap. Returning to the farmyard, he warned everyone. “There is a mousetrap in the house! There is a mousetrap inthe house! There is a mousetrap inthe house! ”

    The chicken raised her head and said, “Thanks for your warning. Mr. Mouse, but why should I be bothered by a mousetrap?” the pig sympathized, but said, “Wow, Mr. Mouse, I'm sorry for you I can tell this is a great concern to you, but it is none of my business.” The mouse returned to the house, head down and depressed, to face the farmer's mousetrap alone.

The very night a sound was heard throughthe house—-like that of a mouse trap catching its prey. The farmer's wife rushed to see what was caught. In the darkness, she did not see it was a snake whose tailwas caught by the trap, and it bit her. The farmer rushed her to the hospital and she returned home with a fever.

    The farmer killed the chicken to make fresh chicken soup for his wife, but her sickness continued. Frineds and neighbors came to visit her, and to feed them, the farmer butchered the pig. Then she died. So many people came for her funeral that the farmer had the cow cooked to provide enough meat for all of them.

    The mouse looked upon it all from his hole in the wall with great sadness.

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    You may have never heard of Lanthanum, Cerium or Neodymium, but these elements (元素) and others known as “rare earth” play a major role in modern technology. They can actually be found in many places on the earth, but not in quantities that can be mined. Only a few countries — China, America, India, Australia, Brazil and Malaysia have any that can be mined enough to be traded.

Even though some of these elements such as Cerium are as abundant as Copper, they are not found in concentrated amounts on the earth's surface. They are often mixed together with other metals, which makes extraction (提取) of these elements an expensive and an environmentally messy process. It was due to this reason that the term “rare earth” was invented.

    Rare earth metals are used widely in our life. Rechargeable car batteries, computers, iPhones, DVD players, computer monitors, televisions, lighting, lasers, glass polishing, and superconductors all use quantities of rare earth metals. Also, with the advancement in “green” technology like solar panels, these shiny materials are becoming more important than ever. An average electric car uses 10 pounds of Lanthanum for its rechargeable battery!

    America has large deposits (存储量) of rare earths and has one of the first mines. It was openedin Southern California in 1940. The element “Europium” was the first metal to be separated in quantity for use in color televisions. However, in the 1980's and 1990's, as China started producing these elements in Inner Mongolia, the mines in America and elsewhere could not keep pace. The mine in Mountain Pass, California also failed environmental regulations and shut down in 2002.

    Now, recognizing the importance of having more than one supplier of this important resource, other rare earth owning countries like India and Australia are either dusting off their rare earth mines or speeding up their production. It is believed that the debate over rare earths will become louder in the coming months and years.

    Elephants are able to know the difference between a man and a woman, and can tell an adult (成年人) from a child—all from the sound of a human voice. This is according to a study in which researchers played voice recordings to wild African elephants.

    The animals showed more fear when they heard the voices of adult Masai men. Usually Masai people hunt elephants, and this suggests that animals have grown to listen for and avoid them.

    Prof. Karen McComb and Dr Graeme Shannon from the University of Sussex led the study. They explained that in former research they had used similar experiments to show that elephants could tell—from the sound of a lion—whether the animal was a female (雌性) or a more dangerous male (雄性).

    Prof  McComb wanted to find out if the animals used their very sharp sense of hearing to recognize danger from humans.

    The scientists recorded Masai men, women and children saying, in their own language, "Look, look over there, a group of elephants are coming." They also recorded Kamba men saying this phrase.

    Masai people often come across elephants, which can result in violent (暴力的) hunting. Kamba people, however, mainly feed on agriculture, which does not generally bring them into violent touch with the animals.

    When the team played recordings of these different voices through a hidden speaker, they found that elephant family groups showed more fear in response to the voice of a Masai man, than to a Kamba man's voice. And the adult male Masai voices caused far more violent response than the voices of women or boys.

    On Tuesday. Google announced a new feature (特点) for the Google Assistant. People can send reminders to friends and family on their phone or their Google Home equipment.

    Google has named the new feature Assignable Reminders. Here's how the new Assignable Reminders feature works with Google Assistant.

    You start off by simply starting the Google Assistant by saying "Hey Google" or by whatever shortcut (快捷键) you have set on your phone. After this, you can tell Google Assistant to remind someone of something at a certain time.

    This feature will also be feasible on the Google Home smart speaker, or a smart display which works with Google Assistant. The person receiving the reminder can also replay the reminder by asking Google Assistant to show them a list of all their reminders.

    These reminders can only be sent to people who are already listed as family in your Google account (账户) or people who are linked (连接) and voice-matched to the same Google Home equipment.

    Another feature built within Assignable Reminders is the ability to set reminders based on someone's place. For example, you can set a reminder for friends to buy you something from a store as soon as they reach there.

    Assignable Reminders will be put into use in the next few weeks in the U.S. , the U.K, and Australia.