Most nations have at least one type of food that people from other countries think is unusual or unethical（不道德的）to eat. In France, people eat horse meat and frog legs. In South Korea and parts of China, restaurants serve dog meat. And in Australia, it's common to cook kangaroo meat on the barbecue and use emu（鸸鹋）eggs to make pancakes.

    The kangaroo and emu are native to Australia. Both animals are important to the national image of Australia and appear on the Australian coat of arms. They're also central figures in the history of the indigenous（土生土长的）Australian Aboriginals（土著人）. However, Aboriginal tribes still hunt these animals for their meat, fur and fat.

    Today, Australian people continue to eat these animals. One of the reasons people eat kangaroo meat is that it's high in protein and low in fat, so eating kangaroo is a good option for anyone on a diet. It's also cheaper to eat kangaroo meat than other red meats. Because of this, a lot of university students choose to buy kangaroo meat. BBC News also reported that Australian scientists believe that eating kangaroo meat is good for the environment--kangaroos have different digestive systems than cows and sheep, meaning they produce less methane（甲烷），the second biggest contributor to global warming.

    While emu meat is high in iron and vitamin C, most people don't think it tastes good. For this reason, they prefer emu eggs. One egg is large enough to make seven omelettes（煎蛋）. And while it's illegal to collect emu eggs from the wild, they can be bought from emu farms. Rather than cracking the beautiful dark shell, it's better to drain it by putting a small hole at each end and blowing. Afterwards, you can even carve a design into the eggshell.

    There's no doubt that water is vital to any life. About 60 percent of the average adult human body is made of water. This includes most of your brain, heart, lungs, muscles and skin, and even about 30 percent of your bones. Yet there's little scientific agreement about the exact amount of the stuff an individual should consume each day. So how much water do you actually need to drink to be healthy?

    You may have heard that you should drink eight 8-ounce glasses of water a day. Yet, the downside of this rule, researchers say, is that drinking water by the glass is not the only way that humans take in it. The “8 X 8” rule essentially overlooks two big sources of daily water consumption. One such source is food. Everything you eat contains some water. Watermelons, for example, are more than 90 percent water by weight. Different diets naturally contain different amounts of waters, and the counts. The other key water sources are other beverages. Non-alcoholic drinks such as coffee, and tea, contain mostly water and all contribute to your hydration（水量）.

    So, between all the food, water and other fluids you consume in a day, how much water should you aim to take in?

    The National Academics of Sciences suggests that woman consume a total of approximately 2.7 liters (91 ounces) of warm from all beverages and foods each day and men 3.7 liters (125 ounces). But these are just general guidelines.

    The truth is, there is no magic standard for hydration—everyone's need vary depending on their age, weight, level of physical activity, general health and even the climate they live in. The more water you lose, the more water you'll need to replace with food and drink. If you are looking for concrete advice, though, the best place to look is within. Drink up when you're thirsty.

    In this day and age,it may seem that getting two people with different views together to discuss them leads to a disaster.Just think about what would happen if you sat down and had an open and honest conversation with someone with completely opposing views.Could it bring you closer together?

    However,the Human Library Organization is counting on it.At a Human Library,people volunteer to become "books" and make their experiences open and available."Readers" are encouraged to ask them questions freely,and they'll get honest answers in return.There's no judgment,and no questions are off—limits.

    You won't find unpleasant comments,and you won't lose faith in humanity.At the Human Library,you actually feel letter about the world you live in.You might even make a new friend!

    "The human books consist of people who have been discriminated by society."said Ronni Abergel,the Human Library Organization's founder,who has set out to build a space for conversations that can challenge prejudices through dialogue."The most pleasantly surprising thing about it is how close all the human books become to one another."she said.

    Human Libraries help to remind us there really is more that unites us than divides us.And as events now spread throughout 82 countries,with Human Libraries even set to launch soon in Pakistan and Jordan,you can tell that is a shared feeling.

    "We can spend billions and billions in trying to build up homeland security and our safety,but real safety comes from having positive relations to other groups in your community."said Abergel,"Real safety is not going to come from building walls.It's going to come from reaching out and getting to know each other."

    A man, who sometimes takes my bus, is in rags. His life seems different from that of the others. He looks exhausted and carries nothing. He appears along a downtown street, seemingly out of nowhere. We sometimes want to know where he sleeps at night.

    A few weeks ago he boarded the bus. A few stops later, a young woman boarded. She swiped (刷) her bus-card, only to find the machine would not accept it. The driver told her to pay the $2.25 fare. “I just bought this card,” she said. “I paid the money...”

    The driver said she could take the card back to the sales office and explain the problem. In the meantime she would have to pay the fare for that day. The woman became confused and distressed. The rest of us just watched, wondering how the problem would be solved. Suddenly the man rose from his seat, dropped a few coins into the fare box.

    “You're lucky,” the bus driver said quietly. “He paid for you.” Silence fell over the bus. The rest of us had watched the woman's discomfort, but he felt it. We lawyers, journalists and business people headed downtown to help fix the world. He fixed her world.

    I haven't seen him since that day. Some people believe angels occasionally drop down and move among us. All I know is that I have a new respect for the simple act of kindness. It speeds us along on our way.

    Fabien Cousteau was born with deep love for the ocean. His grandfather and his father were ocean explorers and documentary filmmakers. Fabien spent his early years on his grandfather's ships. Today Fabien follows in his family's footsteps to protect the planet's endangered ocean life. With his vast knowledge and experience, he tries to strike a balance between environmental problems and market economies.

    Fabien is well known for his study of sharks. During 2000-2002, he created a TV special called Attack of the Mystery Shark based on the shark attacks that occurred along the New Jersey shoreline in the summer of 1916. Then in 2003-2006, with the help of a large crew, Fabien created a shark submarine (潜艇) that enabled him to put himself inside the shark world, providing people with a rare view of the mysterious and often misunderstood creatures.

    For the next four years (2006-2010), Fabien was part of a series called, Ocean Adventures, which offered a rare look into some of the most fantastic ocean species (物种) and environments.

    In 2010, Fabien started Plant A Fish, a nonprofit project for children to help restore local water ecosystems by replanting key ocean species. Save the world, one fish at a time. The project is still in progress now and its final goal is to plant 1 billion "fish" worldwide.

    From June 1 to July 2, 2014, Fabien and his team spent 31 days underwater to research how climate change and pollution are affecting the oceans. Fabien's Mission 31 broke new ground by going deeper, longer and further, exposing (显露) the world to the adventure and the mystique (神秘) of what lies beneath.

    Fabien is currently working on a documentary film about the adventures of Mission 31, as well as building an Ocean Learning Center to provide children around the world with the opportunity to learn about oceans and engage with ocean explorers directly through social media.

    To have a successful job interview, you need to make good preparations beforehand. Here are some suggestions on what you should do before the interview.

    ⑴Find out as much as you can about the company. What goods or services do they provide? How long has it been founded? Read articles about it. Talk with people who work there. Perhaps you can look at the company website, or find some information on the Internet.

    ⑵Be sure of the time of the interview, the place and the person you'll see.

    ⑶Think about the kind of questions that the employer might ask. Write out questions and possible answers.

    ⑷Rehearse the interview with family members or friends. They can ask you questions from the list you've prepared and you can try to answer.

    ⑸Dress properly. Don't be too formal or too informal. Choose your clothes, shoes.

    ⑹Wash. Make sure that you are clean, and that your teeth have been freshly brushed.