Body language is an important part of communication(交流). If you want to communicate well, it's important to understand how you can (and can't) use your body to say what you mean, especially when you're in a foreign country. If a person is bored, he won't look at the person who is talking to him. He will find other things to do. He may also keep looking at his watch or a clock. If a person is open to you, his arms and legs will not be crossed. And if a person is relaxed, you will know it by looking at his body, even his breathing is slower.

Here are some examples of body language:

    New mercury(汞) threat to oceans from climate change

    Rising temperatures could boost mercury levels in fish by up to seven times the current rates, said Swedish researchers in an article published in Science Journal. They've discovered warming increases levels of the toxin (毒素) in sea creatures. In experiments, they found that extra rainfall drives up the amount of organic material flowing into the seas. This alters the food chain, adding another layer of complex organisms which boosts the concentrations of mercury up the line.

    Mercury is one of the world's most toxic metals, and according to the World Health Organization, is one of the top ten threats to public health. The substance at high levels has been linked to damage to the nervous system, paralysis and mental impairment in children.

    The most common form of exposure to mercury is by eating fish containing methylmercury(甲基水银), an organic form of the chemical which forms when bacteria react with mercury in water, soil or plants. Levels of mercury in the world's ecosystems have increased by between 200% and 500%, since the industrial revolution say experts, driven up by the use of fossil fuels such as coal.

    In recent years there have been concentrated efforts to limit the amount of mercury entering the environment, with an international treaty, called the Minamata Convention, signed by 136 countries in place since 2013.

Researchers hope that the Minamata treaty will be successful and countries reduce the amount of mercury that is being produced. Otherwise this discovery of a previously unknown source could have impacts for human health.

    Other researchers in the field say that the new study highlights important issues that have previously been little known.

     “This work experimentally proves that climate change will have a significant effect of methylmercury budgets in coastal waters and its accumulation in fish,” said Milena Horvat from the Jozef Stefan Institute in Slovenia.

     “This work will also help us understand the formation of mercury in fish and help reduce mercury from emission sources (primarily industrial).”

    The kids in a village in Ethiopia wear dirty, ragged clothes. They sleep beside cows and sheep in huts made of sticks and mud. They have no school. Yet they all can chant the English alphabet, and some can make words.

    The key to their success: 20 tablet computers(平板电脑) dropped off in their Ethiopian village in February by a U.S. group called One Laptop Per Child.

The goal is to find out whether kids using today's new technology can teach themselves to read in places where there are no schools or teachers. The Massachusetts Institute of Technology researchers analyzing the project data say they're already amazed. “What I think has already happened is that the kids have already learned more than they would have in one year of kindergarten,” said Matt Keller, who runs the Ethiopia program.

    The fastest learner—and the first to turn on one of the tablets—is 8-year-old Kelbesa Negusse. The device's camera was disabled to save memory, yet within weeks Kelbesa had figured out its workings and made the camera work. He called himself a lion, a marker of accomplishment in Ethiopia.

With his tablet, Kelbasa rearranged the letters HSROE into one of the many English animal names he knows. Then he spelled words on his own. “Seven months ago he didn't know any English. That's unbelievable,” said Keller.

    The project aims to get kids to a stage called “deep reading,” where they can read to learn. It won't be in Amharic, Ethiopia's first language, but in English, which is widely seen as the ticket to higher paying jobs.

    Once when I was facing a decision that involved high risk, I went to a friend. He looked at me for a moment, and then wrote a sentence containing the best advice I've ever had: Be bold and brave and mighty (强大的) forces will come to your help.

    Those words made me see clearly that when I had fallen short in the past, it was seldom because I had tried and failed. It was usually because I had let fear of failure stop me from trying at all. On the other hand, whenever I had jumped into deep water, forced by courage or circumstance (环境), I had always been able to swim until I got my feet on the ground again.

    Boldness means a decision to bite (咬) off more than you can eat. And there is nothing mysterious about the mighty forces. They are inner powers we have: energy, skill, sound judgment, creative ideas––even physical strength greater than most of us realize.

    Admittedly, those mighty forces are spiritual ones. But they are more important than physical ones. A college classmate of mine, Tim, was an excellent football player, even though he weighed much less than the average player. “In one game I suddenly found myself facing a huge player, who had nothing but me between him and our goal line,” said Tim. “I was so frightened that I closed my eyes and crazily threw myself at that guy like a bullet (子弹) ––and stopped him cold.”

Boldness—a willingness to get yourself to the extreme—is not one that can be gained overnight. But it can be taught to children and developed in adults. Confidence builds up. Surely, there will be setbacks (挫折) and disappointments in life; boldness in itself is no guarantee (保证) of success. But the person who tries to do something and fails is a lot better off than the person who tries to do nothing and succeeds.

    So, always try to live a little bit beyond your abilities — and you'll find your abilities are greater than you ever dreamed.

    Choosing where to live may be one of the biggest decisions you'll make when you move to Sydney, but you'll have plenty of help.

    Temporary arrival accommodation

    Before you move to Sydney, we recommend that you book a temporary place to stay. Once you get here, you can look for longer-term accommodation.

    --sydney.edu.au/accommodation/short-term

    On-campus-residential colleges (fully catered饮食全包的)

    The University has eight residential colleges on the Camperdown/Darlington Campus, including International House, a residential community of global scholars. Colleges provide comfortable, fully furnished single rooms and daily meals, along with sporting, cultural, leadership and social programs. They also include on-site tutorials(辅导课) in addition to campus-based classes.

    --sydney.edu.au/colleges

    On-campus residences (self-catered饮食自理的)

    The University has two self-run residences—Queen Mary Building (QMB) and Abercrombie Student Accommodation—on the Camperdown/Darlington Campus. Both just under a year old, they house up to 1000 students. These residences provide modern single-study rooms with large common living, learning and study spaces, shared kitchens, a theatre, gyms, soundproofed music rooms, art studios, sky lounges and rooftop gardens.

    --sydney.edu.au/campus-life/accommodation/live-on-campus.html

    Off-campus living

    More than 90 percent of our students live off campus. The University is close to many dynamic and multicultural suburbs such as Annandale, Newtown, Chippendale and Glebe. A great place to search is our large online database of properties.

    --sydney.edu.au/campus-life/accommodation/live-off-campus.html

Through My Modern Met Academy, our online learning platform, you'll be inspired in classes taught by industry experts. Learn mixed media skills to take your work to a new level! 

Intermediate Embroidery (刺绣)

With the help of artist Floor Giebels, you'll get gradual instructions on how to craft embroidery on printed cloth. Giebels will show you how to combine embroidery with cloth decorated with a photograph. Using that as the base, she'll go into techniques for stitching (缝) over the image and finishing your frame for display. 

Cost/Time: $34.95/1.3h 

Architectural Illustration for Everyone

Artist Demi Lang will take you through the process of drawing structures step-by-step. You'll learn how to choose your tools and paper, and analyze the project's photo. The final assignment is a row of three buildings, which Lang will go through first in line drawing lessons, then inking over the sketch (素描), and adding color to bring it to life. 

Cost/Time: $45.95/ 3.3h 

Beyond Botanicals

In Anna Zakirova's class, she shares the secrets to creating flawless pressed flowers and leaves and using them as the basis for original artwork. Intended for beginners, her class starts with a detailed introduction to the proper tools and continues with an example of how to turn several types of flowers into an artwork. 

Cost/Time: $34.95/ 56min 

Introduction to Pet Photography

Taught by pet photographer Belinda Richards, this class offers in-depth guidance of shooting a gorgeous picture of your dog in a studio setting. Richards will break down how to work with your dog, photograph it, and edit your image. This class is meant for someone who already owns a DSLR camera and has a basic understanding of Photography.