Lots of people stress out about talking in front of the class or getting laughed at if they make a mistake in front of an audience. {#blank#}1{#/blank#} The “stress hormones" that your body produces at times like these can actually help you focus.

    But when worry and stress about performing get to be too much, these hormones give people that “red alert(紧急状态)” feeling—the one that causes you to feel cold or sweaty, or get butterflies in your stomach. {#blank#}2{#/blank#}

    Be prepared. {#blank#}3{#/blank#} Rehearse(排练) as much as you can and practice in front of others at every opportunity. Most of all, think positively. Tell yourself “I'll be OK" or “I can do this" even if you are not 100% sure of it

    Look after yourself. Before big performances it's easy to let taking care of yourself slip as you spend too much time on rehearsals and practice. {#blank#}4{#/blank#} Exercise can also help you feel good, and along with sleep and nutrition, is an excellent way of keeping those stress hormones from getting out of control.

    Find out what the experts do. You can find books, DVDs, and online information about how to give your best when you perform, depending on what type of performance you're preparing for {#blank#}5{#/blank#} Or ask the cast of your school play or your drama or music teacher how they beat stage fright. And if your parents or grandparents ever performed, they may have their own secrets to share.

    There have been times in my life when I felt satisfied.Sometimes it was because I achieved a goal I had set. Sometimes it was because I overcame a fear or passed a test.However,every time I feel that way,I learn again that full isn't full.

    When I was a little boy,I felt that the love I had for my mom and dad,and the love they had for me,just filled me up.Surely in a house full of nine people lived a young boy who loved and was loved as fully as a person could stand. Imagine my surprise as I then extended（扩大影响）that love to my grandparents,my uncle & aunt,cousins,etc.As I grew older,I met and married a beautiful woman that I thought entirely filled me up with love.I could not imagine there would be any more room.Then a few short years later we added one daughter and then another daughter to our family.Again,I had room to love and be loved.See what I mean?Every time I feel that life and love are as good as they can get,they get better.

    There is a lesson here for us.We ought to always have a heart that is open to expanding.To do more,love more, live more,learn more,overcome more,forgive more and the list could go on.Each of us knows 100 stories about men and women who have proved the impossible to be possible.Every day we stand at the crossroad and must decide if we are going to be a better person today than we were yesterday.

    You are not full yet.Young or old,there is still room for more.

    The US teenager Thomas Cheatham had planned to study Latin during his time at Hebron High School in Texas. But when he learned that the school district was going to offer a Mandarin class, he quickly changed his mind.

    “I thought Mandarin would be more beneficial than Latin,” said Cheatham, who is now in his second year of studying the language. He speaks Mandarin to order food at Chinese restaurants and can read social media posts from his Chinese-speaking friends.

    While it's a difficult language to master, the high school junior, who plans to study computer engineering, thinks it will be important for his career. “Chinese is a good language to know, especially with China becoming a growing power,” he said.

    Many experts agree that proficiency in a language spoken by a billion people worldwide will give American students an edge in the global economy. “People are looking at China as our next economic competitor, and interest in Mandarin is growing,” said Marty Abbott, executive director of the American Council on the Teaching of Foreign Languages. “We're seeing it in all parts of the country. ”

    Abbott estimates that as many as 100, 000 students are now studying Mandarin throughout the US, in public and private schools. She said the US government has designated (指定) Mandarin as a “critical needs” language and provides professional development programs for teachers. “Our government wants to increase our language competency for national security and economic competitiveness,” Abbott said.

    At the same time, the Chinese government is spreading knowledge of the Chinese language and culture through Confucius Institutes established in many US states. For example, the Confucius Institute at the University of Texas in Dallas has been the home of a Confucius Institute for 10 years. It sponsors Confucius Classrooms at 21 local public and private schools, where tens of thousands of students are learning Mandarin.

Senses That Work Together

    When we think about how our senses work, we usually imagine them operating separately: you sniff a flower, and the smell is delivered uninterrupted from nose to brain. However, it's more complex than that. Most evidence for cross modal perception (知觉) comes from studies into sound and vision (视觉). But research that shows other senses crossing over is coming out all the time, and it seems that even sound and smell sometimes form an unlikely pairing.

    When New York researchers, Daniel Wesson and Donald Wilson, tried to find out the truth about a "mysterious” area of the brain called the olfactory tubercle, they had to deal with this fact. Originally, they only intended to measure how olfactory tubercle cells in mice responded to smell. But during testing, Wesson noticed that every time he put his coffee cup down, the mouse cells jumped in activity. In fact, the olfactory tubercle is well-placed to receive both smell and sound information from the outside world. Later they found that among separate cells, most responded to a smell but a significant number were also active when a sound was made. Some cells even behaved differently when smell and sound were presented together, by increasing or decreasing their activity.

    Of course, mice aren't people, so research team has been carrying out further experiments. They pulled together a group of people and gave them various drinks to smell. Participants were asked to sniff the drinks, and then match them to appropriate musical instruments and produce the notes at different levels. The results were interesting: piano was regularly paired with fruity fragrances; strong smells sounded like the instruments that are made of metal.

    Further research found that listening to different sounds can change your perceptions. Studying taste this time, the team ordered some special toffee (太妃糖) and put together “soundscapes” corresponding to bitterness and sweetness. Participants tasted similar pieces of toffee while listening to each soundscape, and found the toffee more bitter or sweeter, depending on which soundrack they were listening to.

    Studies like this are helping scientists correctly describe our understanding of the senses, and how the brain combines them with its advantage. The consequences are worth considering. Could we see musicians work together with chefs to produce sound-improved food and drink? Will you be ordering a coffee with a soundrack to bring out your favorite smell? Come to think of it, that could be one thing you hope coffee shop chains don't get round to.

    On her first morning in America, last summer, my daughter went out to explore her new neighborhood alone.

    Of course we were worried; we had just moved from Berlin, and she was just 8. But when she came home, we realized we had no reason to worry. She told us with pride how she had discovered the little park around the corner, and had made friends with a few local dog owners.

    When this story comes up in conversations with American friends, we are usually met with polite disbelief.

    A study by the University of California has found that American kids spend 90 percent of their free time at home, often watching TV or playing video games. Even when kids are physically active, they are watched closely by adults, either in school, at home, at afternoon activities or in the car. It seems that America's middle class has taken overprotective parenting to a new level, with the government even acting as a super nanny.

    Just take the example of the case of 10-year-old Rafi and 6-year-old Dvora Meitiv in 2015, in Silver Spring, Maryland, who were picked up by the police because their parents had dared to allow them to walk home from the park alone. The state's Child Protective Services said their parents were guilty.

    In reality, child abductions (绑架) by strangers in Silver Spring park are as rare as tiger attacks. Children are overprotected, which encourages dependency and affects their abilities to care for themselves and weigh risks. Mark Hemingway writes in The Federalist, "You know what it's called when kids make mistakes without adult supervision (监督) and have to struggle with the possible results? Growing up."

    At least, parents who want to give their children more room to walk around shouldn't be punished. Children are not easily damaged objects to be protected at all times.

    It's holiday season and time for shopping. There are a bunch of items on your shopping lists ranging from small gifts, toys and festive decorations to Christmas and New Year cards. What's your first reaction to products labeled "Made in China"? If you still tend to relate "Made in China" to poor quality, you need to update your ideas. China's ability to produce high-quality products has been recognized by a growing number of foreigners. It's a misunderstanding to associate low quality with "Made in China".

    Cameron Purdy, a Web user, says that China manufactures poor-quality products does not mean it cannot manufacture high-quality products. He explains that the poor-quality products one purchases in the US for example, are made in the quality that the American companies ask for. "The price that you pay for the product has no relationship to the cost of its manufacturing," suggested Purdy. For example, for an item priced at $20 in the US, the cost of manufacturing it paid by the American company is usually less than $1. To guarantee the room for profit, the Chinese co-manufacturer spends less than $1 to produce the item.

    Amanda Wu, who lives in Shanghai, noted that many top brands have manufacturing factories located in China, and the most convincing example of China's manufacturing quality is Apple products. On the back of the iPhone, one can find the product is Made in China—"Designed by Apple in California. Assembled (装备) in China. "Chinese and foreign Web users commented that some Chinese products with good reputations around the world are Haier, Lenovo, GREE, Huawei and China Railway High-speed.

    On the other hand, foreign misunderstandings can sometimes affect Chinese people's minds. For instance, when Chinese people travel abroad, some would still avoid buying products Made in China. It's time for the world to stop relating Made in China with low-quality products. Just remember, you get what you pay for.