Paying a higher price than usual for a ticket to see a film in 3D is the annoyance of many a cinema-goer's life.

    But there may be a benefit to doing so, as a study has found that 3D films exercise the brain and improve short-term functioning in a similar way to brain-training tests.

    The research found that people who watched a movie in 3D improved cognitive (认知) skills, compared to those who watched it in 2D.

    The research was led by neuroscientist(神经学家) Dr Patrick Fagan from Goldsmiths University in London. More than 100 people took part in the experiment, where participants watched Disney film Big Hero 6 in either standard format or RealD 3D.

    They also carried out a brain-training-style test before and after seeing a section from the film. The test covered memory, reaction times and cognitive function and the results were compared later.

    According to the research, which was carried out in partnership with science group Thrill Laboratory, participants experienced a 23 percent increase in cognitive processing, as well as an 11 percent increase in reaction times.

    Dr Fagan said that the results showed enough of an improvement in brain function to suggest that 3D could play a part in improving brain power in the future.

    "These findings are more significant than you might think," he said. "It is a fact that people are living longer and there is a noticeable decline in cognitive brain function in old age which can worsen future quality of life. There has never been a better time to look at ways to improve brain function. The initial results of this study show that 3D films may potentially play a role in slowing this decline."

    A second part of the experiment involved those watching the film being fitted with headsets that scanned brain activity and this too showed heightened (加强的) activity when watching 3D. According to the results, participants were seven percent more engaged with what they were watching, adding to argument that 3D movies are more like watching real-life—something Professor Brendan Walker from Thrill Laboratory agreed with.

    "As Professor Brendan Walker's test concluded, 3D films are more attractive and heighten the senses — this, in turn, makes the brain run at quicker speeds," Dr Fagan said.

    Tone of voice is very important in human conversation. A person might use words that communicate one message and a tone that shows something very different. This possibility for confusion is one reason that businessmen encourage discussing things in person, rather than through email, as tone cannot be determined in the written form.

    The same rule is true with children. Children as young as a few months respond to a change in voice. It has been recorded that babies prefer to hear a story read by their own mother rather than another woman whom they do not know.

    Have you ever talked to someone who had little or no changes in their voice no matter what you were discussing? Think of the teacher or professor you had in the past that spoke in a monotone manner for the entirelecture. It is very boring and difficult to become interested in the topic.

    Parents should make an active effort to communicate with your child. If your child figures out how to open a box he or she has been struggling with and says “YES!” with pride in his or her voice, your response should be happy and excited (something encouraging, like “You did it!”). If you plainly said the same thing, you would not be matching the tone of your child.

    This applies to feelings that the child may express in everyday situations as well. If a child argues with a friend, your response should not be said in a high voice or with a smile. Seriously and sincerely you should say “You look sad” or “That must have been hard for you”.

    The tone of your voice expresses understanding, acknowledgement, connection and several other healthy things to your child. Although your words are very important, equally important is the tone with which you say those words.

Public Speaking Training

·Get a coach

    {#blank#}1{#/blank#}，so get help. Since there are about a billion companies out there all ready to offer you public speaking training and courses, here are some things to look for when deciding the training that's right for you.

·Focus on positives

    Any training you do to become more effective at public speaking should always focus on the positive aspects of what you already do well. Nothing can hurt confidence more than being told that you aren't doing well. {#blank#}2{#/blank#}, so good public speaking training should develop those instead of telling you what you shouldn't do.

·{#blank#}3{#/blank#}    If you find a public speaking course that looks as though it's going to give you lots of dos and don'ts, walk away! Your brain is so full of what you're going to be talking about.

    {#blank#}4{#/blank#} As far as we're concerned, there are basically no hard and fast rules about public speaking. Your audience can be your friends.

·You are a special person not a clone

    Most importantly, good public speaking training should treat you as a special one, with your own personal habits. {#blank#}5{#/blank#} Your training course should help you bring out your personality, not try to turn you into someone you're not.

A. You aren't like anybody else

B. You already do lots of things well

C. Turn your back on too many rules

D. Check the rules about dos and don'ts

E. Whatever the presentation, public speaking is tough

F.The one thing you don't want is for them to fall asleep

G. So trying to force a whole set of rules into it will just make things worse

    A long time ago people thought that the sun went round the earth. In some countries people even said that the sun was a god(神). They thought the god drove across the sky each day on a golden horse. Now we know the earth goes round the sun. It takes the earth a year to go a circle(圈) round the sun. Today men even know how far it is for the earth to go round the sun. They tell us that the earth travels over a thousand miles a minute on its journey round the sun.

    The sun is really a star. It is much bigger than the earth and it is very hot. Some people have been to the moon but we know that no one can ever go to the sun. It is far too hot for people to live anywhere near it. The sun is three hundred thousand times heavier than the earth and more than million times larger.

    Exercise is known to benefit people's mental health, but scientists recently discovered that too much exercise may have a negative effect on it.

    The researchers studied about 1.2 million people in the United States in 2013, 2015 and 2017. The participants, on average, experienced 3, 4 days of poor mental health each month. Those who did exercise experienced 1, 5 fewer days of poor mental health per month, compared to those who didn't exercise at all. The team found that people who exercised for 30 to 60 minutes three to five times a week had the best mental health, but those who exercised for more than three hours had worse mental health than those who didn't exercise at all.

    The scientists think that people who exercise so much may experience poorer mental health because that much exercise can be a sign of obsessive (强迫症患者) behaviors that have been associated with poor emotional and psychological outcomes. However, the only mental health disorder that the researchers looked at was depression.

    Among those who had been diagnosed with depression, people who did exercise experienced 3.75 fewer negative mental health days than those who did not, showing an ever greater difference, According to the Centers for Disease Control and Prevention. 7, 6 percent of people in the U.S. age 12 and over have depression. While all types of exercise appeared to help with mental health, cycling, gym-based exercise and team sports were the most beneficial.

    The team also looked at more specific factors, like education. People with a college education reported 17.8 percent fewer days of poor mental health than those without that level education Additionally, people in a healthy BMI (体重指数) range reported a 4 percent reduction in poor mental health days thin those whose BMIs were high. Even salary was a factor: compared to people with bower salaries, those with higher salaries experienced a 17 percent reduction in poor mental health days.

    The study showed that exercise can help with mental health, but that in some cases, limiting it may be necessary.

    Chewing gum(口香糖) has its origins in ancient times from Mayans to Greeks who would chew the resin(树脂)of certain trees for medical purposes and maybe even for freshening breath. The history of chewing gum continued as Native Americans introduced it to European settlers.

    Chewing gum hit the market after Santa Anna brought a case of chicle(糖胶树脂) from Mexico to New York. Santa Anna gave some to the part-time inventor Thomas Adams Thomas Adams changed the gum and marketed it as a candy. The invention took off and was known as Chiclets.

    In 1900 Frank Fleer coate chewing gum with sugar, and in 1906 Blibber Blubber was invented, but never made it to market. Blibber Blubber was too sticky and it was also too difficult to remove the burst bubble(破了的泡泡) from one's skin without using some special tools.

    A history of bubblegum just wouldn't be complete without mentioning the gumball machine, which popularized gum. The first gumball machine came onto the scene in 1907 and sold sugar-coated chewing gum.

    However, it wasn't until 1928 that bubblegum was created. Walter Diemer, working for Frank Fleer's gum company, discovered bubblegum by accident while experimenting in the lab during his breaks. The gum was named Dubble Bubble. Pink was the only color which could be used at the time, and Dubble Bubble has remained pink ever since.

    According to the International Chewing Gum Association,during WWII Dubble Bubble was handed out by US military members as gifts, thereby spreading its popularity among the peoples of Europe, Africa, and Asia. And in the 1930s he first bubblegum cards appeared. "the pictures changed from war heroes to Wild West figures to professional athletes."

    Bubblegum has been popular ever since, especially among children, thanks to its inventive shapes, and sugary flavors, from original bubblegum to a yardstick of fruity bubblegum.