A brain can also simply be a smartperson,  If a person is called brainy,she is smart and intelligent. If a family has many children but one ofthem is super smart, you could say, "She's the brains in the family. "And if you are the brains behind something you are responsible for developing or organizing something. For example, Bill Gates is the brains behind Microsoft Brain trust is a group of experts who give advice. Word experts say the phrase "brain trust" became popularwhen Franklin D. Roosevelt first ran for president in 1932, Several professors gave him advice on social and political issues facingthe U.S.

    These professors were called his "braintrust." These ways we use the word"brain" all make sense. But other ways we use the word are not so easy to understand. Forexample, to understand the next brain expression, you first need to know theword “drain." As a verb to drain means to, remove something by letting it flow away. So abrain drain may sound like a disease where the brain flows out the ears. But, brain drain is when a country's most educated people leave their countries to live in another. The brains are, sort of, draining out of the country.

    However, if people are responsible for agreat idea, you could say they brainstormed it. Here, brainstorm is not an act of weather. It is a process of thinking creatively about a complex topic. Forexample, business leaders may use brainstorming to create new products, and government leaders may brainstorm to solve problems.

    If people are brainwashed, it does notmean their brains are nice and clean. To brainwash means to make someone accept new beliefs by using repeated pressure in a forceful or tricky way. Keep inmind that brainwash is never used in a positive way.

    When my students ask me why I live in a tiny house, they ask it in light of all the “sacrifices(牺牲)”I an making. They know that I have moved from a large apartment in the city to a small custom-built home on wheels in the backyard woods. They know I forego running water, Internet connection, sewage(下水道), and reliable phone reception.

    However, it was possible for me to be truly happy while living with very few material things. My body responded well, in health, fitness and mood, to a schedule more consistent(一致的)with the natural day and night cycle. Observing the daily sunset, hosting friends for days at a time, reading, writing letters to my families and friends and exploring natural wonders in my spare time all were free and invaluable experiences.

    What was necessary to my survival proved to be a rather short list-healthy food, clean and drinkable water, heat source, weather-protecting shelter, weather-suitable clothing, equally important friends and mental and physical stimulations(刺激).

    When I returned to life in the US, I couldn't help but sense a deep and uneasy belief that life suddenly changed. I felt disconnected with many things- the earth, others, my food source, my waste disposal, the natural cycle of my body and the productive interests. These are the things I once cared for but now find myself too busy to enjoy. How was it that I was earning literally 40 times my Peace Corps salary and was less healthy, satisfied and intentional in my daily schedule? I found myself asking-what is it to be rich anyway? Therefore, last August I let go of most of my possessions and moved into a tiny house on wheels because I wanted to see if I could live a more enjoyable lifestyle. So far so good. No inconvenience has made up for the many positive benefits that continue to come from this change in lifestyle. I believe that I have made the right decision.

    As a new driver with little experience behind the wheel, having to turn into another lane（车道）to avoid a careless driver talking on a cellphone is not something that I am prepared for. According to the New England Journal of Medicine, an accident is four times more likely to happen than normal while you are talking on the phone. Therefore, I hold the view that using a cellphone while driving should be outlawed（宣布……不合法）.

    Cars are two-ton weapons and should be treated as such. When drivers put a key in the engine, they are taking on the responsibility of being a driver. Answer the phone while driving is like taking the safety off a gun ― at any moment something could go wrong and change a life forever.

    A few countries, including Australia, Great Britain, Spain and Israel, have recognized the damage that cellphone use can cause. According to Tom Alex of The Des Moines Register, people who talk on cellphones while driving are just like drunk drivers. They are likely to make a deadly mistake, causing them to hurt themselves or someone else.

    Some may think that cellphone are helpful when you need directions or are in an emergency situation. Although I agree, I believe the safest way to use your phone is to pull over to the side of the road first. Some may think that hands-free phones are less dangerous, but studies have shown that the danger remains the same with these.

    Using a cellphone while driving should be outlawed. One small mistake could change your whole life. Please don't let that happen ― stay off your cellphone while driving.

    Photography（摄影） is a very popular art form. Anyone with a camera – or a mobile phone – can practice it. A picture communicates in a way that words often can't. As the photographer Destin Sparks put it, “Photography is the story I fail to put into words.” And there's no better chance to practice the art of photography than during our vacation time.

    Holiday photos have been a part of the culture of travelers for a long time. For decades, vacationers have made sure they've packed a camera along with bathing suits, Hawaiian shirts and sunglasses. A camera is an important holiday item. But over the last 10 years, photography has become much more popular. It's easy to capture ( 捕捉 ) still and moving pictures of places of interest, and it's also easy to show off these pictures on social media. Armed with their smart phones, tourists, this year more than ever, are capturing the beauty of our planet.

    Of course, travel companies have caught on to this. Trekksoft has an example of photo-tourism from the United States, a land with a vast choice of beautiful locations. Antelope Slot Canyon Tours in Arizona specializes in tours of the state's famous canyons（峡谷）, which gives photographers the chance to capture them on camera.

    Most of the tourists are able to make beautiful images with just their mobile phones. Still, help is on hand from the tour guide for those who aren't great at using their cameras. These tour guides have taken a course in photography in case the skills they've learned would help their customers.

Even though it is just a few years old, the comic strip, Cul de Sac, has already won many fans through its characters. So when cartoonist, Richard Thompson, announced that he had been diagnosed with Parkinson's disease, his fans sat up and took notice.

One of the fans was Chris Sparks, a designer and web developer in North Carolina. Sparks was building a website for Thompson when the cartoonist announced his disease. He started reading more about Parkinson's disease through books and websites. There he found that people could form public fund-raising teams to raise money for Parkinson's research. He quickly decided to form his own team: Team Cul de Sac.

However, Sparks decided to take a different path. He has contacted dozens of cartoonists around the world, who will contribute artworks inspired by the Cul de Sac strip. Thompson's publisher, Andrews Mcmeel, has agreed to release them in a book next year. Some of the profits from the book will go to the research. And after the book is released, the artworks will be auctioned off. All profits will go to the research team. The aim is to raise $450,000 for the foundation. "We've already had around 80 people who say they are interested in contributing", says Sparks.

Although many people with Parkinson's disease are private about their condition, Thompson is not one of them. He's happy to put his support behind the project. "I think we can make a difference," says Sparks, who points out that his love of comics inspired him. "I've been reading comics since I was 5 years old, and most of the cartoonists I've met have been wonderful human beings,"he says. "They've made a difference in my life, and I hope to make a difference as well."

Chinese classical poetry is Chinese traditional poetry {#blank#}1{#/blank#}(write) in classical Chinese and featured by certain traditional forms. Many poems come from particular historical periods, such as the poetry of the Tang Dynasty. Its existence {#blank#}2{#/blank#}(date) back to at least as early as the publication of the Classic of Poetry or Shi Jing. {#blank#}3{#/blank#}(variety) combinations of forms and genres exist. Many or most of these {#blank#}4{#/blank#}(appear) at the end of the Tang Dynasty. 

Use and development of Chinese classical poetry {#blank#}5{#/blank#}(active) continued up to the year of 1919, {#blank#}6{#/blank#}the May Fourth Movement took place, and it is still developing even today. Poetry created during this 2,500-year period of more or less continuous development shows a great deal of {#blank#}7{#/blank#}(diverse)—classified by both major historical periods {#blank#}8{#/blank#}by dynastic periods. 

 Of the key {#blank#}9{#/blank#}(aspect) of Chinese classical poetry, another is its close relationship with other forms of Chinese art, such as Chinese painting and Chinese calligraphy. Chinese classical poetry has proven to have a strong influence {#blank#}10{#/blank#}poetry worldwide.