Researchers from the University of Michigan have found that astronauts' brains change shape during spaceflight. It is the first study {#blank#}1{#/blank#} (look) into how the brain changes in space. Researchers looked at high-tech MRI(磁共振成像)pictures of the brains of 26 astronauts who spent time in space. Twelve of the {#blank#}2{#/blank#} (astronaut) spent two weeks on the Space Shuttle, and 14 spent six months on the International Space Station. All of them {#blank#}3{#/blank#} (experience) increases and decreases in the size of {#blank#}4{#/blank#} (differ) parts of the brain. The longer an astronaut spent in space ,the {#blank#}5{#/blank#} (big) the size differences were.

    The research produced some {#blank#}6{#/blank#} (interest) findings. One was that on gravity means fluids do not drop in the body, {#blank#}7{#/blank#} there is a shift in the brain's position inside the skull. The brain becomes either smaller or bigger. The findings could help doctors to treat problems that affect the brain's function. They could treat people with problems {#blank#}8{#/blank#} (cause)by long-term bed rest. They could also help those who have a build-up of fluid in the brain, which can lead {#blank#}9{#/blank#} brain damage. We will understand more about {#blank#}10{#/blank#} neurons(神经元)in the brain connect. The findings will also help future trips to Mars.

    Wouldn't this be great? You come home from school and your new dog {#blank#}1{#/blank#} (wait)at the dor to greet you. Or, you have a bad and your new kitten jumps onto your lap for a hug. {#blank#}2{#/blank#} (have)a pet is a dream for many  teenagers. And finally your mum and dad have agreed. But just because you {#blank#}3{#/blank#} (allow)to get a pet doesn't mean you should. Pets are not toys but friends {#blank#}4{#/blank#} need our love and company. {#blank#}5{#/blank#} don't get a pet if you're not ready to devote.

    One of my fondest {#blank#}1{#/blank#}(memory) as a child is going to the river and sitting on the bank. There I would watch the bamboo trees bend{#blank#}2{#/blank#} the pressure from the wind and then watch them return {#blank#}3{#/blank#}(elegant) to their original position when the wind{#blank#}4{#/blank#}(die) down.

    When I think about the bamboo trees' ability {#blank#}5{#/blank#}(return) to its original position, the word “resilience (适应力)'' comes to mind. Have you ever felt like you were at your breaking point? Life is {#blank#}6{#/blank#} mixture of good times and bad times, and happy moments and unhappy moments. Always keep{#blank#}7{#/blank#} in mind that a measure of hope will take you through the unpleasant situation. With hope for a better tomorrow, things may not be as bad as they seem to be. The unpleasant situation may be much {#blank#}8{#/blank#}(easy) to deal with if the result is worth{#blank#}9{#/blank#}(have).

    The next time you are experiencing one of bad times or unhappy moments,{#blank#}10{#/blank#} take you close to your breaking point, bend but don't break!

    Parents' Day is {#blank#}1{#/blank#} American event for the parents and families. {#blank#}2{#/blank#} (surprising), this event was not even there two decades ago.{#blank#}3{#/blank#} was only in 1994 that this event got officially accepted in the USA.

    It is very hard {#blank#}4{#/blank#} (say) when the idea of Parents' Day actually came into picture. But it can be certainly said that this event is born to honor and appreciate parents {#blank#}5{#/blank#} are responsible for the upbringing of the new generation. Their hard work {#blank#}6{#/blank#} endurance (耐力) open up a new horizon for the humankind.

    As said earlier, Parents' Day {#blank#}7{#/blank#}(get) its acceptance in 1994. President Bill Clinton passed the law for {#blank#}8{#/blank#}(recognize), uplifting, and supporting the role of parents. It was decided that the fourth Sunday of every July would be celebrated as Parents' Day, which is similar {#blank#}9{#/blank#} Mother's Day and Father's Day.

    The tradition {#blank#}10{#/blank#} celebrating Parents' Day is relatively new. But within few years after its acceptance, the event has spread its wings to the whole world. Now the event is widely adopted.

    Last month I took the bus back to my hometown. I carried a big piece of luggage with me and put it beside my leg on the bus. As usual, I closed my eyes and {#blank#}1{#/blank#} （try）to take a rest. Suddenly, I felt someone {#blank#}2{#/blank#} (move) my luggage. I opened my eyes and looked up. It was the driver {#blank#}3{#/blank#} carried my luggage away, saying "you will be more comfortable if you put the luggage at the first row {#blank#}4{#/blank#} no one takes the seat". As a salesperson, I have taken these buses many times, and never have I {#blank#}5{#/blank#} (meet) such a considerate driver who cared so much about the passengers before. This simple act touched my soft heart and will always {#blank#}6{#/blank#} (keep) in my memory.

    I think we have to learn from him and serve our clients（客户） much {#blank#}7{#/blank#} (well). We have to be more considerate and offer more attentive service to our clients during {#blank#}8{#/blank#} (they) visit to us. Sometimes one little thing may make people happy or angry, {#blank#}9{#/blank#} make the clients decide whether {#blank#}10{#/blank#} (do) business with us or not.

    Ever wondered how many calories are in the human body? Or ever wondered why old people have {#blank#}1{#/blank#} (big) ears than they used to? The winners of Ig Nobel Prizes (搞笑诺贝尔奖) have got the answers.

    He Ig Nobel Prizes, founded in 1991, are to honor achievements {#blank#}2{#/blank#} first make people laugh, and then make them think, The ceremony {#blank#}3{#/blank#} (take) place at Harvard University every year. Winners' acceptance {#blank#}4{#/blank#}(speech) are limited to 60 seconds, {#blank#}5{#/blank#} (strict) policed by an eight-year-old girl.

    The honored research might seem ridiculous {#blank#}6{#/blank#} first sight, but that doesn't mean it lacks scientific value. For example, the research in 2006 on why dry spaghetti tends to break into more than two pieces was important {#blank#}7{#/blank#} (discover) failure in bridge spans (跨度) or human bones And a follow-up paper {#blank#}8{#/blank#} (publish) by MIT physicists several years later. But people are more likely to read about {#blank#}9{#/blank#} (break) spaghetti than to read an academic paper. Even when there is no immediate usefulness, {#blank#}10{#/blank#} is still good to encourage people to observe and think.