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.

    The ancient Chinese divided the sun's annual circular movement into 24 parts. Each part was called{#blank#}1{#/blank#} specific “Solar Term（节气）”. The criteria for the formation of Twenty -four Solar Terms were developed through the observation of changes of seasons, astronomy and other natural {#blank#}2{#/blank#} (phenomenon) in this region and have been progressively applied nationwide

    It {#blank#}3{#/blank#} (start) from the Beginning of Spring and ends with the Greater Cold,{#blank#}4{#/blank#} (move) in cycles. The theory spreads from generation to generation and is {#blank#}5{#/blank#}(traditional) used to direct production and daily routines. It, in particular, remains{#blank#}6{#/blank#} (importance) to farmers for guiding their practices{#blank#}7{#/blank#} is used widely by communities and shared by many racial groups in China. Some festivals in China are closely associated{#blank#}8{#/blank#}the solar term. It may also be referenced in children's songs, folk songs and old sayings, These various functions of the solar term have strengthened{#blank#}9{#/blank#} (it) position as a form of intangible cultural heritage(非物质文化遗产) and have made a great {#blank#}10{#/blank#} (contribute) to the community's cultural identity.

    Have you ever wondered{#blank#}1{#/blank#}children always seem to have bags of energy and never run out of steam? Researchers have discovered that children have the levels of recovery of endurance athletes. In fact, scientists say children's muscles recover from "high-intensity exercise" a lot{#blank#}2{#/blank#}(quick) than athletes. A study looked at the performance levels of children when they were cycling, and compared their fitness to {#blank#}3{#/blank#}of athletes. Researcher Dr Sebastien Ratel suggested they {#blank#}4{#/blank#} (find) the children used more of their aerobic metabolism and were therefore less tired during the high-intensity physical activities. The children also recovered very quickly-even faster than the well-trained adult endurance athletes.

    The researchers hope that{#blank#}5{#/blank#}(they) findings will help scientists have a better{#blank#}6{#/blank#}(understand) how the human body changes with age. It could lead to advances in the fight {#blank#}7{#/blank#} diabetes and other diseases. Dr Ratel said the research was{#blank#}8{#/blank#}(particular) important as more children were become less active. He warned: "With the diseases related to physical inactivity{#blank#}9{#/blank#}(rise), know the changes with growth that might contribute to the risk of disease. "{#blank#}10{#/blank#}is helpful for children to maintain their fitness as they grow up and play as much as they could so they remain healthy as adults.