Some years ago, SARS broke out in the mainland of China, {#blank#}1{#/blank#} (cause) some people to be killed or nearly got to death. {#blank#}2{#/blank#} severe was the situation that there was no time to debate who was {#blank#}3{#/blank#} (blame). The most important thing for the government to do was find out the cause of this {#blank#}4{#/blank#} (dead) disease. They invited all the top experts in this field to have a discussion and quite a few {#blank#}5{#/blank#} (suggestion) were put forward. Some of the top experts picked out those suggestions and tested them to see whether they were available. Doctor Zhong Nanshan chose one patient {#blank#}6{#/blank#} was seriously ill and had little hope of picking up and had the new medicine {#blank#}7{#/blank#} (test) on him. To his great joy, this patient recovered! He made his way to his office and telephoned the top official, telling him the exciting news. For {#blank#}8{#/blank#} (convenient), he moved to live in his office. His method did make sense. {#blank#}9{#/blank#} wasn't long before the other hospitals also controlled this terrible disease and kicked it out finally. If no efforts {#blank#}10{#/blank#} (make), China couldn't have defeated SARS.

    A neighborhood watch is an {#blank#}1{#/blank#} (organize) group of people who have volunteered to help prevent crime in their neighbourhood. They do this by {#blank#}2{#/blank#} (keep) an eye on their neighbors' households, patrolling the streets and contacting the police when they see wrong {#blank#}3{#/blank#} (activity). Neighbourhood watches have {#blank#}4{#/blank#} of history, but they{#blank#}5{#/blank#} (introduce) to modem American cities after the public was shocked {#blank#}6{#/blank#}( hear) how a woman was murdered in New York city while a number of witnesses stood by and did nothing. {#blank#}7{#/blank#}(recent), however, some people have strongly objected to the organization after n neighborhood watchman shot to death a black teenager, {#blank#}8{#/blank#} was on his way home in the evening. The shooting has led to a new suggestion {#blank#}9{#/blank#} neighborhood watchmen shouldn't carry guns while on patrol. Many neighborhood watch committees disagree {#blank#}10{#/blank#} this idea, saying that it will discourage volunteers from patrolling more dangerous districts. Besides, since Florida state law allows the carrying of guns, such advice is useless.

    You may not have noticed it before, but many people often sit with a hunched (驼背的) back when they are in a difficult situation, such as trying hard {#blank#}1{#/blank#} (solve) a math problem. But there's a reason for this: this body position helps to reduce pressure.

     However, according to Erik Peper, a health professor at San Francisco State University, poor posture (姿势) may make our brains work not as well as they {#blank#}2{#/blank#} (normal) do.

    Peper and a team of researchers {#blank#}3{#/blank#} (study) 125 students' performance in a math test and their different postures. The team found that good posture—for example sitting up straight—could help people perform better {#blank#}4{#/blank#} bad posture when they feel stressed.

    Another professor Richard Harvey further explained in Science Daily that sitting with bad posture might make us feel more {#blank#}5{#/blank#} (comfort), but it actually increases our pressure levels.

    So the next time you have to take a test, try sitting upright and taking a deep {#blank#}6{#/blank#} (breathe). If Peper's study is correct, this small change may have {#blank#}7{#/blank#} great influence on you.

    There are many things {#blank#}8{#/blank#} lead to poor posture. The good news {#blank#}9{#/blank#} (be) that posture can be improved at any age by {#blank#}10{#/blank#} (make) just a few simple corrections in the way one stands, sits and moves.