阅读理解

    Every year in America, high-school students who want to go to college take a national examination called the Scholastic Aptitude Test, or SAT in a shortened way. Their score is an important factor in determining which colleges will admit them or whether any will be admitted at all. The Scholastic Aptitude Test measures one's mathematical ability and use of the English language. Traditionally, the English part involved grammatical questions and paragraphs that test reading comprehension.

    But the SAT folks have added a single question, to be answered in an essay, hand-written on the spot. That's an interesting way to test writing ability, but content aside, have you ever seen young people's handwriting lately? Or anyone's for that matter, in this age of computer keyboards? Students write numbers and sign their names on bank checks. They scribble class notes in what can generously be described as the written word.

    Yet today's kids are asked to write, thoughtfully and clearly, for several minutes on this SAT Test. Good luck to the text scorers who must work out difficultly the scrawl (潦草的字迹) of young people who've been typing on computers since the age of three! Teachers insist that good handwriting can not only help one's score on the SAT, but also, later on in life, impress potential employers. And don't forget, we all have to turn to handwriting from time to time, as computers go down when power goes out.

    Then how to improve the handwriting? Well, with a few simple steps you can improve your hand writing.

    Position the pen. You should hold the pen between the forefinger and the thumb, then rest it near the first knuckle (指节) of the middle finger. The rest of your fingers should be curled (卷曲) under your hand and your hand should remain relaxed.

    Evaluate your writing. Make changes to your letters till you like how they look.

    Take your time. Speed is bound to make your writing messy-looking.

    Practice. Practice it a lot; it's not enough to do it once and hope for the best. It has to be something you work at to make great improvements.

从某企业生产的这种产品中抽取200件，检测后得到如下的频率分布直方图：

（Ⅰ）根据以上抽样调查数据，能否认为该企业生产的这种产品符合“一、二等品至少要占全部产品90%”的规定？

（Ⅱ）在样本中，按产品等极用分层抽样的方法抽取8件，再从这8件产品中随机抽取4件，求抽取的4件产品中，一、二、三等品都有的概率；

（III）该企业为提高产品质量，开展了“质量提升月”活动，活动后再抽样检测，产品质量指标值X近似满足X～N（218，140}），则“质量提升月”活动后的质量指标值的均值比活动前大约提升了多少？

从某企业生产的这种产品中抽取200件，检测后得到如下的频率分布直方图：

（Ⅰ）根据以上抽样调查数据，能否认为该企业生产的这种产品符合“一、二等品至少要占全部产品90%”的规定？

（Ⅱ）在样本中，按产品等极用分层抽样的方法抽取8件，再从这8件产品中随机抽取4件，求抽取的4件产品中，一、二、三等品都有的概率；

（III）该企业为提高产品质量，开展了“质量提升月”活动，活动后再抽样检测，产品质量指标值X近似满足X～N（218，140}），则“质量提升月”活动后的质量指标值的均值比活动前大约提升了多少？

假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下短文。文中共有10处语言错误，每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。

增加：在缺词处加一个漏词符号（∧），并在其下面写出该加的词。

删除：把多余的词用斜线（＼）划掉。

修改：在错的词下画一横线，并在该词下面写出修改后的词。

注意：1). 每处错误及其修改均仅限一词；

2). 只允许修改10处，多者（从第11处起）不计分。

    A city, whether big and small, should be clean. Only when we live in a clean city we live a happy life. As we know, a clean city, that disease may be reduced and people's health may be better, are good both for our mind and body. No one believes people lived in a dirty city with waste everywhere can live happy. However, for more and more people moved into our city, it is not easy to keep our city clean. Beside, some factories will pour waste into the air, the river and onto the ground, making it is hard to keep our city clean. To make our city the better place to live in, we still have a lot to do.

阅读理解

    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.