题目

Your brain isn’t a muscle, but you can treat it like one Many people focus on physical fitness, but few know that brain fitness is also something you can work on. In fact, you can exercise your brain as often as you do to your arms or legs-and the results can be positive and empowering. To improve your brain, you can’t simply repeat the same exercises over and over. Just as lifting a two-pound weight will stop challenging you, so will repetitive exercises such as crosswords or Sudoku. Once you master easy exercises, you must move on to harder ones in order to push your brain-like your muscles-to a new level. The science behind brain training Scientists once believed that your mental abilities were fixed in adulthood. Since studies have shown just the opposite, millions of people around the world have adopted the new practice of brain training. The most popular of these brain training products is made by the San Francisco-based Lumosity. Lumosity’s scientists with an experienced team of game designers have developed a fun，effective online brain training program that measures, tracks, and adapts to your progress, so you’ll always be challenged. Promising studies on the effects of brain training In a 2013 Stanford study, a treatment group of 21 breast cancer survivors used 12 weeks of Lumosity training to work on processing speed, mental flexibility, and working memory tasks. On average, those who trained improved on tests of these abilities, compared to a group that did not train with Lumosity. There is even some evidence suggesting that Lumosity may be beneficial to normal, healthy adults. In a 2011 study by Lumosity and San Francisco State University researchers. 13 people who trained over 5 weeks improved working memory scores by 10％and attention scores by 20％. Brain training is designed to meet real-life needs The design of brain training is targeted at real-life benefits instead of improving game scores. Better attention, for example, can mean greater focus in the classroom or at an important business meeting. With improved processing speed, you might react and adapt faster to the demands of a busy life. And a better memory could mean stronger, longer relationships with the people closest to you. 21. We can learn from the passage that _________.  A. brain training speeds up the recovery of breast cancer B. your brain is like a muscle because it gives you power C. people’s mental abilities can’t develop after they grow up D. Lumosity can measure, track and suit your level as you improve 22. Which skill may brain training not improve?    A. Better attention.    C. Better writing skills. B. A better memory. D. Higher processing speed. 23. What can we infer from the passage? A. People should care more about physical health instead of mental health. B. Brain training has been proved effective through scientific researches. C. A bad memory is the only reason for weak relationships with people. D. Playing online games is the best way of brain training. 24. What’s the best title for the passage?    A. Brain Training Makes a Difference    C. Lumosity, Your Best Choice B. Train Your Brain like a Muscle D. How to Train Your Brain 答案：    假定英语课上老师要求同桌之间交换修改作文，请你修改你同学写的以下作文。文中共有10处语言错误，每句中最多有两处。错误涉及一个单词的增加、删除或修改。     增加: 在缺词处加一个漏字符号 (∧), 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: 在错的词下划一横线，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。 I like eating fruit and vegetables what are of great benefit to our healthy. Not only do they prevent us from falling into ill, but they help us lose weight. I used to hate vegetables, but follow the doctor’s advice, I gradually kicked the bad habit. Just as an old saying going, “An apple a day keeps the doctor away”. However, there are still many children dislike fruit and vegetables. On contrary, influenced by this or that kind of advertisement, many were crazy about junk food. Consequently, they become weaker and weaker instead of getting strong. In my opinion, we must take action to change them.

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