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    What should you take in with you when you take an exam? Pen, pencil, eraser, ruler…, and don’t forget a bottle of water!
    According to a study at the British Psychological ( 心理学的) Society Annual Conference held in London, students who bring water into exams may improve their grades by up to 10 percent.
    Scientists at the University of East London and the University of Westminster, UK, did a study on 447 students. The students were studying for different degrees (学历) at the University of East London. Only 25 percent of them entered the exam hall with something to drink.
    Scientists then compared their exam results with their normal schoolwork grades. They found that all those who had brought drinks with them got better grades by between 2 and 10 percent.
    It is unclear why drinking water improves exam results. But scientists say having enough water in our bodies and not feeling thirsty could have a helpful effect on our brains. Drinking water may also cut down on anxiety ( 焦虑), which has a bad effect on exam performances, according to Chris Pawson, PhD, of the University of East London.
    “Whatever the explanation, it is clear that students should try hard to stay hydrated (含水的)with water during exams,” he said.
    So next time, when you are going to have a big exam, try bringing a bottle of water with you.Who knows – it may help you pass the exam!
    小题1:How much may the students improve their grades most if they bring water into exams?
    A．By2%. B．By8%.
    C．By10%.D．By25%.
    小题2:How many students in the study got better grades?
    A．About112 students who brought drinks or water into their exams.
    B．All the447 students who come from the University of East London.
    C．About300 students who took part in the study.
    D．About10 percent of the students who studied different subjects.
    小题3:The underlined phrase “cut down on” probably means _______.
    A．increaseB．bring
    C．reduce D．change
    小题4:According to the passage, how does water help students in exams?
    a. It is good for their brains.
    b. It makes students smarter.
    c. It helps students stay cool.
    d. It helps students stay awake.
    A．a bB．a c
    C．b cD．c d
    小题5:Where can you probably read the article?
    A．Fashion magazine.B．Text book.
    C．Travel guide.D．Newspaper.

    小题1:C
    小题2:A
    小题3:C
    小题4:B
    小题5:D

    试题分析：短文大意：这篇短文主要讲述了水对于提高学生成绩的作用，并举例进行了说明，最后建议学生在参加考试时，带一瓶水。
    小题1:细节理解题。根据短文第二段描述，可知带水参加考试的学生成绩能提高百分之十左右，故选C。
    小题2:分析计算题。根据a study on 447 students.…… Only 25 percent of them entered the exam hall with something to drink.……They found that all those who had brought drinks with them got better grades by between 2 and 10 percent.计算可知，447×25%≈112(人)，故选A。
    小题3:词义猜测题。联系下文which has a bad effect on exam performances 描述，可知喝水可能也能减少焦虑，故选C，削减，减少。
    小题4:细节理解题。根据短文倒数第三段描述，可知水对大脑有好处，也能减少焦虑，故选B。
    小题5:推理判断题。这篇短文主要讲述了水对于提高学生成绩的作用，并举例进行了说明，最后建议学生在参加考试时，带一瓶水。故可能出自一篇新闻报道，选D。
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