15．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 held in London，students who bring water into exams may improve their grades by up to 10%．
Scientists in UK did the study on 448students．The students were studying for different degrees  at the University of East London．Only 25% of them entered the exam hall with water．
Scientists then compared their exam results with their normal schoolwork grades．They found that all those who had brought water with them got better grades by 2% to10%．
Scientists also predicted the students'scores according to their normal schoolwork．They wrote down their possible scores on paper before exams．
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 reduce anxiety （焦慮），which has a bad effect on exam performances．
"Whatever the explanation is，it is clear that students should try hard to stay hydrated （含水的） with water during exams，"one of the scientists said．
So next time，when you are going to have a big exam，try bringing a bottle of water with you．It may help you pass the exam!
81．According to the study，students who bring water to exams mayA．
A．get better scores
B．feel worried in exams
C．be smarter than others
82．How many students brought water during the exam in the study by the UK scientists？B
A.25．B.112．C.448．
83．Having enough water in examsB．
A．makes the students smarter
B．helps the students stay calm
C．improves the students'scores by 20%
84．The underlined word"predicted"means"A"．
A．預(yù)測(cè)       B．提高        C．更正
85．What's the best title for the passage？C
A．The more water，the higher scores
B．Anxiety in the exams
C．Water helps in exams．

分析 當(dāng)你參加考試的時(shí)候你需要隨身帶什么呢？鋼筆、鉛筆、橡皮、尺子…不要忘記帶瓶水！
據(jù)在倫敦舉行的英國(guó)心理研究協(xié)會(huì)年度會(huì)議的一項(xiàng)研究，帶水參加考試的學(xué)生可以把他們的成績(jī)提高10%．
在英國(guó)東倫敦大學(xué)和威斯敏斯特大學(xué)的科學(xué)家，對(duì)448名學(xué)生做了一項(xiàng)研究．這些學(xué)生正在東倫敦大學(xué)攻讀不同的學(xué)歷，他們中只有25%的人帶喝的東西進(jìn)入考試大廳．
然后科學(xué)家們把他們的考試成績(jī)與正常學(xué)業(yè)成績(jī)相對(duì)比，他們發(fā)現(xiàn)那些所有隨身帶喝的學(xué)生獲得了高出2%-10%的更好的成績(jī)．
為什么喝水能提高考試成績(jī)，目前尚不清楚．但科學(xué)家們說(shuō)，在我們的身體有足夠的水分，不會(huì)感覺(jué)口渴能有助于大腦的運(yùn)轉(zhuǎn)．喝水也可能減少對(duì)考試有不利影響的焦慮．
"不管如何解釋?zhuān)苊黠@，學(xué)生應(yīng)該在考試期間努力處在一種不缺水的狀態(tài)．"他說(shuō)．
下一次，當(dāng)你要進(jìn)行一次大的考試時(shí)，試著隨身帶一瓶水．它可能幫助你通過(guò)考試！

解答 81-85 ABBAC
81．A．細(xì)節(jié)題，根據(jù)第二段students who bring water into exams may improve their grades by up to 10%．帶水參加考試的學(xué)生可以把他們的成績(jī)提高10%．故選A．
82．B 分析計(jì)算題．根據(jù)the study on 448 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．計(jì)算可知，448×25%=112（人），故選B．
83．B．推理題．根據(jù)第六段Drinking water may also reduce anxiety （焦慮），which has a bad effect on exam performances．喝水也可能減少對(duì)考試有不利影響的焦慮，可知喝足夠的水能讓學(xué)生保持平靜，故選B．
84．A．詞意理解題，根據(jù)后文They wrote down their possible scores on paper before exams．他們寫(xiě)下了可能的成績(jī)，可知這里是在預(yù)測(cè)，故答案是A．
85．C．標(biāo)題判斷題．根據(jù)第二段According to a study held in London，students who bring water into exams may improve their grades by up to 10%．帶水參加考試的學(xué)生可以把他們的成績(jī)提高10%．和最后So next time，when you are going to have a big exam，try bringing a bottle of water with you．It may help you pass the exam!試著隨身帶一瓶水．它可能幫助你通過(guò)考試！可知本文是說(shuō)考試的時(shí)候水能幫上忙，故選C．

點(diǎn)評(píng) 文章淺顯易懂，層次分明，學(xué)生很容易把握文章中心內(nèi)容．答題中注意帶著問(wèn)題閱讀短文，一般就能順利找出答題依據(jù)．對(duì)于不能直接找到根據(jù)的問(wèn)題注意聯(lián)系上下文，根據(jù)短文中心總結(jié)出正確答案．

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