题目
题型：期末题难度：来源：
researchers who claim that the yummy treat could improve the brain"s ability to do the most "dreadful" subject.
The study, presented at the British Psychological Society annual conference, is great news for students who
binge on(暴食) chocolate when revising for exams. For the study 30 voluhteers were asked to count backwards
in groups of three from a random number between 800 and 999 generated by a computer. The findings show
that they could do the calculations more quickly and more accurately after they had been given the cocoa drink.
However,the same was not true when the group was asked to count backwards in groups of seven, which the
researchers described as a more complex task, requiring a slightly different part of the brain. The findings also
show that the volunteers did not get as tired doing the calculations if they bad heen given the cocoa drink despite
being asked to do them over and over for an hour. The flavanols (黄烷醇) work by increasing the flow of blood
into the brain. Dark chocolate contains higher quantifies of the chemical than plain or milk chocolate. Prof.
David Kennedy at Northumbria University said that chocolate could be beneficial for mentally challenging tasks.
The researchers gave the volunteers a total of 500 mg of flavanol. Although the amount was too great to be
found naturally in the diet, researchers said that people should ensure that they have lots of flavanols. "The
more fruit and vegetables and things that are high in flavanols, the better that is for your brain in the long run."
B. delicious food improves the brain"s ability
C. maths is difficult for children to learn
D. all students like eating chocolate for exams
B. Hot drink is likely to speed up the brain"s activity.
C. The flavanols help more blood flow into the brain.
D. The flavanols are chemicals that make people relaxed.
B. Plain chocolate.
C. Milk chocolate.
D. Fruit.
B. lower doses of flavanol have no effect on the brain
C. people should eat more vegetables instead of chocolate
D. students should have enough flavanols in the daily diet
答案
核心考点
试题【阅读理解。 Giving your child a chocolate bar for him to finish his maths homework】；主要考察你对题材分类等知识点的理解。[详细]
举一反三
earthquake, there is often a great noise first. Then the earth 3 terribly; many houses 4 down. Railway
tracks break and trains go 5 lines; a great many factories are 6 ; thousands of deaths are caused, and
many more lose homes... 7 the great damage and deaths caused by the earthquake 8 , other disasters
such as fires often 9 . More buildings are destroyed and more 10 are caused.
It is well known of the 11 of a possible earthquake, and for centuries man has been making researches
on earthquakes. More than 2,000 years ago, 12 , a Chinese scientist named Zhang Heng 13 a machine
which could find out from which 14 the seismic (地震的) waves had come, and this machine is still 15
by scientists today. Now we know much more about earthquakes and 16 they happen, but we still cannot
17 exactly when and where an earthquake will happen, and cannot 18 it from happening. So earthquakes
are among the 19 disasters in the world.
No one can stop natural earthquakes. 20 , scientists can help stop earthquakes from destroying whole
cities and causing too many deaths.
| ( )1. A. common ( )2. A. real ( )3. A. moves ( )4. A. get ( )5. A. off ( )6. A. burst ( )7. A. Except ( )8. A. lonely ( )9. A. follow ( )10. A. quakes ( )11. A. information ( )12. A. as a result ( )13. A. invented ( )14. A. country ( )15. A. improved ( )16. A. where ( )17. A. speak ( )18. A. make ( )19. A. worst ( )20. A. However | B. unusual B. weak B. shakes B. put B. on B. hurt B. Besides B. later B. copy B. deaths B. questions B. in fact B. discovered B. directions B. repaired B. when B. tell B. prepare B. best B. But | C. strange C. big C. jumps C. set C. into C. destroyed C. Instead of C. themselves C. come C. difficulties C. dangers C. for example C. found C. ways C. protected C. what C. talk C. stop C. most C. And | D. familiar D. small D. breaks D. fall D. behind D. buried D. Because of D. itself D. enter D. results D. shock D. as well D. operated D. city D. used D. why D. point D. let D. fast D. So | ||||||||||||
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| One student took a box of chicken to class. Another carried on a cell-phone 1 and still another whistled loudly every time the 2 turned his back. Reform school? No, College. More and more, professors say, they are coming across 3 students in their classrooms. Many of today"s young scholars (学者) arrive late, leave 4 , talk loud or take care of personal 5 such as paying bills during class. Why are the students behaving badly? "Because they can," said a student of University of North Texas. "A lot of the time, the professors let them get 6 with it." Some educators say it is time to bring politeness back to their classrooms-and even 17 taking some of the blame for bad behavior. They say that rude students are by no means the majority but that one of them can ruin an entire 8 . People are 9 when they learn that impolite behavior is becoming more and more common in 10 education, says Dr. Gerald Amanda, a counselor at City College of San Francisco. They 11 some high school students to misbehave but think those who get to 12 will behave more politely. Dr. Amanda believes that society in 13 has become more tolerant (容忍的) of rude behavior and 14 people in power, including professors, no longer 15 standards for 16 . That leads to a growing imprudence (轻率行为) 17 some college students. "There"s a great 18 of bad behavior in the world around them, and young people see it and 19 disrespect," said Dr. Amanda, 20 that sometimes students "have no idea that they are being rude". | |||||||||||||||
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