精品一区二区免费在线观看_国产精品久久久久久av福利软件_97成人精品区在线播放_国内成人精品一区

Eating Chocolate Can Make You Smarter

     Chocolate lovers know that eating chocolate makes them happy．Now it turns out that eating chocolate may also make them smarter．

     Dr．Bryan Raudenbush recently made a study to see how eating chocolate affects people’s brains．The U．S．researcher knew that chocolate contained several stimulants(興奮劑)．But he wasn’t sure how those stimulants actually affected chocolate eaters．

    To find out，Raudenbush had a group of volunteers eat 85grams of milk chocolate．He asked another group to eat no chocolate at all．After l 5 minutes，he tested their memory and their ability to solve problems．

    The group that ate milk chocolate had higher scores．They were able to remember more words and pictures than the group that did not eat chocolate．Raudenbush concluded(得出結(jié)論) that the stimulants in chocolate increased mental(精神的)alertness(靈敏度)．

    Of course，eating chocolate doesn’t guarantee(保證)you’ll pass every test．You’ll still need to study hard!

1．Many people like eating chocolate because it can make them      ．

A．a(chǎn)nnoyed           B．unhappy          C．pleased           D．funny

2．The American researcher knew that       ．

  A．chocolate was a kind of stimulant

  B．there were some stimulants in chocolate

  C．chocolate contained many objects in it but not stimulants

  D．many people loved to eat it because of its stimulants

3．Why did Raudenbush ask a group of volunteers to eat chocolate?

  A．Because he thought it was exciting．

  B．Because he wasn’t sure how many people eat chocolate．

   C．Because his American friend asked him to do so．

   D．Because he wanted to know how stimulants affected the eaters of chocolate．

4．The result of the test is that       ．

   A．the stimulants in chocolate increased mental alertness．

   B．the group that ate chocolate had higher scores than the group that didn't eat

   C．one group ate chocolate but another didn’t eat it．

   D．Nothing happened to the groups．

5．If you want to pass every exam，        ．

   A．you will just eat enough chocolate

   B．you will ask the expert to have a chocolate test

   C．you will still need to study hard

D．you needn’t go to school

閱讀短文，根據(jù)所給的首字母完成單詞。

Chocolate lovers know that eating chocolate makes them happy. Now they may a__1.____ become smarter by eating chocolate. Scientists let a group of people e__2.___ 85 grams of milk chocolate and asked a__3._____ group to eat no chocolate at all. After 15 minutes, the g__4.___ that ate chocolate were able to remember m__5.___ words and p___6.___ than the group that did not eat chocolate. They believe that s___7.___ in chocolate can make people smarter. Of course, e__8.___ chocolate doesn’t guarantee(保證) you’ll p__9.__ every test. You’ll s__10.___ need to study hard.