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(兴奋剂)．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(得出结论) that the stimulants in chocolate increased mental(精神的)alertness(灵敏度)．

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

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

A．annoyed           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