A new study has found that it may be possible to train people to be more intelligent，increasing the brainpower they had at birth.
　　Until now，it has been widely assumed that the kind of mental ability that allows us to solve new problems without having any relevant previous experience—what psychologists call fluid intelligence—is innate and cannot be taught（though people can raise their grades on tests of it by practicing）.
　　But in the new study，researchers describe a method for improving this skill，along with experiments to prove it works.
　　The key, researchers found, was carefully structured training in working memory—the kind that allows memorization of a telephone number just long enough to dial it. This type of memory is closely related to fluid intelligence，so the researchers reasoned that improving it might lead to improvements in fluid intelligence.
　　First they measured fluid intelligence of volunteers using standard tests. Then they trained each in a complicated memory task—the child’s card game，in which they had to recall a card they saw and heard. During the course, they needed to ignore irrelevant items，monitor ongoing performance，manage two tasks at the same time and connect related items to one another in space and time.
　　The four groups experienced a half-hour of training daily for 8，12，17 and 19 days，respectively. To make sure they were not just improving their test-taking skills，the researchers compared them with control groups that took the tests without the training.
　　The results, published Monday in The Proceedings of the National Academy of Sciences，were striking. Improvement in the trained groups was a lot greater. Moreover，the longer they trained, the higher their scores were. All performers，from the weakest to the strongest，showed significant improvement.
　　“Our results show you can increase your intelligence with proper training.”said Dr Jaeggi, a co-author of the paper.“No one knows how long the gains will last after training stops，”he added，“and the experiment’s design did not allow the researchers to determine whether more training would continue to produce further gains.”
67．The researchers thought the key to improving the intelligence was ______________.
A．memorizing telephone numbers
B．improving working memory
C．training in concentration
D．recalling a card
68．The following aspects of the training help increase intelligence EXCEPT___________.
A．ignoring irrelevant items
B．monitoring ongoing performance
C．managing two tasks at the same time
D．using previous experience
69．When the experiment was conducted，the researchers______________.
A．trained the four groups for the same period of time
B．only made comparisons between the four groups
C．compared the four groups with control groups
D．trained the four groups together
70．By writing the article，the writer intends to ______________.
A．inform the readers of a new study
B．call on people to be trained to increase intelligence
C．prove one’s born brainpower can be improved
D．tell people the improved intelligence will last forever

We now think of chocolate as sweet, but once it was bitter. We think of it as a candy, but once it was a medicine. Today, chocolate can be a hot drink, a frozen dessert, or just a snack. Sometimes it’s an ingredient(配料) in the main course of a meal. Mexicans make a hot chocolate sauce called mole and pour it over chicken. The Mexicans also eat chocolate with spices like chili peppers.

Chocolate is a product of the tropical cacao tree. The beans taste so bitter that even the monkeys say “Ugh!” and run away. Workers must first dry and then roast the beans. This removes the bitter taste.

The word “chocolate” comes from a Mayan word. The Mayas were an ancient people who once lived in Mexico. They valued the cacao tree. Some used the beans for money, while others crushed them to make a drink.

When the Spaniards came to Mexico in the sixteenth century, they started drinking cacao too. Because the drink was strong and bitter, they thought it was a medicine. No one had the idea of adding sugar. The Spaniards took some beans back to Europe and opened cafes. Wealthy people drank cacao and said it was good for the digestion.

In the 1800s, the owner of a chocolate factory in England discovered that sugar removed the bitter taste of cacao. It quickly became a cheap and popular drink. Soon afterwards, a factory made the first solid block of sweetened chocolate. Later on, another factory mixed milk and chocolate together. People liked the taste of milk chocolate even better.

Besides the chocolate candy bar, one of the most popular American snacks is the chocolate chip cookie. Favorite desserts are chocolate cream pie and, of course, an ice cream sundae with hot fudge sauce.

1.It was ________that discovered sugar could remove the bitter taste of cacao.

2.According to the passage which of the following statements is true?

3.The Spaniards think that cacao was a medicine because________

4.Which is the right time order of the events regarding chocolate?

a. Chocolate became a cheap and popular drink in England.

b. A factory made the first solid block of sweetened chocolate.

c. The Spaniards started drinking cacao.

d. It was found that sugar removed the bitter taste of cacao.

e. A factory mixed milk and chocolate together.

5.It can be inferred from the passage that ________.

Captain Goodfellow
Do your children enjoy interesting stories, funny games, and exciting dances? Captain Goodfellow will be ready to teach all these things to children of all ages at the City Theatres on Saturday morning at 10:00 Free.
Walking Tour of the Town
Forget your worries on Saturday morning. Take a beautiful walk and learn about local history. Meet at the front entrance of City Hall at 9:30. Wear comfortable shoes!
Films at the Museum
Two European films will be shown on Saturday afternoon at the Museum Theatre. See Broken Window at 1:30. The workers will be at 3:45. For further information, call 4987898. International Picnic
Are you tired of eating the same kind of food every day? Come to Central Park on Saturday and enjoy food from all over the world. Delicious and not expensive. Noon to 5:00 p.m.
Take me out to the Ballgame
It’s October, and tonight is your last chance to see the Redbirds this year. Get your tickets
at the gate. It might be cold… don’t forget sweaters and jackets.
Do you want to hear “The Zoo”? 　　
“The Zoo”, a popular rock group from Australia, will give their first US. Concert tomorrow night at 8 Rose Hall, City College.
【小题1】You can probably eat Chinese, Italian and Arab food _________.
A. at Central Park on Saturday                            B. at the front entrance of City Hall
  at the ballgame                                     D. at 5:00 p.m.
【小题2】If you are going on the Walking Tour, don’t forget _________.
A. your beautiful walk                                 B. your comfortable shoes
  your worries                                               D. your learning about local history
【小题3】The Redbirds ballgame _________.
A. is in the afternoon              B. is at the gate      might be cold         D. is outside
【小题4】Which of the following is NOT true?
A. “The Zoo” is an Australian rock group.
B. “The Zoo” are going to meet their American audience for the last time.
  “The Zoo” will appear at 8:00 p.m.
D. “The Zoo” will perform in front of college students.   

Please get someone _____ the washing machine. I want to get it _____ as soon as possible.

　　A. to repair； to be repaired　　　　　B. repair； repaired

　　C. to repair； be repaired 　　　　　　D. to repair； repaired

--- Thank you for your CD-ROM. I’ll return it as soon as possible.

  　--- ______. I’ve got another one to spare.

  　A. No problem                 B. No hurry

  　C. Nothing much               D. Be careful