As you dash outdoors in the middle of winter, you might make it halfway down the block before realizing that your ears are freezing because you forgot your hat.

Now, scientists have shown that even though you’ve had an apparent memory lapse（丧失）, your brain never forgot what you should have done.

Memory works mainly by association. For example, as you try to remember where you left your keys, you might recall you last had them in the living room, which reminds you that there was an ad for soap on television, which reminds you that you need soap, and so on. And then, as you’re heading out of the door to buy soap, you remember that your keys are on the kitchen counter. Your brain knew where the keys were all along. It just took a round-about way to get there.

Now, scientists at the Salk Institute for Biological Studies are studying associative memory in monkeys to figure out just how this complicated process works.

First, the researchers trained a group of monkeys to remember arbitrary（任意的） pairs of symbols. The researchers showed the monkeys one symbol（cold weather） and then gave them the choice of two other symbols, one of which （a hat） would be associated with the first. A correct choice would earn them a sip of their favorite juice.

Most of the monkeys performed the test perfectly, but one kept making mistakes.

“We wondered what happened in the brain when the monkey made the wrong choice, although it apparently learned the right pairing of symbols,” said study leader Thomas Albright.

Albright and his team observed signals from the nerve cells in the monkey’s inferior temporal cortex （ITC）, an area of its brain used for visual pattern recognition and for storing this type of memory.

As the monkey was deciding which symbol to choose, about a quarter of the activity in the ITC was due to the choice behavior.

Meanwhile, more than half the activity was in a different group of nerve cells, which scientists believe represent the monkey’s memory of the correct symbol pairing, and surprisingly, these cells continued to work well even when the monkey chose the wrong symbol.

“In this sense, the cells ‘knew’ more than the monkeys let on in their behavior,” Albright said. “Thus, behavior may vary, but knowledge endures.”

What is the main idea of this passage?

A. Your brain remembers what you forget.

B. Activity is a round-about way to memory.  

C. Monkeys have better memory than us.

D. Your brain may forget something, but not always.

The example of the keys and soap is given to explain the relationship between _______.

A. memory and our daily life   B. memory and television ads

C. memory and association       D. memory lapse and human brain

The researchers believe the monkey that made the wrong choice ________.

A. had some trouble with its nerve system  B. failed to see the objects well

C. had the worst memory     D. also knew the correct answer

The underlined word “endures” may be best replaced by __________.

A. increases        B. remains      C. disappears       D. improves

阅读表达。(共5小题；每小题2分，共10分。)

[1]Compared to people with bad attitudes，people         are less likely to suffer from

colds．It’s possible that being positive helps the body fight il1nesses.

[2]In a previous study，people who tended to be cheerful and lively were least likely to

develop coughs and other cold symptoms．People who showed positive feelings were also less likely to mention symptoms to their doctors，even when medical tests detected those symptoms．

[3]Those findings were interesting，but they didn’t prove that a person’s attitude affects

whether he or she gets sick．Instead，it was still possible that a person’s underlying personality is what matters．

[4]Evidence suggests，for instance，that certain people are naturally more likely to be outgoing

and optimistic，with high self-esteem and a sense of control over life．This would mean that who we are，not how we feel，ultimately decides our chances of catching colds.

[5]To figure out which mattered more，personality or emotions，the researchers interviewed

193 healthy adults．The results showed that everyone in the study was equally likely to get infected．Their symptoms，however，differed depending on the types of emotions that they had reported over the previous fortnight．

[6]Among those who reported good moods and had been infected with the flu virus，for example, 28 percent developed coughs and stuffy noses．On the other hand，those symptoms struck 41 percent of people who had been less positive．

[7]Scientists argue about whether negative emotions or positive emotions have a stronger effect on how healthy we are．For now，it can’t hurt to look on the bright side more often than not !

What’s the main idea of the passage?（Please answer within 10 words）

Fill in the blank with proper words in first paragraph.（Please answer within 10 words）

Which sentence in the passage can be replaced by the following one?

But，their symptoms were closely related to the emotions they had claimed to have in the last two weeks.

Translate the underlined sentence in the third paragraph into proper Chinese．

Suppose one of your friends had got infected with the H1N1 flu，give him／her at least

three pieces of advice．（Please answer within 30 words）

It cost me a great deal, but I don’t regret           a year travelling around the world.

    A. spend                B. to spend             C. spending         D. spent

Whenever we are in ________ , we must never lose ______ , but try to think of the way out.

A. the trouble; our heart              B. troubles; hearts

C. trouble; heart                     D. trouble; our heart

Only since April 1895, when the government of the Qing Dynasty was forced to sign the

Treaty of Shimonoseki （马关条约）, _____ its own name for the area where the Diaoyu Islands _____．

           A．did Japan have; are being located           B．has Japan had; are located

           C．Japan had; are locating                    D．had Japan had; locate

The foreign expert put forward a plan at yesterday’s meeting, _____ all the people present spoke highly of.

  A. that   B. what C. which    D. when

Jack was so excited about getting a new backpack because his old one had a broken zipper(拉链) and a hole in the bottom.

Jack’s elder brother took him to buy a new backpack. There were so many cool ones. How would he ever decide? He saw blue ones—his favorite color. He saw ones with his favorite action hero on the front. And then Jack saw a backpack with a black square design. When he opened it, he saw it had a hidden, secret small bag. He liked it, which made it different from others.

“This is the one,” he said, then carried it to the check-out counter.

That evening, Jack carefully filled his new backpack with his school things. He put his special pen in the secret small bag. The next day in English class, Mr. Mack said, “Let’s write an essay about earthquakes!” Jack looked for his pen in his backpack, but he couldn’t found it! He rummaged through his desk and his pockets, but no pen.

Jack asked if anyone had seen his pen, but no one had. Mr. Mack lent him a pencil, but Jack was feeling anxious because he lost his pen. When he got home, Jack told his brother he couldn’t find his favorite pen. His brother said, “You must have put it in that secret small bag.”

Jack laughed and said, “That small bag was so secret that I forgot all about it.”

Which backpack did Jack buy?

A. A blue one.  B. One with a black square design.   C. One with an action hero.    D. A small one.

Jack decided to buy that backpack because __________.

A. it had his favorite color

B. he liked the black square design

C. the secret small bag made it special

D. his brother suggested he get that one

The underlined word “rummaged” in Paragraph 4 probably means “________”.

A. forgot to look at    B. searched really well C. turned sideways  D. threw away

When Jack realized what he had done, he thought it was ________.

A. funny    B. annoying     C. surprising   D. cool

This text mainly tells us ________.

A. a story of Jack’s old backpack

B. that Jack was studying earthquakes

C. that Jack was old enough to do shopping

D. a story of Jack’s pen and new backpack

　A few months ago, it wasn't unusual for 47-year-old Carla Toebe to spend 15 hours per day online. She'd wake up early, turn on her laptop and chat on Internet dating sites and instant-messaging programs – leaving her bed for only brief breaks. Her household bills piled up, along with the dishes and dirty laundry, but it took constant complaints from her four daughters before she realized she had a problem.

　　"I was starting to feel like my whole world was falling apart – kind of slipping into a depression," said Carla. "I knew that if I didn't get off the dating sites, I'd just keep going," detaching (使脱离) herself further from the outside world.

　　Toebe's conclusion: She felt like she was "addicted" to the Internet. She's not alone.

　　Concern about excessive Internet use isn't new. As far back as 1995, articles in medical journals and the establishment of a Pennsylvania treatment center for overusers aroused interest in the subject. But as reliance on the Web grows, there are signs that the question is getting more serious attention: Last month, a study published in CNS Spectrums claimed to be the first large-scale look at Internet overuse. The American Psychiatric Association may also consider listing Internet addiction in the next edition. And scores of online discussion boards have popped up, on which people discuss negative experiences tied to too much time on the Web.

    The new CNS Spectrums study was based on results of a nationwide telephone survey of more than 2,500 adults. Like the latest survey, this one was conducted by Stanford University researchers. About 6% of respondents reported that "their relationships suffered because of excessive Internet use." About 9% attempted to conceal "nonessential Internet use," and nearly 4% reported feeling " still occupied by the Internet when offline."

　　"The Internet problem is still in its early stage," said Maressa Orzack, a Harvard University professor. No single online activity is to blame for excessive use, he said. "They're online in chat rooms, checking e-mail, or writing blogs. The problem is not limited to porn (色情) or gambling websites.”

　　“Excessive Internet use should be defined not by the number of hours spent online but in terms of losses.”said Maressa Orzack. "If it's a loss where you're not getting to work, and family relationships are breaking down as a result, then it's too much."

　　Since the early 1990s, several clinics have been established in the U. S. to treat heavy Internet users. They include the Center for Internet Addiction Recovery and the Center for Internet Behavior.

　　The website for Orzack's center lists the following among the psychological symptoms of computer addiction:

　　● Having a sense of happiness or excitement while at the computer.

　　● Longing for more and more time at the computer.

　　● Neglect of family and friends.

　　● Feeling empty, depremssed or irritable when not at the computer.

　　● Lying to employers and family about activities.

　　● Inability to stop the activity.

　　● Problems with school or job.

　　Physical symptoms listed include dry eyes, backaches, skipping meals, poor personal hygiene (卫生) and sleep disturbances.

　　“People who struggle with Internet overuse maybe depressed or have other mood disorders.” Orzack said. When she discusses Internet habits with her patients, they often report that being online offers a "sense of belonging, and escape, excitement and fun," she said. “Some people say relief…because they find themselves so relaxed.”

　　Some parts of the Internet seem to draw people in more than others. Internet gamers spend countless hours competing in games against people from all over the world. One such game, called World of Warcraft, is cited on many sites by posters complaining of a "gaming addiction."

　　Andrew Heidrich, an education network administrator from Sacramento, plays World of Warcraft for about two to four hours every other night, but that's nothing compared with the 40 to 60 hours a week he spent playing online games when he was in college. He cut back only after a full-scale family intervention (干预), in which relatives told him he'd gained weight.

　　“There's this whole culture of competition that sucks people in with online gaming, ”said Heidrich, now a father of two. People do it at the expense of everything that was a constant in their lives." Heidrich now visits websites that discuss gaming addiction regularly “to remind myself to keep my love for online games in check”.

　　Toebe also regularly visits a site where posters discuss Internet overuse. In August, when she first realized she had a problem, she posted a message on a Yahoo Internet addiction group with the subject line:“I have an Internet Addiction.”

　　“I'm self-employed and need the Internet for my work, but I'm failing to accomplish my work, to take care of my home, to give attention to my children,”she wrote in a message sent to the group. “I have no money or insurance to get professional help; I can't even pay my loan and face losing everything.”

　　Since then, Toebe said, she has kept her promise to herself to cut back on her Internet use. "I have a boyfriend now, and I'm not interested in online dating," she said by phone last week. "It's a lot better now."

What eventually made Carla Toebe realize she was spending too much time on the Internet?

　A. Her daughter's repeated complaints.

　B. Tiredness resulting from lack of sleep.

　C. The poorly managed state of her house.

　D. The high financial costs adding up.

What is the main idea of para4?

A. A study claimed to be the first large-scale look at Internet overuse.

B. The American Psychiatric Association plans to list Internet addiction in its edition.

C. There are heated discussions about negative experiences over internet overuse.

D. There is a growing concern towards internet addiction.

According to Professor Maressa Orzack, Internet use would be considered excessive if ______.

　A. it seriously affected family relationships

　B. one visited porn websites frequently

　C. too much time was spent in chat rooms

　D. people got involved in online gambling

According to Orzack, people who struggle with heavy dependence on    

the Internet may feel ______.

　A. discouraged   B. pressured    C. depressed    D. puzzled

Andrew Heidrich now visits websites that discuss online gaming addiction to _____.

　A. improve his online gaming skills

　B. control his desire for online gaming

　C. show how good he is at online gaming

　D. exchange online gaming experience

Which of the following best describes the tone(口吻) of the passage ?

 A. Humorous      B. Ironic       C. Objective      D. Casual

In the keen competition of this international tennis tournament, she ________ won the championship.

A. privately          B. distantly          C. locally            D. narrowly

We know it is hard to make such a decision _______he has just built up the team for a year

  and the project is going through the important stage now．

  A．that             B．as                C．when             D before