A study published in September suggests there is a surprising way to get people to avoid unhealthy foods: change their memories. Scientist Elizabeth Loftus of the University of California at Irvine asked volunteers to answer some questions on their personalities (个性) and food experiences. “One week later,” Loftus says, “we told those people we'd fed their answers into our smart computer and it came up with an account of their early childhood experiences.” Some accounts included one key additional detail (细节): “You got sick after eating strawberry ice-cream.” The researchers then changed this detail into a manufactured (人为促生的) memory through leading questions—Who were you with? How did you feel? By the end of the study, up to 41% of those given a false memory believed strawberry ice-cream once made them sick, and many said they'd avoid eating it.

    When Loftus published her findings, she started getting calls from people begging her to make them remember hating chocolate or French fries. Unfortunately, it's not that easy. False memories appear to work only for foods you don't eat on a regular basis. But most important, it is likely that false memories can be implanted (灌输) only in people who are unaware of the mental control. And lying to a patient is immoral, even if a doctor believes it's for the patient's benefit.

    Loftus says there's nothing to stop parents from trying it with their overweight children. “I say, wake up—parents have been lying about Father Christmas for years, and nobody seems to mind. If they can prevent diseases caused by fatness and all the other problems that come with that, you might think that's a more moral lie. Decide that for yourself.”

72. Why did Loftus ask the volunteers to answer some questions?

    A. To improve her computer program.           B. To find out their attitudes towards food.

    C. To find out details she can make use of             D. To predict what food they'll like in the future.

73. What did Loftus find out from her research?

    A. People believe what the computer tells them.

    B. People can be led to believe in something false.

    C. People tend to forget their childhood experiences.

    D. People are not always aware of their personalities.

74. According to the study, people may stop having a certain food if they ________.

A. learn it is harmful for health                        

B. lie to themselves that they don't want it

    C. are willing to let doctors control their minds

    D. think they once had a bad experience of eating it

75. What is the biggest concern with the method?

    A. Whether it is moral.                                B. Who it is best for.

    C. When it is effective.                                D. How it should be used.

     A new study suggests that the more teenagers watch television, the more likely they are to develop depression as young adults.

     The researchers used a national long-term survey of adolescent（青少年的）health to investigate (调查)the relationship between media use and depression. They based their findings on more than four thousand adolescents who were not depressed when the survey began in 2000.

     As part of the survey, the young people were asked how many hours of television or videos they watched daily. They were also asked how often they played computer games and listened to the radio. Media use totaled an average of five and one-half hours a day. More than two hours of that was spent watching TV.

      Seven years later, in 2007, more than seven percent of the young people had signs of depression. The average age at that time was twenty-one.

      The researchers say they did not find any such relationship with the use of other media such as movies, video games or radio, etc. But the study did find that every extra hour of television meant an eight percent increase in the chances of developing signs of depression. Young men were more likely than young women to develop depression given the same amount of media use.

      The study didn't explore if watching TV causes depression. But one possibility is that it was taking time away from activities that could help prevent depression.

      Last December, the journal Social Indicators Research published a study of activities that help lead to happy lives. Sociologists from the University of Maryland found that people who describe themselves as happy spend less time watching television than unhappy people. The study found that happy people are more likely to he socially active, to read, attend religious services and to vote.

72. The best title for this passage should be____________.

     A. Teens, Television and Depression

     B. Men Develop Depression Easier than Women

     C. Media Use is Harmful to Adolescents

     D. Take Great care of Teenager's depression

73. The result of the research seems to prove______________.

    A. teenagers are more likely to develop depression than adults

    B. other media uses do no harm to adolescents

    C. TV probably causes teenagers to grow up with depression

    D. those who watch no TV will not develop depression

74. We can learn from the survey that of all the media use

    A. computer games are teenagers' favorite

    B. most teenagers prefer to listen to the radio

    C. teenagers enjoy watching TV very much

    D. newspaper is not included in the survey

75. We can conclude that a teenager should _____

    A. play more video games instead of watching TV

    B. be active in taking part in outdoor activities

    C. be more active in watching educational TV programmers

    D. attend religious services and care for politics

     A new study suggests that the more teenagers watch television, the more likely they are to develop depression as young adults.

     The researchers used a national long-term survey of adolescent（青少年的）health to investigate (调查)the relationship between media use and depression. They based their findings on more than four thousand adolescents who were not depressed when the survey began in 2000.

     As part of the survey, the young people were asked how many hours of television or videos they watched daily. They were also asked how often they played computer games and listened to the radio. Media use totaled an average of five and one-half hours a day. More than two hours of that was spent watching TV.

      Seven years later, in 2007, more than seven percent of the young people had signs of depression. The average age at that time was twenty-one.

      The researchers say they did not find any such relationship with the use of other media such as movies, video games or radio, etc. But the study did find that every extra hour of television meant an eight percent increase in the chances of developing signs of depression. Young men were more likely than young women to develop depression given the same amount of media use.

      The study didn't explore if watching TV causes depression. But one possibility is that it was taking time away from activities that could help prevent depression.

      Last December, the journal Social Indicators Research published a study of activities that help lead to happy lives. Sociologists from the University of Maryland found that people who describe themselves as happy spend less time watching television than unhappy people. The study found that happy people are more likely to he socially active, to read, attend religious services and to vote.

72. The best title for this passage should be____________.

     A. Teens, Television and Depression

     B. Men Develop Depression Easier than Women

     C. Media Use is Harmful to Adolescents

     D. Take Great care of Teenager's depression

73. The result of the research seems to prove______________.

    A. teenagers are more likely to develop depression than adults

    B. other media uses do no harm to adolescents

    C. TV probably causes teenagers to grow up with depression

    D. those who watch no TV will not develop depression

74. We can learn from the survey that of all the media use

    A. computer games are teenagers' favorite

    B. most teenagers prefer to listen to the radio

    C. teenagers enjoy watching TV very much

    D. newspaper is not included in the survey

75. We can conclude that a teenager should _____

    A. play more video games instead of watching TV

    B. be active in taking part in outdoor activities

    C. be more active in watching educational TV programmers

    D. attend religious services and care for politics

D

There are three separate sources of danger in supplying energy by nuclear power (原子能)

    First, the radioactive material must travel from its place of production to the power station. Although the power stations themselves are strongly built, the containers used for the transport of the materials are not. Normally, only two methods of transport are in use, namely road or rail. Unfortunately, both of these may have an effect on the general public, since they are sure to pass near, or even through, heavily populated areas.

   Second, there is the problem of waste. All nuclear power stations produce wastes that in most cases will remain radioactive for thousands of years. It is impossible to make these wastes non-radioactive, and so they must be stored in one of the inconvenient ways that scientists have invented. For example, they may be buried under the ground, or dropped into deserted mines, or sunk in the sea. However, these methods do not solve the problem, since an earthquake could easily break the containers.

   Third, there may occur the danger of a leak(泄漏) or an explosion at the power station. As with the other two dangers, this is not very likely, so it does not provide a serious objection to the nuclear program. However, it can happen.

   Separately, these three types of dangers are not a great cause for worry. Taken together, though, the probability of disaster(灾难) is extremely high.

71. Which of the following is FALSE?

   A. It is possible that a leak or an explosion occurs at a power station.

   B. It is unusual for radioactive materials to be transported across land.

   C. The containers are likely to be broken by an earthquake.

   D. Nuclear wastes remain dangerous in most cases for many years.

72. The author thinks that the ways to store nuclear wastes are ＿＿＿ .

   A. easy      B. impossible        C. reasonable      D. ineffective

73. What do we learn from the last paragraph?

   A. The power station is a safe place.

   B. The dangers of nuclear energy can be prevented.

   C. The general public are strongly against the nuclear program.

   D. By itself, none of the three dangers is very likely to cause much worry.

74. What is this passage about?

A.Uses of nuclear power.                B.Dangers from nuclear power.

C.Public anger at nuclear power.          D.Accidents caused by nuclear power.

75. As for the possible dangers of nuclear power, ______.

   A. none of them can be completely avoided

   B. effective measures have been taken to avoid them

   C. man will never be able to do anything about them

   D. one is usually the cause of another

D

BEIJING  March l  （ Reuters）  - China hailed its best ever Winter Olympics on Mon- day, crediting technology, foreign coaches and even improved language skills for the winning five gold,  two silver and four bronze medals in 'Vancouver．

       Only eight years after skater Yang Yang （A） won the  country's first Winter gold at Salt Lake City, a sweep of the women' s short track speed skating and a first figure skating  title helped China to joint seventh place in the medals table．

       "Cold Standard" read the banner headline on the front  page China Daily, while the People' s Daily led its sports page with "Vancouver historical breakthrough " ．

       "We have made an important breakthrough at these Games" Xiao Tian, deputy chef de mission of China' s largest ever Winter Games delegation, told the Xinhua news agency．

       " Actually the five - gold finish was within my expectation before we set off for the Games,but I couldn't say that at that time because I would not want to put any pressure on the ath- letes．Now I can speak out．"

       Xiao was quick to retun to the earlier subject of conversation to pessirrustic（悲观）  type,  however, when discussing the future, emphasizing the huge task the Winter Sports adnunistra-   tion faced to close the gap on their Summer counterparts, who topped the table at the 2008 Bei- jing Olympics．

       "Despite the good results at these Games, we still have a long way to go in the develop-ment of China's winter sports," he said．

       "It' s impossible for us to reach the same -level as we have done in Summer sports,  but we will try to minimize the gap as much as we can．"

       Xiao said that progress would come not through a vast expansion of the Winter sports pro- gramme but by using the best coaches, wherever they came from, and technology．

71．China regarded the Vancouver Winter Olympics as a breakthrough because___________

       A．China gained-seventh place in the medals table

       B． many people were crazy about the Vancouver．Games

       C．'Yang Yang （A） won the country's first Winter gold

       D．People's Daily thought it a historical breakthrough

72．Which contribution to China's success is not mentioned in the passage?

       A．Technology． B．Foreign coaches．C．Language skills． D．Hardworking．

73．The reason why Xiao Tian didn't speak out the five - gold finish before setting off for the Games is that___________

       A．he wanted to give us a big surprise at Vancouver

       B．he didn't want to put any stress on the athletes

       C．he didn't have an optimistic attitude to the athletes

       D． he  thought the five - gold finish was a huge task

74．Which of the following is TRUE according to the passage?

       A．The headline of China Daily is "Vancouver historical breakthrough"

       B．The results in Winter Olympic8 are as good as those in Summer Olympics:

       C．We will try to narrow the gap between the Winter and Summer Sports．

       D．It's easy for us to reach the same level as we have done in Summer sports．

75．What' s the main idea of this passage?

       A．China hails Winter Games 'breakthrough  at Vancouver．

       B．A first figure skating title helped China succeed．

       C．Cluna swept the women's short track speed skating．

       D．Using the best coaches is important for China Winter Games．