单选题{{B}}Part B{{/B}} In the following article some paragraphs have
been removed.For Questions 66~70,choose the most suitable paragraph from the
list A~F to fit into each of the numbered gaps.There is One paragraph which does
not fit in any ofthe gaps.Mark your answers on {{B}}ANSWER SHEET 1.{{/B}}
Supermarket shoppers have never been more spoilt for
choice.But just when we thought traditional systems of selective farming had
created the most tempting array of foods money can buy,we are now being
presented with the prospect of genetically created strains of
cabbages,onion,tomato,potato and apple. It may not tickle the
fancy of food purists but it fires the imagination of scientists.Last week they
discovered that the classic Parisian mushroom contains just the properties
that,when genetically mixed with a wild strain of mushroom from the Sonora
desert in California,could help it grow en masse while at the same time
providing it with the resilience of the wild strain. 66.______
“We have found a way of increasing the success rate from one to
90 per cent.” This is just one of the many products
that,according to skeptics,are creating a generation of“Frankenfoods”.The first
such food that may be consumed on a wide scale is a tomato which has been
genetically manipulated so that it does not soften as it ripens.
67.______ Critics say that the new tomato—which cost $25
million to research—is designed to stay on supermarket shelves for longer.It has
a ten-day life span. Not surprisingly,every-hungry US is
leading the search for these forbidden fruit.By changing the genes of a
grapefruit.a grower from Texas has created a sweet,red,thin-skinned grapefruit
expected to sell at a premium over its California and Florida competitors.
For chip fanatics who want to watch their waist-lines,new
high-starch,low-moisture potatoes that absorb less fat when fried have been
created,thanks to a gene from intestinal bacteria. The
scientists behind such new food argue that genetic engineering is simply an
extension of animal and plant breeding methods and that by broadening the scope
of the genetic changes that can be made,sources of food are increased.
Accordingly,they argue,this does not inherently lead to foods that are less safe
than those developed by conventional techniques.But if desirable genes are
swapped irrespective of species barriers,could things spiral out of
control?“Knowledge is not toxic,”said Mark Cantley,head of the biotechnology
unit at the Organisation for Economic Co-operation and Development.“It has given
us a far greater understanding of how living systems work at a molecular level
and there is no reason for people to think that scientists and farmers should
use that knowledge to do risky things.” Clearly,financial
incentive lies behind the development of these bigger,more productive foods.But
we may have only ourselves to blame.In the early period of mass food
commerce,food varieties were developed by traditional methods of selective
breeding to suit the local palate.But as suppliers started to select and
preserve plant variants that had larger fruit,consumer expectations rose,leading
to the development of the desirable clones.Still,traditionalists and gourmets in
Europe are fighting their development. 68.______
Even in the pre-packaged US.where the slow-softening tomato will soon be
reaching supermarkets,1,500 American chefs have lent their support to the Pure
Food Campaign which calls for the international boycott of genetically
engineered foods until more is known about the consequences of the technology
and reliable controls have been introduced. In the short
term,much of the technology remains untested and in the long term the
consequences for human bi ology are unknown.Questions have arisen over whether
new proteins in genetically modified food could cause allergies in some people.
69.______ Then there are the vegetarians who
may be consuming animal non-vegetable proteins in what they think is a common
tomato,or the practicing Jew who unknowingly consumes a fruit that has been
enhanced with a pig's gene.As yet,producers are under no obligation to
label“transgenetic”products. Environmentalists worry that
new,genetically engineered plants may damage natural environment.A genetically
engineered pest-resistant strain of plant that contacts with a native strain,for
example,could turn them into virulent weeds beyond chemical control.
Animal welfare groups worry about the quality of life of farm animals
manipulated so that they produce more meat,milk,and eggs but which may suffer
physical damage in the process. 70.______ Many
of these fears spring from ignorance.And although it is hard to separate the
paranoia from the benefits,the fact remains that genetic engineering offers ways
of solving serious medical and agricultural problems. A.Western
farmers have already bred cattle with more muscle than a skeleton can carry.
B.Supporters say the tomato,unsurprisingly called Flavr
Savr,will taste better because it will be able to mature on the branch longer.
C.Consumer opposition means that there are genetically
manipulated foods on the German markets,and the Norwegian government has
recently put research into genetically engineered foods on hold.
D.For example,if a com gene is introduced into a wheat gene for pest
resistance,will those who are allergic to corn then be allergic to wheat?
E.“Mushrooms in the past were almost impossible to cross,”says
Philippe Callac,one of the three scientists working on the mushroom.
F.Genetic engineering will interfere with the balance of nature.
单选题
Questions 17~20 are based on the
following talk.
单选题It can be concluded from the last paragraph that
单选题{{B}}Part A{{/B}} Read the following texts and answer the
questions which accompany them by choosing A, B, C or D. Mark your answers on
ANSWER SHEET 1.
Text 1
If you have ever been in a school play or even made believe you were a
doctor, a detective, or a space traveller, you know the enjoyment that acting
brings. Almost all of us have some wish to play the part of someone, or
something else. Historical records indicate that this occupation is as old as
civilization itself. In the ancient world, acting was often
associated with religious ceremonies and other special occasions. As far back as
2200 B.C., trained Chinese actors performed ceremonial dances in costume and
makeup at harvest festivals. It is believed that this was the first step in the
development of acting. To the dance was gradually added pantomime — the
imitation of movements and gestures — as well as the wearing of masks, the
singing of chants, and finally the use of dialogue (speech).
While acting was coming into its own in the ancient Chinese classical
theater, it was doing the same in the western world in Greece. From about 500
B.C. on, acting became a highly specialized art in Greece. Greek actors,
however, still wore masks, and their motions were largely fixed by costume.
Consequently, they had little opportunity to demonstrate their individual
personalities. Modern acting, by contrast, gives the individual
actor great opportunity to develop his or her personal talents for serious,
comic, or musical drama. The names, faces, and styles of famous movie actors are
known worldwide. Broadway and television provide other stages on which actors
can display their talent. A special form of acting takes place in radio drama,
which was highly popular before television. In radio drama the actors face a
unique challenge. They are unseen by their audience. So they must rely on voice
alone to make their characters real to the listeners. Acting is
not, as many people think, a quick, easy road to fame and riches. Only forty
percent of Broadway actors are employed, most of them for only part of the year.
Those who become stars need not only talent but determination. They must not be
easily discouraged. Otherwise they might give up before the opportunity for
stardom presents itself.
单选题{{I}} Questions 14 to 16 are based on a passage about supermarkets. You now have 15 seconds to read Questions 14 to 16.{{/I}}
单选题______ refers to the phenomenon that words of different meanings have the same form. [A] Polysemy [B] Synonymy [C] Homonymy [D] Hyponymy
单选题War may be a natural expression of biological instincts and drives toward aggression in the human species. Natural impulses of anger, hostility, and territoriality are expressed through acts of violence. These are all qualities that humans share with animals. Aggression is a kind of innate survival mechanism, an instinct for self-preservation, that allows animals to defend themselves from threats to their existence. But, on the other hand, human violence shows evidence of being a learned behavior. In the case of human aggression, violence cannot be simply reduced to an instinct. The many expressions of human violence are always conditioned by social conventions that give shape to aggressive behavior. In human societies violence has a social function: It is a strategy for creating or destroying forms of social order. Religious traditions have taken a leading role in directing the powers of violence. We will look at the ritual and ethical patterns within which human violence has been directed.
The violence within a society is controlled through institutions of law. The more developed a legal system becomes, the more society takes responsibility for the discovery, control, and punishment of violent acts. In most tribal societies the only means to deal with an act of violence is revenge. Each family group may have the responsibility for personally carrying out judgment and punishment upon the person who committed the offense. But in legal systems, the responsibility for revenge becomes depersonalized and diffused. The society assumes the responsibility for protecting individuals from violence. In cases where they cannot be protected, the society is responsible for imposing punishment. In a state controlled legal system, individuals are removed from the cycle of revenge motivated by acts of violence, and the state assumes responsibility for their protection.
The other side of a state legal apparatus is a state military apparatus. While the one protects the individual from violence, the other, sacrifices the individual to violence in the interests of the state. In war the state affirms its supreme power over the individuals within its own borders. War is not simply a trial by combat to settle disputes between states; it is the moment when the state makes its most powerful demands upon its people for their commitment, ''allegiance'', and supreme, sacrifice. Times of war test a community''s deepest religious and ethical commitments.
单选题Questions 11 to 13 are based on the following talk on hygiene. You now have 15 seconds to read Questions 11 to 13.
单选题It can be inferred from the last paragraph that
单选题
{{B}} Questions 11 to 13 are based on the
following talk on organic fish. You now have 15 seconds to read Questions 11 to
13.{{/B}}
单选题Heat is transferred from the tropics to the poles
单选题Whatisthemaintopicofthislecture?A.Bicyclesandcars.B.Buildingcodes.C.Energyconservation.D.Newhousingconstruction.
单选题{{B}}Part A{{/B}} Read the following texts answer the questions
accompany them by choosing A, B, C or D. Mark your answers on {{B}}ANSWER SHEET
1.{{/B}}{{B}}Text 1{{/B}}
Anything, if it concerns all nations in
the world, we need standards to regulatate it. Space flight and
air travel would shock time travelers from the mid-19th century. People
considered such thing impossible back again: But when it comes to that gem of
late 20th century technology, the Internet, the time travelers might well say:"
Been there. Done that." They have the masons to say
so. Both system grew out of the cutting-edge science of their
time. The telegraph's land lines, underwater cables, and clicking things
reflected the 19th century's research in electromagnet- ism. The Internet's
computers and high-speed connections reflect 20th century, and material
technology. But, while small devices make a global network
possible, it takes human cooperation to make it happen. To do so, nations
negotiated these standards through ITU—the International Telegraph Union—a
century and a half ago. Consider a couple of technical
parallels. Telegrams were sent from one station to the next, where they were
received and retransmitted until they reached their destination. Stations along
the way were owned by different entities, including national governments.
Internet date is sent from one serve computer to another that receives and
retransmits it until it reaches its destination. Again the computers have a
variety of owners. Telegraph messages were encoded in dots and dashes. Internet
date is encoded in ones and zeros. Then there's the social
impact. The Internet is changing the way we do business and communicate. It
makes possible virtual communities for individuals scattered around the planet
who share mutual interests. Yet important as this may turn out to be, it is
affecting a world that was already well connected by radio, television, and
other telecommunications. The Associated Press, Reuters, and other news services
would have spread the bombing of Yugoslavia quickly without the Internet. In
this respect, the global telegraph network was truly revolutionary. The
unprecedented availability of global news in real time gave birth to the
Associated Press and Reuters news services. It gave a global perspective to
newspapers that had focused on local affairs. A provincialism that geographical
isolation had forced on people for millennia was gone forever.
As the experience of the past century and a half has shown, the standards
set up by ITU are not only necessary, but also workable. Therefore, in today's
world, while the Internet is playing an ever more important role in our life, we
also need standards, and that is through the same ITU—now called the
International Telecommunication Union.
单选题Radio, TV and the press are criticized here for ______.
单选题Before a big exam, a sound night"s sleep will do you better than poring over textbooks. That, at least, is the folk wisdom. And science, in the form of behavioral psychology, supports that wisdom. But such behavioral studies cannot distinguish between two competing theories of why sleep is good for the memory. One says that sleep is when permanent memories form. The other says that they are actually formed during the day, but then "edited" at night, to flush away what is superfluous.
To tell the difference, it is necessary to look into the brain of a sleeping person, and that is hard. But after a decade of painstaking work, a team led by Pierre Maquet at Liege University in Belgium has managed to do it. The particular stage of sleep in which the Belgian group is interested is rapid eye movement (REM) sleep, when brain and body are active, heart rate and blood pressure increase, the eyes move back and forth behind the eyelids as I watching a movie, and brainwave traces resemble those of wakefulness. It is during this period of sleep that people are most likely to relive events of the previous day in dreams.
Dr. Maquet used an electronic device called PET to study the brains of people as they practiced a task during the day, and as they slept during the following night. The task required them to press a button as fast as possible, in response to a light coming on in one of six positions. As they learnt how to do this, their response times got faster. What they did not know was that the appearance of the lights sometimes followed a pattern--what is referred to as "artificial grammar". Yet the reductions in response time showed that they learnt faster when the pattern was present than when there was not.
What is more, those with more to learn (i. e. the "grammar", as well as the mechanical task of pushing the button) have more active brains. The "editing" theory would not predict that, since the number of irrelevant stimuli would be the same in each case. And to eliminate any doubts that the experimental subjects were learning as opposed to unlearning, their response times when they woke up were even quicker than when they went to sleep.
The team, therefore, concluded that the nerve connections involved in memory are reinforced through reactivation during REM sleep, particularly if the brain detects an inherent structure in the material being learnt. So now, on the eve of that crucial test, maths students can sleep soundly in the knowledge that what they will remember the next day are the basic rules of algebra and not the incoherent talk from the radio next door.
单选题 You will hear 3 conversations or talks and you must answer the
questions by choosing A, B, C or D. You will hear the recording ONLY ONCE.
{{B}} Questions 11~13 are based on the
following talk. You now have 15 seconds to read Questions
11~13.{{/B}}
单选题WhathappenedtothechildinFrederick'sexperiment?A.Thechild'sbrainwasdamaged.B.Thechilddied.C.Thechildkeptsilent.D.Thechildheardnomothertongue.
单选题 Read the following texts answer the questions accompany them by
choosing A, B, C or D. Mark your answers on ANSWER SHEET 1.{{B}}Part
A{{/B}}{{B}}Text 1{{/B}}
One theory of human evolution is that
our ancestors were semi-aquatic apes. They spent much time in water that they
lost their body hair, which makes swimming difficult. Daedalus points out that
in fact, water is a deadly environment for human beings—not by drowning; but by
chilling. Our alleged aquatic ancestors should have grown even thicker, longer
fur to minimize heat transfer. Indeed, in a maritime accident, it is worth
putting on all the clothes you can find; you will live that much longer in the
water. As for swimming—forget it. It stirs away all the body heat it
generates Sadly, many sea disasters happen so suddenly that
there is no time to look for spare clothes. So Daedalus is devising a nautical
uniform which reacts with water to form an ideal survival garment. His first
inspiration was the absorptive acrylate polymer used in bandages, and babies'
nappy. It can take up hundreds of times its weight of water, expanding into soft
jellylike stuff as it does so. In fibrous form, it can be woven into cloth.
Underclothes of this fabric would swell in water into a splendid wet-suit to
prevent heat losing. But Daedalus's suit will not merely insulate; it will
actively generate heat. He recalls the immersion batteries on aircraft
life-jackets, which use sea water to generate electricity, and power a signal
lamp. His new garment will be one large distributed battery, triggered by
immersion in water. Its electrochemistry is an interesting
challenge. At first Daedalus wanted it to generate hydrogen—perhaps enough of it
to fill a balloon and lift the wearer out of the water. But more sanely, he now
wants it to exploit the high energy for metal oxidation. A distributed zinc-air
battery, exploiting the oxygen dissolved in the water, seems best. A few hundred
grams of zinc could keep the wearer warm for hours in the coldest water.
Hydrogen generated in a side reaction might usefully inflate floating pockets in
the garment. Swollen by gas and absorbed water, the survival
suit will usefully discourage attempts to swim. Its wearer may generate a little
added heat by shivering, though this also will stir away all the body heat. Only
young babies can combat cold by passive thermogenesis. Advocates of our aquatic
origins are welcome to the uninteresting argument that their ability is a very
small remnant of our ancestral watery
metabolism.
单选题
Questions 14 to 16 are
based on a conversation between a customer and a clerk of the post office. You
now have 15 seconds to read Questions 14 to
16.
单选题{{B}}Text 2{{/B}}
Text 2 Defenders of
special protective labor legislation for women often maintain that eliminating
such laws would destroy the fruits of a century-long struggle for the protection
of women workers. Even a brief examination of the historic practice of courts
and employers would show that the fruit of such laws has been bitter; they are,
in practice, more of a curse than a blessing. Sex-defined
protective laws have often been based on stereotypical assumptions concerning
women's needs and abilities, and employers have frequently used them as legal
excuses for discriminating against women. After the Second World War, for
example, businesses and government sought to persuade women to vacate jobs in
factories, thus making room in the labor force for returning veterans. The
revival or passage of state laws limiting the daily or weekly work hours of
women conveniently accomplished this. Employers had only to declare that
overtime hours were a necessary condition of employment or promotion in their
factory, and women could be quite legally fired, refused jobs, or kept at low
wage levels, all in the name of“protecting”their health. By validating such laws
when they are challenged by lawsuits, the courts have colluded over the years in
establishing different, 1ess advantageous employment terms for women than for
men, thus reducing women's competitiveness on the job market. At the same time,
even the most well-intentioned lawmakers, courts, and employers have often been
blind to the real needs of women. The lawmakers and the courts continue to
permit employers to offer employee health insurance plans that cover all known
human medical disabilities except those relating to pregnancy and childbirth.
Finally, labor laws protecting only special groups are
often ineffective at protecting the workers who are actually in the workplace.
Some chemicals, for example, pose reproductive risks for women of childbearing
years;manufacturers using the chemicals comply with laws protecting women
against these hazards by refusing to hire them. Thus the sex-defined legislation
protects the hypothetical female worker, but has no effect whatever on the
safety of any actual employee. The health risks to male employees in such
industries cannot be negligible. since chemicals toxic enough to cause birth
defects in fetuses or sterility in women are presumably harmful to the human
metabolism. Protective laws aimed at changing production materials or techniques
in order to reduce such hazards would benefit all employees without
discriminating against any. In sum, protective labor laws
for women are discriminatory and do not meet their intended purpose. Legislators
should recognize that women are in the work force to stay, and that their
needs—good health care. a decent wage,and a safe workplace—are the needs of all
workers. Laws that ignore these facts violate women's rights for equal
protection in employment.