New technology that can " see" through clothing and detect what 's underneath can now be used to scan
crowds, making it a potentially effective tool to prevent terrorist attacks in public places.
     The Thru Vision T5000 camera picks up Terahertz rays,or T-rays, which are naturally sent out by all
objects and can pass through clothes or even walls. The camera can then detect metallic and nonmetallic
objects hidden under clothing on still or moving subjects without showing any body detail.
     While similar technology is seen at airports around the world, the T5000 is designed to be used in large,
open areas. With a range of 25 meters, the T5000 can screen people in public places, thus avoiding
bottle-necks at border crossing or security checkpoints. It also means people can be screened without
knowing it.
     The technology develops from British astronomers ' work in studying dying stars. Astronomers use T-ray
cameras to see through dust and clouds in space. The company sees uses for its camera at other sites where
political or business activities take place.
     For privacy concerns,Thru Vision Chief Executive Clive Beattie said the image produced by the camera
did not show detailed parts of the body." It's almost a shining light bulb (灯泡)." Beattie said. "You don' t see
the detail that people might be concerned about." In London' s busy Piccadilly Circus-which is already filled
with closed-circuit surveillance (监视) cameras- reaction to the new technology was mixed. Some said the
camera was going too far and violating privacy,but others said they are willing to put safety before privacy
concerns." There ' s surveillance everywhere anyway," said one commuter. "I don' t think it' s much of a
difference. I don' t care that they can see through me because they can see me anyway."
     Some experts said the privacy violation of the camera was not worth the benefit. " What we should
consider is how much we want to lose our privacy in order to obtain a sort of national security," said David
Murakami Wood, director of the Surveillance Studies network,which deals with surveillance and privacy
problems." In most cases this isn' t real security-it 's a sense of safety that has very little real effect."

1. What can we learn about T5000?

A. It can detect metallic and nonmetallic objects underneath.
B. It can see through clothing or walls by sending out T-rays.
C. It was first used to observe stars by astronomers.
D. It is widely used at airports around the world.

2. What is the most probable purpose of the new invention?

A. To improve people ' s life standard.
B. For scientific research.
C. For commercial benefits.
D. For safety reasons.

3. Which is most probably the opinion of people on using the new camera?

A. Some agree to its use as it is new technology to protect privacy.
B. Some agree to its use because safety is the most important.
C. Some don' t agree to its use because it makes no difference.
D.Some people don' t care because they know little about it.

4. What' s the main idea of the last paragraph?

A. Safety is more important than privacy.
B. T5000 is more beneficial than harmful.
C. T5000 does not really provide security.
D. It's not worth giving up privacy for safety.

     Motherhood may make women smarter and may help prevent dementia (痴呆) in old age by bathing the
brain in protective hormones (荷尔蒙), U.S. researchers reported on Thursday.
     Tests on rats show that those who raise two or more litters of pups do considerably better in tests of
memory and skills than rats who have no babies, and their brains show changes that suggest they may be
protected against diseases such as Alzheimer's (早老痴呆症). University of Richmond psychology professor
Craig Kinsley believes his findings will translate into humans.
     "Our research shows that the hormones of pregnancy (怀孕) are protecting the brain, including estrogen
(雌激素), which we know has many neuroprotective (保护神经的) effects," Kinsley said.
     "It's rat data but humans are mammals just like these animals are mammals," he added in a telephone
interview. "They go through pregnancy and hormonal changes."
     Kinsley said he hoped public health officials and researchers will look to see if having had children protects
a woman from Alzheimer's and other forms of age-related brain decline.
     "When people think about pregnancy, they think about what happens to babies and the mother from the
neck down," said Kinsley, who presented his findings to the annual meeting of the Society of Neuroscience in
Orlando, Florida.
     "They do not realize that hormones are washing on the brain. If you look at female animals that have never
gone through pregnancy, they act differently toward the young. But if she goes through pregnancy, she will
sacrifice her life for her infant-that is a great change in her behavior that showed in genetic alterations (改变)
to the brain."

1. How do scientists know "Motherhood may make women smarter"?

A. Some researchers have told them.
B. Many women say so.
C. They know it by experimenting on rats.
D. They know it through their own experience.

2. What does the phrase "litters of pups" mean in the second paragraph?

A. Baby rats.
B. Animals.
C. Old rats.
D. Grown-up rats.

3. What can protect the brain of a woman according to the passage?

A. Estrogen.
B. The hormones of pregnancy.
C. More exercise.
D. Taking care of children.

4. "It's rat data but humans are mammals just like these animals are mammals." What does
the sentence suggest?

A. The experiments on the rats have nothing to do with humans.
B. The experiments on the rats are very important for animals.
C. The experiments on the rats are much the same on humans.
D. The experiments on the rats are much the same on other animals.

     Some years ago, a Miami woman walking through an office building noticed two men standing together.
Several minutes after her leaving, the men murdered a person working in the building. The police determined
that the woman was the only witness and could possibly describe them. However, her memory of the men
proved disappointingly unclear. Several days later, psychologist Ronald Fisher was brought in to obtain a
more complete account from the woman. His interview produced a breakthrough-the woman reported a clear
picture of one of the suspects. The important information enabled the police to arrest the suspect and close
the case.
     The police asked Fisher for help because of his rich knowledge in cognitive (认知的) interview, a kind of
memory-rebuilding process. Memory researchers have found that people trying to remember a past event often
only recall part of the relevant information. Human memory is selective and it is often distorted by stress. But
a person's accurate recall of an event or understanding of a question can be improved using specific
interviewing techniques. The "cognitive interview" was developed in the late 1990s. It encourages the witness
to take an active role in recalling information rather than giving answers only to someone else's questions.
     The witness first describes what happened in his or her own words, with no interviewer interruptions. The
interviewer then goes further with specific techniques, such as having the witness tell the detail', of what
happened from different perspectives (角度).
     The cognitive interview focuses on guiding witnesses through four general recalling techniques: thinking
about physical surroundings and personal feelings that existed at the time of past events; reporting everything
that comes to mind about those events, no matter how broken it is; retelling events in a variety of time orders,
such as from beginning to end, end to beginning, forward or backward; and adopting different perspectives
while recalling events.
     Experiments with police detectives trained in this demanding interview method find that they obtain nearly
50% more information from witnesses than before training, while error rates remain about the same. It is
proved that cognitive interviews are quite important tools in improving the accuracy and completeness of
witness testimony (证词).

1. The purpose of the passage is to _____.

A. give an account of a murder case
B. help a witness to recall information in a cognitive interview
C. prove Fisher was an expert in cognitive interview
D. introduce an idea of cognitive interview

2. What is required to recall in a cognitive interview for a witness?

A. The surroundings and feelings at the time of the event.
B. The information about the event in the time order.
C. The important things that come to his or her mind.
D. The exact time at which a murder took place.

3. The key point in a cognitive interview is that _____.

A. the interview should take place outside the police station
B. the interviewer should interrupt the witness from time to time
C. the witness is encouraged to take part in recalling information
D. the witness should recall details at the scene of the event

4. The underlined word "distorted" in the passage probably means "_____."

A. changed
B. balanced
C. arranged
D. examined

     Doomed (注定失败的) beauties such as Cleopatra and Marilyn Monroe were far from alone in their
misery(痛苦, 不幸). Very attractive people tend to form partnerships that are less stable and satisfying
than those enjoyed by plain Jane.
     According to the research by Dr John Blaine of the University of Southern California, relationships
between people whose professions largely depend on their appearances, such as, models or actors, tend
to end much faster than those between lawyers, doctors or students.
     Blaine said the beautiful felt different from childhood. They are treated as special, which may create
both arrogance (傲慢) and insecurity. All too often, beauty can be used as an alternative to education.
Often they are pushed out of their class or town, told to go off and make their fortune in Hollywood or
London and, when the majority fail, they have few talents to make a living.
     Blaine added that beautiful people score poorly on the "big five"-the key factors American experts
consider when helping distressed couples. These are neuroticism (神经过敏), including anger and anxiety;
extroversion (性格外向); openness to new experiences; agreeableness; and conscientiousness, or sticking
by agreements they have made. Attractive people often see no reason to try to change until their looks start
to fade.
     Krista Sutherland of the University of California Los Angeles, said partnerships that appeared to be
perfect from the outside, such as the former "dream teams" of Nicole Kidman and Tom Cruise or Hugh
Grant and Elizabeth Hurley, where backgrounds and aspirations (抱负) are often shared, did not necessarily
lead to happiness.

1. What does the underlined sentence "Doomed beauties such as Cleopatra and Marilyn Monroe were far
     from alone in their misery" means?

A. Beautiful women always felt lonely.
B. Beautiful women were always alone.
C. Beautiful women always lived a happy life.
D. Many beautiful women didn't end up with a happy life in terms of relationship.

2. We can infer in the passage that _____.

A. The marriage of the beautiful often lasts long
B. Nicole Kidman and Tom Cruise were very satisfied with their life
C. When they fail in Hollywood, the beautiful have little trouble in making a living
D. Hugh Grant and Elizabeth Hurley were a couple

3. Which of the following is the best title?

A. Five key factors affecting the partnership.
B. Beauties or common?
C. Beauties are doomed to fail in love.
D. The beautiful are different

     Running like the wind, roaring (咆哮) like thunder, tigers have long been feared and respected as a king
of the animal world. But last week a report said that there are no more than 30 wild tigers left in south China.
     This was the conclusion of a team of scientists from China's State Forestry Administration and the World
Nature Fund.
     The South China tiger, also known as the Chinese tiger, is native to southern China. In the 1950's, there
were over 4000 tigers found in mountain forests in the country. But due to the destruction of their natural
habitat (栖息地) and uncontrolled hunting, it has been pushed on to the list of the world's top ten most
endangered species.  
     Sixty-six of the big cats can be found in the cages of a dozen zoos around China. But they are nothing like
their wild cousins. They have lost their natural skills such as hunting and killing. If they were set free they
could not look after themselves.
     "Breeding has damaged the quality of the species", said Pei Enle, deputy director of the Shanghai Zoo.
     To reintroduce the species into the wild, the country started a programme to send five to ten young tigers
to South Africa. Four of them have already arrived. Progress has been made as two elder tigers have
recovered some of their instincts(本能) and can hunt wild animals by themselves at the African base.
     " South Africans are very experienced in reintroducing big animals to the wild. The country has very good
natural conditions for the tigers to learn in", said Lu Jun, office director of the National Wildlife Research and
Development Center. "We tried in Fujian Province, but it was not successful as there was not a complete
eco-chain (生物链) and there was a lack of space." The tigers should return to China in 2007 when the
reservations in Fujian are ready.

1. What is the main reason for the South China tiger becoming one of the world's top ten most
endangered species?

A. Because it has lost its natural instincts.
B. Because there is not a complete eco-chain.
C. Because there is no space for it.
D. Because uncontrolled hunting has destroyed its natural living conditions.

2. How is the programme of sending several tigers to South Africa getting on?

A. Its effect still remains to be seen.
B. Two tigers can already compete with their wild cousins.
C. Some of the tigers are already on the road to recovering their natural skills.
D. The tigers should be able to recover their instincts completely by 2007.

3. By saying " but they are nothing like their wild cousins", the writer means that ______.

A. they are no longer feared by other wild animals
B. they don't know how to hunt or kill
C. a complete change has resulted in the species because of breeding
D. to reintroduce them into the wild has become an urgent task

4. What is the purpose of sending young tigers to South Africa?

A. To help the tigers recover their ability to live in the wild.
B. To provide them with a better environment.
C. To get the tigers to go on a tour.
D. To find a complete eco-chain for them.

5. Which one is not the reason for South Africa being chosen as the training place?

A. Because the tigers can hunt wild animals by themselves at the African base.
B. Because South Africans are skilled at dealing with the tigers.
C. Because there is a complete eco-chain and enough space there.
D. Because the country has good natural conditions for the tigers to learn in.

     Zoology (动物学) deals with the study of the animals' habitat and behavior. It has nothing to do with
people, so many students are wondering why they have to learn it.
     Our nature includes not just the humans but plants and animals as well. Everything in our environment
is connected in a complex cycle. If you have a better understanding of how animals behave, then you
would value nature better.
     Some animals, like sharks and snakes, are often misunderstood by people. They are thought of as
human killers, and this is mainly because we don't understand why they behave that way. Zoology would
help you learn their natural behavior as well as their habits, so you would understand why they behave in
a defensive manner when they feel threatened.
      Studying zoology would help people know the real facts about animals. One of the sad facts is the
decreasing numbers of some species of animals. It makes people realize that there is a need for nature to
be always balanced. We need animals to keep the balance in our environment and for humans to survive.
Zoology helps us learn the needs that animals have and we can respond by thinking of solutions we can
give to the endangered species of animals.
     Technological progress is needed for a country to grow in terms of its economy; however, it should
not force us to destroy our rainforests and oceans. People should realize that our modern lives should
include the lives of the animals. Animals should not be contained in zoos but live in their natural habitats.
We will learn that every living creature on the earth has the right to own a habitat and we need to fight for
them to have permanent habitats.

1. According to Paragraph 2, zoology helps people to _____.

A. know the structure of nature
B. work with zoologists better
C. have an appreciation for nature
D. understand the animals' behavior

2. The example of sharks and snakes is used to show that _____.

A. people should have a better understanding of animals
B. people should communicate with animals
C. animals keep their behavior a myth
D. animals are human killers

3. In Paragraph 4, the author urges people to _____.

A. learn the real facts about animals
B. spread the knowledge of animals
C. satisfy the animals' needs
D. protect endangered animals

4. The passage is mainly about _____.

A. the advantages of learning zoology
B. the importance of studying zoology
C. the basic knowledge of zoology
D. the ways of protecting animals

     Few of us make money by losing sleep. But three graduate students at Brown University in Providence
built a company around sleep deprivation (睡眠不足).
     Jason Donahue, Ben Rubin and Eric Shashoua were working late nights in Brown's business and
engineering schools. They began thinking about ways to sleep better. They discovered they weren't alone in
burning the midnight oil. Around 20% of Americans get less than six hours of rest a night.
     The friends imagined a smart alarm clock that could track how much time people spend in the most
restorative (有回复作用的) stages of the sleep cycle: REM (rapid eye movement)and deep sleep. What would
it cost to design such a thing? Five years of research, 20 employees, $14 million and a whole lot of doubting
from investors and scientists.
     Their company, Zeo, based in Newton, Mass, launched its product in June, 2009. The Zeo device uses a
headband with tiny sensors (传感器) that scan your brain for signs of four sleep states-REM, light, deep and
waking sleep.The smart alarm clock displays a graph of your sleep pattern and wakes you as you're not in
REM sleep (which is when you're least groggy). In the morning you can upload the data to the company's
Web site, and so track your sleep over time.Most of the feedback comes in the form of Zeo's ZQ score
showing how well you've slept.
     "Zeo allows people to unlock this black box of sleep," says Dave Dickinson, a health-care CEO.
     Whether any of this actually improves sleep is up to the consumer, who will also need to make lifestyle
changes like cutting out alcohol before bedtime or caffeine after 3 pm.
     For now the company is selling Zeo online only. Dickinson also plans to spread it to countries such as
Australia, where sleep deprivation approaches US level

1. Who will support Zeo? 

A. People full of imagination.
B. People suffering sleeping problems.
C. People having access to the Internet.
D. People having bad lifestyles.

2. Why did the three graduate students imagine a smart alarm clock?

A. To wake them up on time in the morning.
B. To earn enough money for their study.
C. To improve the quality of people's sleep.
D. To enjoy their life while working at night.

3. To design the Zeo device, the three graduate students ____.

A. spent much time and money
B. were widely supported by scientists
C. worked by themselves all the time
D. attracted many investors .

4. What can we know from the passage?

A. Zeo has a direct effect on users' lifestyles.
B. It needs more personal efforts to make Zeo function better.
C. A large quantity of Zeo devices have been sold in Australia.
D. Consumers can go to the Zeo company to purchase Zeo in person

     "Hey, little buddy, will you support me when I'm getting old?" Han Wenshan, 35 years old, asked his
new-born baby as he picked him up at home.
     The Chinese tradition of raising sons to support parents in their old age has been weakened by the rapidly
growing economy and improved standard of living. As is the case with developed countries, China faces an
aging society. People are living longer and having fewer children. Therefore many Chinese families are falling
into a 4-2-1 family pattern: a couple raises one child and supports four elderly parents. But few realize this
problem.
     The aging of the population is a trend that now affects a growing number of countries. Not long ago, the
Information Office of the State Council, China's cabinet, issued a white paper on measures China is taking to
help its elderly population. The paper said China's population entered the aging phase (阶段) at the end of the
20th century as the proportion of people aged 60 and above accounted for over 10 percent of the entire
population. By the end of 2005, China had nearly 144 million people over 60, accounting for 11 percent of the
population, according to the white paper.
     An expanding aged population inevitably means that many issues must be settled, as the problem concerns
every aspect of society. It puts more pressure on each family, causing disturbing economic consequences
and serious social problems. It also challenges the labor force supply and the pension system.
      "I used to think that it's not an issue for me to provide for the aged," said Han, whose parents and
parents-in-law all enjoy pensions and medical insurance. But last year Han's father suffered a serious illness
and afterward Han began to feel the pressure on his shoulders.

1. Which of the following is not caused by an aging society?

A. Social problems.
B. The problem of the pension system.
C. More pressure on the family.
D. Unemployment.

55. From the passage we can infer ______.

A. the aging problem is one of the concerns for the Chinese government
B. China will encourage young couples to have more than one child
C. many people haven't realized the problem of an aging society
D. children will not support their parents in an aging society

2. Which of the following can be used to replace the underlined word inevitably?

A. surprisingly
B. naturally
C. hopefully
D. unluckily

3. From the passage we can see that ______.

A. China is the only country to face an aging society
B. most of the developing countries face an aging society
C. countries with a large population face an aging society
D. more and more developed countries face an aging society

     Plants grow faster if you talk to them and the effect is even better if you're a woman. Researchers at
Royal Horticultural (园艺的) Society carried out an experiment to find that the voice of a woman gardener
makes plants grow faster.
     The experiment lasted a month and by the end of the study scientists managed to discover that tomato
plants grew two inches taller when women gardeners talked to them instead of male.
     Sarah Darwin was the one of making the plants registered the best growth. Her voice was the most
"inspiring" for plants than the voices of nine other gardeners when reading a passage from The Origin of
Species. The great-great-granddaughter of the famous botanist Charles Darwin found that her plant grew
about two inches taller than the plant of the best male gardener.
     Colin Crosbie, Garden Superintendent (主管人) at RHS, said that the findings cannot yet be explained.
He presumes (认定) that that women have a greater range of pitch (音调) and tone which might have a
certain effect on the sound waves that reach the plant. "Sound waves are an environmental effect just like
rain or light," said Mr. Crosbie.
     The study began in April at RHS Garden Wisley in Surrey. Scientists started with open auditions (试听,
试演) for the people who were asked to record passages from John Wyndham's The day of the Triffids,
Shakespeare's A Midsummer Night's Dream and Darwin's The Origin of Species.
     Afterwards researchers selected a number of different voices and played them to 10 tomato plants during
a period of a month. Each plant had headphones connected to it. Through the headphones the sound waves
could hit the plants. Scientists decided to leave two plants in silence, thus to be positive that the experiment
is fair. It was discovered that plants that"listened" to female voices on average grew taller by an inch in
comparison to plants that heard male voices.
     Sarah Darwin said, "I think it is an honor to have a voice that can make tomatoes grow, and especially
fitting because for a number of years I have been studying wild tomatoes from the Galapagos Islands at the
Natural History Museum in London."

1. What does this passage mainly talk about?

A. Plants enjoy men's voices more than women's.
B. A botanical experiment in a museum.
C. Strange phenomenon at Royal Horticultural Society.
D. Voice influence on plant growing.

2. What do the underlined words mean?

A. Plants need sound as well as rain and light.
B. Sound is basic nutrition to the plant.
C. Sound has a good effect as rain or light does.
D. Plants are hungry for sound as well as rain and light.

3. What can we infer Sarah Darwin is?

A. A botanist.
B. A garden superintendent.
C. A gardener.
D. An environmentalist.

     With eerily (怪异地) clear and quiet skies across the entire length and breadth of the United Kingdom, the
Icelandic volcanic eruption seems to create even more disruption and chaos. The major eruption from this
massive volcano has halted almost 500,000 people a day who wanted to fly in and out of the UK due to all
flights being suspended.
     The last time an event took place on such a large scale was roughly around two hundred years ago, but
as aircraft were not a factor then it had almost no effects at all, and the last time domestic flights were delayed
for any length of time was in the Second World War.
     A cloud of volcanic ash has risen 20,000 feet into the sky from a major eruption in Iceland which lies 700
miles north of the United Kingdom, so why would an event like this create so much fuss for Britons and parts
of Europeans?
     Volcanic ash contains tiny particles of glass and sulphur (硫), which when sucked into an aircraft's jet
engine can cause the engine to stop. This is the time when you can imagine a pretty catastrophic event to
happen. Back in 1982 an incident involving a jet aircraft and volcanic ash did exactly that. The ash caused all
engines to fail and it was only thanks to the skill of the pilot that everyone on board managed to survive.
     So the governing bodies of the airways have decided to cease all air traffic that could be affected by the
cloud of volcanic ash as it is carried by a southward wind down from the north of Scotland across the entire
length and breadth of the UK across the English Channel and over Europe.
      On land there have been statements that there is no danger to humans, but people with asthma and
respiratory diseases should stay indoors.
      The Iceland volcano that has erupted is apparently not the only one that is worrying scientists, and there
is another volcano which is the Mount Etna. So if it erupted anytime soon with the wind blowing south, an
ash cloud from that one would cause long-term devastation (破坏) and disruption for a very long time. Fingers
crossed, then.

1. What time was it when domestic flights were suspended the last time due to volcanic eruption?

A. About 200 years ago. 
B. Back in 1982.
C. During World War Two.
D. In the 1950s.

2. What does the writer try to do in the fourth paragraph?

A. To explain British people's concern about the eruption.
B. To show that British people are very kind.
C. To tell us what is contained in volcanic ash.
D. To show the urgent demand for skilled pilots.

3. Which of the following people would be affected by volcanic ash?

A. People with blood problems.
B. People with heart trouble.
C. People with headaches.
D. People with breathing problems.

4. What can we infer from the last paragraph?

A. We humans should be ready for more volcanos.
B. Another volcanic eruption is just going to take place soon.
C. The Volcano of Mount Etna would be very destructive.
D. Scientists can do nothing to stop volcanic eruptions.