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.

In 2004，the World Health Organization，WHO，warned of a possible outbreak of another serious disease which may be even more deadly than SARS．The WHO believes that it is likely that bird flu will spread to human beings in the next few years．If it does，up to seven millions people could die from the disease．

Diseases like bird flu are caused by viruses，that is，tiny things which change and become more dangerous over time．When a new type of a common virus changes，it may be able to get past the body’s immune(免疫的)system．If that happens，humans are in great danger until a cure or treatment becomes available．

There have always been viruses and people always get sick，of course，but as we saw with SARS，the situation is more difficult today．People travel more than ever before，which means that disease can spread quickly and across large areas——in fact the whole world．

Scientists are already working on drugs that will prevent or limit the effect of a new virus，but the process takes time．It is just as important to make sure that countries，especially poor countries，are prepared to deal with the disease. New disease usually affect poor areas the most，so we must help develop health care in all countries．

1.The situation is more serious today because           ．

A．people travel more                                      B．people don’t eat healthy food

C．there aren’t enough hospitals                        D．scientists can’t find a cure

2.From this passage we know           ．

A．bird flu will surely spread to human beings in the next few years．

B．a virus changes and become less dangerous over time．

C．SARS is 1ikely to come again in some years．

D．poor areas usually suffers more from new diseases than rich areas．

3.The possible title of this passage is

A．The Work of WHO

B．Scientists Are Working Hard on Drugs for Diseases

C．What Is a Virus

D．Virus Changes and Causes New Diseases Over Time

Nothing can spoil a vacation quicker than losing your money or credit cards. A few simple steps before you head out of the door can help protect your cash, card and personal information while you’re traveling.

Paul Stephens, a policy analyst San Diego, notes that people spend a lot of time planning their trips, from buying guidebooks to finding just the right beach outfits（装备）. “But their eyes glaze（呆滞）over when the subject of keeping money safe comes up,” he said.

 “Why not take a few minutes to do something that could probably save your vacation?” Stephens asked．“In most cases, they can go on your to-do list with ‘buy travel bags’ and everything else,” he added.

The top recommendation is to clean your wallet. Remove unnecessary credit cards and any other unneeded documents that could compromise（危及...的安全）your identity if lost or stolen while you’re on vocation.

Then make a photocopy of the cards you’ve decided to take along and keep it in a secure location with you（not in your wallet）or leave it with a trusted relative or friend back home. Then you will know who you need to contact and how to reach it if your wallet is missing.

“Travelers should never leave their wallets or any identifying documents in their hotel room when they’re not there,” he said. “Choose a hotel with a safe to keep your valuable things in. Or keep your wallet and documents with you at all times. ”

1.What does the underlined word stand for?

   A．The people who are going traveling.

   B．The outfits that are prepared for traveling.

   C．The suggestions on what to buy when traveling.

   D．The steps to avoid losing money or credit cards.

2.What should people do with their wallet before they go on vacation?

   A．Take it with them all the time.

   B．Put it in a safe place at the hotel.

    C．Remove unnecessary cards and documents.

    D．Leave it with family or friend.

3.What is the topic of the passage?

   A．How to prepare for travel.

    B．How to be happy during your vacation.

   C．How to keep cash and cards safe on vacation.

   D．How to protect your luggage on vacation.

4.According to the passage, we know          .

    A．people don’t always know how to protect their money or credit cards

    B．people should take a lot of money with them while traveling

    C．people can leave their identifying documents in rooms, if the hotel is expensive

    D．people can spend a few minutes preparing the luggage for traveling

Sheep Smarter than Thought

London—Sheep, like turkeys and ostriches, are not considered the most clever animals. British scientists said last Wednesday humans may have underestimated the woolly creature. They could be much smarter than we think.

Researchers at the Babraham Institute in Cambridge, southern England, have shown that the animals have a good memory system and are extremely good at recognizing faces—which they think is a sure sign of intelligence.

Behavioral scientist Keith Kendrick and his friends trained 20 sheep to recognize and distinguish 25 pairs of sheep faces and used electrodes (电极) to measure their brain activity , which showed they could remember 50 faces for up to two years .

“If they can do that with faces, they have to have reasonable intelligence; otherwise, what is the point of having a system for remembering faces and not remembering anything else?” Kendrick said in an interview.

So hours of seemingly mindless eating grass may not be so mindless after all.

Kendrick believes sheep got their reputation as dumb (unable to speak, unintelligent) animals because they live in large groups and do not appear to have much individuality and are frightened of just about everything.

“All animals, including humans, once they are frightened, don’t tend to show signs of intelligent action,” he explained.

In research reported in the science journal Nature, Kendrick and his team showed that sheep, like humans, have a specialized system in the brain which allows them to distinguish between many different faces which look extremely similar.

“The most important finding (of the study) is that they are able , both from a behavioral point of view and from looking at the way the brain is organized , to remember a large number of individuals for a very long time,” said Kendrick. “It is a very strange system. They are showing similar abilities in many ways to humans.”

1.From the first paragraph we can find that______.         .

    A．people used to think sheep are smarter than the other animals

    B．people used to raise sheep in a wrong  way

    C．people don’t consider sheep as clever animals

    D．people have done a lot of research on sheep

2.From what Kendrick said in the interview we learn that_____.         .

    A．scientists have learned everything about sheep’s intelligence

    B．scientists have learned a little about sheep’s intelligence

    C．scientists can’t do anything more about sheep’s memory

    D．scientists do not have to research animals’ memory

3.As is known in the passage,__________.

    A．sheep are among the week animals

    B．it is not right for people to raise sheep in groups

    C．when sheep eat grass in the field their minds may be active

    D．if people feel frightened, they may become braver