Syndrome is same with the concept of disease.

As far as the greenhouse effect is concerned, the author ______.

A．shares the same view with the scientists

B．is uncertain of its occurrence

C．rejects it as being ungrounded

D．thinks that it will destroy the world soon

A. direct contact with infected blood

B. from 2 to 15 or more years after becoming infected

C. without symptoms

D. acquired immuno-deficiency syndrome

E. live in the same room with an HIV-infected roommate

F. breast-feeding

The term AIDS is an acrtonym which represents______.

A、The definition and inclusion for essential element are not the same in plant and animal systems.

B、Because the trace elements essential for plants are those elements which cannot be substituted by others in their specific biochemical roles and that have a direct influence on the organism so that it can neither grow nor complete some metabolic cycle.

C、In general, B, Co, Cu, Fe, Mn, Mo, Si and Zn are known to be essential for plants, whilst Al, As, Br, F, I, Li, Ni, Rb, Se, Sr, Ti and V are known to be essential for some groups or species. In human and animal systems, trace elements are defined as being essential if depletion consistently results in a deficiency syndrome and repletion specifically reverses the abnormalities.

D、The trace elements fulfilling these requirements are As, Co, Cr, Cu, F, Fe, I, Mn, Mo, Ni, Se, Si, Sn, V and Zn.

e became one of the millions who write in a special short form. of English.

And you've got a sense of humor about short forms like SOHF(= sense of humor failure)to describe Internet new comers who understand you. Across the globe, every night teenagers and their elders are "talking" online — many of them all talking at the same time.

It's fast try talking to six people at once. It's brief three or four words per exchange. It takes wit (诙谐), and quick fingers.

Want to enter a conversation？ Just type PMFJI(= pardon me for jumping in).

Interested in whom you're talking to？ A/S/L, the nearly universal request to know your pal's age, sex and location. You may get 15/M/NY as a response from your pal.

If something makes you laugh, say you're OTF (= on the floor), or LOL (= laughing out loud, or combine the two into ROTFL(= rolling on the floor laughing).

And when it's time to get back to work or go to bed, you type GTG(got to go)or TYYL(=talk to you later). People want to write as fast as possible, and they want to get their ideas across as quickly as they can. Capital letters are left in the dust, except when expressing strong feeling, as it takes more time to hold down the "shift" key and use capitals. Punctuation (标点) is going, too.

In order to talk to several people at the same time on the Internet,______.

A．you have to speak fast and fluently

B．you should speak with wit and humor

C．one should pay much attention to the use of exact words

D．you have to express your ideas in a brief way

and traffic violations to murder. The Supreme Court(最高法院) has ruled that anyone charged with a crime has certain rights under the law. Do you know what your rights are if you are arrested？ Here are four of them.

First, as soon as the police arrest a person, they must tell him of his right to remain silent. Under the taw, he is not required to answer their questions.

Second, the police must tell him of his right to have a lawyer. The state or city government will pay a lawyer to take the case of a suspect who cannot afford one.

Third, the Fifth Amendment(修正案) to the Constitution says that no person has to be a wit ness against himself. This means that the suspect does not. have to speak against himself.

Fourth, a person cannot be tried for the same crime twice. ff a person has been found innocent, he cannot be arrested again, brought to court, and retried for the same: crime.

What does the word "ruled" mean？

A．governed

B．guided

C．decided

D．controlled

Task 2

Directions: This task is the same as Task 1. The 5 questions or unfinished statements are numbered 41 through 45.

Pat O'Burke was a poor Irishman with a large family, and one morning, waking up very early from cold and hunger, he decided to go shooting in a wood near his cottage. The wood belonged to Lord Northwood, a rich gentleman, and Pat had no right to go there, but in it there were swarms of rabbits and flocks of birds that were good to eat, and Pat determined to take the risk. Suddenly he saw the owner, with a group of friends, coming towards him in the wood. There was a look of anger on Lord Northwood's face as he caught sight of the gun in Pat's hands. Pat's heart sank with fear, but he saw there was no hope of escape, so he walked boldly up to the company and said to Lord Northwood, "Good morning, sir; and what has brought you out so early this morning？" Lord Northwood, rather surprised, said he and his friends were taking a little exercise to get an appetite for their breakfast. Then, looking at Pat with suspicion, he said, "But why are you out so early in the morning？"..."Well, sir," said Pat, "I just came out to see if I could get a breakfast for my appetite". The whole crowd burst into laughter at Pat's ready wit, and with a smile Lord Northwood walked on, leaving Pat to try his luck with the rabbits.

This is a story about ______.

A．a rich man who owned a big wood

B．a poor Irishman who lived all by himself

C．a clever man who got something to eat for his breakfast

D．an Irish hunter with a large family

To Err Is Human

by Lewis Thomas

Everyone must have had at least one personal experience with a computer error by this time. Bank balances are suddenly reported to have jumped from $379 into the millions, appeals for charitable contributions are mailed over and over to people with crazy sounding names at your address, department stores send the wrong bills, utility companies write that they're turning everything off, that sort of thing. If you manage to get in touch with someone and complain, you then get instantaneously typed, guilty letters from the same computer, saying, "Our computer was in error, and an adjustment is being made in your account."

These are supposed to be the sheerest, blindest accidents. Mistakes are not believed to be the normal behavior. of a good machine. If things go wrong, it must be a personal, human error, the result of fingering, tampering a button getting stuck, someone hitting the wrong key. The computer, at its normal best, is infallible.

I wonder whether this can be true. After all, the whole point of computers is that they represent an extension of the human brain, vastly improved upon but nonetheless human, superhuman maybe. A good computer can think clearly and quickly enough to beat you at chess, and some of them have even been programmed to write obscure verse. They can do anything we can do, and more besides.

It is not yet known whether a computer has its own consciousness, and it would be hard to find out about this. When you walk into one of those great halls now built for the huge machines, and standing listening, it is easy to imagine that the faint, distant noises are the sound of thinking, and the turning of the spools gives them the look of wild creatures rolling their eyes in the effort to concentrate, choking with information. But real thinking, and dreaming, are other matters. On the other hand, the evidence of something like an unconscious, equivalent to ours, are all around, in every mail. As extensions of the human brain, they have been constructed the same property of error, spontaneous, uncontrolled, and rich in possibilities.

The title of the writing "To Err Is Human" implies that______.

A．making mistakes is confined only to human beings.

B．every human being cannot avoid making mistakes.

C．all human beings are always making mistakes.

D．every human being is born to make bad mistakes.

Sleep Problems Plague the Older Set

Older Americans often have difficulty getting a good night's rest. It's a huge quality-of-life problem, experts say, because contrary to popular belief, seniors require about the same amount of sleep as younger adults.

"Sleep problems and sleep disorders are not an inherent (固有的) part of aging," said Dr. Harrison G. Bloom, an associate clinical professor of geriatrics (老年病学) and medicine at the Mount Sinai School of Medicine in New York City. "It's pretty much of a myth that older people need less sleep than younger people."

Yet, in a study published recently in The American Journal of Medicine, researchers found that more than half of older Americans have problems getting the sleep they need.

Older people tend to have "sleep fragmentation," meaning they wake up more often during the night, said study author Dr. Julie Gammack, an assistant professor of medicine in the Division of Geriatric Medicine at St. Louis University.

They also seem to get less "REM" sleep, the type of sleep during which rapid eye movement occurs, Bloom added.

It's unclear what role these naturally occurring changes in sleep patterns have on a person's quality of life, Bloom said "What is important, though, is that older people often have actual sleep disorders and problems with sleep," he said.

And, experts say, there is usually more than one cause.

"Sleep trouble in older adults is typically associated with acute and chronic illnesses, including specific sleep disorders like sleep apnea (呼吸暂停) and restless leg syndrome that appear with greater frequency in older populations," said Michael V. Vitiello, a professor of psychiatry and behavioral sciences and associate director of the University of Washington's Northwest Geriatric Education Center.

Taking multiple medications, as many older people do, can also lead to fatigue and "hypersomnia," or being tired all the time, Bloom added.

Another big problem, he noted, is depression and anxiety. "Those are very commonly associated with sleep problems."

Despite the prevalence (流行) of sleep difficulties in older adults, many patients aren't getting the help they need As a result, problems like insomnia (失眠), restless leg syndrome and sleep apnea are underdiagnosed and undertreated, Bloom said.

Sleep problems can seriously affect one's quality of life.

A．Right

B．Wrong

C．Not mentioned

听力原文：M: Good morning, Doctor.

W: Good morning, Mr. Smith. What can I do for you？

M: I feel there's something wrong with me, but I'm not sure.

W: Could you explain more？

M: I usually get a runny nose, watery eyes, scratchy throat and other symptoms on Monday. It will last for the following five days. And since I'm terribly busy with my work, I won't have time to see the doctor. But when I do have time to see tile doctor on weekends, the symptoms will disappear all of a sudden!

W: And you will get same symptoms again next Monday？

M: Exactly.

W: How long have you been like this？

M: About one month.

W: Did anything special happen during the past four weeks？

M: Nothing special. Oh, wait! My company has moved from the old address to the present -Mount Plaza.

W: Do your colleagues have the same trouble with you？

M: Well, some of them.

W: I see. You must be suffering from so-called sick building syndrome.

M: Sick building syndrome？ You mean the building got sick and we have been infected？

W: You may put it that way. When a new building is just finished, the chemical vapors being given off by the glue, paint and other construction materials and moisture can't escape, the building, just like people, can't breathe properly. So it gets sick.

M: And these chemical vapors may be very irritating to people.

W: Some of them can even lead to cancer.

M: That's terrible.

How long has the man suffered from the symptoms he described？

A．One week.

B．One month.

C．Two months.

D．Half a year.