题目内容
（请给出正确答案）
The major cause of malnutrition in the world is lack of ______.
A．protein
B．vitamin
C．minerals
D．food
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Drug Reactions m a Major Cause of Death
Adverse drug reactions may cause the deaths of over 100,000 US hospital patients each year, making them a leading cause of death nationwide, according to a report in the Journal of the American Medical Association.
"The incidence of serious and fatal adverse drug reactions (ADRs) in US hospitals was found to be extremely high," say researchers at the University of Toronto in Ontario, Canada.
They carried on an analysis of 39 ADR-related studies at US hospitals over the past 30 years and defined an ADR as "any harmful, unintended, and undesired effect of a drag which occurs at doses used in humans for prevention, diagnosis, or therapy."
An average 6.7% of all hospitalized patients experience an ADR every year, according to the researchers. They estimate that "in 1994, overall 2,216,000 hospitalized patients had serious ADRs, and 106,000 had fatal ADRs." This means that ADRs may rank as the fourth single largest cause of death in America.
And these incidence figures are probably conservative, the researchers add, since their ADR definition did not include outcomes linked to problems in drug administration, overdoses, drug abuse, and therapeutic failures.
The control of ADRs also means spending more money. One US study estimated the overall cost of treating ADRs at up to $4 billion per year.
Dr. David Bates of Brigham and Women's Hospital in Boston, Massachusetts, believes that healthcare workers need to pay more attention to the problem, especially since many ADRs are easily preventable. "When a patient develops an allergy or sensitivity, it is often not recorded," Bates notes, "and patients receive drugs to which they have known allergies or sensitivities with disturbing frequency." He believes computerized surveillance systems — still works-in-progress at many of the nation's hospitals — should help cut down the frequency of these types of errors.
Researchers at the University of Toronto believe that
A．ADRs have caused medical problems, though they seldom lead to death.
B．ADRs have very often caused patients to die in Canada.
C．ADRs have caused many deaths in America over the past 30 years.
D．it is easy to prevent ADRs from happening.
The writer thinks that the major cause of pollution is ______.
A．increasing industrialization
B．the modern way of life
C．man
D．none of the above
听力原文：F：Mr．Hunt，what do you think is the major cause of stress？
M：Stress is generally driven by the feeling of being out of control of a situation and the feeling of a situation controlling you．It's the feeling of uncertainty，being out of control，that causes the stress．
F：So why exactly does your job have a reputation for being stressful？
M：Well，trading financial markets combines both of the above-mentioned situations．Your financial position can change in a matter of seconds，and what changes that position is generally a situation beyond your control as a trader．It is possible to lose in seconds what may have taken you a year to make．I think that's why many people say trader is a stressful job．
F：How do you relax in the evening？
M：In the evening，I very rarely do anything related to my work，so it's easy to escape‘the markets’．I generally go to the gym or go for a run．especially if I've had a bad day．I always cook a meal rather than have a takeaway，to do something my brain would regard as creative．I find it quite helpful!More often than not I will watch some TV before going to bed，as I find it helps me to wind down，to relax．If I go to bed straight after work，it's harder to sleep．
F：What do you do to beat stress at the weekend？
M：I like to be busy and active．I like the feeling of having achieved something over the weekend and it being productive．I definitely don't like wasting days．Most weekends are a mixture of household jobs like fixing something，shopping or gardening and socialising with friends．I also go to watch football games at least once a week．
F：Do you think what you do to relax is an effective way to beat stress？
M：I don't think there is a specific rule about how to beat stress．I generally find that what I do is effective for me．
F：Would you consider changing your job because of the high stress factor？
M：I have considered leaving my job because of those stress related factors．However，I think that anelement of stress is a good thing and if it is used the right way，it can actually be a positive thing．It can lead to a change in direction，success，and even encourage you to do something new．
F：What do you enjoy about the stressful aspects of your job？
M：Having said all that，I do actually enjoy an element of uncertainty．It requires you to keep alert all the time!I enjoy a mental challenge．Trading triggers a very wide range of emotions second by second． How you deal with and manage those emotions dictates short，medium and long term trading performance and success．
F：Do you become less stressed the longer you do the job or does it become more stressful as you go on？
M：I would say it remains constant．The source and the nature of the stress changes and how you deal with it changes due to experience，but，but，it's always there．
Questions 23-30
•You will hear an interview in which Mr．Hunt，a financial trader，talks about the stresses of his job and how he beats it。
•For each question 23-30，mark one letter(A，B，or C)for the correct answer．
•You will hear the recording twice．
According to Mr．Hunt，what is the major cause of stress？
A．Not being able to control the market．
B．Failure to balance work and relaxation．
C．The feeling of uncertainty and losing grip．
A major cause of the increase in the greenhouse gases is
A．the burning of trees and crops.
B．the building of many greenhouses.
C．the burning of large quantities of coal and oil.
D．the flooding of large areas of the world.
The writer thinks that the major cause of pollution is ______.
A. increasing industrialization
B. the modern way of life
C. man
D. none of the above
A. major
B. majority
C. minor
D. minority
The major cause of sleep-deficit of modem people is ______.
A．the endless TV programme in the evenings
B．heavy work load of the day
C．sufficient energy modem people usually have
D．loud noises in the modem cities
What's the major cause of the higher price according to the passage？
A．Higher taxes on carbon emissions.
B．Changes of the lifestyle.
C．The rising living standards.
D．Rising energy costs.
What's the major cause in the decline of Asian elephants？
A．Their taming for circuses and zoos.
B．The destruction of their natural homes.
C．Man's lack of knowledge about their behavior.
D．The greater vulnerability to extinction than other species.
