20．The underined word “cautious” most probably means 　　　　　.

　　　　 A．cheerful　　　　　　　　　 B．dutiful　　　　　　　　　　　 C．helpful　　　　　　　　　　　 D．careful

19．Which of the following may serve as the best title?

　　　　 A．Keep a Cool Head While Fighting SARS　　 B．A Breakthrough in Fighting SARS

　　　　 C．A Leading Role in Fighting SARS　 D．Volunteers Wanted While Fighting SARS

18．From the passage, we could see that the author’s attitude towards the new vaccine is quite 　　　　　.

　　　　 A．praising　　　　　　　　　　 B．critical　　　　　　　　　　　 C．matter-of-fact　　　　 D．humorous

17．According to the passage, which of the following is not true?

　　　　 A．The developments in vaccine research in SARS are encouraging.

　　　　 B．More that 1,400 vaccine shots for SARS have been applied to clinical test.

　　　　 C．China is now leading in the search for a SARS vaccine.

　　　　 D．Experiments using the new vaccine will be carried out only in Beijing and Guangzhou.

16．According to the passage, people wearing uniforms 　　　　　.

　　　　 A．are usually helpful B．have little or no individual freedom

　　　　 C．tend to lose their individuality　　　　　　　　　　 D．enjoy greater popularity

E

While the threat of a reappearance of SARS is still there, it is reassuring to learn about the latest developments in vaccine research.

More that 1,400 vaccine shots for SARS have been produced in China, and an application for clinical tests has been referred to the State Food and Drug Administration(SFDA)， according to a Xinhua report on Sunday.

“If everything goes smoothly, conducting of clinical experiments will be agreed before the end of December,” said Yin Hongzhang, head of Biological Product Section of the SFDA.

So far, China is far ahead of other countries in the search for a SARS vaccine, claimed Yin. At that time, volunteers will be sought in Beijing and Guangzhou to take part in experiments using the new vaccine. However, while cheering for the research breakthrough, voices of reason should also be heard.

What medical workers should always maintain is a cool head and careful attitude, which are essential in any scientific research. This is especially true when conducting experiments on human beings, because they are directly concerned with the volunteers’ health and even their lives, and also because knowledge of the deadly virus(病毒) still too limited.

Media reports indicate that members of the public are reacting actively to the news of selecting volunteers and are expressing their readiness. Their courage is well worth our admiration. The trust they are placing in these medical researchers is the biggest support of their work.

The researchers have no other choice but to be highly cautious in the expected experiments. The safety of volunteers should always be the first consideration. Scientists from different countries have been put in a race in uncovering the mystery surrounding the virus. But to play a leading role should by no means be the ultimate pursuit(最终目标)of the scientific workers. It is people’s safety and health that remain the biggest concerns.

While there are still so many mysteries to be solved, it is too early to celebrate.

15．The chief function of a uniform is to 　　　　　.

　　　　 A．provide practial benefits to the wearer　　　　　　 B．make the wearer catch the public eye

　　　　 C．inspire the wearer’s confidence in himself

　　　　 D．provide the wearer with a professional identity

14．People are used to thinking that a man in uniform 　　　　　.

　　　　 A．suggets quality work　　　　　　　　　　　　　　　　 B．discards(抛弃)his social identity

　　　　 C．appears to be more practical　　　　　　　　　 D．looks superior to a person in civilian clothes

13．It is surprising that Americans who worship(崇尚)variety and individuality 　　　　　.

　　　　 A．still judge a man by his clothes　　 B．hold the uniform in such high regard

　　　　 C．enjoy having a professional identity

　　　　 D．will respect an elevator operator as much as a general in uniform

12．Which of the following is NOT true according to the passage?

　　　　 A．Tuvalu’s nine little islands are less than five meters above the sea level.

　　　　 B．The average global temperature has risen by 1-3 centigrade degrees over the past 100 years.

　　　　 C．The warmer temperature causes the sea level to rise.

　　　　 D．There will be huge climate changes unless the warming is stopped.

D

Americans are proud of their variety and individuality, yet they love and respect few things more than a uniform, whether it is the uniform of an elevator operator or the uniform of a five-star general. Why are uniform so popular in the USA?

Among the arguments for uniforms, one of the first is that in the eye of most people they look more professional than civilian clothes(便服).People have become conditioned to expect superior quality from a man who wears a uniform. The television repairman who wears a uniform tends to inspire more trust than one who appears in civilian clothes. Faith in the skill of a garage mechanic is increased by a uniform. What easier way is there for a nurse, a policeman, a barber, or a waiter to lose professional identity than to step out of uniform?

Uniforms also have many practical benefits. They save on other clothes. They save laundry(洗衣店)bills. They are tax-deductible(可减税的).They are often more comfortable and more long-lasting than civilian clothes.

Primary among the arguments against uniforms is their lack of variety and the consequent(随之而引发的)loss of individuality experienced by people who must wear them. Though there are many types of uniforms, the wearer of any particular type is generally stuck with it, without change, until retirement. When people look alike, they tend to think, speak, and act similarly, on the job at least.

Uniforms also give rise to some practical problems. Though they are long-lasting, often their initial(最初的)expense is greater than the cost of civilian clothes. Some uniforms are also expensive to maintain, requiring professional dry cleaning rather than the home laundering possible with many types of civilian clothes.

11．What does “climate refugees” mean?

　　　　 A．People who are forced away from their homeland by climate.

　　　　 B．Climate changes.　　　 C．Rare animals.　　　 D．Climate effect.