专业英语八级考试:TEM-8Exercise5(12)

网络资源 Freekaoyan.com/2008-04-11


SECTION B ENGLISH TO CHINESE(30 MIN.)
 
Translate the following underlined part of the text into Chinese. Write your translation on Answer Sheet Three.
 
Three years ago, a group of plant scientists led by Ilya Raskin, at Du Pont's agricultural laboratory in Delaware, discovered a surge of salicylic and in the voodoo lily the day before flowering. Using a sensitive analytical technique, they discovered that the level of salicylic acid in the plant leapt almost 100 times and triggered the explosion of respiration.
 
This established salicylic acid as a powerful chemical signal, albeit in a rather quirky plant. But what role might salicylic acid have in less exotic plants?
 
Plants have a kind of "immune system" with which they fight diseases. When fungi, bacteria or viruses infect a plant, they often trigger a signal which travels to uninfected leaves where it stimulates the production of disease-fighting protein. This mechanism of disease resistance, and the signal which prepares the plant's defenses, had been a mystery to biologists.
 
A promising clue came to light, however, in 1979. Raymond White at Britain's Rothamsted research station was able to prevent tobacco mosaic viruses from multiplying by injecting the infected plants with aspirin. The aspirin appeared to trigger the production of a group of diseases-fighting proteins.
 
Building on this and his own discovery with the voodoo lily, Raskin continued the work with graduate student Jocelyn Malamy and her colleagues at Rutgers University, New Jersey. They measured the levels of salicylic acid in tobacco plants that were infected with mosaic virus. Before any signs of infection or resistance were detected, salicylic acid levels surged almost five-fold throughout the plants. This surge then set off the manufacture of the disease-fighting protein.
 
PART V WRITING (60 MIN.)
 
On small kindness
 
Direction: Small kindness is always neglected in our society. Some people prefer to do big kindness. What is your idea on this topic?
 
Write an essay of about 300 words on the above topic within 60 minutes.
In the first part you should present the definition of small kindness. In the following parts you should state your opinion and support it with appropriate examples. In the last part you draw a conclusion.
 
Mark will be awarded for content, organization, grammar, and appropriacy. Failure to follow the above instruction may result in a loss of marks.

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