大学英语三级试卷
大学英语三级考试试卷
I. Reading Comprehension (30%)
Passage One
Tread (踩) softly in the garden and pluck that rose with care; flowers cry when cut, cucumbers scream and even healthy fruit gurgles (发出咯咯声) according to new acoustic research on the stressful life of plants.
The findings, released by the Institute for Applied Physics at the University of Bonn, could have important implications for farmers since, with the proper eavesdropping device, one can now distinguish between healthy and sick vegetables. Talking to plants, it seems, is not as rewarding as listening to them.
The Bonn scientists have developed laser-driven microphones that pick up sounds inaccessible to the human ear. When a leaf or a stem is sliced, the plant signals pain (or perhaps merely dismay) by releasing the gas ethylene (乙烯) over its entire surface.三级 英语
Doctor Frank Kuhnemann of Bonn University has been trapping the ethylene in a bell jar. The gas molecules are later bombarded with laser beams, which makes them vibrate. This produces a sound wave picked up by the microphones. "The more a plant is subjected to stress, the louder the signal we get on our microphone," he said.
(By eavesdropping on plants it should be possible to develop an early warning system to detect pests and disease). Knowing the stress level of fruit and vegetables can also be an aid in efficient storing and transporting. Acoustical evidence demonstrates that apples emit higher levels of ethylene, which causes neighboring plants to wilt (枯萎). As a result, the scientists urged fruit producers to store apples separately.
1. The first paragraph tells us that _____.
A. plants also have feelings like human beings
B. plants may have different reactions to different treatments
C. we should not cut flowers
D. healthy fruit will cry
2. The findings' implication lies in that _____.
A. we can know more about plants through talking to them
B. we can help plant grow by playing music for them
C. with acoustic device, we can know about the situation a plant is in
D. with the help of eavesdropping, we can hear plants talking
3.　In the experiment, _____ is not used.
A. ajar
B. microphones
C. a bell
D. laser beams
4.　According to the passage, plants can _____.
A. dance to the music
B. listen to people talk
C. be trapped by laser beams
D. release the gas ethylene
5. Through the experiment we know that _____.
A. we should not store apples together with the other fruits
B. not all plants can release the gas ethylene
C. we can hear the cry of a plant with our ears
D. plants also eavesdrop our conversation
Passage Two
(Despite a cooling of the economy, high-technology companies are still crying out for skilled workers). The Information Technology Association of America projects that more than 800,000 technology jobs will go unfilled next year. The lack of qualified workers poses a huge threat to the U.S. economy.
The most commonly cited reason for this state of affairs is that the country's agrarian-age (农村时代) education system fails to prepare students in the primary and secondary grades for twenty-first-century work. Yet an inadequate and outmoded education system is only part of the problem. A less tangible but equally powerful cause is an antique classification system that divides the workforce into two camps: white-collar knowledge workers and blue-collar manual laborers.

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