Ⅶ. Directions: Read the following passage, and then fill in the table with the information based on the
passage.(10%)
Since the 1950s, the treatment for crops suffering from such pests has sometimes been an indiscriminate
application of potent chemicals. But concern for environmental standards in richer countries is beginning to
decrease their use. Even some safe, commonly used pesticides will soon become unavailable because, when
their patents run out, the cost of complying with environmental regulations in marketing these products may
exceed the profits that might otherwise accrue to their manufacturers. Fortunately, these chemicals are not
the only weapons available to the battle. A wide array of alternative measures can be brought in for support.
The term“integrated pest management” captures that notion. It refers to the combination of using hardy
plants, crop rotations, tillage practices, biological controls and a minimal amount of pesticides.
Integrated pest management draws on the fundamental knowledge of plant and insect biology amassed by
botanists and entomologists. Hundreds of insect attractants (pheromones) have already been identified
and synthesized, and these substances can be used to interfere with the normal reproductive cycle of
common pests -- for example, by inducing the insects to mate too soon or inappropriately. Researchers
are also enthusiastic about the possibility of using insect viruses to suppress pests effectively without
harming their natural predators or leaving unwanted chemical residues. Coming advances will
undoubtedly make such carefully tailored insect-control techniques more widely available to
knowledgeable farmers, who can then incorporate them as standard routines.
Measures for Pest Control
Measures Description Disadvantage Prospect
the use of
47
application of
potent
chemicals
harmful to the
environment
48
Integrated
Pest
Management
49 50 51
47.
48.
49.
50.
51.
Part D:WRITING
Ⅷ. Passage-writing.(15%)
52. Directions: Write a passage(150-200 words)in English on the title “Modern Medicine and Our
Life”. Develop the ideas according to the Chinese outline given below.
1)现代医学知识更加丰富，医疗技术更为先进。
2)现代医学将给人类带来福音：永远健康、延年益寿。
3)然而，必须指出，现代医学将带来一些严重的社会问题。 |
