【题干】It's early August and the countryside appears peaceful. Planting has long been
finished and the fields are alive with strong, healthy crops. Soybeans and wheat are
flourishing under the hot summer sun, and the corn, which was“knee-high by the
fourth of July", is now well over six feet tall. Herds of dairy and beef cattle are
grazing peacefully in rolling pastures which surround big, red barns and neat, white
farmhouses. Everything as far. as the eye can see radiates a sense of prosperity.
Welcome to the Midwest - one of the most fertile agricultural regions of the world.
The tranquility of the above scene is misleading. Farmers in the Midwest put in
somc of the longest workdays of any profession in the United States. In addition to
caring for their crops and livestock, they have to keep up with new farming
techniques, such as those for combining soil erosion and increasing livestock
production. It is essential that farmers adopt these advanccs in technology if they
want to continue to meet the growing demands of a hungry world.
Agriculturc is the number one industry in the United States and agricultural
products are the country's leading export. American farmers manage to feed not
only the total population of the United States, but also millions of other people
throughout the rest of the world. Corn and soybean exports alone account for
approximately 75 percent of the amount sold in world markets.
This productivity, however, has its price. Intensive cultivation exposes the
earth to the damaging forces of naturc. Every year wind and water remove tons of
rich soil from the nation's croplands, with the result that soil erosion has become a
national problem concerming everyone from the farmer to the consumer.
Each field is covered by a limited amount of topsoil, the upper layer of earth
which is richest in the nutrient and minerals necessary for growing crops. Ever
since the first farmers arrived in the Midwest almost 200 years ago, cultivation and,
consequently, erosion have been depleting the supply of topsoil. In the 1830s,
nearly two feet of rich, black top soil covered the Midwest. Today the average
depth is only eight inches, and every decade another inch is blown or washed away.
This erosion is steadily decreasing the productivity of valuable cropland. A United
States Agricultural Department survey states that if erosion continues at its present
rate, comn and soybean yields in the Midwest may drop as much as 30 percent over
the next 50 years.
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1、[主观题]【总结句子】The fightened feling of gting cancer is catching. The earth itself is coming
to seem like a huge substance which can cause cancer. The statement that
something between 80 to 90 percent of all cancers is due to the things in the
environment is taken to mean that none of us will be safe until the whole
environment is "cleaned up".
36. People's f_____of getting cancer.
2、[主观题]【总结句子】No matter how vicious a man may be, there is always in him a part of our
common humanity. AlIl people are reachable somewhere and, if you can control
your own fear, something in the very danger itsef will tll you how to act.
38. The necessity to o_____fear when dealing with an evil person.
3、[主观题]【总结句子】The. education of the mind is not a mere qustin of remembering facts which someone else gives us. In fact, the mind should conduct its own eduction to a
better extenl. It cannot do this unless it analytically thinks for itelf. A mind that
does not reason is comparatively useless.
40. An educated mind does m_____than remembering given facts.
4、[阅读理解]【概括词汇】32. a means of carrying goods from one place to another (Para. 4)
5、[阅读理解]【阅读理解】21. Human beings initially demonstrated their ingenuity in______.
A. the use of machines to produce science fiction
B. the wide use of machines in manufacturing industry
C. the invention of tools for difficult and unpleasant work
D. the elite's cunning tackling of dangerous and boring work
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