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发布时间:2012-09-12 关键词:托福阅读辅导讲义(第4课时)
摘要:托福阅读辅导讲义(第4课时)
对于中国考生来说,托福阅读要拿的可能性比较大,因为中国的考生平时的做题训练比较多,相比而言 ,阅读有优势,是拿的关键题型。但是,也不是说大家什么不做就都可以拿阅读。那么,如何才能争取发挥自己的优势呢?北京新航道致力于为考生提供托福培训的相关指导,下面就由航道小编们针对托福阅读给予一些技巧方面的指导,希望大家能从中找到自己的方法,发挥出自己的成绩。
In July of 1994, an astounding series of events took place. The world anxiously watched as, every few hours, a hurtling chunk of comet plunged into the atmosphere of Jupiter. All of the twenty-odd fragments, collectively called comet Shoemaker-Levy 9 Line after its discoverers, were once part of the same object, now dismembered and strung out (5) along the same orbit. This cometary train, glistening like a string of pearls, had been first glimpsed only a few months before its fateful impact with Jupiter, and rather quickly scientists had predicted that the fragments were on a collision course with the giant planet. The impact caused an explosion clearly visible from Earth, a bright flaming fire
that quickly expanded as each icy mass incinerated itself. When each fragment slammed (10) at 60 kilometers per second into the dense atmosphere, its immense kinetic energy was transformed into heat, producing a superheated fireball that was ejected back through the tunnel the fragment had made a few seconds earlier. The residues form these explo-sions left huge black marks on the face of Jupiter, some of which have stretched out to from dark ribbons.
(15) Although this impact event was of considerable scientific importance, it especially piqued public curiosity and interest. Photographs of each collision made the evening television newscast and were posted on the Internet. This was possibly the most open scientific endeavor in history. The face of the largest planet in the solar system was changed before our very eyes. And for the very first time, most of humanity came to fully appreciate the (20) fact that we ourselves live on a similar target, a world subject to catstrophe by random assaults from celestial bodies. That realization was a surprise to many, but it should not have been. One of the great truths revealed by the last few decades of planetary explo-ration is that collisions between bodies of all sizes are relatively commonplace, at least in geologic terms, and were even more frequent in the early solar system.
3. The author compares the fragments of comet Shoemaker-Levy 9 to all of the following EXCEPT
(A) a dismembered body
(B) a train
(C) a pearl necklace
(D) a giant planet
答案:D
By far the most important United States export product in the eighteenth and nineteenth centuries was cotton, favored by the European textile industry over flax or wool because it was easy to process and soft to tile touch. Mechanization of spinning and Line weaving allowed significant centralization and expansion in the textile industry during (5) this period, and at the same time the demand for cotton increased dramatically. American producers were able to meet this demand largely because of tile invention of the cotton gin by Eli Whitney in 1793. Cotton could be grown throughout the South, but separating the fiber—or lint—from the seed was a laborious process. Sea island cotton was
relatively easy to process by hand, because its fibers were long and seeds were (10) concentrated at the base of the flower, but it demanded a long growing season, available only along the nation’s eastern seacoast. Short-staple cotton required a much shorter growing season, but the shortness of the fibers and their mixture with seeds meant that a worker could hand-process only about one pound per day. Whitney’s gin was a hand-powered machine with revolving drums and metal teeth to pull cotton fibers away from (15) seeds. Using the gin, a worker could produce up to 50 pounds of lint a day. The later development of larger gins, powered by horses, water, or steam, multiplied productivity further.
The interaction of improved processing and high demand led to the rapid spread of the cultivation of cotton and to a surge in production. It became the main American (20) export, dwarfing all others. In 1802, cotton composed 14 percent of total American exports by value. Cotton had a 36 percent share by 1810 and over a 50 percent share in 1830. In 1860, 61 percent of the value of American exports was represented by cotton. In contrast, wheat and wheat flour composed only 6 percent of the value of American exports in that year. Clearly, cotton was king in the trade of the young republic. The (25) growing market for cotton and other American agricultural products led to an unprecedented expansion of agricultural settlement, mostly in the eastern half of the United States—west of the Appalachian Mountains and east of the Mississippi River.
3. All of the following are mentioned in the passage as reasons for the increased demand for cotton EXCEPT
(A) cotton’s softness
(B) cotton’s ease of processing
(C) a shortage of flax and wool
(D) the growth that occurred in the textile industry.
答案:C
上面是关于如何做好托福阅读的技巧方面指导和建议,考生朋友们要充分的扬长补短,把自己的优势发挥出来,同时自己的薄弱项目,这样才能争取程度的。祝各位考生取得理想成绩。
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