老托福阅读100篇之玻璃纤维的使用_资料下载

老托福阅读100篇之玻璃纤维的使用

时间：2015-09-01 16:29:12 / 编辑：Lee

　　老托福阅读100篇相对TPO要简单一些，也是伴随托福备考学员的很重要的一份资料，对于基础薄弱，做TPO真题阅读需要过渡的考生来说再适合不过了，今天一诺留学小编给大家分享的是老托福阅读100篇之玻璃纤维的使用方法，希望考生认真练习。

　　玻璃纤维的使用方法

　　Glass fibers have a long history. The Egyptians made coarse fibers by 1600 B.C., and fibers survive as decorations on Egyptian pottery dating back to 1375 B.C. During the Renaissance (fifteenth and sixteenth centuries A.D.), glassmakers from Venice used glass fibers to decorate the surfaces of plain glass vessels. However, glassmakers guarded their secrets so carefully that no one wrote about glass fiber production until the early seventeenth century.

　　The eighteenth century brought the invention of "spun glass" fibers. R¨|ne-Antoine de R¨|aumur, a French scientist, tried to make artificial feathers from glass. He made fibers by rotating a wheel through a pool of molten glass, pulling threads of glass where the hot thick liquid stuck to the wheel. His fibers were short and fragile, but he predicted that spun glass fibers as thin as spider silk would be flexible and could be woven into fabric.

　　By the start of the nineteenth century, glassmakers learned how to make longer, stronger fibers by pulling them from molten glass with a hot glass tube. Inventors wound the cooling end of the thread around a yarn reel, then turned the reel rapidly to pull more fiber from the molten glass. Wandering tradespeople began to spin glass fibers at fairs, making decorations and ornaments as novelties for collectors, but this material was of little practical use; the fibers were brittle, ragged, and no longer than ten feet, the circumference of the largest reels. By the mid-1870's, however, the best glass fibers were finer than silk and could be woven into fabrics or assembled into imitation ostrich feathers to decorate hats. Cloth of white spun glass resembled silver; fibers drawn from yellow-orange glass looked golden.

　　Glass fibers were little more than a novelty until the 1930's, when their thermal and electrical insulating properties were appreciated and methods for producing continuous filaments were developed. In the modern manufacturing process, liquid glass is fed directly from a glass-melting furnace into a bushing, a receptacle pierced with hundreds of fine nozzles, from which the liquid issues in fine streams. As they solidify, the streams of glass are gathered into a single strand and wound onto a reel.

　　1. Which of the following aspects of glass fiber does the passage mainly discuss?

　　(A) The major developments in its production

　　(B) Its relationship with pottery making

　　(D) The variety of its uses in modern industry

　　2. The word "coarse" in line 1 is closest in meaning to

　　(A) decorative

　　(B) natural

　　(D) weak

　　3. Why was there nothing written about the making of Renaissance glass fibers until the seventeenth century?

　　(A) Glassmakers were unhappy with the quality of the fibers they could make.

　　(B) Glassmakers did not want to reveal the methods they used.

　　(D) Production methods had been well known for a long time.

　　4. According to the passage , using a hot glass tube rather than a wheel to pull fibers from molten glass made the fibers

　　(A) quicker to cool

　　(B) harder to bend

　　(D) longer and more durable

　　5. The phrase "this material" in line 16 refers to

　　(A) glass fibers

　　(B) decorations

　　(D) novelties for collectors

　　6. The word "brittle" in line 17 is closest in meaning to

　　(A) easily broken

　　(B) roughly made

　　(D) shiny

　　7. The production of glass fibers was improved in the nineteenth century by which of the following

　　(A) Adding silver to the molten glass

　　(B) Increasing the circumference of the glass tubes

　　(D) Using yarn reels

　　8. The word "appreciated" in line 23 is closest in meaning to

　　(A) experienced

　　(B) recognized

　　(D) increased

　　9. Which of the following terms is defined in the passage ?

　　(A) invention (line 7)

　　(B) circumference (line 17)

　　(D) bushing (line 25)

　　答案：ACBDA ADBD

　　以上内容就是老托福阅读100篇之玻璃纤维的使用介绍，希望对大家的托福考试有帮助。如需了解更多留学考试的相关信息，欢迎拨打一诺留学的免费热线400-003-6508或者010-62680991进行出国留学咨询，或者点击一诺留学官方网站http://www.yinuoedu.net/页面的“在线咨询”与一诺留学专家直接对话。

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