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    nba转播骑士vs公牛地方体育台:托??际酝?/h1>

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<div class=

    2019托??际钥记氨乜丛亩辆涫蕴?

    2019-08-15 16:20:08来源:托??际酝?/span>分享
    导读:阅读是我们考试提分的一个重要的部分,想要考试获高分阅读必不可少,小编为大家整理了这篇托??际栽亩潦蕴?,一起来看看吧!

    骑士vs勇士第7场腾讯 www.rfkey.net 很多考生对阅读都是又爱又恨,因为他是我们提分的关键点,但是想要获得高分并非易事,小编为大家整理了这篇阅读试题,在坦途网托??际云档?/span>还有很多相关的试题内容和托??际允奔?,现在我们就一起来看看这篇文章吧!

    PASSAGE 53

    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 é ne-Antoine de R é 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

    (C) Important inventors in its long history

    (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

    (C) crude

    (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.

    (C) Few people were interested in the Renaissance style of glass fibers.

    (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

    (C) shorter and more easily broken

    (D) longer and more durable

    5. The phrase this material in line 16 refers to

    (A) glass fibers

    (B) decorations

    (C) ornaments

    (D) novelties for collectors

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

    (A) easily broken

    (B) roughly made

    (C) hairy

    (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

    (C) Putting silk thread in the center of the fibers

    (D) Using yarn reels

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

    (A) experienced

    (B) recognized

    (C) explored

    (D) increased

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

    (A) invention (line 7)

    (B) circumference (line 17)

    (C) manufacturing process (line 24)

    (D) bushing (line 25)

    PASSAGE 53 ACBDA ADBD

    这篇文章的到这里就结束了,相信大家在这里多少都会学到一些新的内容,小编做为大家坚实的后背力量,会不断为大家整理更多的考试素材和相关内容,希望通过大家的努力最终在托??际?/strong>中都能取得自己理想的成绩!

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