2017托福100篇阅读理解试题（二十七）_第2页

　　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)

　　参考答案：ACBDA ADBD