Glass fibers are extremely strong for their weight, they are stronger
than steel. They are made by forcing molten glass through tiny holes
called spinnerets. As many as four hundred spinnerets are placed
together, and threads of glass much thinner than human hairs are drawn
off at great speed-mieles of threads per minute. As they speed along,
the threads are coated thinly with a type of glue and twisted into yarn.
The glass fibers are used with plastics to make boats and car bodies.
They are also woven into heavy cloth for window draperies and into
strong belts for making tires stronger.
A special kind of glass fiber is causing a revolution in communications.
A signal of light can be made to travel along the fiber for very long
distances. By changing the quality of the light, many messages can be
sent at once along one strand of glass.new
office building are being “wired” with glass fibers as they are built.
The glass fiber will be used to connect telephones and computers in ways
that not long ago were either impossible or too expensive.
Glass wool traps air in a thick, light blankets of fibers. This blanket
in then put into walls and ceilings to keep warm air in during the
winter and cool air in during the summer.
To make glas wool, molten glass is fed into a spinning drum with many
holes in it. As the glass threads stream out of the holes, they are
forced downward by a blast of hot air and through a spray of glues. The
threads are then further blown about to mic them up as they fall in a
thick mat on a moving belt.
The glass we see through and drink out of has many, many other uses besides the ones described here.
1. What was the author’s main purpose in wtiting the article?
a. To inform you how s[ecial kinds of glass are made and used
b. To persuade you to investigate the many uses of glass beyond those mentioned in the article
c. To inform you about the strength of glass fiber
d. To inform you that glue is used to hold strands of glass together
2. The word “special” in the second paragraph is closest in meaning to:
a. Distinct among others of kind
b. Additional
c. Common
d. Species
3. Glass fiber are made by forcing molten glass through:
a. Spinners
b. Spiderets
c. Spinnerets
d. Spinets
4. The word changing in the second paragraph could best be replaced by the word:
a. Altering
b. Boring
c. Bringing
d. Doing
5. What are glass fibers woven into cloth for?
a. Draperies
b. Cars and boats
c. Glasses
d. Glue
6. The word fed in the fourth paragraph means:
a. To give food to
b. To minister to
c. To support
d. To supply
7. The word they in the second sentence of the first paragraph refers to:
a. Human hair
b. Weight
c. Glass fibers
d. Yarn
8. The word it in the fourth paragraph refers to:
a. Molten glass
b. Glass wool
c. Spinning drum
d. Holes
9. The following sentence would best complete which paragraph? “this improvement in technology is expected to continue.”
a. Paragraph 1
b. Paragraph 2
c. Paragraph 3
d. Paragraph 4
10. A signal of what can be made to travel along fiber for very long distances?
a. Heat
b. Wave
c. Wool
d. Light
Kunci jawaban
1. A
2. A
3. C
4. A
5. A
6. D
7. C
8. C
9. B
10. D
sumber http://fckzryo.wordpress.com/2012/05/01/soal-reading/
