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河南中考专项抓分卷·英语
①专项抓分卷五
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答客贝P2间
A
Silk,the word itself is beautiful.The story of silk started in China over 4,000 years ago.It says a
silkworm's cocoon fell into a woman's teacup.It then opened into a single,unbroken thread
(线).1.
The Chinese learned they could use the cocoons to make cloth that was both
beautiful to look at and soft to touch.
2.
In other countries,silk was valuable and not often seen.Often it was worth more
than gold.It's said that the secret finally got out when a princess left China to go to India.In her hair,
she secretly carried many silkworms.
By the year I A.D..silk was sold as far west as Rome,and all along the Silk Road.3.
Centuries later,in 1522,the Spanish brought silkworms to Mexico.
Nowadays people around the world still make many beautiful things from silk.Silk isn't only
beautiful.It seems that it's easy to break.4.
For example,it has been used to make bicycle
tires().And some doctors even use silk threads in the hospital.5.
This makes it great
for clothes like winter jackets,pants,and shoes.
All of this is from a little insect-the silkworm.That is the miracle(of silk.
A.Actually it's very strong.
B.Silk is also light and warm.
C.This was an important discovery.
D.Making silk was a protected secret in China for many years.
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E.Around the year 300,silk also traveled from China to Japan.
B
The invention of barcodes is based on a very simple idea.We only need to
give each product a specific number and print it.1.
We could simply print the
number itself.But this can cause problems.For example,an unclearly printed"seven"
could look like a“one”to a computer.It's also true for“three'”and“eight”.2.
We need a better way of printing numbers so that they can be read correctly at high speeds.
That's the problem barcodes solve.
Each number in a barcode is shown by seven blocks of the same size.3.
For example,
the number "one"is shown in turn by two white stripes(),two black stripes,two white stripes,and
one black stripe.4.
A barcode include