Milk was one of the main human foods long before history was written．It will probably remain one as long as there are animals that give milk．The old word “milk” came from Sanskrit(梵文), one of the oldest languages known to man．A very old picture of milking, which was drawn five thousand years ago, has been found．
In the past, years long ago, people got their milk from their own animals．But in modern times new inventions made the milk industry a big business．In 1851 Gall Borden found a way to take some of the water from milk．This made milk keep longer．Four years later, Louis Pasteur introduced a way to kill the bacteria(细菌)in milk．Next a special milk bottle was made．This was followed by the invention of machines that could fill bottles with milk．These discoveries had a great effect on the milk industry．They meant that milk could be stored longer．
Some people believe that milk drinking will become less popular than it has been．But remember how long milk has been an important food and think of the many ways in which it is useful．It seems safe to say that the milk industry will always be important．
(1)
People began to milk animals ________．
[ ]
A．
five thousand years ago
B．
in the 1850s
C．
before history was written
D．
in recent years
(2)
Sanskrit is a language ________．
[ ]
A．
used by Europeans
B．
recorded in pictures
C．
known to people all over the world
D．
that has a long history
(3)
People did a lot of work to make milk ________．
[ ]
A．
easy to store
B．
easy to drink
C．
thicker
D．
more tasty
(4)
Which of the following is NOT true?
[ ]
A．
A picture of milking was discovered five thousand years ago．
B．
People drink milk as a kind of food．
C．
Many years ago people had to raise animals if they wanted to drink milk．
D．
Louis introduced a way to kill the bacteria in milk in 1855．
(5)
The writer doesn’t agree that ________．
[ ]
A．
milk is useful in many ways
B．
milk has been important to people for thousands of years．
C．
new inventions help people to keep milk much longer．
