阅读理解,要详解,谢谢What is the most important invention of all time?

阅读理解,要详解,谢谢What is the most important invention of all time?
What is the most important invention of all time?Is it the written word that helps us record information?Is it the telephone that lets us talk to people from all over the world?Is it the car that lets us travel at a great speed to meet others?Umberto Eco,an Italian writer,thinks it is something quite different.He says the most important invention might be right in front of our eyes.He is talking about a simple pair of glasses.
Eyeglasses were invented around 1000 years ago.Before glasses were invented,writers,scientists or teachers who could not see properly had to memorize everything.After about ten years of poor eyesight ,they could not remember well enough and could not work.
Having glasses meant that people could work into their old age.People who wanted to remember information could write it down and read it.Eyeglasses are one of the world’s greater inventions and were probably worn by the people who designed the first telephone and car.
( ) 1.The written word is important because______
A.it helps us understand the history B .it helps us record information
C.it helps us read information.D.it is the most important invention
( ) 2.Umberto Eco thinks _______ is the most important invention
A.the telephone B.the car C.a pair of glasses D.the bike
( ) 3.Before glasses were invented,people who could not see properly had to ______everything.
A.memorize B.write down C.read D.listen to
( ) 4.What happened after glasses were invented?
A.People could not remember well enough.
B.people didn’t work harder than before.
C.People could write information down and read it.
D.People remembered less information than before.
( ) 5.From the passage,we learn that ___________
A .eyeglasses were invented about 100 years ago.
B.people used to stop reading because of poor eyesight
C.the author of the passage probably comes from America.
D.people who designed the first car probably wore glasses.

1.选B Is it the written word that helps us record information?
2.选C He says the most important invention might be right in front of our eyes.He is talking about a simple pair of glasses
3.选 A scientists or teachers who could not see properly had to memorize everything.
4.选C People who wanted to remember information could write it down and read it
5.选B After about ten years of poor eyesight ,they could not remember well enough and could not work.