阅读理解
When I was a boy, my father told me that he could do anything he wanted to.Dad said that he wanted
to be the first to develop color prints in our city, and so he did.
When I was 16, Dad looked closely at the violin I played and announced that he wanted to make
one. He read about violin making, and then became a violinmaker at the age of 43.He bought the tools
and materials, opened a small store and set Mom up as the shopkeeper, while he worked at a local
company.He retired from the company 17 years later and continued to make violins and other instruments.
Dad often guessed why the Stradivarius violins sound so beautiful.Some experts claimed that it was
the unique varnish that gave those instruments their beautiful sound.Dad argued that chemists could
analyze the varnish-if that were the answer.
One of Dad's friends asked him once which kind of wood wasused to make violins.When Dad
explained that the top wasmade of spruce, his friend said that he had an old pieceof spruce Dad might be
interested in.He worked for the next 12 months making a violin from thewood that his friend had given
him.It proved to be a superior violin and it would become Dad's masterpiece.He was convinced that the
secret of the Stradivarius sound was in the wood itself.
Later, the instrument was stolen.Dad's spirit was broken by the robbery, and he stopped making
instruments.But he kept the music shop until he was 80 years old, selling guitars and violins.
My father has been gone for 14 years now.The violin has been missing for more than 25 years.
Somewhere a musician is playing a late20thcentury violin with an excellent tone.The owner today may
never understand why this ordinarylooking violin sounds so much like a Stradivarius.
1.The author mentions his father's developing color prints____ .
A. to show that his father's real interest was not in makingviolins
B. to prove that his father could do anything he wanted to
C. to give an example proving that his father was an inventor
D. to describe the real thing that made the author believe his father
2.What did the author's father think about Stradivarius violins?
A.The varnish was different from the others.
B.The way of making them was special.
C.The wood of the violins was special.
D.They could only be analyzed by chemists.
3.From the underlined sentence, we can learn that the author's father ____.
A. liked the violin very much
B. got crazy after this happened
C. lost interest in instruments
D. didn't want to become famous
4.How long did the author's father live after the violin was stolen?
A. About 11 years.
B. About 14 years.
C. About 25 years.
D. About 80 years.
5.We can infer from the last paragraph that the author ____ .
A.really hates the thief
B.misses his father a lot
C.really wants to play the violin
D.wonders who's playing the violin now
，读出电流表的示数为
；
，则R的阻值为__________
。