6.Most musicians agree that the best violins were first made in Gremona,Italy,about 200 years ago.
These violins sound better than any others.They even sound better than violins made today.
Violin makers and scientists try to make instruments(樂器) like the Italian violins.But they aren't the same.Musicians still prefer the old ones.
Some people think it is the age of the violins.But not all old violins from Gremona are special.So age cannot be the answer.
The people think the secret to those violins is the wood.The wood must be from certain kinds of trees.But the kind of wood may not be so important.It may be more important to cut the wood in a special way.Wood for a violin must be cut very carefully.It has to be the right size and shape.The smallest difference will change the sound of the violin.Musicians sometimes think that this was the secret of the Italians.Maybe they understood more than we do about how to cut the wood.
Size and shape may not be the answer either.Scientists can make new ones that are exactly the same size and shape.But the new violins still do not sound as good as the old ones.Some scientists thnk the secret may be the varnish(漆).Varnish is what covers the wood of the violin.It makes the wood shiny.It also helps the sound of the instrument.But no one knows what the Italian makers used in their varnish.
4.The passage is about.C
A.making violins
B.scientific ideas
C.the old Italian violins
D.musical instruments
5.Musicians think that modern violins.C
A.will sound better and better in the future
B.will sound worse and worse in the future
C.sound less wonderful than the old Italian ons
D.sound really the same as the old Italian ones
6.Some scientists think the Italian violin makers.B
A.did not know much about violins
B.knew something secret
C.used many kinds of wood
D.were lucky
7.Violins made todayA.
A.can be the same shape as the old ones
B.sound the same as the old ones
C.a(chǎn)re a bit better than the old ones
D.have the same varnish as the old ones.