高中英语unit5period8grammar课堂达标训练含解析北师大版必修2

高中英语unit5period8grammar课堂达标训练含解析北师大版必修2内容摘要：

de in were made in Cremona， Italy， about 200 years violins sound better than any even sound better than violins made makers and scientists try to make instruments like the old Italian they aren’t the still prefer the old one really knows why these old Italian violins are so special， but many people think they have an answer. Some people think it is the age of the say that today’s violins will also sound wonderful some there is a problem all old violins sound the old violins from Cremona are age cannot be the must be something different about Cremona’s or those Italian violin makers. Other people think the secret to those violins is the the violin makers of Cremona knew something special about wood for the kind of wood may not be so may be more important to cut the wood in a special smallest difference will change the sound of the sometimes think that this is the secret of the they understand more than we do about how to cut the and shape may not be the answer measured these violins very can make new ones that are exactly the。