完形填空（共10小题；每小题２分，满分20分）阅读下面短文，掌握其大意，然后从21－30各题所给的ABC和D项中，选出最佳选项．The finest and most sought

完形填空（共10小题；每小题２分，满分20分）
阅读下面短文，掌握其大意，然后从21－30各题所给的ABC和D项中，选出最佳选项．
The finest and most sought-after violins were handcrafted by an Italian violin maker over 250 years ago. The man’s name was Antonius Stradivarius. He was born in 1644 and began his career 21 a violin maker’s apprentice (学徒). Working on his own by 1680, he became determined to make 22 that could reproduce tones as rich as those produced by the human voice. He 23 several shapes and styles for his violins until he arrived at a design that pleased him. During his career he crafted 1,100 violins. Those in 24 have become treasured possessions.
Unfortunately, the secret of the Stradivarius violin died with its maker. During his lifetime Stradivarius kept his notes safely 25 , even his two sons, who helped him in his workshop, did not know all the steps involved in each violin’s construction.
Through the years, many experts have offered 26 explanations for the unique tone of a “Strad”. Some say it is due to the violin’s shape. Others suggests that the secret 27 the special properties(特性) of the wood, which Stradivarius obtained from native Italian trees that no longer exist. The most widely accepted explanation is that it is created by the varnish（清漆） that the 28 used to coat his violins. Chemists have analyzed as closely as possible the varnish and have found its 29 has improved the sound of many violins. 30 , no other violin maker has been able to fully reproduce the tone of the Stradivarius’s violins.
21. A. with B. as C. for D. from
22. A. Instruments B. facilities C. equipment D. tools
23. A. investigated B. surveyed C. tested D. experimented
24. A. fashion B. existence C. possession D. use
25. A. protected B. buried C. hidden D. covered
26. A. possible B. accurate C. detailed D. persuasive
27. A. brings in B. takes in C. results in D. lies in
28. A. master B. violinist C. expert D. user
29. A. attention B. application C. invention D. foundation
30. A. Additionally B. Luckily C. Therefore D. Still 21—25 BACBC 26—30 ADABD

(答案→)21—25 BACBC 26—30 ADABD 解析：21.B以做学徒开始了他的生涯．as 放在表示职业的词前面，译为＂当；做＂．本题最大的干扰项是with．我们不能说他从一个学徒开始了他的生涯，应该是＂当学徒＂．22.A violin 是乐器，应该是instrument.23.C 他实验了几种形状和风格．意思是他做了不同形状和风格的小提琴并进行了实验（以发现哪种更好）．A. B只能表明调查（以获得事实和信息），experiment 后面要接on, test　有＂实验；测试＂的意思．24.B现存的小提琴成了宝贵的财产．因为在介绍250年前一个著名的小提琴制作手，所以用＂现存＂合乎题意．25.C　Strad 没有把制作的方法让人知道，所以是kept his notes safely hidden. 其他的确几个词都不能说明他人不知道这个事实．26.A下面提供了几种解释，但都是不太确定的，因此是possible,其他的三个选项都和实际的情况冲突．27.D.（小提琴独特的音质的）秘密就在于．．．．．．28.A　＂大师＂，指的是Strad.29.B化学家仔细分析了清漆并发现清漆的使用改进了小提琴的音质．application 在这里是＂使用；应用＂的意思．要不断提醒学生在学习过程中一词多意的现象，多积累．30.D still 表示转折关系．从上文中可知有很多种关于为什么Strad制作的小提琴的音质那么独特的解释，但却没有任何其他人可以完全（让自己制作的小提琴）发出同样的声音．．

我检查一下我的答案