20. If you are a string performer, you have to _____________.
A. use your left hand to draw the bow and the right to move up and down
B. have your both hands perform the same movements.
C. own technique, musical knowledge and understanding
D. practice more and more without any training
19. In writing this passage, the purpose of the author is ___________.
A. to tell us we use different sense at paints and music
B. to recommend music needs more technique
C. to inform us that to become a musician needs long and arduous training
D. for the students who are to go in for music
18. B 判断推理题。本文讲的是如何克服羞怯心理，根据文意最有可能出现这类文章的是在杂志上，而报纸头版、百科全书以及理科教材要么太专业要么意义重大。
E
A painter hangs his or her finished pictures on a wall, and everyone can see it. A composer writes a work, but no one can hear it until it is performed. Professional singers and players have great responsibilities, for the composer is utterly dependent on them.
A student of music needs as long and arduous a training to become a performer as a medical student needs to become a doctor. Most training is concerned with technique, for musicians have to have the muscular proficiency of an athlete or a ballet dancer. Singers practice breathing every day, as their vocal chords would be inadequate without controlled muscular support. String players practice moving the fingers of the left hand up and down, while drawing the bow to and fro with the right arm----two entirely different movements. Singers and instruments have to be able to get every note perfectly in tune. Pianists are spared this particular anxiety, for the notes are already there, waiting for them, and it is the piano tuner's responsibility to tune the instrument for them. But they have their own difficulties; the hammers that hit the string have to be coaxed not to sound like percussion, and each overlapping tone has to sound clear. This problem of getting clear texture is one that confronts(使面对)student conductors: they have to learn to know every note of the music and how it should sound, and they have to aim at controlling these sounds with fanatical but selfless authority. Technique is of no use unless it is combined with musical knowledge and understanding. Great artists are those who are so thoroughly at home in the language of music that they can enjoy performing works written in any century.
17. D 细节理解题。本题根据第一段You can build your confidence by following some suggestions form doctors and psychologists可知答案。
16. A 句意理解题。文章最后一段提到：Just making the effort to control shyness can have many rewards这句话等同于D项。
15. D 主旨大意题。文章用了排比段落，先总说羞怯心理，然后分别介绍克服羞怯心理的办法。
18. Where would this article probably appear?
A. On the front page of a newspaper. B. In a popular magazine.
C. In a science textbook. D. In an encyclopedia(百科全书)。
[解题导语]
羞怯心理与生惧怕，本文教你如何克服羞怯心理，做个有胆识有魄力的人。
[答案与简析]
17．What is the source of the suggestions for fighting shyness?
A. The author of the article. B. Shy men and women.
C.Popular entertainers. D. doctors and psychologists.
16．Which of these can you conclude from reading the article?
A. The attempt to overcome shyness is always worthwhile.
B. Entertainers choose their work to fight shyness.
C. The attempt to overcome shyness is always successful.
D. Shy people never have any fen.
15．The main purpose of the article is to ________.
A. explain how shyness developed
B. prove that shyness can overcome
C. persuade readers that shyness is natural
D. recommend ways of dealing with shyness