music comes in many forms; most countries have a style of their own. -1- the turn of the century when jazz was born， america had no prominent -2- ofits own.no one knows exactly when jazz was -3- ，or by whom.but it began to be- 4- in the early 1900s.jazz is american contribution to -5 -music.

in contrast to classical music， which- 6 -formal european traditions， jazz is spontaneous and free form.it bubbles with energy， -7 -the moods， interests， and emotions of the people.in the 1920s jazz -8 -like america， and -9- it does today.the -10 -of this music are as interesting as the music -11 -.american negroes， or blacks， as they are called today， were the jazz -12- .they were brought to southern states -13 -slaves.they were sold to plantation owners and forced to work long- 14 -。

when a negro died his friend and relatives -15- a procession to carry the body to the cemetery.in new orleans， a band often accompanied the- 16- .on the way to the cemetery the band played slow， solemn music suited to the occasion. -17 -on the way home the mood changed.spirits lifted.death had removed one of their- 18 -，but the living were glad to bealive.the band played- 19 -music， improvising（即兴表演） on both the harmony andthe melody of the tunes -20- at the funeral.this music made everyone want to dance.it was an early form of jazz.

1.a.by b.at c.in d.on

2.a.music b.song c.melody d.style

3.a.discovered b.acted c.invented d.designed

4.a.noticed b.found c.listened d.heard

5.a.classical b.sacred c.popular d.light

6.a.forms b.follows c.approaches d.introduces

7.a.expressing b.explaining c.exposing d.illustrating

8.a.appeared b.felt c.seemed d.sounded

9.a.as b.so c.either d.neither

10.a.origins b.originals c.discoveries d.resources

11.a.concerned b.itself c.available d.oneself

12.a.players b.followers c.fans d.pioneers

13.a.for b.as c.with d.by

14.a.months b.weeks c.hours d.times

15.a.demonstrated b.composedc.hosted d.formed

16.a.demonstration b.processionc.body d.march

17.a.even b.therefore c.furthermore d.but

18.a.number b.members c.body d.relations

19.a.sad b.solemn c.happy d.funeral

20.a.whistled b.sung c.presented d.showed

1.【答案】b【解析】这里at the turn of the century表示的是“在本世纪初”这一具体时间，只有at可以用在这里。

2.【答案】d【解析】根据上文所说的大多数国家都有自己的音乐风格（style），而美国却没有自己突出的，后面也应该是风格，故选style。

3.【答案】c【解析】本句意为没有人知道爵士乐是什么时候发明的，由谁发明的。discover意为“发现”，act意为“行动，扮演”，invent意为“发明，design意为“设计”。故选invent。

4.【答案】d【解析】这里是说爵士乐被听到，所以用heard。listen的意思是“听”，而且句末须接介词to，a），b）两项意思不符。

5.【答案】c【解析】popular music是指“流行音乐”，与classical music（古典音乐）相对。爵士乐（jazz）是流行音乐的一种，故选popular。

6.【答案】b【解析】此句意为古典音乐遵循正规的欧洲传统。form意为“形成”，follow意为“遵循”，approach意为“接近，靠近”，introduce意为“引进，介绍”。

7.【答案】a 【解析】express意为“表达”，与后面的宾语moods（情绪）、interests（兴趣）、以及emotions（感情）相搭配。explain意为“解释，说明”，expose意为“揭露，使暴露”，illustrate意为“阐明”。