It is because English is being widely used at present __________.?

A.why we learn it hard         B.that we learn it hard ?

C.which we must learn　      D.when we should learn?

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Music comes in many forms; most countries have a style of their own. Poland has its folks. Hungary has its czardas. Argentina is famous for the tango. The U.S. is known for jazz, the type of music that has gained worldwide popularity.

Jazz is American contribution to popular music. While classical music follows formal European tradition(传统)，jazz is rather a free form. It is full of energy, expressing the moods, interests, and emotions (感情) of the people. It is breaking and exciting with a modern sound. In the 1920s jazz sounded like America. And so it does today.

The origins (起源)of the music are as interesting as the music itself. Jazz was invented by American Negroes, or blacks, as they are called today, who were brought to the Southern states as slaves. They were sold to farm owners and forced to work long hours in the cotton and tobacco fields. This work was hard and life was short. When a Negro died his friends and relatives would gather and carry the body to have a ceremony before they buried him.

There was always a band おwith them. On the way to the ceremony the band played slow, solemn music suitable for the situation. But on the way home the mood changed. Spirits lifted. Everyone was happy. Death had removed one of their members, but the living were glad to be alive. The band played happy music, this music made everyone want to dance. It was an early form of jazz.

Music has always been important in Negro life. The blacks, who were brought to America from West Africa, had a rich musical tradition. In the fields, they made up work songs. Singing made the hard work go faster. And when they got to Christianity, they made lovely spirituals, which have become an everlasting part of American music.

1．From the passage, we can see that jazz　　   .

A. is a kind of African music

B. started from Africa but is popular in America

C. was started by blacks working in Africa

D. was started by blacks in America

2．Jazz is a kind of music　　   .

A. almost the same as classical music

B. quite different from classical music

C. popular only in America

D. quite different from Africa music.

3．Generally speaking, Jazz is mostly a kind of　　   .

A. American music

B. African music

C. classical music

D. popular music played at funerals

4．Usually we may feel 　　   moods when we listen to jazz music.

A. sad and sorry

B. tiring and hard working

C. exciting and happy

D. lonely and sad

5．Jazz will always be connected with　　   .

A. American blacks

B. slavery in the United States

C. modern times

D. quick development of music

Every pet owner loves his pet. There is no argument here.

　　But when we asked our readers whether they would clone （克隆， 复制）their beloved animals, the responses（反应） were split almost down the middle. Of the 228 readers who answered it, 108 would clone, 111 would not and nine weighed each side without offering an opinion.

　　Clearly, from readers’ response, this is an issue that reaches deeply into both the joy and final sadness of owning a pet. It speaks, as well, to people’s widely differing expectations over the developing scientific procedure.

　　Most of the respondents who favored the idea strongly believed it would produce at least a close copy of the original; many felt the process would actually return an exact copy. Those on the other side, however, held little hope a clone could never truly recreate a pet, many simply didn’t wish to go against the natural law of life and death.

　　Both sides expressed equal love for their animals. More than a few respondents owned “the best dog/cat in the world”. They thought of their pets as their “best friend”, “a member of the family,”“the light of my life.” They told moving stories of pets’ heroism, intelligence and selfless devotion.

　　Then the loss is so disturbing---and the cloning so attractive. “People become very close to their animals, and the loss can be just as hard to bear as when a friend or family member dies,” says Gary Kowalski, author of Goodbye, Friend: Healing Wisdom for Anyone Who Has Ever Lost a Pet. “For me, cloning feels like an attempt to turn death away…It’s understandable. Death is always painful. It’s difficult to deal with. It’s hard to accept.”

　　But would cloning reduce the blow? This question seemed to be at the heart of this problem.

1.So far as the cloning of pets is concerned, a recent survey shows that, of all pet owners, ____.

2.While talking about the respondents from the readers, the expression “final sadness of owning a pet” refers to ____.

3.From what Gary Kowalski says, we can know that he ____.

4.What is the key question at the heart of the problem of cloning pets?