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Why are there more right-handed people than left-handed ones? Scientists now know that a person's two hands each have their own jobs. For most people, the left hand is used to find things or hold things. The right hand is used to work with things. This is because of the different work of the two sides of the brain (大脑). The right side of the brain, which makes a person's hands and eyes work together, controls(控制) the left hand. The left-side of the brain, which controls the right hand, is the centre for thinking and doing problems. These findings show that more artists should be left-handed, and studies have found that left-handedness is twice as common among artists than among people in other jobs.
No one really knows what makes a person become right-handed instead of left-handed. Scientists have found that almost 40% of the people become left-handed because their main brain is damaged(损害) when they are born. However, this doesn't happen to everyone, so scientists guess there must be another reason (原因) why people become left-handed. One idea is that people usually get right-handed from their parents. If a person does not receive the gene (基因) for right-handedness, he/she may become either right-or left-handed according to the chance (偶然性) and the people they work or live with.
Though right-handedness is more common than left-handedness, people no longer think left-handed people are strange or unusual. A long time ago, left-handed children were made to use their right hands like other children, but today they don't have to.
【小题1】 After studying works of art made at different times in history, the scientists found .
A. the art began from 1, 500 B. C.
B. the works of art ended in the 1950s
C. most people shown in the works of art are right-handed
D. most people shown in the works of art are left-handed
【小题2】 How many people in the world are left-handed now?
| A．Less than one sixth. |
| B．More than a half. |
| C．About 40%. |
| D．The passage doesn't tell us. |
| A．It's used to find or hold things. |
| B．It's used to work with things. |
| C．It's used to make a person's eyes work together. |
| D．It's the centre for thinking and doing problems. |
| A．No one really knows what makes a person become right-handed. |
| B．Left-handedness is cleverer than right-handedness. |
| C．Today children are not made to use their right hands only. |
| D．Scientists think there must be some reason why people become left-handed. |
| A．Scientists' New Inventions |
| B．Left-handed People |
| C．Which Hand |
| D．Different Brains, Different Hands. |
Michael Jordan was one of the most important basketball players in the world during the 1990s.He won the NBA’s Most Valuable Player Award five times.Jordan led(带领)the Chicago Bulls to his first there championships in 1991 ,1992and 1993.In October of 1993 he surprised his fans by retiring form basktball and became a professional baseball player.He said that playing baseball was an early dream of his .He played during the 1994 baseball season(赛季)for the Birmingham Barons.In March of 1995 he ended his baseball career and went back to the Bulls.With Jordan,the Bulls won there more championships in 1996,1997and1998.He retired form basketball in 1999.In the year 2000 he became one of the owners of the NBA’s Washington Wizards.In 2001 Jordan began thinking of another comeback as an NBA player .That fall ,at the age of 38,he returned once again to play for the Wizards.He played for two more full seasons and retired again in April of 2003.
根据短文内容，回答问题
1.How many championships did Jordan lead the Chicago Bulls to win?
2.Why did Jordan want to be a baseball player?
3.In which year did Jordan retire from basketball for the second time?
4.How many famous basketball teams are mentione(提到的)in the passage?Give the names.
5.What are you going to be when you grow up?
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