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閱讀理解
Most people around the world are right-handed. This also seems to be true in history. In 1979, scientists studied works(作品) of art made at different times from 1, 500 B. C. to the 1950s. Most of the people shown in these works are right-handed, so the scientists guessed that right-handedness has always been common through history. Today, only about 10% to 15% of the world's population is left-handed.
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 (大腦). 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 dealing with problems. These findings show that more artists should be left-handed, and studies have found that left-handedness is twice as common among artists as 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(損害) 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.
9. After studying the works of art, the scientists found ________.
A. the art began from 1, 500
B. the works of art ended in the 1950s
C. most people in the works are right-handed
D. most people in the works are left-handed
10. 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 article doesn't tell us.
11. What is the left hand used to do for most people?
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.
| 2014中考各科目復(fù)習(xí)資料匯總 | ||
|---|---|---|
| 語文:閱讀 詩歌 名句 綜合 | 作文:素材 范文 技巧 中考范文 | 數(shù)學(xué):填空 壓軸 模擬 解題 |
| 英語:單選 閱讀 易錯 綜合 | 作文:句型 模板 技巧 熱點話題 | 政治:選擇 問答 辨析 提綱 |
| 物理:易錯 選擇 重點 公式 | 化學(xué):認(rèn)識 解讀 演練 熱點難點 | 歷史:問答 考點 材料 基礎(chǔ) |
| 生物:選擇 提綱 考點 資料 |
地理:基礎(chǔ) 提綱 問答 熱點材料 | 2006--2012滿分作文匯總 |
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| 2013年部分省市中考試題匯總 | ||
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| 2013山東中考政治試題匯總 | 2013四川中考政治試題匯總 | 2013山東中考物理試題匯總 |
| 2013四川中考?xì)v史試題匯總 | 2013四川中考化學(xué)試題匯總 | 2013山東中考生物試題匯總 |
| 2013四川中考生物試題匯總 | 2013山東中考地理試題匯總 | 2013江蘇中考地理試題匯總 |
| 2013江蘇中考?xì)v史試題匯總 |
2013四川中考物理試題匯總 | 2013湖北中考政治試題匯總 |
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