Do you        to write with your left hand? If you do, you are one of the millions of “lefties” in the world. Why do some people use left hand more often than others? To understand left-handedness, it is necessary to look at the         . The brain is divided into two hemispheres（半球）. The left hemisphere is the center of language and logical thinking. This is where they do their math problems and memorize words. However, the         hemisphere controls how they understand ideas and         they respond（作出反应） to the five senses—sight, hearing,        , taste, and touch. The left hemisphere controls the right side of the body,          the right hemisphere controls the left side. Both sides of the body receive the          information from the brain because they are connected(联系). In right-handed people, the left hemisphere is stronger. In left-handed people, the right hemisphere is         .
Lefties prefer not only the left hand but also the left         . They would rather use the left foot to kick a ball because their whole body is “left-handed”.
From Newtown      Albert Einstein, Wen Jiabao to Obama, Choplin to Zhao Benshan, many    people are left-handed. Are you left-handed even though you are forced to write with your right hand? Don’t worry if you are, you are in good company.
A. enjoy           B. prefer           C. want
A. Body                B. hands             C. brain
A. right              B. left               C. middle
A. how               B. what             C. why
A. action               B. thinking         C. smell
A. although        B. while                C. or
A. same           B. different           C. difficult
A. weaker                B. bigger             C. stronger
A. head           B. ear               C. foot
A. interesting        B. famous              C. honest