What do Napoleon, Clinton and Wang Nan have in common? They are all left-handed. Today about 15% of the number of people is left- handed . But why are people left- handed? The answer is the way the brain（大脑）works. The brain has two halves- the right half and the left half. The right half controls（控制）the left side of the body, and the left controls the right side of the body. So right handed people have a strong left brain, and left- handed people have a strong right brain.
The two halves of the brain are about the same size. But each side controls different things. The left side controls language, maths and logic（逻辑）. When you remember new words, or when you put things in order, you use your left side.
The right side of the brain controls your love of art, colour and music. It is also good at recognizing（认识）faces.
This does not mean that all artists are left – handed and all accountants（会计）are right - handed. Some right- handers have a strong right brain, and some left handers have a strong left bran.
根据短文内容，选择最佳答案，并将其标号填入括号内。
(1) The phrase "in common" in the first sentence means________.
A. the same B. different C. strange D. interesting
(2) People are right- handed or left - handed is mostly decided by ________.
A. their parents B. their minds
C. the way the brain works D. the way the head works
(3) Each side of the brain________.
A. likes music and maths B. controls different things
C. controls the same thing D. has two halves
(4) When you are singing you are using your________.
A. logic thinking B. heart
C. right brain D. left brain
Key:(1) — (4) ACBC
