当前位置: 首页 > 自考-工商企业管理(专科) > 英语(一)(00012) > 1-1.The right-handers are nine times as many as the left-handers.

1.【案例题】

1.The Truth about Left-Handed People

About 90% of people in the world today are right-handed.The other 10% are left-handed,including Obama,the President of the US.Every day,left-handed folks quietly face problems.It could be something as simple as driving a car or using a can opener.

Why are so few of us left-handed?One theory is that handedness (hand preference) could be a result of genetics.Scientists say that there are two genes (基因) associated with handedness.One is the D gene.It is more frequent in the population and promotes (促成) right-hand preference.The other is the C gene.It has the ability to promote a preference for either hand.When the C gene is present,there is a 50% chance that a person could be right- or left-handed.

Another theory has to do with human brains,which are made up of two halves.If the left half is more powerful,then one is most likely right-handed.But with left-handers,it is more complicated.Seventy percent of them are also left-brain dominant (占优势的).The other 30% have right-side dominant brains.

During the 18th and 19th centuries,left-handedness was considered a disability.But not all of the myths about left-handers are bad.One myth suggests that they are more creative and smarter than the right-handers.So far scientific research has yet to find any truth to these claims.In fact,a 2013 survey out of New Zealand found that left-handers and right-handers were the same.

Life might be a little more complicated for left-handers when it comes to cutting a piece of paper or opening a bottle of wine.However,it seems to be a good sign if you are trying to make it to the White House.

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1-1.The right-handers are nine times as many as the left-handers.

A

True

B

False

C

Not Given

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1-2.Using a can opener could be a problem for left-handers.

A

True

B

False

C

Not Given

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1-3.Men are more likely to be left-handed than women.

A

True

B

False

C

Not Given

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1-4.Some scientists believe that handedness is decided by genes.

A

True

B

False

C

Not Given

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1-5.Most left-handers are right-brain dominant.

A

True

B

False

C

Not Given

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1-6.In the 19th century,left-handedness was no longer considered abnormal.

A

True

B

False

C

Not Given

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1-7.Right-handers live longer than left-handers.

A

True

B

False

C

Not Given

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1-8.Left-handers are proved to be cleverer.

A

True

B

False

C

Not Given

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1-9.The New Zealand survey found left-handers differ greatly from right-handers.

A

True

B

False

C

Not Given

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1-10.There are not enough specially-designed tools for left-handers.

A

True

B

False

C

Not Given

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