Do you believe that only boys do well in science?Does it seem to you that girls have better voeabularies than boys?In your opini

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问题     Do you believe that only boys do well in science?Does it seem to you that girls have better voeabularies than boys?In your opinion,are boys better at building things?If your answer to each ofthose questions is“Yes”.you are fight according to an article in Current Science.There are exceptions,but here are the facts.
    0n the average.males score higher on tests that measure mathematical reasoning,mechanicalability,and problem—solving skills.Females show superior ability in tests measuring vocabulary,spelling and memory.But these differences will probably not always exist.In the future,a person’s abilitiesmay not be determined by sex.As one scientist says,“Nothing is impossible for a person to be or do if he or she really wants it.”
    In several recent studies.young babies have been observed and tested to discover how differentabilities are developed.A scientific team headed by Jerome Kagan,a psychologist at Harvard University.is studying the thinking ability of 1 1 months old children.The test is a simple one.The baby,while seated on its mother’s lap,watches a“show’’On a puppet theater stage.
    In Act I of the show.an orange-colored block is 1ifted from a blue box and moved slowly across the stage.Then it is returned to the box.This is repeated six times.Act II is similar,except that the orange block is smaller.Baby boys do not react at all to the difference in the size of the block,but girls immediately become excited and begin to babble.They seem to be trying to talk.
  It is known that bones,muscles,and nerves develop faster in baby girls.Usually,too,baby girls talk at an eadier age than boys do.Scientists think that there is a physical reason for this.They believe that the nerve endings in the left side of the brain develop faster in girls than they do in boys.And it is this side of the brain that strongly influences an individual’s ability to use words,spell,and remember things.By the time they start school,therefore,little girls have an head start on boys.Girls arephysically more ready to remember facts,to spell,and to read.These,of course,are skills that are important in elementary schoo1.
  But what has been happening to baby boys all this time?They have been developing somethingcalled aggression.An aggressive person has courage and energy.He feels strong and independent.He is often the first one to start a fight.
Concerning the difference between baby boys and girls in physical development of ability scientists believe( ).

选项 A、the nerve endings in the left side of the brain develop faster in baby boys
B、an individual’s ability to use words,to spell,and to remember things is strongly influenced by the right side of the brain
C、both baby boys and baby girls talk at an early age
D、there is a physical reason for the difference in the development of abilities of baby boysand baby girls

答案D

解析 第五段提到,女孩子的左脑优势比男孩子早,而左脑影响个体的语言能力和记忆能力,所以女孩子学会说话也往往比男孩子早,故选D。
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