题目内容
12.Most people around the world are right-handed.This also seems to be true in history.In 1799,scientists studied works of art made at different times from 1,500B.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 pople than left-handed ones?Scientists now know that a person's two hands each have their own jobs.For most people,the 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.The right side of the brain,which makes a person's hands and eyes work together,controls the left hand.The left-side of the brain,which controls the right hand,is the centre for thinking and doing problems.These finding 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 when they are born.However,this doesn't happen to everyone,so scientists guess there must be another reason 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-handed or left-handed according to the chance 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.
32.After studying works of art made at different times in history,the scientists foundD.
A.the art began from 1,500B.C.
B.the works of art ended in the 1950s
C.most people shown in the works of art are left-handed
D.most people shown in the works of art are right-handed
33.What is the hand for most people used to do?B
A.It's used to work with things.
B.It's used to find or hold things.
C.It's used to make a person's eyes work together.
D.It's the centre for thinking and doing problems.
34.According to the passage,which of the following is NOT true?C
A.No one really knows what makes a person become right-handed.
B.Today children are not made to use their right hands only.
C.Left-handedness is cleverer than right-handedness.
D.Scientists think there must be some reason why people become left-handed.
35.The best title for this passage isA.
A.Which Hand
B.Left-handed People
C.Scientists'New Inventions
D.Different Brains,Different Hands.
分析 本文主要讨论的是左撇子还是使用右手的话题,从古到今,从科学到一般的看法,作者都做了详细地阐述.
解答 66.D.细节理解题.根据In 1799,scientists studied works 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.可知在1799年,科学家们研究艺术在不同时期,从公元前1500年创作的作品到20世纪50年代.在这些作品中的大部分人是右撇子.故选D.
68.B.细节邻居题.根据For most people,the left hand is used to find things or hold things.可知对于大多数人来说,左手是用来寻找东西或拿东西..故选B.
69.C.细节理解题.根据文章第3段No one really knows what makes a person become right-handed instead of left-handed.可知没有人真正知道是什么让一个人常用右手而不是左手,说明A正确,A long time ago,left-handed children were made to use their right hands like other children,but today they don't have to.可知很久很久以前,左撇子儿童想自己的右手像其他孩子一样,但今天他们不需要,说明B正确.so scientists guess there must be another reason why people become left-handed.可知,因此科学家想之所以会变成左手一定有另一个原因.说明D正确.唯独文章没有提到左撇子比使用右手的人更聪明,故C项Left-handedness is cleverer than right-handedness错误.故选C.
70.A.主旨大意题.根据Most people around the world are right-handed及下文,可知本文主要讨论的是左撇子还是使用右手的话题,从古到今,作者都做了详细地阐述.故A项正确.故选A.
点评 本文是一个科教类阅读理解,题目涉及多道细节理解题,做题时结合原文和题目有针对性的找出相关语句进行仔细分析,结合选项选出正确答案.推理判断题也是要在抓住关键句子的基础上合理的分析才能得出正确答案,切忌胡乱猜测,一定要做到有理有据.
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