Question

【題目】 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 1,500 B.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(人口) is left-handed.

Why are there more right-handed people 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 findings 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 more 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.

【1】How many people in the world are left-handed now?

A.Less than one sixth.B.More than a half.

C.About 40%.D.The passage doesn’t tell us.

【2】According to the passage, which of the following is NOT true?

A.No one really knows what makes a person become right-handed.

B.Left-handedness is cleverer than right-handedness.

C.Today children are not made to use their right hands only.

D.Scientists think there must be some reason why people become left-handed.

【3】The best title for this passage is _______

A.Scientists’ New InventionsB.Left-handed People

C.Which HandD.Different Brains, Different Hand

Answer 1

【答案】

【1】A

【2】B

【3】C

【解析】

短文敘述了全世界大多數(shù)人都是右撇子。歷史上似乎也是如此，1799年，科學(xué)家研究從公元前1500年到1950年代的藝術(shù)作品。展示的大多數(shù)是右撇子的作品，因此科學(xué)家們猜測，右撇子一直是常見的。如今，只有約10%至15%的世界人口是左撇子�，F(xiàn)在雖然右撇子比左撇子更常見，但是人們不再認(rèn)為左撇子是奇怪的或不尋常的。

【1】細(xì)節(jié)理解題。根據(jù)第一段最后一句“Today, only about 10% to 15% of the world’s population(人口) is left-handed.”可知，如今只有約10%至15%的世界人口是左撇子，也就是不到六分之一。故選 A

【2】推理判斷題。根據(jù)文章第3段“No one really knows what makes a person become right-handed instead of left-handed”可知，沒有人真正知道是什么原因，讓一個人使用右手而不是左手，故選項(xiàng)A正確；根據(jù)最后一段“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，現(xiàn)在孩子們不用必須用右手，故選項(xiàng)C正確。根據(jù)第三段“so scientists guess there must be another reason why people become left-handed.”可知科學(xué)家們認(rèn)為有人變成左撇子一定有另外的原因，故選項(xiàng)D正確；唯獨(dú)文章沒有提到左撇子比使用右手的人更聰明，故選項(xiàng)B錯誤。故選B。

【3】主旨大意題。本文主要討論的是左撇子還是使用右手的話題，從古到今，作者都做了詳細(xì)地闡述。故選C。