Most people around the world are right-handed. This also seems to be true in history. In 1799, scientists studied works(作品) 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 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 left 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 (大腦). The right side of the brain, which makes a person’s hands and eyes work together, controls(控制) 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 than 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(損害) when they are born. However, this doesn’t happen to everyone, so scientists guess there must be another reason (原因) 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-or left-handed according to the chance (偶然性) 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.
小題1: After studying works of art made at different times in history, the scientists found       .
A. the art began from 1, 500 B. C.
B. the works of art ended in the 1950s
C. most people shown in the works of art are right-handed
D. most people shown in the works of art are left-handed
小題2: 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.
小題3: What is the left hand for most people used to do?
A.It’s used to find or hold things.
B.It’s used to work with things.
C.It’s used to make a person’s eyes work together.
D.It’s the centre for thinking and doing problems.
小題4:  According to (根據(jù)) 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.
小題5:The best title(標(biāo)題) for this passage is       .
A.Scientists’ New Inventions
B.Left-handed People
C.Which Hand
D.Different Brains, Different Hands.

小題1:C
小題1:A
小題1:A
小題1:B
小題1:B,所給答案不恰當(dāng)。

小題1:根據(jù)第一段In 1799, scientists studied works(作品) 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,描述,可知選C
小題1:根據(jù)第一段Today, only about 10% to 15% of the world’s population is left-handed.可知只有不到六分之一的人是左撇子,故選A
小題1:根據(jù)第二段For most people, the left hand is used to find things or hold things. 描述,可知選A
小題1:根據(jù)短文第一段及下文Scientists have found that almost 40% of the people become left-handed because their main brain is damaged(損害) when they are born.可知,左撇子在藝術(shù)方面有天賦,是因?yàn)榇竽X方面的原因,并不見得一定聰明,故選項(xiàng)B描述錯(cuò)誤
小題1:這篇短文主要介紹了左撇子的人的特點(diǎn)及左撇子形成的原因,故選B,左撇子.
練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目:初中英語 來源:不詳 題型:閱讀理解

Shane Battier (肖恩巴蒂爾) is a famous basketball player. Now he plays in Houston Rockets (休斯頓火箭隊(duì)). Yao Ming is also in the team. Shane Battier was born in 1978 in Michigan. He is 2.03 meters tall. He loves his parents very much. He always remembers their words: Be kind to others. In Shane Battier's everyday life, he likes playing golf and tennis. He also likes playing chess. His favorite film is Meet the Parents. His favorite singer is Marvin Gaye. He hopes to be a boss (老板) in the future.
He began to play basketball at the age of four. In 2006, he joined Houston Rockets, and became one of the most important players. 31, a familiar number, is often shouted in the game More and more basketball fans regard him as a hero! He is a team-player. He once said, "There are many excellent players in our team, so I shouldn't only try to show myself, instead I will try my best to help my partners to play well. Teamwork is the most important."
It is his hard work that makes him successful and famous. Let's wish him good luck in the future.
小題1:Shane Battier likes playing golf, tennis and chess.
小題2:He wants to be a singer like Marvin Gaye in the future.
小題3:Shane Battier and Yao Ming play in the same team.
小題4:His number in Houston Rockets is 31.
小題5:Shane Battier only wants to show himself in any games.

查看答案和解析>>

科目:初中英語 來源:不詳 題型:閱讀理解


Welcome to the 2012 London Olympic Games!
Archery

Archery has a 10,000 year history, when bows and arrows were first used for hunting and war.
Archery first appeared at the Paris Olympics of 1990. It was removed after 1908 and only returned to the Olympics at Munich in 1972.
Did you know?
In the 14th century, archery was so important that as English law required every man, aged seven to 60, to practise it.
Badminton

This sport was invented by British soldiers in India who called it Poono, the same name as the town in which they lived.
It was first played at the Olympics in 1992 at Barcelona. Although the rules of the modern sport were developed in England, Asian countries are now the best.
Did you know?
The best balls are said to be made from the feathers of the left wing of goose.
Football

There are two medal competitions for Olympic football, one for men’s teams and one for women’s.
Football was first played at the 1908 Olympic Games and it has been played at every Olympic Games ever since, except for Los Angeles 1932.
Did you know?
Hungary has won three football gold medals-more than any other country.
Taekwondo

This Korean sport’s name means “the way of the hand and foot”. The players get points by hitting each other with these two parts of the body only. The players mustn’t lie on the floor and no equipment can be used.
Taekwondo first appeared at the 2000 Sydney Games.
Did you know?
Over 60 million people from 190 countries around the world regularly take part in this sport.
 
小題1:Who invented the sport of badminton?
A.Indians.B.British.C.Chinese.D.Koreans.
小題2:Which of these sports appeared earliest at the Olympics?
A.Archery.B.Badminton.C.Taekwondo.D.Football.
小題3:Which sport was first named after a town?
A.Badminton.B.Football.C.Taekwondo.D.Archery.
小題4: Which of the following picture shows the sport of “Taekwondo”?
A.B.C.D.
小題5: Where can you most probably find web page?
A.Sydney 2000.com
B.Beijing 2008.com
C.Guangzhou 2010.com
D.London 2012.com

查看答案和解析>>

科目:初中英語 來源:不詳 題型:閱讀理解


小題1:How many parts does the book have?
A.1B.4 C.18D.233
小題2: If you’re interested in shopping you can read _____.
A.Chapter 3B.Chapter 8 C.Chapter 16D.Chapter 18
小題3: The book does NOT include _____.
A.help with European languages
B.information about visas
C.ideas about what to take on a trip
D.a(chǎn) section about traveling with pets

查看答案和解析>>

科目:初中英語 來源:不詳 題型:閱讀理解

In the US, the most popular way to welcome the new year is with a big party. Some parties are at private homes. But in recent years, it has become more and more common for Americans to go to a hotel or eating-place on the night of December 31st. There, they can eat a big dinner, drink champagne, and dance to orchestra music.
Most New Year’s parties are usually noisy. People shout and sing. And often, guests blow on small noisemakers when the new year arrives at midnight. This tradition of noise making is believed to start centuries ago. People thought that loud sounds would drive away the bad spirits of the old year.
The biggest, noisiest New Year’s party in the US takes place in Times Square in New York. Thousands of people gather(聚集) there. Some of them ring bells and set fireworks. Others blow whistles of car horns(喇叭). And at twelve o’clock, they begin to cheer as an electric sign in the shape of a red apple lights up on top of a tall building.
The Times Square celebration includes another well-known American tradition. Since 1929, the band of musician Guy Lombardo has given a concert on New Year’s Eve. Guy Lombardo died in 1977. But, Bill Lombardo, has kept the tradition alive with a band concert at a New York city hotel. When the crowds in Times Square start cheering the arrival of the new year, television cameras show the band playing the song Auld Lang Syne.
小題1: The most usual way to welcome the new year in the US is ________.
A.to go shoppingB.to meet friendsC.to travel abroadD.to hold a big party
小題2: The biggest New Year’s party in the US is __________.
A.in Central ParkB.in HollywoodC.in Times SquareD.in Disneyland
小題3: In the past, some American people made big noise when the new year arrived ________
A.to express their friendshipB.to drive away the bad spirits
C.to make others more excitedD.to give best wishes to each other
小題4:In 1929 a concert on New Year’s Eve was given by _________.
A.the band of Guy LombardoB.the band of Bill Lombardo
C.the band of Johann StraussD.the band of Elvis Aaron Presley

查看答案和解析>>

科目:初中英語 來源:不詳 題型:完形填空


Do you know who invented tea? It is said that the emperor Shen Nong  discovered   tea when he was boiling drinking water 21 an open fire. Some leaves from a nearby tree fell into the water and the leaves were in the water for  22 . The emperor noticed that the leaves in the water produced a  23   smell. Later he decided 24  the hot water with the leaves. It was quite delicious. And  25 , one of the worl’s favorite drinks was invented.
26 is the home of tea. And tea has more than 4,000 years history. 27  the three drinks—tea, coffee and cocoa, tea is drunk by  28  people in the world. Tea  29 China began to be known by the world over a thousand years ago and has been an important Chinese export (出口商品) 30  .
Tea leaves  31  mainly in the south of the Yangtze River, 32 the warm climate (氣候)there. Longjing, Wulong, Pu’er and Tieguanyin are all  33   kinds of tea.
Over the past centuries, Chinese people  34   their tea culture(文化), including tea planting, tea-leaf picking, tea making and so on. We know tea is  35   a popular topic(主題) in dances, songs, poems and novels.
小題1:
A.in B.byC.overD.to
小題2:
A.sometimesB.some timeC.some timesD.some days
小題3:
A.pleasantB.pleasedC.badD.terrible
小題4:
A.not to tasteB.to tasteC.tastingD.taste
小題5:
A.by the wayB.on the wayC.on its wayD.in this way
小題6:
A.JapanB.ChinaC.AmericaD.England
小題7:
A.InB.ForC.OfD.By
小題8:
A.the number ofB.a(chǎn) number of
C.a(chǎn) large number ofD.the largest number of
小題9:
A.toB.fromC.inD.off
小題10:
A.At that timeB.from now onC.since thenD.since now
小題11:
A.produceB.a(chǎn)re producedC.makeD.a(chǎn)re made
小題12:
A.becauuse of B.becauseC.a(chǎn)sD.for
小題13:
A.interestingB.importantC.famousD.expensive
小題14:
A.had developedB.have developedC.developedD.a(chǎn)re developing
小題15:
A.tooB.a(chǎn)s wellC.eitherD.a(chǎn)lso

查看答案和解析>>

科目:初中英語 來源:不詳 題型:閱讀理解

BEIJING--Lights went out for an hour at some famous landmarks and homes all over the world on March 28 for Earth Hour 2010. It is a global event created by the WWF(World Wildlife Fund) to make people pay more attention to climate change.
From the Sydney Opera House and Harbor Bridge to the Eiffel Tower in Pari sand London’s Houses of Parliament, lights went out to encourage people to cut energy use.
Organizers said the action showed that a great number of people wanted the government to take measures to fight global warming by the end of 2010. "We have been dreaming of a new climate deal for a long time," said Kim Carstensen, head of a global climate organization. "Now we’re no longer alone with the dream. We’re sharing it with all these people turning off their lights," he said.
Australia first held Earth Hour in 2007 and it went global in 2008, attracting 50 million people. WWF is hoping one billion people from 1,000 cities in nearly 90 countries will take part in the event.
Oriental Pearl Tower in Shanghai, the Bird’s Nest in Beijing and many other famous buildings in China also joined in this event.
小題1:The event "Earth Hour" was created to make people pay more attention to __
A. Sydney Opera House    B. climate change           C. March 28
小題2:According to the passage people who took part in the event__ on March 28.
A. turned off the lights for one hour     B. turned down the lights for 2 hours
C. turned on the lights for 3 hours
小題3:         created Earth Hour event first in     
A. America, 2008          B. Canada, 2010            C. Australia, 2007
小題4:__ famous landmarks are mentioned in the passage.
A. Four                    B. Five                     C. Six
小題5:The Earth Hour event was created by __
A. Global Climate Organization    B. World Wildlife Fund    C. Kim Cartensen

查看答案和解析>>

科目:初中英語 來源:不詳 題型:完形填空

These days,cars are designed using computers.Let’s look at how a new car is created.
First,several   16  talk about the new car and any good ideas that they have.Then they sit down at their computers and   17  many sketches.The best two or three drawings are chosen and then more detailed drawings of   18  are developed on the computer.You can change the size,shape or color of any part on the computer to see   19  the car would look and then you can choose the best design.
Both the inside and the outside of the car have to be designed.Part of the inside of the car is    20 so that the designers can sit in it.They can feel if there is enough  21 inside and if they can reach  22 .Then some cars are built-there are more than 15,000 parts of a car to 23 
When everything is known to be   24  ,the cars are made in the factory.Again,computers are used to make sure that all the parts are   25  as they are needed.The factory
usually stays open all through the night so that the car production never stops.
小題1:
A.driversB.designersC.workersD.salesmen
小題2:
A.drawB.orderC.typeD.enjoy
小題3:
A.bicyclesB.trainsC.carsD.buses
小題4:
A.howB.ifC.whatD.that
小題5:
A.coveredB.paintedC.lockedD.built
小題6:
A.metalB.glassC.leatherD.room
小題7:
A.nothingB.somebodyC.everythingD.nobody
小題8:
A.chooseB.testC.showD.repair
小題9:
A.safeB.easyC.cheapD.fast
小題10:
A.rareB.electronicC.comfortableD.ready

查看答案和解析>>

科目:初中英語 來源:不詳 題型:閱讀理解

Paris is the capital of France. Its subway is also very special. You can enjoy its culture when you are in this city. First you can see many people reading books in the subway. Whenever they are in the subway or at the station, there is always a book in the hand.
The subway station in Paris is not big, but each of them has its special facts. Some stations look like ships. Some stations have clothes, caps and shoes. And every station has a big advertisement picture. But many of them are for selling clothes and cosmetics(化妝品).
You can meet some beggars(乞丐) in the subway. But the beggars in the Paris subway are also very special. They often play the violin or guitar in the train. They don’t feel shy at all. Instead they think it is natural. After playing, they will go around the train and ask you to give them some money.
If you want to learn more about Paris, go to the subway and enjoy its culture by yourself.
小題1: What do many people usually do when they are in the subway?
?
A.Listen to music.?B.Beg some money.
?
C.Sell clothes and cosmetics. ?D.Read books.
小題2: How do the beggars get money from people in the subway?
?
A.They often play the violin or guitar in the train.
?
B.They usually brush shoes for the passengers.
?
C.They often steal money from the shops.
?
D.They usually help the passengers carry suitcases.
小題3: What’s the main idea of this passage?
?
A.Reading in the Paris subway.
?
B.The subway is a window of the Paris culture.
?
C.The beggars in the Paris subway usually have some skills.
?
D.Each of the subway station in Paris has its special facts.

查看答案和解析>>

同步練習(xí)冊(cè)答案