當(dāng)前位置：外研版（2019）選擇性必修第一冊(cè)《Unit 4 Meeting the muse》2021年同步練習(xí)卷（Starting out Understanding ideas）> 試題詳情

Scientists studied works of art made at various times in history and found most of the people shown in these works of art are right-handed.So scientists guessed that right-handedness has always been common in humans through history.Because no one has ever come across records of any large groups of left-handed nations or people，scientists also guessed that right-handedness is a natural characteristic（特征）of humans.Today，only about 10 to 15 percent of the world's population is left-handed.
   Scientists now know that a person's two hands each have every special job.For most people，the left hand is used to find things，hold things，or support things.The right hand is used to handle or work with things.This division of work seems to be related to how the two sides of the brain work.The right side of the brain，which controls the left hand，is strong in skills related to making a person's hands and eyes work together.The left side of the brain，which controls the right hand，is the center for thinking and solving problems.Studies have found that left-handedness is twice as common among artists as among people in other jobs.
   What makes a person become right-handed rather than left-handed？So far，no one really knows for sure.Scientists have found that almost 40 percent of the people who suffer major brain damage when they are born become left-handed.However，not everyone who suffers brain damage becomes left-handed，so scientists guess that there must be another reason.One simple idea suggests that people normally get right-handedness 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 chance and the person's surroundings.
   Even though right-handedness is more common，the left-handed are no longer looked down on，nor are they considered abnormal（反常的）.Left-handed children used to be punished until they began using their right hands like other children，but today either case is perfectly acceptable.

（1）Which fact supports the idea that right-handedness is a natural characteristic？
D
D

A．Scientists found the right-handed gene.
B．Right-handed people are cleverer.
C．Most famous people were right-handed.
D．No large left-handed groups of people exist in the world.
（2）The second paragraph describes
C
C
.
A．the two hands separately
B．problems that left-handed people have
C．the connection of the brain to the hands
D．how a person becomes left-handed
（3）People sometimes become left-handed because
C
C
.
A．it is accepted
B．the left hand is more artistic
C．their brain is damaged
D．right-handed children are punished
（4）Suppose the world's population is 6.5 billion，how many left-handed people are there？
B
B

A．About 2 billion.
B．About 1 billion.
C．About 500 million.
D．About 100 million.

【考點(diǎn)】社會(huì)；說(shuō)明文．

【答案】D；C；C；B

【解答】

【點(diǎn)評(píng)】

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發(fā)布：2024/4/20 14:35:0組卷：6引用：1難度：0.6

相似題

1．Imagine the situation.You are driving along a desert or on a mountain.You have no idea where you are.You passed the last house two hours ago.Then your car breaks down.It is night and it is cold.You have no mobile phone.What do you do？Well，next time take a GPS with you.This invention may be able to help you.It is a device which uses satellites to find the user's position.A GPS cannot start your car，but at least you will know where you are.
   GPS，which means Global Positioning System，is a small radio receiver.It looks like a mobile phone.You can hold it in your hand，or put it in your pocket.It is sometimes put into a watch or a telephone.We also find GPS devices in cars，planes，or boats.Some of these devices have electronic maps，so you know where you are.For example，in a city they can tell you the name of the street.
   There are three parts to the Global Positioning System.The first part is the receiver.You can hold it in your hand，or have it fixed into your car，plane，etc.The second part is a group of satellites orbiting the Earth.The receiver contacts at least four of the satellites and calculates its position.The third part of the system is a network of ground stations.They are all over the world.They control the satellites and make sure they are working well.
   The GPS is becoming cheaper and more and more accurate.There are also new uses for the GPS.Perhaps they will become like watches.Everyone will have one and you will never be lost again.

（1）According to the passage，with the help of GPS，people

.
A．can't be lost in a new city
B．can't find their way in different countries
C．can learn about the culture of an unknown place
D．can spend the least time getting to another place
（2）We can learn from the passage that

.
A．there are three parts to the GPS
B．a(chǎn) GPS can't be put into a watch
C．a(chǎn) GPS can help you start your car
D．the GPS is becoming more and more expensive
（3）The underlined word "They" in Paragraph 3 means "

".
A．receivers
B．GPS devices
C．satellites
D．ground stations
（4）The passage is mainly about

.
A．the history of the GPS
B．the introduction of the GPS
C．the shape of the GPS
D．the three parts of the GPS
發(fā)布：2024/11/10 15:0:1組卷：45引用：2難度：0.5
解析
2．Beijing- The public has responded with vigorous support for an NPC deputy's proposal to extend the Spring Festival holiday from three days to 10.
   More than 78 percent of about 27，600 respondents to a poll on voted in favor of the idea of Li Jing，who is also the mayor of Meishan city in South-west China's Sichuan province.Li said the lunar new year festival holiday was too short for family reunions，especially for the nation's 220 million migrant workers.
   With hundreds of millions of people on the move during such a short time span，the holiday puts great stress on the public transport system and suppresses tourism，she added.She suggested the holiday be extended and cover the three adjacent（毗連的）weekends，which means the public could take a total of 16 days off and floating population could spend the Lantern Festival，which falls on the 15th day of the lunar new year，with their families.
   People would then have sufficient time to fully enjoy the traditional holiday with their families，Li said during an interview with People's Daily Online on Friday.
   Most online voters agreed that extending the holiday will ease the burden on public transport and strengthen family ties. "The Spring Festival is an occasion for family reunions and should be longer than the National Day holiday，" one responder said in an online post. "Every year，I wish I could spend more time at home for the Spring Festival，but I always have to go back to work.I hope the NPC will approve this proposal. "
   Another online comment read： "Extending the Spring Festival holiday could prevent the annual transportation crush，which has in recent years resembled an exodus（出走）of fleeing refugees（難民）".
   Most of the about 13 percent who opposed the idea cited difficulties readjusting to work after the break.Some pointed out that office moral （士氣）was generally low during the first week after the holiday. "After the six-day holiday，many people come back to work feeling absent-minded， " one respondent said.Some who opposed the extension suggested adding the Lantern Festival as an official holiday.
   Another 10 percent said lawmakers should carefully study the impacts before they make any decisions on holidays.

（1）Which of the following is NOT the reason why Li Jing suggested extending the Spring Festival holiday？

A．The floating population could spend the Lantern Festival.
B．People could spend more money and this could promote consumption.
C．The lunar new year festival holiday was too short for family reunions.
D．The holiday puts great stress on the public transport system and suppresses tourism.
（2）What was Li Jing's plan for the lunar new year festival holiday？

A．It could cover the two adjacent weekends.
B．The holiday would be from the first day of the lunar year.
C．She added the Lantern Festival as an independent official holiday.
D．The public could take a total of 16 days off including the Lantern Festival.
（3）The underlined word "crush" in the sixth paragraph probably means "

".
A．uncomfortable pressure caused by a great crowd of people
B．a(chǎn) drink made by pressing fruit and used as juice
C．a(chǎn) traffic accident resulting from traveling too fast
D．people's eagerness to go home to meet their families
（4）Why were some netizens against extending the holiday？

A．It was a waste of time.
B．People would not earn much money.
C．It would have a bad effect on China's economy.
D．People wouldn't be in a good working stage after so long a holiday.
發(fā)布：2024/11/10 4:0:2組卷：5引用：2難度：0.5
解析
3．Surfing the Internet for fun will make you a better employee，according to an Australian study.
   The University of Melbourne study shows that people who use the Internet for their own reasons at work are about 9 percent more productive than those who do not.Study author Brent Coker said， "Surfing the Internet at times helps increase an employee's attention."
   "People need to relax for a bit to get back their attention，" Coker said on the university's website. "Having a short break，such as a quick surfing of the Internet，helps the mind to rest itself，leading to a higher total Internet attention for a day's work，and as a result，increases productivity（生產(chǎn)效率），" he said.
   According to the study of 300 workers，70 percent of people who use the Internet at work surf the Internet for their own reasons during office hours.Among the most popular surfing activities are searching for information about products，reading online news，playing online games and watching videos. "Firms spend a lot of money on software to block their employees from watching video，using social networking sites or shopping online，" said Coker. "That's not always a good idea."
   However，Coker said the study looked at people who surfed the Internet in moderation（適度），or were on the Internet for less than 20 percent of their total time in the office. "Those who spend too much time surfing the Internet will have a lower productivity than those without，" he said.

（1）What does the University of Melbourne study mainly show？

A．People who surf the Internet are good employees.
B．Not everyone surfs the Internet for fun during office hours.
C．Surfing the Internet for fun during office hours increases productivity.
D．The Internet is becoming more and more important in people's life.
（2）According to Paragraph 3，Brent Coker would most probably agree that

.
A．the longer a person's mind rests ，the better attention he will have
B．surfing the Internet is the best way to increase productivity
C．workers should have a long break during office hours
D．Workers should let their minds rest now and then
（3）Which of the following is NOT mentioned in the passage as one of the most popular surfing activities？

A．Watching videos.
B．Reading online news.
C．Reading online novels.
D．Playing online games.
（4）What can we infer form the last paragraph？

A．Spending too much time surfing the Internet reduces productivity.
B．Those who never surf the Internet have the lowest productivity.
C．Most people don't surf the Internet in moderation during office hours.
D．People should spend as little time as possible surfing the Internet.
發(fā)布：2024/11/8 15:0:1組卷：9引用：1難度：0.6
解析

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