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Six-month-old babies are strictly limited in what they can remember about the objects they see in the world．If you hide several objects from babies，they will only remember one of those objects．But a new study，which was published in an issue of Psychological Science，a journal of the Association for Psychological Science，finds that when babies"forget"about an object，not all is lost．Researchers used to think that babies less than two years old did not understand that an object continues to exist when it is not in the baby's view．But in mid-1980s，new ways of doing experiments with babies found that they do，in fact，know that objects don't disappear when they do not look at them--a concept known as object permanence．But it was still unknown what babies needed to remember about objects in order to remember their existence．
Now Melissa Kibbe，of John Hopkins University，and Alan Leslie，of Rutgers University，are working to figure out exactly what it is that babies remember about objects．For the new study，they showed six-month-old babies two objects，a disk and a triangle．Then they hid the objects behind small screens，first one shape，then the other．Earlier research has shown that young babies can remember what was hidden most recently，but have more trouble remembering the first object that was hidden．Once the shapes were hidden，they lifted the screen in front of the first object．Sometimes they showed babies the shape that was hidden there originally，but sometimes it was the other shape，and sometimes the object had vanished completely．
Psychologists （心理學(xué)家） measure how long babies look at something to see how surprised they are．In Kibbe and Leslie's study，babies weren't particularly surprised to see that screen had changed，for example，from a triangle to a disk．But if the object was gone altogether，the babies looked significantly longer，indicating surprise at an unexpected result："This shows that even though babies don't remember the shape of the object，they know that it should continue to exist，"Kibbe says．"They remember the object without remembering the features that identify（鑒別） that object．"
This helps explain how the young brain processes information about objects，Leslie say．He thinks the brain has a structure that acts like a kind of pointer，a mental finger that points at an object．

（1）Before the study，which of the following was unclear？
B
B

A．Whether babies know objects are gone．
B．What made babies remember objects' existence．
C．Whether babies can remember what was hidden first．
D．Why babies were interested in what was hidden．
（2）In the second paragraph，the underlined word"vanished"probably means"
B
B
"．
A．forgotten
B．disappeared
C．discovered
D．hidden
（3）The study helps us better understand
A
A
．
A．how the young brain deals with information about objects
B．whether babies can remember features of hidden objects
C．whether babies were surprised when they found the objects disappeared
D．why babies less than two years did not understand a hidden object still existed
（4）Which would be the best title for the passage？
B
B

A．A new concept-object permanence
B．All remembered isn't lost
C．What babies remember about objects
D．A new study on psychology．

【考點(diǎn)】說明文．

【答案】B；B；A；B

【解答】

【點(diǎn)評】

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發(fā)布：2024/6/11 8:0:9組卷：5引用：2難度：0.7

相似題

1．The coronavirus（冠狀病毒）outbreak has sparked panic buying of toilet paper and cleaning products in countries across the world，but one UK businessman is determined to spread some happiness among the anxiety and confusion．
   Rob Braddick，48，who owns Braddick's Holiday Park in Westward Ho，Devon，in the southwest of England，has filled the toy grabber machines in his amusement park with two of the country's most sought-after cleaning products．
   Customers could previously try their hand at grabbing "Frozen 2" or "Peter Rabbit" toys from the machines，but no more． "They got removed this morning，" Braddick said of the toys，replacing them with toilet roll and hand sanitizer （洗手液）．Visitors can now pay 50 p for three goes on the toilet roll grabber，or ￡1 a go for Carex，which Braddick described as the "Rolls- Royce of hand sanitizers．"
   Braddick said that his decision was born of a desire to make people feel less stressed in uncertain times． "It's a bit of light relief with everything that's going on，" he said． "Hopefully it will raise a smile，which I think everybody needs．"
   Around the world，travel plans have been severely affected，and tens of millions of people remain at home as part of global efforts to fight against coronavirus．Supermarkets have seen shortages of toilet paper and hand sanitizer as anxious consumers stockpile the products．
   Braddick said the family business，which has been running since 1932，has received more than a dozen calls from potential customers who say they don't want to travel abroad for their holidays and would rather stay in the UK．As for his own measures against coronavirus，Braddick said staff have been told to wash their hands every half hour，which is particularly important for those handling money．

（1）What does the underlined word "sought-after" in paragraph 2 probably mean？

A．Practical
B．Amusing
C．Popular
D．Confusing
（2）What is the third paragraph mainly about？

A．Price for a try．
B．Prizes of the game．
C．New practice of the game．
D．People's love for grabbing toys．
（3）What's the purpose of Braddick's new idea？

A．To make higher profits．
B．To ease people's anxiety．
C．To support his family business．
D．To attract more people to play the game．
（4）What can be inferred from the passage？

A．Tourism may fall into a decline．
B．Braddick's business is experiencing a hard time．
C．Cleaning products will be in shortage for a long time．
D．Everyone in the park is told to wash their hands every half hour．
發(fā)布：2024/11/17 4:30:2組卷：10引用：1難度：0.4
解析
2．Malaria，the world's most widespread parasitic （寄生蟲引起的） disease，kills as many as three million people every year，almost all of whom are under five，very poor，and African.In most years，more than five hundred million cases of illness result from the disease，although exact numbers are difficult to assess（評估） because many people don't （or can't） search for care.It is not unusual for a family earning less than two hundred dollars a year to spend a quarter of its income on malaria treatment，and what they often get no longer works.In countries like Tanzania，Mozambique，and the Gambia，no family，village，hospital，or workplace can remain unaffected for long.
Malaria starts suddenly，with violent chills，which are soon followed by an intense （強(qiáng)烈的）fever and，often，headaches.As the parasites multiply（增加），they take over the entire body.Malaria parasites live by eating the red blood cells they infect （感染）.They can also go into blood vessels in the brain.If it doesn't kill you，malaria can happen again and again for years.The disease passed on to humans by female mosquitoes（蚊子） infected with one of four species of parasite.Together，the mosquito and the parasite are the most dangerous couple in the history of the earth.Malaria has five thousand genes，and its ability to change rapidly to protect itself from attack and resist（抵抗） new drugs has made it nearly impossible to control.Studies show that mosquitoes are passing on the virus more frequently，and there are more outbreaks in cities with large populations.Some of the disease's spread is due to global warming.
For decades，the first-choice treatment for malaria parasites in Africa has been chloroquine，a chemical which is very cheap and easy to make.Unfortunately，in most parts of the world，malaria parasites have become resistant to it.Effective medicines that help prevent resistance are already available，but they have been in short supply and are very expensive.If these drugs should fail，nobody knows what would come next.

（1）According to paragraph 1，many people don't search for care because

.
A．they are too poor
B．it is unusual to seek care
C．they can remain unaffected for long
D．there are too many people suffering from the disease
（2）People suffering from malaria

.
A．have to kill female mosquitoes
B．have their red blood cells infected
C．have ability to defend parasites
D．have sudden fever，followed by chills
（3）Which of the following may be the reason for the wide spread of the disease？

A．Its resistance to global warming.
B．Its ability to pass on the virus frequently.
C．Its ability to protect itself from attack and resist new drugs.
D．Its outbreaks in cities with large populations.
（4）It can be inferred from the passage that

.
A．the effective drugs are not easily available to most people
B．no drugs have been found to treat the disease
C．malaria has developed its ability to resist parasites
D．nobody knows what will be the drug to treat the disease
發(fā)布：2024/11/17 10:0:3組卷：2引用：1難度：0.6
解析
3．For many kids，the Internet is at their fingertips．From computers to smartphones，a web of information is open to them．According to a new report，about three out of four kids aged 12 to 15 connect the Internet using a mobile device from time to time．Many younger kids are online too．
   Julian Zeitlinger，9，from New Jersey，uses his computer to watch videos and play games．To keep him safe online，his parents monitor his web use and discuss Internet safety with him． "I ask my parents whether something is nice or bad，" Julian says．
   Mobile devices offer more ways than ever to share personal information．The information can be dangerous in the wrong hands．A study found that 62% of children aged 8 to 17 have had an unpleasant online experience．
   Have you ever had to enter a parent's e-mail address when signing up for a website？That safety measure is there because of the Children's Online Privacy Protection Act （COPPA）．The law says sites for kids under 13 cannot collect personal information，such as a phone number or full name，without a parent's permission．
   This July，the Federal Trade Commission（FTC） will update COPPA for the first time since the law was created in 1998 when there were no smart phones．The nature of the way kids get online has changed，F(xiàn)TC lawyer Phyllis Marcus said．
   When the changes take effect，COPPA will apply to mobile devices and newer forms of advertising．It will expand what falls under "personal information" to include videos，photographs，and services that give users location．
   COPPA doesn't cover everything that can go wrong online．That is why kids and parents need to know what to look out for and to stop and think before sharing information online．
   "There is a misunderstanding that if a site is following COPPA，it is totally safe，" says privacy expert Shai Samet．He runs kidSAFE，which checks whether a site meets kidSAFE standards and is safe． "It's important that kids know how useful the Internet is but that it also can be dangerous if you are not careful．" he adds．

（1）Julian's parents check his web use to make sure

．
A．he doesn't watch too many videos
B．he doesn't play computer games
C．he controls his online time
D．he stays safe on the Internet
（2）What's one of the changes with COPPA？

A．It broadens the concept of personal information．
B．It prevents users from making their location public．
C．It covers everything that goes wrong online．
D．It says no to any kind of advertising．
（3）People often hold the wrong idea that

．
A．formal websites are always safe
B．the Internet is becoming safer and safer
C．COPPA can ensure their complete safety
D．daily checks prevent future online problems
（4）Why does the author write the passage？

A．To ask parents to look out for their kids．
B．To talk about online safety for children．
C．To introduce a new law．
D．To sell an online product．
發(fā)布：2024/11/17 6:0:1組卷：65引用：5難度：0.5
解析

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