欧美日韩黄网欧美日韩日B片|二区无码视频网站|欧美AAAA小视频|久久99爱视频播放|日本久久成人免费视频|性交黄色毛片特黄色性交毛片|91久久伊人日韩插穴|国产三级A片电影网站|亚州无码成人激情视频|国产又黄又粗又猛又爽的

More parents are looking to cellphones to help keep their children safe.  But mom and dad should be careful: Kids who talk on a cellphone may be more likely to step into traffic. Children should learn to end phone conversations before they prepare to step into traffic.
While research shows that older kids and more experienced users also don’t navigate(穿行于) streets as well while on a cellphone, younger children tends to find the small tools more distracting(令人分心的).
“Kids of this age are just learning to cross the street on their own, ”says David-Schwebel, a co-author of the study. “They’re beginners. ”
Kids don’t need to be stopped from chatting on the phone when outside,
however. Instead, parents simply should instruct them to finish their conversations before crossing the street.        
“I don’t think this means parents should take phones away from their kids, ”says Schwebel. “I encourage families to get cellphones for their children.  They’re more helpful than harmful,  if they’re used in a safe way. ”
Other distractions, such as conversations with friends, listening to music,  and text messaging, may also cause problems for children in this age group.  The researchers expect to study the effect of those types of distractions in the future.
Experts in child safety approved the cellphone study. “If you’re talking on a cellphone,  you’re not paying much attention to the environment around you, ” says Susan Baker, a professor.
Brooke Carlson, a 44-year-old mom, has noticed how riveted her 9-year-old son is when he’s talking on the cellphone. Although she’d never thought of the dangers of crossing traffic while on the phone, Carlson says, “Now that I know about it, it makes total sense. ”She plans to have a chat with her child about cellphones and street safety.
For younger kids, parents might consider purchasing a phone with a plan that only allows the child to call up his or her parents. That way the cellphone can be used for emergencies, but not for chatting with friends for hours.
小題1:In Schwebel’s opinion, _____ .
A．kids are still too young to walk on the street alone
B．kids don’t know how to use cellphones appropriately
C．kids have little experience in crossing the street alone
D．kids are not experienced cellphone users
小題2: Which of the following is Schwebel in favor of?
A．Children shouldn’t be allowed to have a cellphone.
B．Children should be forbidden to chat on the phone when outside.
C．Cellphones do more harm to children than other distractions.
D．Parents should teach kids about cellphones and street safety.
小題3: The underlined word “riveted” may mean“_____”.
A．confusedB．a(chǎn)bsorbed
C．dangerousD．excited
小題4: According to the passage, what does Mrs Carlson know?
A．There are dangers of crossing streets while on the phone.
B．Her 9-year-old son is not interested in talking on the phone.
C．Cellphones are more helpful than harmful to children.
D．Kids don’t pay attention to the environment when talking on the phone.
小題5: The purpose of writing this passage is to _____.
A．a(chǎn)dvise parents not to buy cellphones for children
B．introduce a phone that only allows kids to call up parents
C．expect kids not to talk on cellphones while on the street
D．expect people to use cellphones less in daily life
小題1:C小題1:D小題1:B小題1:A小題1:C
略
練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解

A new study has found that it may be possible to train people to be more intelligent, increasing the brainpower they had at birth．
Until now，it has been widely assumed that the kind of mental ability that allows us to solve new problems without having any relevant previous experience—what psychologists call fluid intelligence—is innate and cannot be taught（though people can raise their grades on tests of it by practicing）．
But in the new study，researchers describe a method for improving this skill，along with experiments to prove it works．
The key, researchers found, was carefully structured training in working memory—the kind that allows memorization of a telephone number just long enough to dial it．This type of memory is closely related to fluid intelligence，so the researchers reasoned that improving it might lead to improvements in fluid intelligence．
First they measured fluid intelligence of volunteers using standard tests．Then they trained each in a complicated memory task—the child’s card game，in which they had to recall a card they saw and heard．During the course, they needed to ignore irrelevant items, monitor ongoing performance，manage two tasks at the same time and connect related items to one another in space and time．
The four groups experienced a half-hour of training daily for 8, 12, 17 and 19 days, respectively．To make sure they were not just improving their test-taking skills，the researchers compared them with control groups that took the tests without the training．
The results, published Monday in The Proceedings of the National Academy of Sciences，were striking．Improvement in the trained groups was a lot greater．Moreover，the longer they trained, the higher their scores were．All performers，from the weakest to the strongest，showed significant improvement．
“Our results show you can increase your intelligence with proper training．” said Dr Jaeggi, a co-author of the paper．“No one knows how long the gains will last after training stops,” he added, “and the experiment’s design did not allow the researchers to determine whether more training would continue to produce further gains．”
小題1:.The researchers thought the key to improving the intelligence was ______________．
A．memorizing telephone numbersB．improving working memory
C．training in concentrationD．recalling a card
小題2:.The following aspects of the training help increase intelligence EXCEPT___________．
A．ignoring irrelevant itemsB．monitoring ongoing performance
C．managing two tasks at the same timeD．using previous experience
小題3:.When the experiment was conducted, the researchers______________．
A．trained the four groups for the same period of time
B．only made comparisons between the four groups
C．compared the four groups with control groups
D．trained the four groups together
小題4:.By writing the article，the writer intends to ______________．
A．inform the readers of a new study
B．call on people to be trained to increase intelligence
C．prove one’s born brainpower can be improved
D．tell people the improved intelligence will last forever

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解

There is no doubt that much of the profit of a business—sometimes the whole of its success—depends upon the use of the odds and ends．The odds and ends are various small things，which are left over when the main things are produced．But they possess a real value of their own．
If a business，big or small，looked down upon these odds and ends，it would mean a big difference in the amount of the benefit of the business．Take a meat factory for instance， there are countless odds and ends—bones and hair，which can be made into glue and rope to increase its profit greatly．
Then，if we are college students，what about our odds and ends—the odd moments？ Take time for example．Every one of us has the exact same amount of it．Everyone’s success or failure depends on the use of their time．But everyone uses the time more or less in the same way．However，why many great men in science or art have made huge successes for themselves in the world？Because they have made best use of their odd moments．Take Thomas A．Edison， he never allowed his odd moments to slip by．He thought，planned，and tried his inventions．He always worked twenty hours out of each twenty-four．His inventions made him famous all over the world，and provided valuable wealth for the human beings．
So, remember this axiom：very busy people always find time for everything．However，people with great spare time find time for nothing．Is it very strange？Not at all！The question is how to gather up fragments of time and make full use of them．As many big businesses have found，that the real profit is in using the odds and ends．We also must do in this way to make best use of our odd moments and manage to be successful in something that we do．
小題1: What are odds and ends？
A．They are nothing useful．
B．They are various small，but valuable things．
C．They are the main things that factories produce．
D．They are odd moments students deny to gather up．
小題2: Why should the odds and ends be made full use of ？Because  ____   ．
A．lots of factors in success or in failure depend on the best use of odds and ends
B．they control to possess a value of their own
C．they are various small things people don’t want
D．they are useless things left over when the main things are produced
小題3:What does the word “Axiom” in the fourth paragraph mean?
A．clear and evident without proof
B．statement accepted as true without proof of argument
C．statement that can be argued
D．regulation accepted in scientific usage
小題4: “Fragments of time” equals  “____   ”in the above passage．
A．the odds and endsB．immense leisure
C．the main thingsD．the odd moments

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解

Researchers who study relationships have discovered that a big difference between those who make new friends easily, and those who don’t, is that socially successful people tend to make eye contact with their conversation partners much more frequently than those who are less successful socially. In fact, you may be able to become much more socially successful by making this one simple change to your behavior.
Most Americans prefer to have a lot of eye contact when they are talking with someone. When a person doesn’t make eye contact with them, they tend to think that the person is hiding something or the person doesn’t believe in himself/herself.
When you are having a conversation and you want to leave a friendly impression, be sure to keep looking at that person frequently while you are talking. If it really bothers you to look directly into another person’s eyes, you can gaze generally at, not above, the eyebrow area or the bridge of the nose; this is close enough to the eye region that you will appear to be looking at the person’s eyes. But neither the hair or the shoulders have the same effect. Don’t stare at other people too intensely, otherwise, you will look aggressive(攻擊性).
Keep the majority of your focus on the other person. If you glance around the room too much, or look too frequently at other people, your conversation partner may guess that you are looking around for someone else you would rather talk with.
You can lighten your nervousness by smiling more often, nodding, and by gazing at the entire face as well as the eyes. In addition, you can frequently look away for very short periods.
When people get the sense that you are really paying attention to them, they will be much more likely to want to have conversations with you!
小題1:Which of the following is NOT the impression left by those who don’t make eye contact during the talk?
A．They are not telling the truth.B．They are bored with the partner.
C．They are lacking in confidenceD．They are angry and ready to attack.
小題2: Besides the eyes of the partner, during the talk, you can look at his/her ___________.
A．hairB．shouldersC．the bridge of the noseD．a(chǎn)rea above the eyebrows
小題3: From the passage, we can learn that ____________________.
A．looking away during conversation should always be avoided.
B．looking at a person frequently can give him/her a good impression.
C．many Americans feel like being stared at for a long time.
D．a(chǎn)ll successful people are good at making eye contact.
小題4:What would be the best title for the passage?
A．How to make yourself socially successful
B．How to use eye contact to make a good impression
C．How to make friends with the people around you
D．How to leave a good impression during a talk

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解

Scientists have learned a lot about the kinds of food people need. They say that there are several kinds of food that people should eat every day. They are: (1) green and yellow vegetables of all kinds;  (2)citrus （柑橘）fruits and tomatoes; (3) potatoes and other fruits and vegetables ; (4) meat of all kinds, fish and eggs; (5) milk and foods made from milk; (6) bread or cereal (谷物), rice is also in this kind of foods; (7) Butter or something like butter. 
People in different countries and different places of the world eat different kinds of things. Foods are cooked and eaten in many different kinds of ways.  People in different countries eat at different times of the day. In some places people eat once or twice a day; in other countries people eat three or four times a day. Scientists say that none of the differences is really important. It doesn’t matter whether foods are eaten raw or cooked, canned or frozen. It doesn’t matter if a person eats dinner at 4 o’clock in the afternoon or at eleven o’clock at night. The important thing is what you eat every day.
There are two problems, then, in feeding the large number of people on earth. The first thin g is to find some ways to feed the world’s population so that no one is hungry. The second is to make sure that people everywhere have the right kind of food to make them grow to be strong and healthy.
小題1: According to the scientists, which of the following groups of food is the healthiest for your lunch?
A．chicken, apples, cereal, cabbages. B．potatoes, carrots, rice, bread.
C．oranges, bananas, fish, tomatoes.D．beef, pork, fish, milk
小題2: It is important for people to eat __________.
A．three times a dayB．dinner at twelve o’clock
C．cooked food all the day
D．something from each of the seven kinds of food every day.
小題3:People in different countries and different places of the world________________.
A．have the right kinds of food to eatB．cook their food in the same way
C．have their meals at the same timeD．eat food in different ways.
小題4: Which of the following is NOT true?
A．People in some places don’t have enough to eat.
B．There are too many people in the world.
C．One of the problems is that no one is hungry.
D．The scientists are trying to make people e grow to be strong and healthy.
小題5:If there is paragraph 4, what do you think is going to be talked about?
A．When people eat their lunch. B．What to do with the two problems.
C．How to cook food in different ways. D．Why people eat different kinds of food.

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解

WHAT happens to a teenage kid when the world he thought he knew suddenly changes? Find out in Little Brother by American author Cory Doctorow． It is a fascinating book for a new generation of sci-fi readers．
Marcus Yallow, 17, from San Francisco is much more comfortable in front of a computer than obeying the rules of society． Smart, fast and wise to the ways of the networked world, he has no trouble outwitting （騙過(guò)） his high school's monitoring system． This way he and his friends get to head off to play a popular online game in real life．
While they are playing, a bomb explodes on the Bay Bridge． Marcus stops a military vehicle to get help for his injured friend, but this simple act throws him into a Department of Homeland Security （DHS） secret prison． There he is treated as a possible terrorist． He is eventually let go after four days, but his injured friend disappears．
When he returns, Marcus discovers that there are many "security measures" in place and that now all citizens are treated like potential terrorists． While some consider this government action necessary for public safety, Marcus sees this as a complete destruction of the rights he is supposed to have as a citizen．
He knows that no one will believe his story, which leaves him with only one thing to do: to take down the DHS himself． He helps organize a large network called Xnet to spread the truth, anonymously （匿名地）．
The book presents a young man who is irresponsible, but learns about himself, and grows, in the course of the story． As part of this learning and growing he becomes aware of very serious issues about his society．
小題1: What kind of article does this passage belong to?     
A．A fascinating story．B．A book review．
C．News reportD．A TV programme
小題2: The underlined word destruction in the passage means         ．     
A．damageB．rewardC．ruinD．protection
小題3: Marcus Yallow was sent to prison because         ．        
A．he killed his friend
B．he bombed a military vehicle
C．he did something that a possible terrorist could do
D．his injured friend disappeared
小題4: From the second paragraph we can infer that         ．     
A．Marcus Yallow is much more comfortable obeying the rules of society
B．Marcus Yallow is smart, fast and wise in real life
C．Marcus Yallow always plays online games in real life
D．Marcus Yallow is expert at the network world
小題5: In the end of the book, Marcus Yallow         ．      
A．is supposed to be more irresponsible
B．becomes aware of very serious issues about his society
C．presents a young man who is irresponsible
D．plays a popular online game in real life

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解

The hole in the Earth’s ozone layer(臭氧層) has until now protected Antarctic from the worst effects of global warming, but scientists have warned that as the hole closes up in the next few decades, temperatures on the continent could rise by around 3℃ on average, with melting ice contributing to a global sea level increase of up to 1.4 meters.
In the past decades the western Antarctic has seen rapid ice loss as the world has warmed, but the other parts of the continent have, paradoxically, been cooling, resulting in a 10% increase in ice in the seas around the region. This is because the hole in the ozone layer has increased cold winds in Antarctic, making much of the continent surface colder than usual.
But now that the gases that cause the ozone hole have been banned, scientists expect the hole to repair itself within the next 50 to 60 years. By then the cooling effect will have faded out and the Antarctic will face the full impact of global warming. This means an increase in average air temperatures of around 3℃ and a reduction in sea ice by around a third.
The biggest threat to the continent comes from warming seas. Robert Johnson, a scientist who monitors Antarctic ice sheets, said, “The ice sheets in Antarctic are hundreds of meters thick. But once warm ocean waters start flowing underneath, the ice will begin thinning and could break up very quickly.” Thinning ice sheets cause ice to break away from the continent and to melt even faster. Escaping ice from western Antarctic has already resulted in a 10% rise in global sea level in recent decades.
Johnson believes that international action to reduce global warming is required immediately or it may be too late. “Everything is connected——Antarctic may be a long way away but it is an important part of the Earth’s system,” said Johnson. “It contains 90% of the world’s ice, 70% of the world’s fresh water and that is enough, if it melts completely, to raise sea levels by 63 meters.”
Even in a worse-case situation scientists don’t expect the ice to entirely disappear, but predict that, because of the melting ice sheets, average sea level rise will be around 1.4 meters higher by the end of the century.
小題1:
The underlined word “paradoxically” (in paragraph 2) most probably means “     ”.
A．rapidlyB．generallyC．contradictorilyD．a(chǎn)pparently
小題2:
What is the effect of the hole in the ozone layer on Antarctic?
A．It is causing the ice to melt faster.
B．It is making much of the continent colder.
C．It is making the effects of global warming in the region worse.
D．It is reducing the amount of water in Antarctic.
小題3:
What do scientists think is the biggest danger facing Antarctic?
A．Rising sea levels.B．Warming sea water temperature.
C．Water pollution.D．Growing ice sheets.
小題4:
Which of the following is true according to the passage?
A．Antarctic is currently experiencing the full effects of global warming.
B．The average temperature has increased by 3℃ in recent decades.
C．Antarctic contains most of the world’s fresh water.
D．Ten percent of Antarctic’s ice has already been lost.

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解

US bees operation keeping groups have been attacked seriously by so called Colony Collapse Disorder (蜂群衰竭失調(diào))．Almost 1/2 of their worker bees have vanished during the past season．This disorder has also been reported in Israel, Europe and South America．Bees fly away from the hive and never return．Sometimes they are found dead; other times they are never found．Many crops and trees depend on pollination--- by bees to help them grow． 
A new report says a virus may be at least partly responsible for the disorder in honey bee colonies in the United States．This virus is called Israeli acute paralysis virus．It was first found in Israel in 2004．Lan Lipkin at Columbia University in New York and a team reported the new findings in Science Magazine．Doctor Lipkin says the virus may not be the only cause．He says it may work with other causes to produce the collapse disorder．
The team found the virus in colonies with the help of a map of honey bee genes that was published last year．They examined thirty colonies affected by the disorder．They found evidence of the virus in twenty-five of them, and in one healthy colony．The next step is further testing of healthy hives．
The researchers suggested that the United States may have imported the disorder in bees from Australia．They say the bees may carry the virus but not be affected．
The idea is that unlike many American bees, the ability of Australian bees to fight disease has not been hurt by the varroasis mite．This insect attacks honey bees, which could make the disorder more likely to affect a hive．Australian bee producers object to these suspicions．
And some researchers suspect that bee production in the United States is down mainly because of the weather．Honey bees gather nectar from flowers and trees．The sweet liquid gives them food and material to make honey．But cold weather this spring in the Midwest reduced the flow of nectar in many flowers．Many bees may have starved．Dry weather in areas of the country could also be playing apart．
Wayne Esaias is a NASA space agency scientist who keeps bees in his free time．He lives in central Maryland, where he has found that flowers are blooming a month earlier than they did in 1970, which may be partly responsible for the disorder. Wayne Esaias is organizing a group of beekeepers to document nectar flow around the country.
小題1:What is the author’s attitude toward the cause of this disorder?
A．DoubtfulB．NeutralC．SupportiveD．Negative
小題2:The passage is mainly developed by            .
A．presenting the effect and analyzing its causes
B．making comparisons between two countries
C．providing data and examples
D．following the time order
小題3:How many possibilities may be involved in the bee disorder according to the passage?
A．ThreeB．FourC．FiveD．Six
小題4:From the passage we can infer that           .
A．American bees are more likely to defend themselves against hurt from other insects than Australian ones
B．A collection of plants production in the U.S may be influenced by the bee disorder
C．Israeli acute paralysis virus should be responsible for the disorder
D．The solution to the disorder will be found eventually

查看答案和解析>>

科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解

     Tired of Working in Your Country?
With over 500 teachers and 20 years of experience, we are the leader in the field of teaching foreign languages. We now have positions open in Osaka starting September/October 2004 for teachers of English, German, Spanish and French.
? Teach many different kinds of classes using the latest technology in small classes of up to 3 students.
?Accommodation (住宿), and other necessary documents will be ready before you leave.
? Applicants will teach their first language only.
? Excellent teacher training programs.
If you are young with a university degree and are willing to experience different cultures, apply (申請(qǐng)) now. Experience in teaching is an advantage but not specially required. Knowledge of the Japanese language is not necessary but good English skills and practical computer knowledge are basic requirements.
Apply with C. V. and send letters to:
NOVA France, Mr. Sampy (IHT3/2)
34, Bd. Haussmann, 75009 Paris, France
Fax: 33148014804
Or visit our website: www. teadyp. com
The manager expects to meet and talk with successful applicants in Paris in June and July.
小題1:What is the purpose of the text?
A．To introduce a language school in Japan.B．To hire language teachers to work in Japan.
C．To describe working conditions in Japan.D．To make clear the requirements for Japanese teachers.
小題2:We know from the text that those who are going to Japan will _______.
A．teach English only in OsakaB．receive a degree from a university
C．have free accommodationD．get trained for the job
小題3:Before going to Japan, you need _______.
A．to see the manager of NOVA FranceB．to take some computer courses
C．to write a letter to JapanD．to find a place to live
小題4:If you want to work in Japan you should _______.
A．have some working experienceB．know how to use computers
C．present good teaching plansD．speak several languages

查看答案和解析>>

同步練習(xí)冊(cè)答案