How does Stephen Moyer feel about the first performance? A. Nervous but optimistic. B. Satisfied but cautious. C. Relaxed but doubtful. D. Puzzled but enthusiastic. G It’s illegal for the police to attach a GPS unit to your car without your permission, as the U.S. Supreme Court settled in 2012. But if the police are in hot pursuit of a bank robber or other escaping criminals that threaten public safety, a GPS tracker is acceptable. But exactly how can the police GPS track a car that is moving fast? The answer to that question comes from Star Chase, a new police technology being used by a small-but growing number of law enforcement agencies. It allows the police to fire 4.5-inch glue-covered GPS bullet-like projectiles from an air gun fixed in their police cars. If the GPS tracker makes contact with the escaping robber’s car, it’ll stick no matter how fast the vehicle is going. That way, the police will have a constant read on the car’s location and heading. Aside from simply apprehending criminals, it’s believed this new technology could help save lives. If the police successfully fire a GPS unit at a speeding criminal, they can pull back from a high-risk chase. Chases can be incredibly dangerous to all involved, including innocent bystanders and other drivers. Once the GPS bullet connects, there’s no need for the chase any longer. Now, predictably, a GPS-loaded gun isn’t cheap. Police departments need to pay about $5,000 per vehicle for the technology, and individual GPS bullets cost as much as $250 each. That may sound expensive, but remember: The alternative is often thousands of dollars in property damage, and great human cost in injury and lost life. According to Star Chase, their GPS bullet system has an apprehension rate of 80% without any report of injury or property damage. If you’d like to learn more about the Star Chase system, Popular Mechanics has just published a good article about it. There’s also plenty more information available at the company’s website. 查看更多

 

题目列表(包括答案和解析)

B

How does it happen that children learn their mother tongue SO well?When we compare them

With adults learning a foreign language,we often find this interesting fact.A little child without

knowledge or experience often succeeds in a complete mastery of the language.A grown—up person with fully developed mental powers,in most cases,may end up with a faulty and inexact corflllland.What accounts for tllis difference?

Despite other explanations。tlle real answer in my opinion hes partly in the child himself,partly in the  behaviour of the people around him.In the first place,the time of learning the mother tongue  in the most favorable of all,namely,the first years of hfe.A child hears it spoken from morning till night and,what is more important,always in its genuine form,with the right pronunciation,rightIntonation,right use of words and right structure.He drinksin all the words and expressions which come  to him in a hsh.ever—bubbhng spring.There is no resistance:there is perfect assimilation.

Then the child has,as it were,private lessons all the year round,while an adult language—

student has each week a limited number of hours which he generally shares with others.The child

has another advantage:he hears the language in all possible situations,always accompanied by the

right kind of gestures and facial expressions.Here there is nothing unnatural,such as is often found

In  language lessons in schools,when one talks about ice and snow in June or scorching heat in January  And what a child hears is generally what immediately interests him.Again and again,when his attempts at speech a聪successful,his desires are understood and fulfilled.

Finally,though a child’S“teachers”may not have been trained in language teaching,their re-

lations with him are always close and personal.ney take great pains to Inske their lessons easy.

60.’rhe main idea of the passage is——.

A.to tell why the native language is learnt SO well by children

B.to teach children to learn their lllothei"language we

C.to show that children’S teacher should take great p8ins to make their lessons easy

D.to do research into the difference between children and adults

61.What does the underlined phrase“dlq.nks in”in paragraph 2 mean?

A.drinks alcohol    B.has a drink of    C.takes in D.tastes

62.An adult has more difflculties in learning foreign languages well for the reason that_____.

A.children are more indiligent than adults

B.adults pay less attention to learning/anguages than children.

C.children have private lessons all the year around

D.an adult language—student has limited time to share with others

63.Ⅵmo ale the teachers teaching a child to learn his mother language?

A。His parents.    B.His teachers.    C.People around him.D.Himself.

 

查看答案和解析>>

 B

How does it happen that children learn their mother tongue SO well?When we compare them

With adults learning a foreign language,we often find this interesting fact.A little child without

knowledge or experience often succeeds in a complete mastery of the language.A grown—up person with fully developed mental powers,in most cases,may end up with a faulty and inexact corflllland.What accounts for tllis difference?

   Despite other explanations。tlle real answer in my opinion hes partly in the child himself,partly in the  behaviour of the people around him.In the first place,the time of learning the mother tongue  in the most favorable of all,namely,the first years of hfe.A child hears it spoken from morning till night and,what is more important,always in its genuine form,with the right pronunciation,rightIntonation,right use of words and right structure.He drinks in all the words and expressions which come  to him in a hsh.ever—bubbhng spring.There is no resistance:there is perfect assimilation.

  Then the child has,as it were,private lessons all the year round,while an adult language—

student has each week a limited number of hours which he generally shares with others.The child

has another advantage:he hears the language in all possible situations,always accompanied by the

right kind of gestures and facial expressions.Here there is nothing unnatural,such as is often found

In  language lessons in schools,when one talks about ice and snow in June or scorching heat in January  And what a child hears is generally what immediately interests him.Again and again,when his attempts at speech a聪successful,his desires are understood and fulfilled.

  Finally,though a child’S“teachers”may not have been trained in language teaching,their re-

lations with him are always close and personal.ney take great pains to Inske their lessons easy.

60.’rhe main idea of the passage is——.

  A.to tell why the native language is learnt SO well by children

  B.to teach children to learn their lllothei"language we

  C.to show that children’S teacher should take great p8ins to make their lessons easy

  D.to do research into the difference between children and adults

61.What does the underlined phrase“dlq.nks in”in paragraph 2 mean?

  A.drinks alcohol    B.has a drink of    C.takes in D.tastes

62.An adult has more difflculties in learning foreign languages well for the reason that_____.

  A.children are more indiligent than adults

  B.adults pay less attention to learning/anguages than children.

  C.children have private lessons all the year around

  D.an adult language—student has limited time to share with others

 63.Ⅵmo ale the teachers teaching a child to learn his mother language?

  A。His parents.    B.His teachers.    C.People around him.D.Himself.

查看答案和解析>>

 B

How does it happen that children learn their mother tongue SO well?When we compare them

With adults learning a foreign language,we often find this interesting fact.A little child without

knowledge or experience often succeeds in a complete mastery of the language.A grown—up person with fully developed mental powers,in most cases,may end up with a faulty and inexact corflllland.What accounts for tllis difference?

   Despite other explanations。tlle real answer in my opinion hes partly in the child himself,partly in the  behaviour of the people around him.In the first place,the time of learning the mother tongue  in the most favorable of all,namely,the first years of hfe.A child hears it spoken from morning till night and,what is more important,always in its genuine form,with the right pronunciation,rightIntonation,right use of words and right structure.He drinks in all the words and expressions which come  to him in a hsh.ever—bubbhng spring.There is no resistance:there is perfect assimilation.

  Then the child has,as it were,private lessons all the year round,while an adult language—

student has each week a limited number of hours which he generally shares with others.The child

has another advantage:he hears the language in all possible situations,always accompanied by the

right kind of gestures and facial expressions.Here there is nothing unnatural,such as is often found

In  language lessons in schools,when one talks about ice and snow in June or scorching heat in January  And what a child hears is generally what immediately interests him.Again and again,when his attempts at speech a聪successful,his desires are understood and fulfilled.

  Finally,though a child’S“teachers”may not have been trained in language teaching,their re-

lations with him are always close and personal.ney take great pains to Inske their lessons easy.

60.’rhe main idea of the passage is——.

  A.to tell why the native language is learnt SO well by children

  B.to teach children to learn their lllothei"language we

  C.to show that children’S teacher should take great p8ins to make their lessons easy

  D.to do research into the difference between children and adults

61.What does the underlined phrase“dlq.nks in”in paragraph 2 mean?

  A.drinks alcohol    B.has a drink of    C.takes in D.tastes

62.An adult has more difflculties in learning foreign languages well for the reason that_____.

  A.children are more indiligent than adults

  B.adults pay less attention to learning/anguages than children.

  C.children have private lessons all the year around

  D.an adult language—student has limited time to share with others

 63.Ⅵmo ale the teachers teaching a child to learn his mother language?

  A。His parents.    B.His teachers.    C.People around him.D.Himself.

查看答案和解析>>


They travel in groups, noses just inches away form GPS screen. Suddenly a boy shouts “I found it!”, grinning and walking away from the group.
The others focus on their screens. “Me. too!” shouts another a moment later, until all six kids are crowded around a tree, pulling out a plastic bottle painted to look like tree bark. It doesn’t seem like much from the outside, but everyone gathers around, eager to see what’s inside.
This is geocaching, a high-tech game played using coordinates (坐标) and global positioning systems to find hidden “treasures”.
It’s open to anyone—hiders or seekers—with a GPS and access to www.geocaching.com, where more than half a million users download and upload the coordinates of nearly 1 million hidden caches (储藏物) and write about their experiences in this worldwide hunt.
Although some adventures can take hours or even days, the contents inside the actual cache usually aren’t valuable—often just a book or a small trinket (小饰品).
But participants aren’t in it for the treasure. They say it’s a great way to exercise. Or it brings them to remote destinations or historical sites. Some consider it an extreme sport, looking for geocaches hidden in mountains or in other nearly inaccessible locations.
Jeffrey Howe, 41, sees it as an opportunity to take kids on adventures to unfamiliar places. The youths at the shelter mostly come form the city, but geocaching has taken them to parks, the suburbs, and, once, to a 498-meter-high mountain.
“Geocaching is a way to give kids the idea that there’s a whole world out there other than what they know from their home neighborhoods and video games,” he said.
How does it work? Log onto the Website and enter your zip code (邮编), then search for caches near your location. Although posted coordinates will take a GPS within about 4.5 meters of a cache, a good hide will require seekers to do a bit of hunting around. Caches can’t be buried underground, nor can they be hidden on private property (财产), in dangerous locations or in some national parks.
Posts written about the find—whether successful or unsuccessful—are an important part of the game, with users proudly recording the places to which they’ve traveled.
1.    What is the meaning of the underlined word geocaching in paragraph 3?
A. A computer game played all over the world.
B. A TV series popular around the world.
C. An outdoor game of hiding and finding things.
D. A name of the latest GPS.
2. In geocaching, which of the following statements about players is NOT TRUE?
A. Players need to have GPS to play the game.
B. Players need to download the coordinates to find the hidden caches.
C. Players need to be young and strong to the play the game.
D. Players are asked to hide things in parks or other places most people can reach.
3.    What is Jeffrey Howe’s attitude toward geocaching?
A. Negative.   B. Objective.  C. Uncertain.  D. Supportive.
4.    Many people like to play this game because __________.
A. they take pleasure in the process of the game
B. they like to visit historical sites
C. they want to find some treasure
D. they want to change their lives

查看答案和解析>>

Researchers at Massachusetts General Hospital for Children (MGHfC) have invented a new term that describes dangers associated with cigarette smoke: third-hand smoke. Study results published in January, 2009 discuss how third-hand smoke is especially dangerous for children.
Have you ever walked into a room that had the smell of cigarette smoke, regardless of the fact that a fan was moving the air and no one was smoking at the time? This is what researchers are calling third-hand smoke — and it represents the poisonous deposits (存积物) that are left behind long after a cigarette is put out. 
Cigarette smoke contains gases and small particles that are deposited on every surface it comes in contact with, for example, the smoker’s hair and clothing, or the environment the cigarette was smoked in. It’s dangerous for young children who may crawl on polluted surfaces. Third-hand smoke is a serious health risk for our kids, especially those who live in the homes of smokers.
Jonathan Winickoff, lead author of the study, explains, “When you come into contact with your baby, even if you’re not smoking at the time, he or she comes in contact with those poisons. And if you breast-feed, the poisons will transfer to your baby in your breast milk.” Winickoff adds however, that nursing a baby if you’re a smoker is still a better choice than bottle-feeding.
Researchers involved in the study also surveyed more than 1,500 families in an effort to learn about adult attitudes regarding the danger third-hand smoke represents to their children and how that might affect smoking in the home.
Approximately 95 percent of nonsmokers and 84 percent of smokers believe that secondhand smoke is dangerous for children.
On the issue of whether third-hand smoke threatens the health of children, 65 percent of nonsmokers and 43 percent of smokers felt that third-hand smoke harms kids. When asked about rules regarding smoking in the home, approximately 88 percent of nonsmokers said they don’t allow smoking, while only 27 percent of smokers forbid smoking in the home.
However, both non-smokers and smokers who felt that third-hand smoking was harmful to children’s health were more inclined to (倾向于) restrict smoking in their homes.
【小题1】The study led by Jonathan Winickoff focused on _______.

A.bad influences long after a cigarette is smoked
B.third-hand smoke and secondhand smoke
C.the bad effects of smoking on common people
D.the terrible smell of cigarette smoke
【小题2】How does the text explain what third-hand smoke is?
A.By telling results of a survey.
B.By giving statistics.
C.By making comparisons.
D.By giving an example.
【小题3】The following measures to prevent the effect of third-hand smoke are effective except _______. 
A.keeping kids out of room when you smoke
B.cleaning the house to get rid of poisons
C.making yourself clean before contacting kids
D.trying to forbid smoking in home

查看答案和解析>>


同步练习册答案