E
When I was growing up, 16 was always a magical age, a symbol of maturity, responsibility and of course more independence and freedom.  I sat through the hours of Driver’s Ed classes eager to get out on the road. I couldn’t wait to get my driver’s license.
But it’s a different story for today’s teens. In January, the U.S. Department Transportation released 2012 data that showed only 30.7 percent of U.S. teens got their license at age 16, Twenty years before, that number was almost 45 percent.
There are numbers of reasons for the fall – off. The growing responsibilities like paying for insurance and high gas prices discourage teens from getting behind the wheel. Plus, many teens today are so busy with homework, endless hours of activities and part-time jobs, that finding the time for Driver’s Ed classes may be more difficult that ever.
In addition, many states have raised the driving age, or restricted when teens can drive and who they can have in the car. Parents may also be making their own personal restrictions until they feel their teens are responsible enough to drive safely.
Driving is part of the American culture, but it’s not the central focus like it was 25 years ago. They have so many other things to do now. One of the more interesting factors delaying teens driving might be the change of their social life. Today, teens need to look no further than Face book or other social networking sites to connect with their friends. There is simply less need, maybe less desire, to be able to grab the keys and go.
Michelle Wei got her license as a senior in high school because her digital social life made it easy no to drive. “If I couldn’t get a ride to see my friend who lives a town over,” the 19-year-old said, “I could talk on IM or Skype.”
Research has shown that these online relationships can lead to higher quality friendships, so it isn’t necessarily a bad thing. However, it’s important to find a balance. If old face-to-face friendships are good, why not drive to find them?
【小题1】We can infer from the first paragraph that         .

A.Driver’s Ed classes allowed teens to know what maturity was
B.getting a driving license at 16 was a must for American teens
C.16 was considered an age when one could get his driver’s license
D.teens could drive on the road without taking Driver’s Ed classes
【小题2】What does the passage mainly talk about?
A.Desire to drive on the road declines among American teens.
B.Getting a license costs much more than ever before.
C.Social networking sites are changing the life of American teens.
D.American teens are becoming more responsible than ever.
【小题3】Michelle’s Wei’s example is used to explain ________.
A.why American teens are crazy about digital social life
B.what social networking websites are bringing to American teens
C.to what degree the Internet is affecting the American car culture
D.what the Internet does to help teens to get a driving license
【小题4】The last paragraph is reminding the readers that        .
A.the Internet h as a bad effect on the teen’s social life
B.teens should keep a balance in choosing their lifestyle
C.actual contacts can be replaced by talking on line
D.face-to-face friendship is always the best choice

E

When I was growing up, 16 was always a magical age, a symbol of maturity, responsibility and of course more independence and freedom.  I sat through the hours of Driver’s Ed classes eager to get out on the road. I couldn’t wait to get my driver’s license.

But it’s a different story for today’s teens. In January, the U.S. Department Transportation released 2012 data that showed only 30.7 percent of U.S. teens got their license at age 16, Twenty years before, that number was almost 45 percent.

There are numbers of reasons for the fall – off. The growing responsibilities like paying for insurance and high gas prices discourage teens from getting behind the wheel. Plus, many teens today are so busy with homework, endless hours of activities and part-time jobs, that finding the time for Driver’s Ed classes may be more difficult that ever.

In addition, many states have raised the driving age, or restricted when teens can drive and who they can have in the car. Parents may also be making their own personal restrictions until they feel their teens are responsible enough to drive safely.

Driving is part of the American culture, but it’s not the central focus like it was 25 years ago. They have so many other things to do now. One of the more interesting factors delaying teens driving might be the change of their social life. Today, teens need to look no further than Face book or other social networking sites to connect with their friends. There is simply less need, maybe less desire, to be able to grab the keys and go.

Michelle Wei got her license as a senior in high school because her digital social life made it easy no to drive. “If I couldn’t get a ride to see my friend who lives a town over,” the 19-year-old said, “I could talk on IM or Skype.”

Research has shown that these online relationships can lead to higher quality friendships, so it isn’t necessarily a bad thing. However, it’s important to find a balance. If old face-to-face friendships are good, why not drive to find them?

1.We can infer from the first paragraph that         .

A.Driver’s Ed classes allowed teens to know what maturity was

B.getting a driving license at 16 was a must for American teens

C.16 was considered an age when one could get his driver’s license

D.teens could drive on the road without taking Driver’s Ed classes

2.What does the passage mainly talk about?

A.Desire to drive on the road declines among American teens.

B.Getting a license costs much more than ever before.

C.Social networking sites are changing the life of American teens.

D.American teens are becoming more responsible than ever.

3.Michelle’s Wei’s example is used to explain ________.

A.why American teens are crazy about digital social life

B.what social networking websites are bringing to American teens

C.to what degree the Internet is affecting the American car culture

D.what the Internet does to help teens to get a driving license

4.The last paragraph is reminding the readers that        .

A.the Internet h as a bad effect on the teen’s social life

B.teens should keep a balance in choosing their lifestyle

C.actual contacts can be replaced by talking on line

D.face-to-face friendship is always the best choice

 

阅读理解。
     Feb.3,2006-According to CCTV 4,Chinese scientists have recently taken the lead in building the first
full super-conducting experimental nuclear fusion (核聚变) device known  as"artificial sun"in the world,
which will produce energy like the sun.
    It is reported that this device consists of five layers of components(成分)from inside to outside and the
circulating magnet container in the innermost layer looks like a giant" swim ring". In experimental tests,the
temperature of inner" swim ring" will reach as high as 100 million degrees Celsius. Therefore,such
component is a significant part to stimulate solar fusion reactions.
    Wan Yuanxi,who is in charge of the project called Experimental Advanced Super-conducting
Tokamak( EAST) ,an important scientific project under China's ninth five-ycar plan,explained the reason
why the sun always gives off light and why the energy it produces will not decrease. Under high pressure
and high temperature, fusion reactions will take place from inside to outside of the sun.
     Such fusion reactions will give rise to a great deal of energy to enable the sun to continuously emit light
and heat. However,fusion reactions on the sun are uncontrollable,just like an H-bomb explosion seen on
the earth. A huge amount of energy will be produced in a minute,which may be destructive. In order to
make use of such energy,a transformation from the process of energy production to a stable,sustainable
and controllable process is needed. EAST is serving to initiate such a transformation. Under magnetic
force,the op-
eration of hydrogen plasma isotope (同位素) will be restrained in the" swim ring" and high density
collision will happen, namely the fusion reactions. The hydrogen isotope got from one liter of seawater
can produce energy equal to 300 liters of gasoline through complete fusion reactions.
    Wan said that we can get endless clean energy by producing such a device for accomplishing fusion
reactions,which is equal to one or a few small suns made by human beings themselves so that they can
ceaselessly obtain energy from nuclear fusions.
1. What's the best title for the passage?
A. Wan Yuanxi and His Invention.
B. The Sun and the" Artificial Sun".
C. How to Produce the" Artificial Sun".
D. China Built the World's First"Artificial Sun".
2. What does the underlined word" artificial". ( in Para. 1 ) mean?
A. Not real.                        
B. Man-made.
C. Actual.                          
D. Ancient.
3. Which of the following is NOT true?  
A. The temperature of the innermost part of the " artificial sun" will reach as high as 100 ,000 ,000?.
B. EAST is an important scientific project under China's ninth five-year plan.
C. Such fusion reactions in the" artificial sun" will give us limited energy.
D. The hydrogen isotope got from one liter of seawater can produce energy equal
     to 300 liters of gasoline through complete fusion reactions.
4. What's the purpose of making the" artificial sun" ?     
A. To get more energy.
B. To get more light.
C. To have the sun shining for us in 24 hours
D. To study the inside of the real sun.

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