11.Learning to drive is important to the independence of teenagers,but it is also a great responsibility.Although having a law that keeps 16-year-old drivers from having more than one teenager in the car with them seems unfair,there are convincing reasons for this requirement.
The Insurance Institute of Highway Safety reports that teens are four times more likely than older drivers to be involved in an automobile accident.It also reports that 16and 17-year-old drivers are twice as likely to have an accident if they have two teenage friends in the car and four times if they have three or more teenage friends in the car with them.Fatal crashes of 16-year-old drivers involve the highest percentage of speeding,driver error,and number of passengers.This information is enough to cause any reasonable person to wonder about the wisdom of allowing new teen drivers to take a carload of friends anywhere,even if the law permits it.
A study at the National Institutes of Health indicates that the part of the human brain that controls judgment and evaluates the consequences of our actions might not be fully formed until the age of 25.Until this study,researchers had placed the age of 18.If this is true,it could explain the reckless(鲁莽的)behavior of many teens,behavior that even extends into their twenties.It could also be a strong reason for being watchful about the driving settings of young people.
This is not the only study that indicates such concern is necessary.One study at Temple University in Philadelphia examines the results of peer pressure in risky driving situations.The study,which uses a driving game,has an individual guide a car through a course,both alone and in the presence of friends.Three different age groups participated in the study:13-16,18-22,and 24and older.Members of the oldest group showed caution whether driving alone or with friends present,but the two younger groups took more chances when they were with their friends.Furthermore,because these drivers were accustomed to the noise an disturbance of many passengers,they were unable to see their own mistakes.Once again,this is a good suggestion that a law restricting the number of teenagers in the car with a young driver is a good idea.
12.What does the author mainly tell us in Paragraph 2?B
A.There are many causes behind the teen's driving accidents.
B.It's reasonable to strictly limit the passenger number of teen drivers.
C.New teen drivers have to ask permission before driving with friends.
D.Many deaths have occurred because of inexperience and overconfidence.
13.From the two studies,the author probably suggests thatD.
A.different age groups have different peer pressure
B.underdeveloped brain makes teens ignore their mistakes
C.teenagers often give wrong judgments above passengers'notice
D.driving settings are bound up with the risk of accidents
14.We can infer that the law restriction can probablyA.
A.protect teens on the highway
B.raise teens'driving skills
C.reduce the number of fatal crashes
D.force teens to drive with wisdom
15.What does"it"refer to in Paragraph 2?D
A.Number of passengers.
B.This information.
C.Wisdom.
D.Teen drivers take a carload of friends anywhere.
7.Do you have a hobby-something you really enjoy doing in your spare time?Have you ever wondered what it would be like if you could spend more time on your hobby and less time at work?Maybe it's not an either/or situation.Perhaps you can do both at the same time.
When choosing a career,one of the things you must consider is your interests.Why then do so many people not even think about their hobbies when a hobby is,in fact,an interest?Perhaps it's because even Webster's Dictionary defines a hobby as"a pursuit (消遣,嗜好) outside one's regular occupation (职业)".Maybe this is a rule you should break.After all,no one ever said your hobby had to stay separate from your occupation.In addition people are usually very skilled at their hobbies.The combination of interest and skill is a very compelling (令人信服的) reason to choose a particular career.
"Who's going to hire someone who loves making beaded (串珠状的) jewelry?"you may ask yourself.Good question.Don't wait for s omeone to hire you.Start your own business.That may be the best way to combine your hobby with your career.Those with hobbies that involve creating things,i.e.jewelry,clothing,or pottery,may do well to sell those items on their own.Before you go forward with your plans,though,you should find out whether being an entrepreneur (企业家) is for you.
When you attempt to turn your hobby into a career,don't forget to do your homework.Even though you may have enjoyed training your pet birds to sing the national song,that doesn't mean you're suitable to be an animal trainer.Be sure to research your career choice completely.There may be aspects of it that just aren't for you.In that case,stick to your day job,as they say,and save your hobby for your free time.
29.Why does the writer ask two questions in the first paragraph?A
A.To lead in the topic of hobby and career.
B.To describe what can be a hobby.
C.To compare hobbies with work.
D.To explain what a hobby is.
30.We can infer from paragraph 2 that many peopleB.
A.always mix their interest with their hobbies 
B.often separate their hobbies from their jobs
C.daren't break a rule of choosing their jobs  
D.don't know the true meaning of a hobby
31.What can we learn from the last paragraph?C
A.Doing one's homewo rk may be a hobby.
B.A day job can't be a hobby in your spare time.
C.Not every hobby is suitable to become a career.
D.An animal trainer has a hobby of singing songs.
32.By writing this passage,the writer wants to introduceD.
A.how to choose a hobby for your free time   
B.how to develop your own hobby
C.how to treat your job as a hobby          
D.how to turn a hobby into a career.

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