题目列表(包括答案和解析)
A little under one-third of U.S. families have no Internet access and do not plan to get it, with most of the holdouts seeing little use for it in their lives, according to a survey released on Friday.
Park Associates, a Dallas-based technology market research firm, said 29 percent of U.S. families, or 31 million homes, do not have Internet access and do not intend to subscribe(预订) to an Internet service over the next 12 months. The second annual National Technology Scan conducted by Park found that the main reason why potential customers say they do not subscribe to the Internet is because of the low value to their daily lives rather than concerns over cost.
Forty-four percent of these families say they are not interested in anything on the Internet, versus just 22 percent who say they cannot afford a computer or the cost of Internet service, the survey showed. The answer "I'm not sure how to use the Internet" came from 17 percent of participants who do not subscribe. The response "I do all my e-commerce shopping and YouTube-watching at work" was cited by 14 percent of Internet-access refuseniks. Three percent said the Internet doesn't reach their homes.
The study found U.S. broadband adoption grew to 52 percent over 2006, up from 42 percent in 2005. Roughly half of new subscribers converted(转变) from slower-speed, dial-up Internet access while the other half of families had no prior access.
"The industry continues to chip (击破)away at the core of non-subscribers, but has a long way to go," said John Barrett, director of research at Parks Associates. "Entertainment applications will be the key. If anything will pull in the holdouts, it's going to be applications that make the Internet more similar to pay-TV," he predicted.
What does the underlined word “holdouts” in the first paragraph most probably mean?
A. some American families
B. those who hold out one’s opinions
C. those who have been surveyed
D. those who still haven’t access to the Internet currently
Many potential customers refuse to subscribe to the Internet mainly because __________.
A. they show too much concern about the cost
B. they can find little value of it
C. they do most YouTube-watching at work
D. the Internet doesn’t reach their homes
From the passage we can infer that _____________.
A. It is not an easy job to transform those holdouts into the Internet users
B. people will adopt dial-up Internet access no more
C. many Americans enjoy doing e-commerce shopping at home
D. more than half of the population are using the Internet in 2005
According to John Barrett, what is the key to attracting more U.S. families to broadband service?
A. making the Internet look more similar to TV set
B. applying the Internet more to entertainment
C. providing more pay-TV programs
D. chipping away at the core of non-subscribers
Which is the best title for the passage?
A. Web develops with technology
B. The present situation of web
C. Many Americans see little point to web
D. It is urgent to promote web service
A few years ago, when I was still in high school, I met a wonderful and warm teacher. At that time in my life, there were many changes to adjust to, apart from the usual teenage troubles. My parents had divorced, so my elder brother and I had chosen to stay with my dad. Due to the fact that he was keeping the house, we didn’t have to move.
During this time, my teacher took a special interest in me. Being my English teacher, she encouraged my mind to travel to creativity I had long given up. She brought me out of the shell I built.
She became my mother, my older sister, my friend and my teacher. The one thing she couldn’t do though was to make me more girly as growing up with only my dad and brother made me a real tomboy.
Sometimes, I would be really immature(不成熟的), especially if she was scoring me less than others on purpose. She knew I could do better than what I was handing in and so pushed me to extend further than limits.
When I finished school and then after college I was about to leave my hometowns she gifted me a watch that every second, with my pulse, should remind me of the one person who will forever wait and love me without reservation.
Time has passed and our friendship is distant, but in my heart, soul and mind, she is the closest I ever got.
The writer and her elder brother chose to live with their father simply because _________.
A. their mother was expecting to have another baby
B. they didn’t have to move out of their house
C. they hated their mother remarried
D. they had a closer relationship with their father
How did the writer get along with her studies before she met her English teacher?
A. She was hopeless and had given up her studies.
B. She was getting along well with her studies.
C. She had some trouble with her studies.
D. She lacked interest in creativity.
The writer behaved herself like a boy because ________.
A. she needed the love of mother
B. she wanted to learn from her father and brother
C. she lived with only men all the time
D. her English teacher didn’t care about her
What was the writer’s attitude to the watch given by the teacher?
A. She considered it to be very useful.
B. She valued it very much.
C. She kept it very well.
D. She wanted to do something later in return for it.
A Concussion(脑震荡) happens when the brain is shaken, often in a car crash or a fall or a strike on; the head in sports.Concussions can be mild, but doctors may order a CT scan to look for a more serious injury.But a recent study warned that more children than necessary are being exposed to radiation this way.
A national team led by two doctors at the University of California, Davis, studied hospital records from thousands of children with head injuries. They found that in many cases, the risk of developing cancer from the radiation outweighed the risk of a serious brain injury.
The study found that one in five children over age two had a low risk of serious injury but received CT scans anyway. The same was true of almost one in four children under two years of age.
The researchers have developed rules to predict if a head injury is serious enough for a scan. For children under two, doctors are advised against it if there is:
·Normal mental activity.
·No swelling in the back of the head.
·No feeling of a broken bone in the skull. (头骨)
·And no loss of consciousness for more than five seconds.
Doctors should also consider how the child was injured and whether the parents say the child is acting normally.
For patients from two to eighteen, the guidelines are similar ——except there should be no loss of consciousness, no vomiting(呕吐) and no severe headache.
Earlier this year, the British Journal of Sports Medicine published new guidelines for concussions in children and teens. International experts said they should not return to sports or school until fully recovered. The brain also needs a "cognitive rest," they say, by restricting activities like video games, texting and watching TV.
It often takes young people longer than adults to recover from a concussion. The experts say individual progress and not a set time period should always guide a decision to return to play. More than one million cases of concussion are reported each year in the United States alone. A congressional committee has called a hearing Wednesday to discuss legal issues related to head injuries in football.
The researchers at the -University of California found that children who received CT scans
A.were likely to suffer brain injuries
B.wouldn't have normal mental activity
C.would lose consciousness now and then
D.were likely to develop cancer
For patients from two to eight, the guidelines are similar to the ones for children under two except___________.
A. there is normal mental activity.
B. there is no swelling in the back of the head.
C. there is no feeling of a broken bone in the skull.
D. there should be no loss of consciousness
What can we learn from the last two paragraphs?
A.Texting is harmful to patients’ recovery from concussions.
B.Patients with brain injuries can play many sports.
C.Adults need a longer time than teens to recover from concussions.
D.It takes at least a year for individuals with brain injuries to fully recover.
The author of the passage mainly___.
A.describes the risks of brain injuries
B.suggests CT scans are of practical use
C.tells us about the risks of brain injury tests
D.argues against new guidelines for concussions
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