Watching television more than two hours a day early in life can lead to attentio

Watching television more than two hours a day early in life can lead to attentio

题型:不详难度:来源:
Watching television more than two hours a day early in life can lead to attention problems later in adolescence, according to a study released on Tuesday.
The roughly 40 percent increase in attention problems among heavy TV viewers was observed in both boys and girls. The link was established by a long-term study of the habits and behaviors of more than 1,000 children born in Dunedin, New Zealand, between April 1972 and March 1973.
The children aged 5 to 11 watched an average of 2.05 hours of weekday television. From age 13 to 15, time spent in front of the tube rose to an average of 3.1 hours a day.
"Those who watched more than two hours, and particularly those who watched more than three hours, of television per day during childhood had above-average symptoms of attention problems in adolescence," Carl Landhuis of the University of Otago in Dunedin wrote in his report, published in the journal Pediatrics.
Young children who watched a lot of television were more likely to continue the habit as they got older, but even if they did not the damage was done, the report said.
"This suggests that the effects of childhood viewing on attention may be long lasting," Landhuis wrote.
Landhuis offered several possible explanations for the association.
One was that the rapid scene changes common to many TV programs may over stimulate(刺激)the developing brain of a young child, and could make reality seem boring by comparison. "Hence, children who watch a lot of television may become less tolerant of slower-paced and more mundane tasks, such as school work," he wrote.
It was also possible that TV viewing may supplant other activities that promote concentration, such as reading, games, sports and play, he said.
Previous studies have linked the sedentary固定不动的)habit of TV watching among children to obesity and diabetes, and another study in the same journal cited the poor nutritional content of the overwhelming majority of food products advertised on the top-rated US. children"s television shows.
Up to 98 percent of the TV ads promoting food products that were directed at children aged 2 through 11 "were high in either fat, sugar, or sodium," wrote Lisa Powell of the University of Illinois in Chicago.
56. The recent survey shows that _________.
A. watching TV can cause all kinds of diseases for children
B. TV sets have played an important part in our daily lives
C. Watching TV over 2 hours a day early in life can cause attention problems later in adolescence
D. watching TV has side effects on children’s future
57. People used to think that _________.
A. watching TV more than 2 hours every day did good to children’s health
B. the sedentary habit of TV watching among children could easily lead to obesity and diabetes
C. the children wasn’t patient with their homework because of watching TV too much
D. it was very important for children to watching TV early in life
58. The underlined word “Hence” means _________.
A. In that case    B. And yet    C. On the contrary    D. For this reason
59. In Landhuis’ opinion, _________.
A. attention problems caused by watching TV during childhood may be hard to get rid of
B. how to develop children’s attention problems is a lasting problem
C. the key of settling attention problems is not watching TV too much
D. there shouldn’t have many food products ads on children"s television shows
答案
56—59 CBDA
解析

举一反三
The following symbols have appeared on clothes labels for four decades, each one chosen by international experts for its simplicity and clarity.
Yet for most people, washing instructions might as well be written in Martian.
According to a new poll, nine in ten people are unable to decipher common symbols used on clothes labels. Even those who have mastered the difference between a wool and a synthetics(化学合成物)wash admit being baffled by the confusing array(排列)of boxes, circles and crosses used to give advice about drying and bleaching(漂白).
The findings come from a poll of 2,000 people carried out by YouGov for Morphy Richards. A third of people surveyed said that they recognized none of the several symbols shown, while the only symbol recognized by more than half of people was the iron with a single dot. Around 70 per cent knew it meant "iron on a low heat". Just 10 per cent sign knew the sign for "do not dry clean", while only 12 per cent were familiar with "drip dry only".
Despite the sexual revolution, women are still more knowledgeable than men. Awareness was highest among 18 to 29-year-old women---for whom taking care of clothes is clearly important.
Chris Lever, from Morphy Richards, said: "Clothes Care symbols are a unique language, clearly a language that few people in the UK have taken the time to learn."
"Learning the basics such as which icon represents tumble dry and which represents normal wash would go a long way to getting the best out of clothes."
The Home Laundering Consultative Council said it was not surprised to learn that people were unfamiliar with them.
"It"s disappointing that there is a lack of recognition, but it"s a story that"s repeated time and time again," said a spokesman, Adam Mansell. "We are a small organization and we don"t have a big budget."





60. Women know more about these common symbols than men, because _________.
A. women have the gift of recognizing these symbols by nature
B. women pay more attention to taking care of clothes in their daily life
C. women have much time to know about these symbols
D. women take advantage of the sexual revolution
61. Which of the following can be recognized by the majority of people?
                       
A              B                 C              D
62. Which of the following statements is NOT correct?
A. Washing clothes is damaging them if we don’t know about some symbols used on clothes labels.
B. Washing clothes is also a cultured knowledge.
C. More and more people devote much time to studying these symbols used on clothes labels.
D. Clothes Care symbols are a unique language, which few people spend time to learn.
题型:不详难度:| 查看答案
完形填空(共20小题,每小题1.5分,满分30分)
When she was seven, we found out that Jenny had a few problems. Several ___36___ and many speech classes later, we found out that besides hearing, she also had Juvenile Rheumatoid Arthritis(幼儿类风湿性关节炎).
She could not put ___37___ on the heels of her feet, so she walked on tiptoe and when the pain became unbearable, I carried her.
All ___38___ grade school, and on into high school, Jenny suffered, yet never complained. She ___39___ a smile on her face, a song on her lips, and a(n) ___40___ and acceptance of others. I don’t remember her ever
___41___ self-pity. She ran when she could run. She played when she could play, and she danced when she could dance. And, when she could do ___42___ of these things, she took her medicine, and she waited until she ___43___.
Jenny never competed in a sport. She could not even take part in a gym class. Jenny continued to have one operation after another on her ___44___. Finally, her hearing improved to 60%, and she taught herself to ___45___ lips.
She was ___46___ popular and funny, attending every football game, and cheering the team on. She carried her pillow everywhere she went, so that she could ___47___ the pain, when she sat down. Then came her senior year. She would be considered for scholarships; however, school activities, especially ___48___, could often mean the ___49___ between receiving an award and losing out.
So Jenny came to a decision. She ___50___ the high school football coach to let her participate. She got her best friend to sign up with her. Finally the coach ___51___, saying, “If you miss one game, you are out!” So, Jenny became a member o the Garrett High School Football Team.
She carried bottles of water to her teammates. She did much preparation work for the team. She worked so actively that it ___52___ to be one of the best year for the Garrett High School Football Team, in its 25-year history.
When asked why he thought the team was winning all their games, even in the ___53___ of injury, one team member explained, “Well, when you’ve been knocked down, and you can’t seem to move, you ___54___ and see Jenny Lewis. It makes anything the rest of us may suffer seem pretty ___55___.”
36. A. trials                  B. examinations                   C. experiments              D. treatments
37. A. control        B. power                             C. strength                    D. pressure
38. A. through              B. across                      C. over                         D. above
39. A. expressed            B. wore                               C. took                         D. made
40. A. love                   B. admiration                C. envy                        D. desire
41. A. speaking             B. talking                            C. sharing                     D. voicing
42. A. nothing        B. all                                  C. none                        D. some
43. A. would                 B. could                              C. should               D. might
44. A. ears                    B. legs                                C. arms                        D. mouth
45. A. see                     B. learn                               C. read                         D. hear
46. A. never                  B. totally                      C. occasionally              D. seldom
47. A. struggle              B. lose                                C. stop                         D. ease
48. A. grades         B. relationships                    C. sports                D. communication
49. A. importance   B. difference                 C. chance                     D. choice
50. A. begged        B. demanded                        C. required                   D. managed
51. A. gave out             B. gave in                            C. held up                    D. held on
52. A. turned over  B. turned out                C. turned up                 D. turned in
53. A. sight                   B. fear                                C. risk                          D. face
54. A. looked down       B. looked in                         C. looked up                 D. looked out
55. A. different             B. worth                              C. difficult                   D. unimportant
题型:不详难度:| 查看答案
Critics of cloning often repeat the question related to the controversial(有争议的) science “Just because we can, does it mean we should?”  The closer we come to being able to clone a human, the hotter the debate over it grows. For all the good things cloning may achieve, opponents say that it will do just as much harm. Another question is how to governing cloning process.
There is federal official law banning cloning in the United States, but several states have passed their own laws to ban the practice. The US Food and Drugs Administration(FDA), has also said that anyone in the United States attempting human cloning must first get its permission. In Japan, human cloning is a crime that is punished by up to 10 years in prison.
While laws are to ban cloning at this time, some scientists believe that the technology is not ready to be tested on humans. Ian Wilmut, one of the co-creators of Dolly, has even said that human cloning projects would be an irresponsible crime. Cloning technology is still in its early stages, and nearly 98% percent of cloning efforts end in failure. The embryos are either not suitable for implanting into the uterus(子宫) or they die shortly after birth.
The clones that do survive end up suffering from deadly or problematic genetic abnormalities(畸形). Some clones have been born with faulty heart, lung problems and blood vessel problems. One of the most famous cases was a cloned sheep that was born with but malformed arteries(畸形动脉) leading to the lungs.
Opponents of cloning will point out that we can enthanize(安乐死) these faulty clones of other animals, but they ask what if a human clone is born with these same problems. Advocates of cloning respond that it is now easier to pick out faulty embryos even before they are implanted into the mother. The debate over human cloning is just beginning, but as science advances, it could be the biggest moral dilemma of the 21st century.
68. Which word in the text is the opposite of the underlined word “opponents”?
A. critics        B. advocates          C. scientists           D. co-creators
69. The writer writes this passage mainly to ________________.
A. support passing laws to ban human cloning
B. list problems with human cloning
C. introduce critics’ ideas about human cloning
D. state the debate over human cloning
70. Which of the following will Ian Wilmut probably NOT agree with?
A. Cloning technology is in its early stages.
B. Human cloning should be made illegal.
C. Very few cloning efforts are successful.
D. Cloning technology is ready to be tested on humans
题型:不详难度:| 查看答案
Speeding off in a stolen car, the thief thinks he has got a great catch. But he is in for an unwelcome surprise. The car is fitted with a remote immobiliser (锁止器), and a radio signal from a control centre miles away will ensure that once the thief switches the engine off, he will not be able to start it again.
The idea goes like this. A control box fitted to the car contains a mini-cellphone, a micro- processor and memory, and a GPS (全球定位系统) satellite positioning receiver. If the car is stolen, a coded cellphone signal will tell the control centre to block the vehicle"s engine management system and prevent the engine being restarted.
In the UK, a set of technical fixes is already making life harder for car thieves. "The pattern of vehicle crime has changed,’ says Martyn Randall, a security expert. He says it would only take him a few minutes to teach a person how to steal a car, using a bare minimum of tools. But only if the car is more than 10 years old.
Modern cars are far tougher to steal, as their engine management computer won"t allow them to start unless they receive a unique ID code beamed out by the ignition (点火) key. In the UK, technologies like this have helped achieve a 31% drop in vehicle-related crime since 1997.
But determined criminals are still managing to find other ways to steal cars, often by getting hold of the owner"s keys. And key theft is responsible for 40% of the thefts of vehicles fitted with a tracking system.
If the car travels 100 metres without the driver confirming their ID, the system will send a signal to an operations centre that it has been stolen. The hundred metres minimum avoids false alarms due to inaccuracies in the GPS signal.
Staff at the centre will then contact the owner to confirm that the car really is missing, and keep police informed of the vehicle"s movements via the car"s GPS unit.
66. What"s the function of the remote immobilizer fitted to a car?
A .To allow the car to lock automatically when stolen.
B. To prevent the car thief from restarting it once it stops.
C. To help the police make a surprise attack on the car thief.
D. To prevent car theft by sending a radio signal to the car owner.
67. By saying "The pattern of vehicle crime has changed" (Lines 1-2.Para. 3). Martyn Randall suggests that ____.
A. self-prepared tools are no longer enough for car theft
B. the thief has to make use of computer technology
C. it takes a longer time for the car thief to do the stealing
D. the thief has lost interest in stealing cars over 10 years old
68. What is essential in making a modern car tougher to steal?
A. A GPS satellite positioning receiver.       B. A unique ID card.   
C. A special cellphone signal.                D. A coded ignition key.
69. Why does the tracking system set a 100-metre minimum before sending an alarm to the operations centre?
A. To give the driver time to contact the operations centre.
B. To allow for possible errors in the GPS system.
C. To keep police informed of the car"s movements.
D. To leave time for the operations centre to give an alarm.
70. What will the operations centre do first after receiving an alarm?
A. Start the tracking system.         B. Locate the missing car.
C. Contact the car owner.          D. Block the car engine
题型:不详难度:| 查看答案
       There are many ways to find a job. Local stores often have areas where people can put small signs telling what kind of service they need or can provide. Such services include caring for children or cleaning houses.
Or, job searchers can look in the newspaper. Local newspapers have employment announcements placed by companies seeking workers.
Another popular tool for finding jobs is the Internet. For example, people in four hundred and fifty cities around the world can use the Craigslist Web site to buy objects, meet people or find a job. Craigslist says that it receives two million new job listings each month.
Another useful way to find a job is through a college or university. For example, students at the University of Texas can go to the Career Exploration Center to get help in finding a job. Of course, looking for a job requires knowing what kind of work you want to do. For example, there is a book called “What Color is Your Parachute (降落伞)?” by Richard Bolles. This book has been helping people choose a career (职业) since it was first published in nineteen seventy.
Some experts also help people find jobs. Susan W. Miller owns a company called California Career Services in Los Angeles. She says her company helps people find jobs by first helping them understand their advantages, goals and interests. Then she provides them with methods and resources to help them find the right job.
61. What is the passage mainly about?
A. Finding a job.                           B. College students’ part-time jobs.
C. Craigslist Web site.                       D. The relation between study and work.
62. By logging on the Craigslist Web site, you can ______.
A. sell your old things                      B. do some shopping online
C. create your own announcement board        D. get useful information about 450 cities
63. “What Color is Your Parachute?” is a book which gives tips to those who want to _____.
A. work on the airplane    B. buy a parachute    C. publish a book   D. find a suitable job
64. It can be learned from the passage that ______.
A. companies often put job information in local shops
B. the Internet is the most popular tool for job hunters in the USA
C. Susan W. Miller’s company is helping people choose careers
D. California Career Services mainly serves university students
65. How many ways of finding a job are mentioned in the passage?
A. Three.              B. Four.          C. Five.                D. Six.
题型:不详难度:| 查看答案
最新试题
热门考点

超级试练试题库

© 2017-2019 超级试练试题库,All Rights Reserved.