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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 than1,000 children born in Dunedin, Hew Zealand, between April 1972 and March 1973.
"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.
"It 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 excite the developing brain of a young child, and could make reality seem boring by comparison.
"Therefore, 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(挤占) other activities that promote concentration, such as reading, games, sports and play, he said.
Previous studies have linked the habit of long TV watching among children to over weight and diabetes(糖尿病), and another study in the same journal stated the poor nutritional content of the 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 salt," wrote Lisa Powell of the University of Illinois in Chicago.
1. Which of the following would be the best title of the passage?
A. TV viewing may occupy activities promoting concentration
B. Childhood TV viewing can cause teenage problems.
C. Attention problems were observed in both boys and girls.
D. Attention to adolescence problems are highlighted.
2. According to Carl Landhuis, .
A. the study was based on the habits and behaviors of more than 1,000 children.
B. the effects of childhood viewing on attention may last for a short time.
C. the young heavy television viewers are more likely to suffer from attention problems.
D. children addicted to watching TV were more willing to do their school work.
3. What does the underlined word "mundane" refer m?
A. ordinary B. complex C. challenging D. boring
4. Which of the following explanations is NOT true?
A. Habit of TV watching among children is linked to overweight and diabetes.
B.TV viewing may supplant other activities that promote concentration.
C. The rapid scene changes may over excite the developing brain of a young child.
D. Majority of food products advertised on children's television are rich in nutrition.
5. The main purpose of this article is
A. to advise children not to watch TV too much B. to forbid children to watch TW
C. to offer some advice on watching TV D. to introduce the result of a study
查看习题详情和答案>>There is a big question making the rounds among the parents at my daughter’s class．Should the kids refer to the parents，friends as “Mr. Jones” or “Mrs. Smith”，rather than using their first names? I was quite shocked，having come from a home where it would have been unheard of to refer to one of my parents，friends by their first names．This was reserved for only the closest of family friends and relatives，and even they always had “Aunt” or “Uncle” in front their name.
Respect is something that is earned．Unlike many of the other virtues we try to nurture (培养)in our kids，respect is a bit more complicated．It is not only necessary when dealing well with others，but the virtue of self-respect is critical for kids to succeed and feel good about themselves and their choices throughout their lives．
There are several factors that can have a big impact on kids and their ability to be respectful．The first one to consider is manners．Calling adults by their surnames，setting proper examples during sporting events and while driving, and how we talk to each other in our homes all can have an enormous effect on a child’s concept of respect and how important it is．Many of these seemingly trivial(微小的)ideas have become almost outdated，but one should seriously consider the value of these ideas before casting them aside．It is easy to become unaware of these behaviors．Try to keep track of how often your child is subjected to this kind of disrespect．
The media, as you may have guessed，plays a large part in the increase in disrespect．Movies are equally to blame，with a PG movie often containing an abundant amount of profane language.
These factors and others all contribute to an alarming increase in disrespect in society．If we don’t step in and change course，we will find living in a morally respectful culture unlikely.
67．What does the author think of kids’ referring to parents’ friends by their first names?
A．It is common in his family． B．It is OK if the friends are close.
C．Such behavior lacks respect． D．Such behavior sounds funny.
68．What advice does the author give in the passage?
A．Parents should correct kids’ bad behavior before children．
B．Parents should mind their behavior before children．
C．Parents should nurture kids’ self-respect from birth．
D．Parents should choose suitable movies for kids．
69．The underlined word “profane” in the fourth paragraph means“ “
A．rude B．simple C．complicated D．respectful
70．What would be the best fide for the passage?
A．Teaching kids respect B．How to respect others
C．Respect is a virtue D．Respecting others is respecting yourself
查看习题详情和答案>>
Getting a new PC is one thing, Keeping it running smoothly is quite another. While a personal computer should continue to perform well for years, users know that system unsteadiness does exist Yet you can reduce it to the smallest amount by following the tips below .
First, put in as little software as possible. You’11 have fewer software –related problems and a system that is easier to manage.
Second, you should ensure that you have as much memory (RAM) in your PC as you need If you run Windows 98,your computer should have as least 128 megabytes (MB)of RAM and more You can also get by with 128 MB of RAM if you use Windows NT or Windows2000,but these operating systems will run much more smoothly if you have 256 MB of RAM or more.
Third, make sure you buy good hardware. Noname products may be cheaper and sometimes just as good as named-brand products, but name-brand products usually became well-known because of famous companies because Windows will more often support the hardware that you buy ,If you are starting out with to have been tested thoroughly with your operating system, and you will generally experience fewer problems.
Fourth, do prepare for disaster .No matter how well your system runs when you get it ,the day will come when it will need to be replaced .Hopefully, you will replace it because technology has become outdated, but you may need to replace it also because the hard drive crashes or you begin experiencing problems that no one can figure out .That’s why it ‘s important to you’re your important to copy your important information regularly. Whether you use a tape backup device or a CD-RW drive, it’s important to make a regular backup plan and stick to it .
- 1.
If you want to use Windows2000,but your computer only has 64MB.What will you have to do?
- A.Change its RAM for at least 256MB,
- B.Put in good software in your computer.
- C.Enlarge its memory to at least 128 MB
- D.Buy another new computer to match it .
- A.
- 2.
How many pieces of advice on buying good hard-ware does the writer give us ?
- A.Three
- B.Two
- C.One
- D.four
- A.
- 3.
It can be inferred from the passage that……
- A.your computer will save the important information when its hard drive crashes
- B.Your computer might lose all the information it stores when it crashes .
- C.You must not put in much software.
- D.You’d better use 128 MB of Ram if you run Windows NT.
- A.
- 4.
the best title of this passage would be “……”
- A.the Tips You must Follow
- B.How to Start out with a Computer
- C.How to Use your PC Better
- D.How to Keep Your PC Stable
- A.
- 5.
what does the underlined word “it ”(paragraph 1)refer to ?
- A.System unsteadiness
- B.personal computer
- C.To perform well
- D.Getting a new PC
- A.
There is a big question making the rounds among the parents at my daughter’s class. Should the kids refer to the parents’ friends as “Mr. Jones” or “Mrs. Smith”, rather than using their first names? I was quite shocked, having come from a home where it would have been unheard of to refer to one of my parents’ friends by their first names. This was reserved for only the closest of family friends and relatives, and even they always had “Aunt” or “Uncle” in front their name.
Respect is something that is earned. Unlike many of the other virtues we try to nurture（培养）in our kids, respect is a bit more complicated. It is not only necessary when dealing well with others, but the virtue of self-respect is critical for kids to succeed and feel good about themselves and their choices throughout their lives.
There are several factors that can have a big impact on kids and their ability to be respectful. The first one to consider is manners. Calling adults by their surnames, setting proper examples during sporting events and while driving, and how we talk to each other in our homes all can have an enormous effect on a child’s concept of respect and how important it is. Many of these seemingly trivial（微小的）ideas have become almost outdated, but one should seriously consider the value of these ideas before casting them aside. It is easy to become unaware of these behaviors. Try to keep track of how often your child is subjected to this kind of disrespect.
The media, as you may have guessed, plays a large part in the increase in disrespect. Movies are equally to blame, with a PG movie often containing an abundant amount of profane language.
These factors and others all contribute to an alarming increase in disrespect in society. If we don’t step in and change course, we will find living in a morally respectful culture unlikely.
67. What does the author think of kids’ referring to parents’ friends by their first names?
A. It is common in his family. B. It is OK if the friends are close.
C. Such behavior lacks respect. D. Such behavior sounds funny.
68. What advice does the author give in the passage?
A. Parents should correct kids’ bad behavior before children.
B. Parents should mind their behavior before children.
C. Parents should nurture kids’ self-respect from birth.
D. Parents should choose suitable movies for kids.
69. The underlined word “profane” in the fourth paragraph means “________”.
A. rude B. simple C. complicated D. respectful
70. What would be the best title for the passage?
A. Teaching kids respect B. How to respect others
C. Respect is a virtue D. Respecting others is respecting yourself
查看习题详情和答案>>There is a big question making the rounds among the parents at my daughter’s class. Should the kids refer to the parents’ friends as “Mr. Jones” or “Mrs. Smith”, rather than using their first names? I was quite shocked, having come from a home where it would have been unheard of to refer to one of my parents’ friends by their first names. This was reserved for only the closest of family friends and relatives, and even they always had “Aunt” or “Uncle” in front of their name.
Respect is something that is earned. Unlike many of the other virtues we try to nurture（培养）in our kids, respect is a bit more complicated. It is not only necessary when dealing well with others, but the virtue of self-respect is critical for kids to succeed and feel good about themselves and their choices throughout their lives.
There are several factors that can have a big impact on kids and their ability to be respectful. The first one to consider is manners. Calling adults by their surnames, setting proper examples during sporting events and while driving, and how we talk to each other in our homes all can have an enormous effect on a child’s concept of respect and how important it is. Many of these seemingly trivial（微小的）ideas have become almost outdated, but one should seriously consider the value of these ideas before casting them aside. It is easy to become unaware of these behaviors. Try to keep track of how often your child is subjected to this kind of disrespect.
The media, as you may have guessed, plays a large part in the increase in disrespect. Movies are equally to blame, with a PG movie often containing an abundant amount of profane language.
These factors and others all contribute to an alarming increase in disrespect in society. If we don’t step in and change course, we will find living in a morally respectful culture unlikely.
67. What does the author think of kids’ referring to parents’ friends by their first names?
A. It is common in his family. B. It is OK if the friends are close.
C. Such behavior lacks respect. D. Such behavior sounds funny.
68. What advice does the author give in the passage?
A. Parents should correct kids’ bad behavior before children.
B. Parents should mind their behavior before children.
C. Parents should nurture kids’ self-respect from birth.
D. Parents should choose suitable movies for kids.
69. The underlined word “profane” in the fourth paragraph means “________”.
A. rude B. simple C. complicated D. respectful
70. What would be the best title for the passage?
A. Teaching kids respect B. How to respect others
C. Respect is a virtue D. Respecting others is respecting yourself
查看习题详情和答案>>