Children can spend hours a day looking at com...

Children can spend hours a day looking at computer screens and other digital devices. Some eye doctors say this leads to an increase in “computer vision syndrome(电脑视力综合症).”

Nathan Bonilla-Warford is an optometrist（验光师）in Tampa, Florida. He has seen an increase in problems in children. “A lot more children come into the office either because their parents have noticed that they have headaches or red or watery eyes or discomfort, or because their nearsightedness appears to be increasing and they’re worried,” he says.

Dr. Bonilla-Warford says part of the problem is that children may be more likely to pay no attention to early warning signs than adults. “Even if their eyes start to feel uncomfortable or they start to get a headache, they’re less likely to tell their parents, because they don’t want to have the game or the computer or whatever taken away,” he explains.

He says another part of the problem is that people blink（眨眼）less often when they use digital devices. He says, “A person who uses an electronic device blinks about one third as much as we normally do in everyday life. And so that can result in the front part of the eye drying and not staying protected like normal.”

Eye doctors offer suggestions like following which is known as the 20/20/20 rule. That means every twenty minutes look away twenty feet or more for at least twenty seconds from whatever device you’re using.

Other suggestions include putting more distance between you and the device and using good lighting. Of course, another way is to spend less time looking at screens. Many experts say children should spend no more than two hours a day using digital devices—with no screen time for children under two.

But not all eye doctors have noticed an increase in problems in children. Dr. David Hunter, from Children’s Hospital Boston, has not seen an increase in his practice. “While it is possible to develop fatigue looking at screens for a long period of time, there’s certainly no proof that it actually causes any damage（伤害）to the eyes.” he says.

1.Which of the following is true according to the passage?

2.What does the underlined word “fatigue” mean?

3.What can be the best title for the passage?

九年级英语阅读理解困难题查看答案及解析

Children can spend hours a day looking at computer screens and other digital devices(数码设备). Some eye doctors say this leads to an increase in “computer vision syndrome(电脑视力综合症).”

Nathan Bonilla-Warford is an optometrist（验光师）in Tampa, Florida. He has seen an increase in problems in children. “A lot more children come into the office either because their parents have noticed that they have headaches or red or watery eyes or discomfort, or because their nearsightedness appears to be increasing and they’re worried,” he says.

Dr. Bonilla-Warford says part of the problem is that children may be more likely to pay no attention to early warning signs than adults. “Even if their eyes start to feel uncomfortable or they start to get a headache, they’re less likely to tell their parents, because they don’t want to have the game or the computer or whatever taken away,” he explains.

He says another part of the problem is that people blink（眨眼）less often when they use digital devices. He says, “A person who uses an electronic device blinks about one third as much as we normally do in everyday life. And so that can result in the front part of the eye drying and not staying protected like normal.”

Eye doctors offer suggestions like following which is known as the 20/20/20 rule. That means every twenty minutes look away twenty feet or more for at least twenty seconds from whatever device you’re using.

Other suggestions include putting more distance between you and the device and using good lighting. Of course, another way is to spend less time looking at screens. Many experts say children should spend no more than two hours a day using digital devices—with no screen time for children under two.

But not all eye doctors have noticed an increase in problems in children. Dr. David Hunter, from Children’s Hospital Boston, has not seen an increase in his practice. “While it is possible to develop fatigue looking at screens for a long period of time, there’s certainly no proof that it actually causes any damage（伤害）to the eyes.” he says.

1.Which of the following is true according to the passage?

2.What does the underlined word “fatigue” mean?

3.What can be the best title for the passage?

九年级英语阅读理解中等难度题查看答案及解析

Nowadays, many children spend hours a day looking at computer screens or other digital(数码的) products. Some eye care doctors say all the screen time has caused more children to have what they call computer vision syndrome(视力综合症).

Nathan Warford is an optometrist(验光师) in the US. He says he has seen more children having eye problems. “More children come into my office because their parents have noticed that they have headaches or red eyes, or because their degree of short-sightedness(近视)appears to be increasing(增加) very fast and they’re worried,” he said.

Dr. Warford says part of the problem is that even if their eyes start to feel uncomfortable or they start to get a headache, some children don’t tell their parents, because they don’t want their games or the computer to be taken away. Another part of the problem is that people blink(眨眼睛) less often when they look at the screen. A person who uses a computer or a digital product blinks about a third as much as we normally(正常地) do in everyday life. If eyes can’t stay wet or are too tired, they will not be protected like normal.

1.Which of the following may be caused by too much screen time?

A. Having wet eyes.　　 B. Having headaches.

C. Having small eyes.　　 D. Having a toothache

2.Why don’t some children tell their parents when their eyes start to feel uncomfortable?

A. They think it is not serious.

B. They want to continue playing computer games.

C. They don’t want their parents to worry.

D. Their parents don’t care about them.

3.People blink about __________ as they normally do when they use computers.

A. a third as much　　 B. two thirds as much　　 C. half as much　　 D. as much

4.From the passage, we can learn that ___________.

A. children should blink as much as possible　　 B. tears can’t protect eyes

C. blinking normally is good for eyes　　 D. it’s useless to blink

5.What is the passage mainly about?

A. Some information about the latest digital products.

B. Dr. Warford’s experience of working out eye problems.

C. Eye problems in children caused by using digital products.

D. It’s bad to use computers.

九年级英语阅读单选困难题查看答案及解析

Nowadays, many children spend hours a day looking at computer screens or other digital (数码的) products. Some eye care doctors say all the screen time has caused more children to have what they call computer vision syndrome (视力综合症).

Nathan Warford is an optometrist in the US. He says he has seen more children having eye problems. “More children come into my office because their parents have noticed that they have headaches (头疼)or red eyes, or because their degree of short-sightedness appears to be increasing (增加)very fast and they’re worried,” he said.

Dr. Warford says part of the problem is that even if their eyes start to feel uncomfortable or they start to get a headache, some children don’t tell their parents, because they don’t want their games or the computer to be taken away. Another part of the problem is that people blink (眨眼睛) less often when they look at the screen.A person who uses a computer or a digital product blinks about a third as much as we normally(正常地) do in everyday life. If eyes can’t stay wet or are too tired, they will not be protected like normal.

1.Which of the following may be caused by too much screen time?

A.Having wet eyes.　　　　　　 B. Having headaches.

C. Having small eyes.　　 　 D.Having a toothache

2.Why don’t some children tell their parents when their eyes start to feel uncomfortable?

A. They think it is not serious.

B. They want to continue playing computer games.

C. They don’t want their parents to worry.

D. Their parents don’t care about them.

3.People blink about　　 as they normally do when they use computers.

A. a third as much　 B. two thirds as much

C. half as much　　 　 D. as much

4. From the passage, we can learn that 　　 .

A. children should blink as much as possible

B. tears can’t protect eyes

C. blinking is good for eyes

D. It’s useless to blink.

5.What is the passage mainly about?

A. Some information about the latest digital products.

B. Dr. Warford’s experience of working out eye problems.

C. Eye problems in children caused by using digital products.

D. It’s bad to use computers .

九年级英语阅读理解困难题查看答案及解析

Nowadays, many children spend hours a day looking at computer screens or other digital (数码的) products. Some eye care doctors say all the screen time has caused more children to have what they call computer vision syndrome (视力综合症).

Nathan Warford is an optometrist in the US. He says he has seen more children having eye problems. “More children come into my office because their parents have noticed that they have headaches (头疼)or red eyes, or because their degree of short-sightedness appears to be increasing (增加)very fast and they’re worried,” he said.

Dr. Warford says part of the problem is that even if their eyes start to feel uncomfortable or they start to get a headache, some children don’t tell their parents, because they don’t want their games or the computer to be taken away. Another part of the problem is that people blink (眨眼睛) less often when they look at the screen.A person who uses a computer or a digital product blinks about a third as much as we normally(正常地) do in everyday life. If eyes can’t stay wet or are too tired, they will not be protected like normal.

1.Which of the following may be caused by too much screen time?

A. Having wet eyes.

B. Having headaches.

C. Having small eyes.

D. Having a toothache

2.Why don’t some children tell their parents when their eyes start to feel uncomfortable?

A. They think it is not serious.

B. They want to continue playing computer games.

C. They don’t want their parents to worry.

D. Their parents don’t care about them.

3.People blink about　　 as they normally do when they use computers.

A. a third as much

B. two thirds as much

C. half as much

D. as much

4.From the passage, we can learn that 　　 .

A. children should blink as much as possible

B. tears can’t protect eyes

C. blinking is good for eyes

D. It’s useless to blink.

5.What is the passage mainly about?

A. Some information about the latest digital products.

B. Dr. Warford’s experience of working out eye problems.

C. Eye problems in children caused by using digital products.

D. It’s bad to use computers .

九年级英语阅读理解中等难度题查看答案及解析

Nowadays, many children spend hours a day looking at computer screens or other digital (数码的) products. Some eye care doctors say all the screen time has caused more children to have what they call computer vision syndrome (视力综合症).

Nathan Warford is an optometrist in the US. He says he has seen more children having eye problems. “More children come into my office because their parents have noticed that they have headaches (头疼)or red eyes, or because their degree of short-sightedness appears to be increasing (增加)very fast and they’re worried,” he said.

Dr. Warford says part of the problem is that even if their eyes start to feel uncomfortable or they start to get a headache, some children don’t tell their parents, because they don’t want their games or the computer to be taken away. Another part of the problem is that people blink (眨眼睛) less often when they look at the screen.A person who uses a computer or a digital product blinks about a third as much as we normally(正常地) do in everyday life. If eyes can’t stay wet or are too tired, they will not be protected like normal.

1.Why don’t some children tell their parents when their eyes start to feel uncomfortable?

A.They think it is not serious.

B.They don’t want their parents to worry.

C.They want to go to the hospital themselves

D.They want to continue playing computer games.

2.People normally blink about 20 times a minute.How many times do they blink if they use a computer?

A.About 4 times B.About 7 times C.About 11 times D.About 15 times

3.From the passage, we can learn that________ .

A.blinking is good for eyes

B.sleeping late is bad for eyes

C.children should blink as much as possible

D.we shouldn’t look at screens in a dark room

4.What is the passage mainly about?

A.Some ways of protecting children’s eyes.

B.Some information about the latest digital products.

C.Dr. Warford’s experience of working out eye problems.

D.Eye problems in children caused by using digital products.

九年级英语阅读单选中等难度题查看答案及解析

Nowadays, many children spend many hours a day looking at computer screens or other digital products(数码产品). Some eye care professionals (专业人士) say all the screen time has caused more children to have eye problems.

Nathan Warford is an optometrist ( 验光师) in Florida, USA. He says he has seen an increase in problems in children.

“Some children come into the office because their parents have found that they have red eyes. Others come because their degree of short-sightedness is increasing very fast and their parents are worried,” he said.

Part of the problem is that even if their eyes start to feel uncomfortable or they start to get a headache, some children don't tell their parents. These children are afraid that their parents would take their games or the computer away.

Another part of the problem is that people blink (眨眼睛) less often when they look at the screen. When a person uses a computer or other digital products, he or

she blinks about a third as much as we normally do in everyday life. If we blink less often, our eyes can't stay wet or are too tired and they will not be protected like

normal.

1.According to Dr Warford, how many kinds of eye problems may too much screen time cause?

A. Two.　　 B. Three.　　 C. Four.　　 D. Five.

2.Some children don't tell their parents their eye problems because _______.

A. they think they're not serious

B. they don't want their parents to worry

C. they want to go to hospital themselves

D. they want to continue playing computer games

3.People normally blink about 20 times a minute. How many times do they blink if they use a computer?

A. About 4.　　 B. About 7.　　 C. About 11.　　 D. About 15.

4.From the passage, we can learn that _______.

A. blinking is good for eyes

B. sleeping late is bad for eyes

C. we should blink as much as possible

D. we shouldn't look at screens in a dark room

5.What is the passage mainly about?

A. Some ways of protecting children's eyes.

B. Some information about the latest digital products.

C. Dr Warford's experience of working out eye problems.

D. Eye problems in children caused by using digital products.

九年级英语阅读单选中等难度题查看答案及解析

Nowadays, many children spend hours a day looking at computer screens or other digital (数码的) products. Some eye care doctors say all the screen time has caused more children to have what they call computer vision syndrome (视力综合症).

Nathan Warford is an optometrist in the US. He says he has seen more children having eye problems. “More children come into my office because their parents have noticed that they have headaches (头疼)or red eyes, or because their degree of short-sightedness appears to be increasing (增加)very fast and they’re worried,” he said.

Dr. Warford says part of the problem is that even if their eyes start to feel uncomfortable or they start to get a headache, some children don’t tell their parents, because they don’t want their games or the computer to be taken away. Another part of the problem is that people blink (眨眼睛) less often when they look at the screen.A person who uses a computer or a digital product blinks about a third as much as we normally(正常地) do in everyday life. If eyes can’t stay wet or are too tired, they will not be protected like normal.

1.Which of the following may be caused by too much screen time?

A.Having wet eyes.　　　　　 B. Having headaches.

C. Having small eyes.　　　 D.Having a toothache

2.Why don’t some children tell their parents when their eyes start to feel uncomfortable?

A. They think it is not serious.

B. They want to continue playing computer games.

C. They don’t want their parents to worry.

D. Their parents don’t care about them.

3.People blink about　　 　　 as they normally do when they use computers.

A. a third as much　 B. two thirds as much

C. half as much　 　　 D. as much

4.From the passage, we can learn that　　 　　 .

A. children should blink as much as possible

B. tears can’t protect eyes

C. blinking is good for eyes

D. It’s useless to blink.

5.What is the passage mainly about?

A. Some information about the latest digital products.

B. Dr. Warford’s experience of working out eye problems.

C. Eye problems in children caused by using digital products.

D. It’s bad to use computers .

九年级英语阅读理解中等难度题查看答案及解析

Nowadays, many children spend hours a day looking at computer screens or other digital (数码的) products. Some eye care doctors say all the screen time has caused more children to have what they call computer vision syndrome (视力综合症).

Nathan Warford is an optometrist in the US. He says he has seen more children having eye problems. “More children come into my office because their parents have noticed that they have headaches (头疼)or red eyes, or because their degree of short-sightedness appears to be increasing (增加)very fast and they’re worried,” he said.

Dr. Warford says part of the problem is that even if their eyes start to feel uncomfortable or they start to get a headache, some children don’t tell their parents, because they don’t want their games or the computer to be taken away. Another part of the problem is that people blink (眨眼睛) less often when they look at the screen.A person who uses a computer or a digital product blinks about a third as much as we normally(正常地) do in everyday life. If eyes can’t stay wet or are too tired, they will not be protected like normal.

1.Which of the following may be caused by too much screen time?

A.Having wet eyes.

B. Having headaches.

C. Having small eyes.

D.Having a toothache

2.Why don’t some children tell their parents when their eyes start to feel uncomfortable?

A. They think it is not serious.

B. They want to continue playing computer games.

C. They don’t want their parents to worry.

D. Their parents don’t care about them.

3.People blink about　　 as they normally do when they use computers.

A. a third as much　 B. two thirds as much

C. half as much　 　　 D. as much

4.From the passage, we can learn that 　　 .

A. children should blink as much as possible

B. tears can’t protect eyes

C. blinking is good for eyes

D. It’s useless to blink.

5.What is the passage mainly about?

A. Some information about the latest digital products.

B. Dr. Warford’s experience of working out eye problems.

C. Eye problems in children caused by using digital products.

D. It’s bad to use computers .

九年级英语阅读理解中等难度题查看答案及解析

How much time do you spend in front of a screen every day？ If your answer is about one hour，then maybe you are one of the ____ teenagers in the world．

Scientists did a ____． They asked students aged 13 to 18 how long it ____ them to have fun on phones and computers． They also asked about ____ feelings of happiness． They found that those who spend more time on their smart phones are unhappier． "Spend no more than two hours a day on digital media（电子产品），___ try to spend more time with friends and on exercise． These two activities bring greater happiness．" Jean Twenge， the scientist who led the study ，said．

1.A. happy B. happier C. happiest

2.A. survey B. discovery C. test

3.A. takes B. spends C. costs

4.A. your B. our C. their

5.A. but B. and C. or

九年级英语完型填空中等难度题查看答案及解析