If your mother told you to eat carrots so you’d be able to see in the dark, she was right. It turns out that feeding kids carrots is just one of a number of things to keep eyes healthy. Other things include regular eye exams, and sunglasses or hats are also very helpful, experts say.
While eye disease is sometimes hereditary(遗传的), some are still preventable(可预防的), said Dr. Ron Weber, an Atlanta-based ophthalmologist. For example, nearsightedness, “not only has a genetic(基因的) component but is also influenced by how kids use their eyes during childhood,” he told Reuters Health by phone.
He said that extended close work, such as reading, has long been thought to cause nearsightedness. Recent support has come from a study in which people with a higher level of education were more likely to have nearsightedness, because they spend more time reading or working on computers. Another study showed that children who spend more time outdoors are less likely to become nearsighted.
But these findings don’t mean kids should be stopped from reading or working on the computer. Instead, Weber suggests, make sure a child’s environment is bright enough while they are doing close work. Parents should also help kids get into the habit of holding their reading material at the perfect distance – about 18 to 22 inches, he said. Finally, taking a break every five minutes or so, to let the eyes relax and focus on an object in the distance, will also help.
One of the most important things a parent can do to help head off eye disease and vision problems is to make sure their child gets regular eye exams, beginning early in life. “The majority of vision problems in children are preventable and treatable,” said Dr. Ida Chung.
1.What does the writer want to tell us in the passage?
A. It is important to keep your eyes healthy.
B. People seldom pay attention to eye health.
C. It is necessary to give your kids carrots.
D. All the eye disease are hereditary.
2.Which one is good for our eye health according to the third paragraph?
A. Spend more reading on computers.
B. Spend more time indoors.
C. Spend more time doing outdoor activities.
D. Spend more time working on computers.
3.The underlined part in the last paragraph means__________.
A. treat B. stop C. cover D. increase
4. Which can be the BEST title for this passage?
A. Eating carrots
B. Eye disease
C. How to keep eyes healthy
D. The importance of eye health.
九年级英语阅读理解困难题
If your mother told you to eat carrots so you’d be able to see in the dark, she was right. It turns out that feeding kids carrots is just one of a number of things to keep eyes healthy. Other things include regular eye exams, and sunglasses or hats are also very helpful, experts say.
While eye disease is sometimes hereditary(遗传的), some are still preventable(可预防的), said Dr. Ron Weber, an Atlanta-based ophthalmologist. For example, nearsightedness, “not only has a genetic(基因的) component but is also influenced by how kids use their eyes during childhood,” he told Reuters Health by phone.
He said that extended close work, such as reading, has long been thought to cause nearsightedness. Recent support has come from a study in which people with a higher level of education were more likely to have nearsightedness, because they spend more time reading or working on computers. Another study showed that children who spend more time outdoors are less likely to become nearsighted.
But these findings don’t mean kids should be stopped from reading or working on the computer. Instead, Weber suggests, make sure a child’s environment is bright enough while they are doing close work. Parents should also help kids get into the habit of holding their reading material at the perfect distance – about 18 to 22 inches, he said. Finally, taking a break every five minutes or so, to let the eyes relax and focus on an object in the distance, will also help.
One of the most important things a parent can do to help head off eye disease and vision problems is to make sure their child gets regular eye exams, beginning early in life. “The majority of vision problems in children are preventable and treatable,” said Dr. Ida Chung.
1.What does the writer want to tell us in the passage?
A. It is important to keep your eyes healthy.
B. People seldom pay attention to eye health.
C. It is necessary to give your kids carrots.
D. All the eye disease are hereditary.
2.Which one is good for our eye health according to the third paragraph?
A. Spend more reading on computers.
B. Spend more time indoors.
C. Spend more time doing outdoor activities.
D. Spend more time working on computers.
3.The underlined part in the last paragraph means__________.
A. treat B. stop C. cover D. increase
4. Which can be the BEST title for this passage?
A. Eating carrots
B. Eye disease
C. How to keep eyes healthy
D. The importance of eye health.
九年级英语阅读理解困难题查看答案及解析
If I ask you to shut your eyes and gave you a piece of apple to eat, would you be able to tell me what it is just by tasting it? Of course, you could. Your tongue is covered with tiny “taste buds” which help you know what different foods taste like. Do you know that foods would taste different if you did not have a nose? This experiment shows how important your nose is when you taste things.
What You Need:
• a friend to help
• small pieces of any food like carrot, orange, banana
• small pieces of apple, raw(生的) potato, and onion
What You Do:
There are actually three different experiments. You and your friend should take turns to try them on each other.
Experiment 1:
Have your friend close her eyes and open her mouth.
Give her a piece of the food and ask her to taste it.
Then, ask her what she thinks it is. She will probably guess correctly.
Experiment 2:
While your friend has her eyes closed, give her a piece of the raw potato. At the same time, hold a piece of apple right under her nose. Ask her to eat the potato (but don’t call it by name) and tell you what she thinks it is. She will say it is a piece of apple!
Experiment 3: (for the brave)
Take a piece of raw onion. You don’t have to close your eyes this time. Squeeze your nose closed with your other hand so that no smells can get into your nose. Now take a nibble of the onion. Surprise! As long as you hold your nose, you will not be able to taste the onion.
The Science Secret
You already know the science secret. Your nose and your tongue work together to make food taste the way it does. Your tongue, however, can taste only certain flavors like salty, bitter, sour, and sweet. All of the other “tastes” are actually “smells,” and you need your nose to “taste” them. Oh, and you might use this science secret the next time you are told to eat something you don’t like the taste of. If you hold your nose while you eat it, you won’t “taste” it at all.
1.According to this article, what could a reader know about food?
A. People hold their noses to eat onions.
B. If you can smell potatoes, you will taste apples.
C. People need a sense of smell to taste some food.
D. If you close your eyes, food will taste better.
2.What is the most likely reason Experiment 3 is called “for the brave”?
A. You keep your eyes open. B. You have to eat a raw onion.
C. You have to squeeze your nose. D. You do the experiment alone.
3.What’s the best title of the passage?
A. Your Eyes Knows B. Your Nose Knows
C. Your Mouth Knows D. Your Tongue Knows
九年级英语阅读理解困难题查看答案及解析
If I ask you to shut your eyes and gave you a piece of apple to eat, would you be able to tell me what it is just by tasting it? Of course, you could. Your tongue is covered with tiny “taste buds” which help you know what different foods taste like. Do you know that foods would taste different if you did not have a nose? This experiment shows how important your nose is when you taste things.
What You Need:
• a friend to help
• small pieces of any food like carrot, orange, banana
• small pieces of apple, raw(生的) potato, and onion
What You Do:
There are actually three different experiments. You and your friend should take turns to try them on each other.
Experiment 1:
Have your friend close her eyes and open her mouth.
Give her a piece of the food and ask her to taste it.
Then, ask her what she thinks it is. She will probably guess correctly.
Experiment 2:
While your friend has her eyes closed, give her a piece of the raw potato. At the same time, hold a piece of apple right under her nose. Ask her to eat the potato (but don’t call it by name) and tell you what she thinks it is. She will say it is a piece of apple!
Experiment 3: (for the brave)
Take a piece of raw onion. You don’t have to close your eyes this time. Squeeze your nose closed with your other hand so that no smells can get into your nose. Now take a nibble of the onion. Surprise! As long as you hold your nose, you will not be able to taste the onion.
The Science Secret
You already know the science secret. Your nose and your tongue work together to make food taste the way it does. Your tongue, however, can taste only certain flavors like salty, bitter, sour, and sweet. All of the other “tastes” are actually “smells,” and you need your nose to “taste” them. Oh, and you might use this science secret the next time you are told to eat something you don’t like the taste of. If you hold your nose while you eat it, you won’t “taste” it at all.
1. According to this article, what could a reader know about food?
A. People hold their noses to eat onions. B. If you can smell potatoes, you will taste apples.
C. People need a sense of smell to taste some food. D. If you close your eyes, food will taste better.
2.What is the most likely reason Experiment 3 is called “for the brave”?
A. You keep your eyes open. B. You have to eat a raw onion.
C. You have to squeeze your nose. D. You do the experiment alone.
3.What’s the best title of the passage?
A. Your Eyes Knows B. Your Nose Knows
C. Your Mouth Knows D. Your Tongue Knows
九年级英语阅读理解中等难度题查看答案及解析
---Spend some time thinking about your strong points. If so, you will be able to build up confidence step by step and finally you’ll get first prize in the singing ________
---I really appreciate your encouragement. I’ll do as you told me.
A. communication
B. competition
C. composition
九年级英语单项填空中等难度题查看答案及解析
Saving money gives you freedom. If you have enough savings you may be able to give up your job. I know a couple (夫妻) who saved up 1 money that they were able to leave their 2 for a year, and travel across the country. You could see the wonderful experiences they had 3they were able to enjoy that time together.
Saving money is improving your 4 life. It is important to realize that 5 saving money now you will be able to do so many more things in your later years. You can retire early and spend time 6 around the world. By saving money now, you will be able to do as 7 things as you like and enjoy a good life.
Saving money will bring you peace of mind. Every dollar that you have in the bank is a dollar, which stands between you and disaster. People who have savings are not 8 when a car breaks down, or someone becomes sick. They know that they will be okay if they lose a job, and it takes time to find a new 9.
Saving money sets an example for your children. By teaching your children to save money and plan for the future, you are in control of where you spend your money, and what you do 10 it. It may be one of the most important ideas that you teach your children.
1. A.no B.little C.enough D.a little
2. A.jobs B.job C.country D.garden
3. A.so B.because C.or D.but
4. A.children’s B.whole C.future D.present
5. A.in B.on C.at D.by
6. A.travel B.traveling C.to travel D.travelled
7. A.many B.much C.more D.most
8. A.happy B.nice C.worried D.glad
9. A.ones B.another C.one D.other
10. A.by B.with C.in D.through
九年级英语完型填空中等难度题查看答案及解析
It’s your best subject, so you should be able to_____ the exam easily.
A.fail B.past C.take D.pass
九年级英语单选题中等难度题查看答案及解析
If your mother were here, she ______ allow you to surf the Internet for so long.
A. won’t B. doesn’t C. didn’t D. wouldn’t
九年级英语单项填空中等难度题查看答案及解析
Has anyone ever told you that eating carrots will help you see in the dark?
This is just one of many incorrect beliefs you may have heard. Below, we have picked out scientific explanations for three mistakes that people make about their eyes. Let's take a look.
Can eating carrots improve your eyesight?
Carrots are rich in vitamin A, which helps the eyes to turn light into information for your brain. This allows people to see in darker places.
However, eating more carrots won't help you see better. A certain minimum amount will help, but a large number of carrots will not give you superhuman vision.
If your parents have bad eyesight, will you have bad eyesight, too?
Myopia(近视)can be passed from parents to children.
A study by the American Optometric Association found that if both parents are myopic, there's a 33 to 60 percent chance that their child will be. For children who have one parent with myopia, the chance is 23 to 40 percent. and it's down to 6 to 15 percent for kids with non-myopic parents.
So if your eyesight is bad, your children might still have good vision.
Do color blind people see the world in black and white?
Color blindness doesn't usually mean that people see the world like an old movie. They usually can't tell certain colors apart, especially green and red. Another commonly confused pair of colors is yellow and blue.
Our eyes have cone cells (视锥细胞) that sense different wavelengths (波长) of light. If these cells don't work properly, color blindness occurs.
There are different levels of color blindness. Some people are only color blind in low light.
However, in the most serious form of color blindness, everything is shades of gray.
1.According to the article, eating carrots ________.
A.stops the brain from seeing
B.doesn't help you see better at all
C.will help you see clearly in the dark
D.is good for your eyes to some degree
2.If both parents have myopia, their child's chance of having good eyesight is ________.
A.40-67% B.33-60% C.23-40% D.6-15%
3.What is the cause of color blindness, according to the text?
A.Watching movies for too long.
B.Getting too little exercise.
C.Cone cells not working properly.
D.Changes in the wavelength of light.
4.Which statement is RIGHT?
A.You can have superhuman vision after eating a large number of carrots.
B.If your parents have bad eyesight. You might still have good vision.
C.Color blind people see the world in black and white.
D.It's unnecessary to protect our eyes.
5.What is the purpose of the article?
A.To offer some advice on protecting your eyes.
B.To clear up some misunderstandings about our eyes.
C.To provide help for improving your vision.
D.To explain how bad eyesight and color blindness form.
九年级英语阅读单选中等难度题查看答案及解析
Has anyone ever told you that eating carrots will help you see in the dark?This is just one of many incorrect beliefs you may have heard. Below, TEENS has picked out scientific explanations for three mistakes that people make about their eyes. Let’s take a look.
Can eating carrots improve your eyesight?
Carrots are rich in vitamin A, which helps the eyes to turn light into information for your brain. This allows people to see in darker places.However, eating more carrots won’t help you see better. A certain minimum amount will help, but a large number of carrots will not give you superhuman vision.
If your parents have bad eyesight, will you have bad eyesight, too?
Myopia(近视)can be passed from parents to children. A study by the American Optometric Association found that if both parents are myopic, there’s a 33 to 60 percent chance that their child will be. For children who have one parent with myopia, the chance is 23 to 40 percent, and it’s down to 6 to 15 percent for kids with non-myopic parents. So if your eyesight is bad, your children might still have good vision.
Do color blind people see the world in black and white?
Color blindness doesn’t usually mean that people see the world like an old movie. They usually can’t tell certain colors apart, especially green and red. Another commonly confused pair of colors is yellow and blue.Our eyes have cone cells(视锥细胞)that sense different wavelengths (波长)of light. If these cells don’t work properly, color blindness occurs.
There are different levels of color blindness. Some people are only color blind in low light.
However, in the most serious form of color blindness, everything is shades of gray.
1.Which can help the eyes to turn light into information for the brain?
A.vitamin A B.vitamin B C.vitamin C D.vitamin D
2.According to the article, eating carrots_____.
A.stops the brain from seeing
B.doesn’t help you see better at all
C.will give you superhuman vision.
D.is good for your eyes to some degree
3.If both parents have myopia, their child’s chance of having good eyesight is_____.
A.40-67% B.33-60% C.23-40% D.6-15%
4.What is the cause of color blindness, according to the text?
A.Watching movies for too long.
B.Getting too little exercise.
C.Cone cells not working properly.
D.Changes in the wavelength of light.
5.What is the purpose of the article?
A.To offer some advice on protecting your eyes.
B.To clear up some misunderstandings about our eyes.
C.To provide help for improving your vision.
D.To explain how bad eyesight and color blindness form.
九年级英语阅读单选中等难度题查看答案及解析
The doctor told us to eat more fruits ________ meals. So my mother bought me some apples.
A.in B.among C.over D.between
九年级英语单选题中等难度题查看答案及解析