Biting could be worryingIT makes our fingers ...

Biting could be worrying

IT makes our fingers look ugly. It’s dirty. It could hurt a lot. But many people just can’t stop doing it: biting their nails.

Up to 45 percent of teenagers in the UK bite their nails, the BBC reported. There are also many famous nail biters, including ex-British Prime Minister Gordon Brown and American singer Britney Spears.

There’s nothing wrong with biting nails to keep them tidy. But it could get out of control.

Some people bite a nail not because it’s too long, but because they are driving, reading, feeling stressed out, or just have nothing else to do.

The same could happen to skin picking and hair pulling. A normal behavior could become “pathological”(病态的), as experts say.

In 2013, the American Psychiatric Association labeled (把……列为) nail biting as an obsessive-compulsive disorder (OCD). People with this disorder may wash their hands too many times or have to line up their shoes in a certain way.

These behaviors have a lot in common. OCD is doing something normal and healthy too much, NPR reported.

But nail biting is different from other OCD behaviors in at least one way.

“In OCD, the behavior is really unwanted,” Carol Mathews, a psychiatrist（精神病医生）at the University of California, San Francisco, told NPR. People with OCD don’t want to wash their hands over and over again. There is no fun in it. They just fear that if they don’t do something, something else that’s very bad will happen to them.

But nail biters enjoy it.

“It’s rewarding. When you get the right nail, it feels good,” said Mathews.

Therefore some people argue that most nail biters are not having a problem as serious as a mental (心理的) disorder.

But anyway, it’s still a bad habit. So what can we do to stop it?

Since most people bite nails as a way of relieving (缓解) stress, finding another way to relieve that stress could be useful, suggested Rochelle Torgerson, a doctor at the Mayo Clinic in the US. Try playing with your pen instead.

Besides, nail biters feel the urge (刺激，冲动) to bite if they find a small imperfect part of the nail, said Mathews. So always keep your nails in good shape.

1.What does the phrase obsessive-compulsive disorder in Paragraph 6 mean?

A. An activity that people enjoy doing it.

B. A kind of behavior that people is really wanted.

C. A way of doing something that people does it normal and healthy.

D. A mental disorder that people are unable to control the thoughts or the activities.

2.How is nail biting different from other OCD behaviors?

A. People do it over and over again.

B. People do it happily and willingly.

C. It does no harm to people’s health.

D. It is a physical and mental problem.

3.What do doctors suggest people do to stop nail biting?

A. Pick skin or pull hair instead.

B. Force them to control the urge to bite.

C. Keep them busy and forget about nails.

D. Find some other ways to release their stress.

九年级英语阅读理解中等难度题查看答案及解析

look like, heart, make, a, fingers, shape, your（.）

___________________________________________________

九年级英语将所给单词连成句子中等难度题查看答案及解析

1. If the only sports you do are dancing your fingers across your keyboard, you could be in serious danger of more than just becoming fat!

Do you feel sleepy, like something is weighing down on your head? Do you feel forgetful? Do you sometimes feel uncomfortable up and down your neck and lower back, and you can’t explain why? Do you get sick often? It could be radiation(辐射) from your computer causing it. If you spend three hours or more a day in front of a computer, (and at this point, who doesn’t?) you are more easily harmed by these hazards(危害).

2.We have got so used to using computers that we don’t often think of them as dangerous sources(来源) of harmful(有害的) radiation. A safe amount radiation is 25 V/m(Volts/meter). Do you want to guess how much our personal computers give off?

★ Keyboard: 1000 V/m        ★Mouse: 450V/m        ★Monitor: 218 V/m

★CPU: 170V/m            ★Notebook computers: 2,500 V/m

Ways to Protect Yourself from Harmful Computer Radiation:

1. Decorate your desk with cactus(仙人掌) plants, they take in radiation.

2. Drink two to three cups of green tea a day and eat an orange daily. The vitamins in tea leaves and oranges protect us from radiation and keep our eyes healthy as well.

3. Use a screen filter(过滤器) for your monitor.

4. Avoid having metal objects nearby on your desk.

5. Put the back of the computer to the wall. Most of the radiation comes off the back.

6. Keep your monitor at least 50cm away from your face.

7. Keep your computer rooms ventilated(空气流通的).

8. Eat healthily—especially fruits and vegetables.

9. Don’t fall asleep on your computer. Turn it off if you have to rest nearby.

The ways above are useful, why not have a try at once?

A. 根据短文内容简要回答问题。

3.Which is safer, using a desk computer or a notebook computer?

________________________________________________________________

4.Which of the nine ways mentions diets?

_________________________________________________________________

B. 将短文中划线的句子译成汉语。

5.. _______________________________________________________________

6.______________________________________________________________

C. 请给短文拟一个适当的标题。

7. ________________________________________________________

九年级英语其他题极难题查看答案及解析

If the only sports you do are dancing your fingers across your keyboard, you could be in serious danger of more than just becoming overweight and out of shape.

Do you often feel sleepy, like something is weighing down on your head? Do you feel forgetful? Do you sometimes feel uncomfortable up and down your neck and lower back, and you can’t explain why? Do you get sick often? It could be radiation (辐射) from your computer causing it. If you spend three hours or more a day in front of a computer (and at this point, who doesn’t?), you are more easily harmed by the hazards.

We have got so used to using computers that we often neglect (忽视) to think of them as dangerous sources of harmful radiation. A safe amount of radiation is 25 V/m (Volts/meter). Do you want to guess how much our personal computers give off?

Keyboard: 1000 V/m

Mouse: 450 V/m

Monitor: 218V/m

CPU: 170V/m

Notebook computers: 2,500 V/m

Ways of Protect Yourself from Harmful Computer Radiation

1. Decorate your desk with cactus (仙人掌) plants, they take in radiation.

2. Drink two to three cups of green tea a day and eat an orange daily. The vitamins in tea leaves and oranges protect us from radiation and keep our eyes healthy as well.

3. Use a screen filter（滤色镜） for your monitor.

4. Avoid having metal objects (金属物体) nearby on your desk.

5. Put the back of the computer to the wall. Most of the radiation comes off the back.

6. Keep your monitor at least 50cm away from your face.

7. Keep your computer rooms ventilated (空气流通的).

8. Eat healthily-----especially fruits and vegetables.

9. Don’t fall asleep on your computer. Turn it off if you have to rest nearby.

The ways above are useful, why not have a try at once?

1.Sitting to close to your computer for too long can cause 　　　　　　　　　　　　　　 .

A. your fingers to turn blue

B. radiation sickness

C. your parents to think you’re smart

D. your games scores to go down

2.The underlined word “hazards” in paragraph 2 means 　　　　　　　　　　　　　　 .

A. illness B. feelings C. danger D. headache

3.How can you avoid the affects (影响) of radiation?

A. Spend less time at your computer.

B. Use plastic to cover your screen.

C. Type in a dark room.

D. Have your cat do your homework for you.

4.Which of the following is NOT true according to the passage?

A. Cactus plants take in harmful radiation.

B. Eating healthily helps you stay well.

C. You should fall asleep at your computer daily.

D. A well ventilated room is good prevention.

5.The best title of the passage is 　　　　　　　　　　　　　　 .

A. Computer problems

B. Computer radiation: a silent killer

C. Protect yourself

D. Harmful radiation

九年级英语阅读理解中等难度题查看答案及解析

If the only sports you do are dancing your fingers across your keyboard, you could be in serious danger of more than just becoming overweight and out of shape.

Do you often feel sleepy, like something is weighing down on your head? Do you feel forgetful? Do you sometimes feel uncomfortable up and down your neck and lower back, and you can’t explain why? Do you get sick often? It could be radiation(辐射) from your computer causing it. If you spend three hours or more a day in front of a computer, you are more easily harmful by the hazard(危险).

We have got so used to using computers that we often neglect(忽略) to think of them as dangerous sources of harmful radiation. A safe amount of radiation is 25V/m(Volts/meter). Do　 you want to guess how much our personal computers give off?

Keyboard： 1000 V/m

Mouse： 450 V/m

Monitor： 218 V/m

CPU： 170 V/m

Notebook computers： 2,500 V/m

Ways to Protect Yourself from Harmful Computer Radiation

1. Decorate your desk with cactus(仙人掌) plants, they take in radiation.

2. Drink two or three cups of green tea a day and eat an orange daily. The vitamins in tea leaves and oranges protect us from radiation and keep our eyes healthy as well.

3. Use a screen filter(过滤器) for your monitor.

4. Avoid having metal objects nearby on your desk.

5. Put the back of the computer to the wall. Most of the radiation comes off the back.

6. Keep your monitor at least 50 cm away from your face.

7. Keep your computer rooms ventilated(空气流通的).

8. Eat healthily---especially fruits and vegetables.

9. Don’t fall asleep on your computer. Turn it off if you have to rest nearby.

The ways above are useful, why not have a try at once?

九年级英语阅读理解困难题查看答案及解析

They were________their invention．They thought they could invent more things to make our life easier．

A．angry with

B．proud of

C．strict in

D．tired of

九年级英语单项填空中等难度题查看答案及解析

Do you know why people look the way they look? What inside our bodies makes us grow in a certain way? The answer is DNA. It was first discovered by a young Swiss doctor in 1868.

DNA is like a computer program for your body. Almost every cell(细胞) in your body includes DNA. The way DNA in the cell decides why you are the way you are. For example your friend might have larger ears than you. This is because their DNA is different from yours.

DNA lives in the cell and is ordered in a structure called a “double helix(双螺旋)”. In each double helix there are links called as chromosomes(染色体). These chromosomes are made from four bases that arrange themselves in millions of different ways. The way these bases choose to line up is what makes the DNA code for that cell.

DNA is also called a “gene(基因)”. This is a very interesting thing. Genes are passed down from your parents. That is why you might have the same smile like your dad’s or mom’s!

In February, scientists found the skeleton(骨架) of Richard III, King of England from 1483-1485, under a car park in England. It seems unlikely that scientists could identify a 527-year-old skeleton. However, they matched the skeleton’s DNA to a sample from one of his direct descendants(后代). How amazing!

1. _______ discovered DNA.

A. A Swiss scientist　　　　　　　　　　 B. A Swiss doctor

C. A young student　　　　　　　　　　　 D. A Swiss worker

2. Which of the following is Wrong?

A. DNA is a part of the cell.

B. Different people have different DNA.

C. The chromosomes are made up of four bases.

D. Scientists could not identify a 527-year-old skeleton.

3. What is the main function of “genes”?

A. They decide your children’s appearances or characters.

B. They make your children have the same smile as you.

C. They make your children stay healthy.

D. They’re good for scientific researches.

4.What’s the main idea of this passage?

A. What decides DNA.　　　　　　　　 B. How DNA is arranged.

C. What genes are like.　　　　　　 D. How DNA works in our body.

九年级英语阅读理解中等难度题查看答案及解析

We all want our skin (皮肤) to look good. If our skin is clear and healthy, it makes you feel better about yourself. How do you get great skin? Here are some suggestions.

Protect your skin against the sun.

If you are going to be outside, especially in the sun, you should put on sun cream (防晒霜) in summer.

Wear a hat to protect your face. A wide hat is the best, as it will protect your ears and neck as well.

Stay in the shade whenever you can.

Use sun cream about half an hour before going outside.

How to wash your skin?

Wash your body all over once a day. Use mild soap (肥皂) and warm water to wash your body.

Wash the soap off, as it may harm your skin.

Wash your face by using a facecloth and soap or cleaning cream, and then wash with cool water. Twice a day is enough, as too much cleaning can harm your skin.

What else should you do?

Remember to drink lots of water—your skin loves it.

Regular exercise is good for your skin.

Eat healthily so that your skin can get things it needs to carry out all the jobs it has to do.

1.Which way is NOT Right to protect your skin if you are outside?

A.Using your sun cream. B.Wearing a wide hat.

C.Staying in the sun. D.Staying in the shade.

2.You can use ________ water to wash your body.

A.cool B.warm C.hot D.cold

3.What does the underlined word “facecloth” mean?

A.手绢 B.毛巾 C.抹布 D.口罩

4.What can’t you do to protect your skin in your daily life?

A.Drink plenty of water. B.Do exercise regularly.

C.Eat healthy food. D.Wash your body all over as many times as possible.

5.What’s the best title of the passage?

A.Caring for your skin B.How to keep healthy

C.How to wash your skin D.Why we try to protect our skin

九年级英语阅读单选中等难度题查看答案及解析

—Hi .Jack! Could you come to our English party?

—Sorry， I 　 _　 . I have to look after my little sister at home.

A. must　 B. could　 C. can't

九年级英语单项填空简单题查看答案及解析

Inventors are always looking for ways to make our lives easier, greener and more fun. Here are just a few examples of inventions.

                                                 Crayons were invented by Edwin Binney and C. Harold Smith. They had a paint company in New York City. The new crayons were made of wax（蜡）and different pigments（颜料）. In 1903,Binney and Smith put the first box of eight“Crayola Crayons”on the market. These new crayons were a great success.

                                Remote control technology(遥控技术)has been used since the early 1930s. During World War1, Germans used remote control boats. The TV remote control was first put on the market in 1950. Zenith Radio Company created the first TV remote control, called the “lazy Bone”. It could turn the TV on and off and could change programs.

       Bow Lingual（犬语翻译机），named by the US

Time Magazine as a “BEST invention of 2002”，

has two parts. A microphone is tied to the dog’s neck and sends out sound information to the gadget（小挂件）held by the owner. Then the translation is done in the gadget with kinds of dog barks.

          Some students in South Korea have a new language teacher :an robot of English-teaching ：The robot is 157cm tall and speaks both Korea and English .It can make16 kinds of faces .The robot-teachers are helping to solve a shortage of English teachers there. Could robots replace human teachers one day?

1. The first box of crayons was put on the market ________ .

A. in 1900  B. in 1903  C. in 1950   D. in 2002

2.During World War1, Germans used remote control to control _________ .

A. trains    B. planes   C. boats    D. TVs

3._________ is one of the greatest inventions of 2002 according to the US Time Magazine.

A. The crayon                B. Bow Lingual

C. The TV remote control   D. The English- teaching robot

4. The English- teaching robot can speak ________ .

A. English and Chinese     B. English and French

C. Korean and Japanese    D. English and Korean

5.Which of the following is TRUE?

A.Bow Lingual’s microphone is tied to the dog’s neck.

B. The English-teaching robot can make six faces in class.

C. Remote control technology has been used since early 1930.

D. The robot- teachers can help provide the USA with more English teachers.

九年级英语阅读理解中等难度题查看答案及解析