Nail biting is a common habit. A lot of people tend to bite their finger nails when nervous and anxious. It is a good way to reduce their stress. However, nail biting affects 30 percent of adults, 45 percent of teens and 30 percent of children. It can invite bacteria to enter the body and the blood, increasing your chances of catching a cold or the flu, according to the Mayo Clinic. Not to mention that it can ruin your smile.
The most common virus hiding under your nails is staphylococcus, which can enter the body through breaks in your skin after you bite your nails. If that is not enough a warning, just imagine parasites, hanging out in your nail tissue as you open mouth and put in your finger. So next time the anxiety comes in, try taking five deep breaths instead.
According to the Center for Disease Control, there are more than 200 cold viruses floating around at any given time. You may get one because of exposure to the sick. However, you can reduce your chances of catching a virus by keeping your hands away from your mouth. Viruses that cause the cold are active on your skin as well, so often wash your hands with soap and water, and avoid nail biting by chewing gum.
Nail biting can also damage the teeth. Check with your dentist whether having a mouth guard can help you to stop biting your nails or at least reduce some of the damage it can cause. She may be able to suggest some other ways to help you give up the habit for good.
1. Who is most likely to be affected by nail biting?| A．The 16-year-old Bob. | B．The second grader Gene. |
| C．The seven-month-old Jane. | D．The mother of five children, Kate. |
| A．You should be careful of the nail. | B．Nail biting harms your health a lot. |
| C．Deep breaths are useful to keep calm. | D．People lack warnings about biting nails. |
| A．Avoiding chewing gum. | B．Washing your face often. |
| C．Going to a dentist often. | D．Staying away from the sick. |
| A．Nail Biting Is a Common Habit | B．Nail Biting Can Reduce Stress Well |
| C．Nail Biting Ruins Your Health and Smile | D．Nail Biting Should Be Checked with a Dentist |
相似题推荐
【推荐1】Migraine is a disease that has a number of symptoms (症状), including head pain that can stick around from four hours to several days. While migraines can happen partly because of genetic (基因的) problems, attacks may happen by chance, set off by a cause in the environment.
One common cause is food, and some common dietary causes include alcohol, salt, sugar, chocolate, and caffeine. But there are many others, and scientists continue to identify more. Last year, for example, a Brazilian study found that watermelons brought on a headache within minutes in about 30 percent of the participants.
Some new researches are looking at which foods and what kinds of diets can prevent or lessen migraines. A new study published last year by a team of researchers found that a diet higher in fish oils rather than vegetable oils helped people ease their headaches. In the study, those on a diet lower in vegetable oil and higher in fatty fish had a 30 to 40 percent reduction in total headache hours per day, serious headache hours per day, and overall headache days per month compared to the control group.
Tanya Kamka had suffered weekly migraines for most of her life. Then, in her 50s, she joined the NIH diet experiment and increased her intake of fish. After only a few months, “I haven’t had a migraine, not even a mild one, in over two years.” she says.
For others, the solution comes from plants, not fish. A 60-year-old man joined a study on the food-migraine link and turned to a diet, which includes a lot of dark, leafy greens. After two months he was experiencing only one migraine a month instead of the 18 to 24 a month he’d suffered before.
Clearly, people with migraines react to food in very different ways. What works for one person may not work for another.
1. What do we know about migraine from paragraph 1?| A．It is related to sleep time. | B．It never runs in the family. |
| C．It lasts for at least three hours. | D．It can be caused by the environment. |
| A．The length of migraine. | B．Foods that lead to migraine. |
| C．The most common cause of migraine. | D．A Brazilian study about migraine. |
| A．Fish oils. | B．Vegetable oils. |
| C．All kinds of fat. | D．Various Vegetables. |
| A．It varies from person to person. | B．It can only stay for a short time. |
| C．It depends on the age of a patient. | D．It is connected to how much one takes. |
【推荐2】Researchers have long been stumped(难住)by whether eating fish reduces the risk of developing type 2 diabetes. Some studies have shown that it does, while others have found no effect or concluded that it tends to increase the risk.
A Chalmers University of Technology study may explain the contradictory(矛盾的)results. The study compared blood samples and diet questionnaires from 842 participants, half of whom developed type 2 diabetes after about seven years. This showed that fish consumption as a whole has no effect on diabetes risk. Then, using a new data-analysis method, said one of the study author. "We screened(筛查)out the effect of environmental pollutants. We were then able to see that fish itself provides clear protection against type 2 diabetes.
However, participants who ate a lot of fatty fish, such as salmon, also had high levels of environmental pollutants in their blood. These fish are the most likely to contain accumulated pollutants such as DDT and PCB, which have both previously been linked to increased risk of type 2 diabetes.
To make sure the fish you eat is free from pollutants, check the Environmental Defense Fund's Seafood Selector(seafood edf.org) for the choices least likely to contain them, then look for wild-caught fish from sustainable sources, such as those certified by Marine Stewardship Council.
1. Which of the following about fish consumption is true according to the passage?| A．It reduces the risk of developing diabetes. |
| B．It is good for diabetes only if unpolluted. |
| C．It increases the risk of developing diabetes. |
| D．Different people have different opinions on fish consumption. |
| A．making comparisons and doing experiments |
| B．providing an example and analyzing data |
| C．referring to another study and doing experiments |
| D．making comparisons and analyzing data |
| A．a newspaper | B．a novel | C．a medical journal | D．a science magazine |
【推荐3】Reading Your Medicine Label
Each time you take over-the-counter(OTC) medicine or a prescription (处方), take time to read your medicine label. Learn about the elements of OTC medicine labels, including uses, warnings, conditions and directions.
Uses
Temporarily relieves minor aches and pains due to: the common cold, headache, backache, minor pain of arthritis (关节炎), toothache.
Warnings
Liver warning: This product contains acetaminophen. Severe liver damage may occur if you take:
●more than 4,000 mg of acetaminophen in 24 hours
●with other drugs containing acetaminophen
●3 or more alcoholic drinks every day while using this product
Allergy alert: acetaminophen may cause severe skin reactions. Symptoms may include:
●skin reddening
●blisters
●rash
If a skin reaction occurs, stop use and seek medical help right away.
Conditions
Stop use and ask a doctor if:
●pain gets worse or lasts more than 10 days
●fever gets worse or lasts more than 3 days
●new symptoms occur
These could be signs of a serious condition.
Directions
Adults and children 12 years and over: take 2 caplets every 4 to 6 hours while symptoms last, and do not take more than 12 caplets in 24 hours, unless:
●directed by a doctor
●do not use for more than 10 days unless directed by a doctor
Children under 12 years: ask a doctor.
1. What’s the medicine mainly used to?| A．Kill the pains. | B．Stop the allergy. |
| C．Treat common cold. | D．Reduce the swelling. |
| A．Your fever lasts 48 hours. | B．Your skin becomes full of redness. |
| C．You feel more painful than before. | D．You find new symptoms appear. |
| A．Over 10 days. | B．Less than 10 days. |
| C．Only 3 days. | D．At most 24 hours. |
【推荐1】Services covered by Healthy Smiles Ontario
Healthy Smiles Ontario is a free dental program for children and youth 17 and under. Good oral health is important to the overall health of children and youth. It’s very important to start seeing a dentist when your child is 12 months old and to keep going regularly. Healthy Smiles Ontario covers regular check-ups, preventive care and treatment. With Healthy Smiles Ontario you can prevent oral health problems before they start!
Getting registered
Who is eligible (符合条件）
Children and youth 17 and under may be eligible if：
They are residents (居民)of Ontario； and they are members of a household that meets the income eligibility requirements.
How long is a client (当事人）eligible for service
Up to one benefit year (August 1st to July 31st) , or 12 months from the date of registration or up to their 18th birthday.
How to apply
Visit Ontario, ca/healthysmiles or visit your local Public Health Unit.
If you have any questions f please call the ServiceOntario INFOline toll-free at：
ServiceOntario toll-free： 1-844-296-6306
ServiceOntario TTY toll-free： 1-800-387-5559 416-327-4282 (TTY Toronto only)
Once a child’s registration has been confirmed, they will receive a Healthy Smiles Ontario dental card. The dental card must be presented to a dental provider at each visit to receive dental care under the Program.
Who may apply online
To apply online you will have to：
Enter your Social Insurance Number
Sign and mail a completed Consent Form within 30 days of submitting an online Application.
1. What can Healthy Smiles Ontario program offer?| A．Overall physical examination. | B．Prevention of dental disease. |
| C．Regular check-up for babies. | D．Life-long free oral treatment. |
| A．0-12. | B．1-12. |
| C．0-18. | D．1-17. |
| A．Apply online. | B．Make an appointment. |
| C．Present the dental card. | D．Enter Social Insurance Number. |
第一节阅读理解（共15小题；
阅读下列短文，从每题所给的A、B、C和D项中，选出最佳选项，并在答题卡上将该项涂黑。
A
Good health is the most valuable thing a person can have, but one cannot take good health for granted. It is important to remember that the body needs proper care in order to be healthy. There are three things that a person can do to help stay in good shape: eat right food, get enough sleep, and exercise regularly.
Proper nutrition (营养) is important for good health. Your body cannot work well unless it receives the proper kind of “fuel”. Don't eat too much food with lots of sugar and fat. Eat plenty of foods high in protein (蛋白质) , like meat, fish, eggs and nuts. Vegetables and fruits are very important because they provide necessary vitamins (维他命) and minerals. However, don't overeat. It is not helpful to be overweight.
Getting the proper amount of sleep is also important. If you don't get enough sleep, you feel tired and easily get angry. You have no energy. Over a long period of time a little amount of sleep may even result in a change of personality. Be sure to allow yourself from seven to nine hours of sleep each night. If you do, your body will feel strong and refreshed, and your mind will be sharp.
Finally, get plenty of exercise. Exercise firms the body, strengthens the muscles, and prevents you from gaining weight. It also improves your heart and lungs. If you follow a regular exercise program, you will probably increase your life-span (寿命).Any kind of exercise is good. Most sports are excellent for keeping the body in good shapes: basketball, swimming, bicycling, running and so on are good examples. Sports are not only good for your body, but they are enjoyable and interesting, too.
If everybody were to eat the right foods, get plenty of sleep and exercise regularly, the world would be a happier and healthier place. We would all live to be much older and wiser.
1. According to the passage,_________.
| A．if we were healthy, we could spend our days in doing things with less sleep |
| B．one can eat a lot to stay in good shape |
| C．one needn't take any exercise if he is healthy |
| D．we should always keep fit |
| A．we should eat a lot of sweets |
| B．one needs a large amount of fat |
| C．people should eat according to the foods nutrition |
| D．we must try to sleep now and then |
| A．can keep healthy | B．is no good for you |
| C．gets you more energy | D．will keep your personality |
| A．how to eat | B．the importance of doing exercise |
| C．how to keep healthy | D．what to eat |
| A．Eating and Exercising | B．How Vitamins Work in Man's Body |
| C．Staying Healthy | D．Sleeping Well |
【推荐3】When you need to see a doctor, surely you will want to see a good one. But there is one important thing you may never have thought about: Has your doctor rested enough?
Doctors in our country often have to work 34 hours or longer without sleep. Most of them work 104 hours a week, and some even 150. (There are only 168 hours a week!) One report said that a doctor who works such long hours cannot think more clearly than a drunk driver. Another found that doctors who sleep 5.8 fewer hours than the week before might make 22% more serious mistakes. Surely no one wants to get in a car that is driven by a drunk driver. So, how safe would you feel when you are under the care of a tired doctor?
Sadly this problem has been around for a long time. There are no laws about it yet and hospital bosses don’t look like they care either. And that is why we doctors are asking you to join us on the street this Sunday. Fight together with us on the street so we can fight better for your life in the hospital.
Time: 1 p. m. July 15 Place: City Hospital Square
1. How long do doctors often have to work per week in the country?| A．34 hours. | B．104 hours. |
| C．150 hours. | D．168 hours. |
| A．A country. | B．A doctor. |
| C．A report. | D．A driver. |
| A．To find out who can think more clearly. |
| B．To give an example of a common disease. |
| C．To show who can work longer without sleep. |
| D．To give the reader a clear idea of the danger. |
| A．To warn doctors not to work too long. |
| B．To get support for the fight for doctors. |
| C．To tell people how to find a good doctor. |
| D．To call for a law against drunk driving. |
【推荐1】Most teanagers feel that the most importannt people in their lives are their friends.They believe their family members ,and in particular their parents ,don’t know them as well as their friends do.
In large families ,it is quite often for sisters and brothers to fight aganist and then they can only go to their friends for advice.
It is very important for teenagers to have a good friend or a circle of friends .Even when they are not together with their friends ,they usually spend a lot of time talking among themselves on the phone .This communication is very important in children’s growing up,because friends can discuss something that’s difficult to talk with their family members.
However ,parents often try to choose friends for thir children .Even some parents stop their children from meeting their good friends.
Who choose your friends ?
Have you got a good friend your parents don’t like?
Have you ever thought of these questions?
1. Many teenagers think their _______ know them better than their parents do.| A．friends | B．teachers | C．brothers and sisters | D．family members |
| A．to see their teachers |
| B．to talk with their parents |
| C．to have adiscussion with their family on the phone |
| D．to talk with their friends on the phone |
| A．Parents should like everything that their children lik |
| B．In every family children can’t choose everything they like. |
| C．Teenagers should not go to their friends for help. |
| D．Parents should try to understand their children better. |
| A．you are welcome to have a discussion with us. |
| B．we’ve got no idea,so youe answer is welcome. |
| C．your answers are always corret. |
| D．you can give us the right answers. |
| A．be strict with their children |
| B．take place of their children’s friends. |
| C．not allow their children to go out with their friends |
| D．talk more with their children and understand them better |
【推荐2】Four of the Oldest Buildings in the World
Knap of Howar
One of the oldest buildings in the world is the Knap of Howar, which dates back to 3700-3500 BCE.The farmhouse is one of the oldest, still-standing stone houses in Europe. It includes two stone homes linked through a hidden passage and joint walls. Archaeologists say Irish or Scottish monks could be the first builders and residents of the Knap of Howar. Although the house is still standing, these abandoned places around the world are better candidates for restoration.
Ġgantija Temples
The Megalithic Temples of Malta, or the Ġgantija Temples, date back to 3600 to 3200 BCE. The two temples on the island of Malta are UNESCO World Heritage sites. It’s one of the oldest free-standing monuments in the world. Archaeologists think the temple was used for ritual animal sacrifices.
Shunet el-Zebib
Shunet el-Zebib is partially standing, but mostly in ruins. It’s still, however, one of the oldest buildings in the world. The Egyptian temple built in 2750 BCE is of mud and brick. It has an underground tomb as well as an above-ground complex. Architecturally, it’s a nod to the Egyptian pyramids soon to come.
Tomb of Cyrus
Built in 530 BCE, the Tomb of Cyrus is one of Iran’s World Heritage Sites and one of the oldest buildings on the planet. It’s also believed to be one of the first earthquake-protected structures in the world, according to Atlas Obscura. The base isolating used on the tomb protects the main structure from moving apart from the foundation.
1. What do the four buildings have in common?| A．All of them are located in Europe. |
| B．All of them are made of stone and mud. |
| C．All of them are UNESCO World Heritage Sites. |
| D．All of them were built before the birth of Christ. |
| A．Knap of Howar. | B．Ġgantija Temples. |
| C．Shunet el-Zebib. | D．Tomb of Cyrus. |
| A．Shunet el-Zebib is earthquake protected. |
| B．Tomb of Cyrus has an underground tomb. |
| C．Ġgantija Temples are built by Irish monks. |
| D．Knap of Howar may be the oldest building among the four. |
【推荐3】The following "green" hotels from across the world offer guests an eco-friendly and world-class holiday experience.
Hi Hotel, Nice, France
Offering a private beach and rooftop pool, the Hi Hotel Eco Spa Beach has received Green Globe certification for using recycled paper, organic(有机的)paint, eco-friendly cleaning products and organic food.
Garonga Safari Camp, Phalaborwa, South Africa
A high-class 12-bed camp in South Africa, the hotel supports the local community. Locals are offered employment opportunities, with potential for career development, while food and goods are sourced locally where possible. Additionally, guests are invited to offset their carbon footprint by helping with the planting and growing of Spesbok Trees in the Eastern Cape.
Park Hyatt Maldives Hadahaa, Maldives
Park Hyatt Maldives Hadahaa combines environment and modern design to offer guests the luxurious experience. Various parts of the hotel are built over the water in the Indian Ocean in order to reduce interference(干扰)with the natural environment.
The Park Hyderabad, Hyderabad, India
Located within a 10-minute car ride from the centre of Hyderabad. The Park Hyderaba's exterior(外部)makes full use of natural light, reducing the need for electricity. Green transportation, bikes and electric cars, is encouraged.
Spice Island Beach Resort, St. George's，Grenada
Owned and run by Sir Royston Hopkin and his family, Spice Island Beach Resort is a luxurious destination for guests hoping to bathe in the natural beauty of the Isle of Spice. It uses solar heating and all forms of energy conservation. Smoking of any kind is forbidden in the areas or the hotel.
1. What's special about Hi Hotel?| A．It puts a ban on cars. |
| B．It provides green food. |
| C．It encourages guests to plant trees. |
| D．It offers employment opportunities to the locals. |
| A．It is partly built over the sea. | B．It has simply-decorated rooms. |
| C．It makes full use of natural light. | D．It uses eco-friendly cleaning products. |
| A．Hi Hotel. | B．The Park Hyderabad. |
| C．Garonga Safari Camp. | D．Spice Island Beach Resort. |
