Bad teeth can be painful and even be deadly. Infections of the gums(牙齦) and teeth can release bacteria into the blood system. Those bacteria can increase the chance of a heart attack or stroke and worsen the effects of other diseases. And adults are not the only ones at risk. For example, a 12­year­old boy died when a tooth infection spread to his brain in 2007 in Washington. Experts said it might have been prevented had he received the dental care he needed.
Experts say good dental care starts at birth. Breast milk, they say, is the best food for the healthy development of teeth. Breast milk can help slow bacterial growth and acid production in the mouth. But dentists say a baby's gums and early teeth should be cleaned after each feeding by using a cloth with a little warm water. Experts say if you decide to put your baby to sleep with a bottle, give only water.
When baby teeth begin to appear, you can clean them with a wet toothbrush. Dentists say it is important to find soft toothbrushes made especially for babies and to use them very gently. The use of fluoride(氟化物) to protect teeth is common in many parts of the world. For example, it is often added to drinking water supplies. The fluoride mixes with enamel(釉質(zhì)), the hard surface on teeth, to help prevent holes from forming.
But young children often swallow toothpaste when they brush their teeth. The American Academy of Pediatric Dentistry notes that swallowing fluoridated toothpaste can cause problems. So young children should be carefully watched when they brush their teeth. And only a small amount of fluoridated toothpaste, the size of a pea, should be used.
Parents often wonder what effect finger sucking might have on their baby's teeth. Dental experts generally agree that this is fine early in life. Most children stop sucking their fingers by the age of four. If it continues, experts advise parents to talk to their children's dentists or doctors. Because it could interfere_with the correct development of permanent teeth.
Dentists say children should have their first dental visit at least by the time they are one year old. They say babies should be examined when their first teeth appear—usually at around six months.
【小題1】According to the passage，what is the function of fluoride?

A．Making the surface on teeth much cleaner.
B．Protecting gums from being infected.
C．Keeping holes on teeth from forming.
D．Slowing down bacterial growth and acid production.
【小題2】The underlined phrase “interfere with” in Para.5 probably means “________”．
A．do harm to B．a(chǎn)ccount for
C．contribute to D．stand for
【小題3】What is the purpose of the author in writing the passage?
A．To warn us of the deadly infections of gums and teeth.
B．To introduce the advantages of fluoridated toothpaste.
C．To draw our attention to the dental care of young children.
D．To present the research results about dental care.


【小題1】C
【小題2】A
【小題3】C

解析【小題1】答案：C　細(xì)節(jié)理解題。根據(jù)第三段最后一句“The fluoride mixes with enamel(釉質(zhì))，the hard surface on teeth，to help prevent holes from forming.”可知，答案為C項(xiàng)。
【小題2】答案：A　詞義猜測(cè)題。根據(jù)上文中“大多數(shù)孩子到四歲就不吮吸手指了。但如果繼續(xù)的話，專家建議父母要去和孩子的牙醫(yī)或兒科醫(yī)生談一談”，以及該短語(yǔ)所在句的內(nèi)容可推知，do harm to“損害”與該短語(yǔ)的意思最為接近。
【小題3】答案：C　推理判斷題。根據(jù)最后一段的內(nèi)容可推知作者寫這篇文章旨在提醒父母要關(guān)注小孩子的牙齒健康。故選C項(xiàng)。
疑難詞匯解讀
1．bacteria n．細(xì)菌
bacterial contamination細(xì)菌感染
2．suck vt.吮吸，嘬
suck milk through a straw用吸管吸牛奶喝

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科目：高中英語(yǔ) 來源： 題型：閱讀理解


Group Tours of the Area of the 2012 Sites
These are recommended tours for groups. Individual visitors wishing to join please click here.
East London and the Olympic Park Tour
From Central London, travel through London’s East End — recently fashionable, multicultural residential areas, and once famous for market gardens, fine churches, and shipping-related industries. Hear a little of the dark side with stories of Jack-the-Ripper and street gangs.
Now into the 21st century, you arrive at the Olympic Park, already under construction. Imagine the 80,000-seat Main Stadium, the Multi-Sports Arena, Aquatics Centre, Velodrome, Olympic Village, Broadcasting & Media Centre and Stratford City.
For those who have a whole day in which to see East London we recommend a morning East London and Olympic Park tour combined with an afternoon Olympic Greenwich tour.
2012 Sites Tour
The tour starts in Stratford where you view the work in progress on the Olympic Park.
Hear the history of London’s Royal Docks, as you travel to the Boxing, Judo, Weightlifting, Wrestling, Table Tennis and Taekwondo venue. View the O2 Arena. See the new London City Airport, Thames Barrier Park, University of East London, new waterside apartments and smart hotels.
For those who have a whole day in which to see 2012 Olympic London we recommend a morning 2012 Olympic Sites tour combined with an afternoon 2012 Olympic Greenwich tour.
2012 Greenwich Tour
Greenwich will host 6 Olympic events.Your tour of Greenwich will include the Greenwich Park, where the equestrian events will take place.
Cross the Meridian Line to see the large buildings at Woolwich. Finally, we can show you the exciting developments taking place on the Greenwich Peninsular, which will be hosting a number of Olympic events.
【小題1】What can be learnt from the passage?

A．London’s Olympic Park is being built.
B．London’s East End hasn’t changed much.
C．More than 6 Olympic events will take place in Greenwich.
D．No events will be hosted on the Greenwich Peninsular.
【小題2】Which of the following is not included in 2012 Sites Tour?
A．Hear the history of London’s Royal Docks.
B．View the O2 Arena.
C．See the new London City Airport.
D．Cross the Meridian Line.
【小題3】If you want to visit the place where the equestrian events will take place, which tour will you choose?
A．East London and the Olympic Park Tour
B．2012 Sites Tour
C．2012 Greenwich Tour
D．Olympic Park Tour

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科目：高中英語(yǔ) 來源： 題型：閱讀理解

Doctors say obesity，also known as severe overweight，is a complex condition.A doctor may advise medical interventions(醫(yī)療干預(yù)) in addition to changes in behavior.But experts say the more successful weight­loss plans include a well­balanced diet and exercise.
People who want to avoid weight gain have to balance the number of calories they eat with the number of calories they use.To lose weight，you can reduce the number of calories you take in，or increase the number you use，or both.Experts at the National Institutes of Health say to lose weight，a person should do some moderate or intensive physical exercise most days of the week.This could include fast walking，sports or strength training.
A recent study looked at four of the most popular dieting plans in the United States.Researchers at Stanford University studied more than three hundred overweight women，mostly in their thirties or forties.Each woman went on one of the four plans：Atkins，The Zone，Ornish or LEARN.The women attended diet classes and received written information about the food plans.At the end of a year，the women on the Atkins diet had lost the most，more than four and a half kilograms on average.
Christopher Gardner led the study，reported in the Journal of the American Medical Association. He said the Atkins diet may be more successful because of its simple message to lower the intake of sugar.Also，he said the advice to increase protein in the diet leads to more satisfying meals.
But last week，another report suggested that only a small minority of people have long­term success in dieting.Researchers at the University of California found that most dieters regained their lost weight within five years.And often they gained back even more.But those who kept the weight off generally were the ones who exercised.
【小題1】All the following is helpful to lose weight EXCEPT________.

A．a(chǎn) healthy diet B．physical exercise
C．medical interventions D．being polite to others
【小題2】You are most likely to gain too much weight if________.
A．you eat the same number of calories as the number you use
B．you take in less calories than the number you use
C．you take in more calories than the number you use
D．you take exercise regularly on the weekdays
【小題3】The third paragraph mainly tells us that________.
A．there are four popular dieting plans in the USA
B．the Atkins diet has the best effect on losing weight
C．lots of women attended diet classes every day
D．dieting plan is the most important
【小題4】Which one of the following is NOT right according to this passage?
A．The change of your life habits can help you lose weight.
B．You’d better exercise once a week to lose some weight.
C．The Atkins diet may be good because of lowering the intake of sugar.
D．Some people gain weight back for their unhealthy diet.
【小題5】Which one of the following is the best title for this passage?
A．Successful Weight­loss Plans B．Four Popular Dieting Plans
C．What Is the Atkins Diet? D．Few People Fail in Losing Weight

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科目：高中英語(yǔ) 來源： 題型：閱讀理解

A new study has found evidence of aggressive (攻擊性的) behavior in children who drink four or more servings of soft drinks every day. Information for the study came from the mothers of 3,000 5-year-olds. Researchers asked the women to keep a record of how many servings of soft drinks their children drank over a two-month period. They were also asked to complete a checklist of their children’s behavior.
The researchers have found that 43 percent of the children drink at least one daily serving of soda, and 4 percent of the youngsters have even four or more sodas to drink every day.
Shakira Suglia, a famous expert, says they’ve found that children who drink the most soda are more than twice as likely as those who drink no soda to show signs of aggression.
“For the children who consume four or more soft drinks per day, we see more withdrawn behaviors, which make them hard to get along well with others.”
The aggressive behaviors include destroying possessions belonging to others, taking part in fights and physically attacking people.
The researchers have determined the link after considering factors like the child’s age and sex. They have also considered other possible influence, such as whether the boys and girls are eating sweets or giving fruit drinks on a normal day. In addition, the researchers have examined parenting styles and other social conditions that may be taking place in the home.
Researches are trying to find why young children who drink a lot of soda have behavior problems. An ingredient often found in soft drinks is caffeine, which helps to make people feel energetic. Doctor Suglia suggests that caffeine could cause the 5-year-olds to be more aggressive. Earlier studies of adults have found the highest sugar levels in those who carry weapons (武器) and show signs of negative social behavior.
【小題1】What section of a newspaper is the passage probably taken from?

A．Scientific Technology B．Science Fictions C．Social News D．Health Report
【小題2】The underlined word “withdrawn” in paragraph 4 can probably be replaced by the word ______.
A．backward B．unsocial C．generous D．friendly
【小題3】 Researchers studied the following aspects of the children except ______.
A．a(chǎn)ge B．sex C．games D．parents
【小題4】According to the research, which of the following is right?
A．Mothers were asked to keep a record of how many servings of soft drinks their children drank over a three-month period.
B．4 percent of the youngsters have even four or fewer sodas to drink every day.
C．Children who drink no soda show fewer aggressive behaviors.
D．Children with the highest sugar levels tend to carry weapons and show signs of negative social behavior.
【小題5】After a further study on ingredients in soda, Shakira Suglia implies that the direct cause of the aggressive behaviors may be ______.
A．soft drinks B．a(chǎn)ttention problems C．caffeine D．social conditions

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科目：高中英語(yǔ) 來源： 題型：閱讀理解

The dark chocolate is one of the favourite food choices by many.The taste is simply irresistible，the smell is tempting and the feel of every bite is surely what you are craving for.
Aside from the taste，you simply cannot resist it because it has a lot of benefits when it comes to your health.Our health is our priority(首要事情) when it comes to the choice of our foods.If you worry that the chocolate is bad for your health then here is a list of the effects of dark chocolate to health especially when taken with the right amount every day.
First of all，it contains a component called flavonoid(類黃酮) which acts as an antioxidant(抗氧化劑)．The_antioxidants_fight_the_common_signs_of_aging.The antioxidants are also good for the heart.Studies have shown that people who ate foods rich in antioxidants have low incidence of heart diseases.
Aside from the anti­aging and healthy heart benefits，the dark chocolate can also lower blood pressure and reduce bad cholesterol(膽固醇) to as high as 10%.Lowering of blood pressure in patients of high blood level is good because it will lower the risks of stroke and certain health crisis.Low levels of blood cholesterol are also good for the heart and take away the risk of blood vessels which may harden for too much cholesterol in them.
Lastly，do you know the feeling of being overjoyed after jogging？This feeling is like extreme happiness.Dark chocolates will give you the feeling of pleasure and happiness.If you are feeling that the world has turned against you，then a chocolate can be a mood lifter.It is an antidepressant.Usually when we feel so bad，we would crave to eat more food.If you are looking for something to eat during your bad moments try to take a bite from a dark chocolate and feel good somehow after it.
These are commonly the effects of chocolates to health.It can benefit you especially if taken in moderate amounts.Approximately,100 grams of chocolate or less a day is already enough according to studies.If you have taken too much，try to lessen on your other meals for the day.It is all about nutrition and taking the right amount of food in order to get the health benefits that it can provide to you.
【小題1】According to the text，________.

A．many people like the dark chocolate for its taste
B．the dark chocolate is the best choice for most people
C．nobody could resist the tempting smell of the dark chocolate
D．only a bite of the dark chocolate will make you addicted to it
【小題2】The underlined sentence in Paragraph 3 suggests that dark chocolates ________.
A．a(chǎn)re the best choices for the aged
B．a(chǎn)re usually used as an antioxidant
C．can keep you stay young forever
D．can make you look younger than your real age
【小題3】What can we learn from Paragraph 5?
A．If you are depressed dark chocolates will make you delighted.
B．If you are feeling bad you will crave to eat dark chocolates.
C．If you eat some dark chocolates you will get overjoyed.
D．If you are hungry the best food is dark chocolates.
【小題4】What is the purpose of the author writing this text?
A．To introduce the black chocolate to patients with high blood level.
B．To encourage us to eat as many chocolates as we can.
C．To introduce the black chocolate and its health effects.
D．To increase the sale of the black chocolate.

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科目：高中英語(yǔ) 來源： 題型：閱讀理解

Most children, even the youngest of children, are delighted to be around cats and dogs. But these pets carry plenty of germs and allergens（過敏原）, prompting researchers to ask: Are cats and dogs really safe for children？
A study finds that, contrary to many parents’ fears, owning cats or dogs does not increase a child’s risk of developing allergies, and in fact, may actually protect them. The study’s lead author, Dr. Dennic Ownby of the Medical College of Georgia, says that even he was “very surprised” by the results. Ownby and colleagues followed more than 470 children from birth to age 6 or 7, comparing those exposed to cats and dogs during their first year of life to those who were not.
By using skin-prick tests for detecting common allergies, the researchers found that, contrary to what many doctors had been taught for years, children who had lived with a pet were not at greater risk.
Even more remarkable, children who had two or more dogs or cats had an even greater reduction, up to 77 percent, in risk of allergies. Researchers suggest this protective effect may be the result of early exposure to lots of bacteria that are carried by dogs and cats. Exposing young children to these bacteria helps "exercise" their immune systems early in life so that they're better able to resist allergic diseases later.
There's something very important in that first year of life when the immune(免疫) system is developing that we can retrain it away from an allergic response, said Dr. William Davis.
And while researchers are not encouraging parents to buy dogs or cats just to reduce a child’s allergy risk, they say if a family already has one or more animals, there's no need to get rid of them.
【小題1】Why do the researchers feel “very surprised” by the results of the study?

A．Because the results are contrary to their expectation．
B．Because so many children are playing with cats and dogs．
C．Because parents are so much worried about their children．
D．Because children with animals may develop allergies easily．
【小題2】Compared with children who have pets，those who haven’t  ______.
A．will lose the chance to develop immune system
B．will reduce the harm from bacteria
C．may suffer allergic diseases more often
D．can keep doctors away
【小題3】The underlined word “it” in the fifth paragraph refers to________.
A．the early life B．a(chǎn)n allergic disease
C．something important D．immune system
【小題4】What is the passage mainly about?
A．How to protect your kids from allergies
B．Bacteria do good to your kids
C．Your pets may be helping your kids
D．Advantages of owning pets

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科目：高中英語(yǔ) 來源： 題型：閱讀理解

The World Health Organization says there has been a sharp increase in the number of over-weight children in developing countries. In African countries, the WHO says the number of over-weight or obese children is twice as high as it was 20 years ago. Around the world, about 43 million children under the age of five were overweight in 2013.
Overweight and obese children are more likely to become overweight and obese adults. The condition can generate serious health problems like heart diseases.
Francesco Branca is the director of the WHO Department of Nutrition for Health and Development. He says urban lifestyle makes people eat processed food more often ,which has a high sugar ,fat and salt content. He also says people are gaining weight because of their lack of activities. They travel in cars or other vehicles more than on foot.
The WHO experts say to lower obesity rates is especially complex in countries that also deal with high rates of infectious(感染性的) diseases.
The WHO has some basic solutions for individuals and countries. The organization says you should lower your intake of fat, sugar, salt and processed food and eat more fruits,' vegetables and increase physical activity. The WHO says these actions are especially important for children.
And WHO expert Branca says mothers should breastfeed their babies for at least the first six months of life, if possible. More importantly, governments should consider providing vitamins for children and educational campaigns about problems linked to obesity would also help. In his view, government policies should deal with how food is marketed to children and food producers must balance quality and taste with the dangers of sugar, fat and salt. "Reducing the number of overweight children will not be easy. The goal is difficult to meet even in wealthy countries. " he adds.
【小題1】What is the main idea of Paragraph l?

A．Children in developing countries generally weigh too much.
B．Overweight children in developing countries have increased greatly.
C．The number of overweight children in the world has doubled.
D．The World Health Organization has increased greatly.
【小題2】According to Branca , people are becoming overweight because of their changes in _______
A．lifestyles B．transportation
C．physical condition D．school educational .
【小題3】Which of the following word can best replace the underlined word in Paragraph 2?
A．cure B．prevent C．worsen D．cause
【小題4】According to WHO, which of the following is true?
A．Poor nutrition is often related to children obesity.
B．To lower infectious disease rates is more complex than to lower obesity rates.
C．Eating less sugar and more vegetables helps lower obesity rates.
D．Increasing physical activity is most effective to lower obesity rates.
【小題5】What can we learn from the last Paragraph?
A．Babies breastfed aren't likely to become overweight.
B．Governments should play a necessary role in fighting obesity.
C．Food producers should be stopped from marketing, food to children.
D．The number of overweight children decreases easily in wealthy countries.

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科目：高中英語(yǔ) 來源： 題型：閱讀理解

You might think I'd have little in common with a camel, but we do share one useful skill: both of us can go for a very long time without water. Usually I start my day with a cup of tea, and then I might have a glass of water with my lunch and one with dinner, that's about a liter of liquid in 24 hours. It feels like plenty, but apparently it's not nearly enough.
After years of suffering headaches and poor digestion I spoke to a neurologist about my regular headaches and a nutritionist about my poor digestion, and both told me I should be drinking up to three liters of liquid a day for my body to function at its best. I decided to conduct an experiment. What would happen if I drank the recommended amount every day for a month?
The photograph of me taken the day I started this trial demonstrates(展示）perfectly and rather frighteningly what a lack of hydration does to a face. I am 42, but have to admit I look more like 52 in this picture, which is shocking. There are dark shadows under and around my eyes, which make me look exhausted, a profusion of wrinkles and strange reddish blotches, and my skin lacks any luster（光澤）. It looks dead. Even my lips look shriveled（枯萎的）. This is all classic evidence of poor hydration, apparently.
Every system and function in our body depends on water. It flushes toxins from the vital organs, carries nutrients to cells, provides a moist environment for ear, nose and throat tissues, and eliminates waste.
Not drinking enough means all these functions becomes damaged. So I decided to see how I would look and feel if I drank three liters of water every day for 28 days. The results were astonishing.
【小題1】Which statement is Not True according to Paragraph 1?

A．The author drinks about a liter of liquid every day.
B．The author has something in common with a camel.
C．The author thinks she drinks enough water every day.
D．The author actually has plenty of water in her daily life.
【小題2】Why did the author decide to drink the recommended amount of water?
A．Because she was very fond of doing experiments.
B．Because she was informed of the importance of drinking enough water.
C．Because her doctors forced her to do it.
D．Because she wanted to be cured of her stomachache.
【小題3】The author’s lack of hydration caused the following physical responses Except_______.
A．shriveled lips
B．enough luster of her skin
C．dark shadows around her eyes
D．wrinkles and blotches on her face
【小題4】According to the passage, the author most probably tends to tell us_________.
A．the more water one drinks, the healthier he is
B．drinking water makes ladies look younger
C．drinking enough water is key to one’s health
D．it’s necessary to follow specialists instructions
【小題5】What will be probably written in the next paragraph?
A．The author gave up the experiment.
B．The author had his health greatly improved.
C．The author suffered a lot from the experiment.
D．The author felt very disappointed at the result.

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科目：高中英語(yǔ) 來源： 題型：閱讀理解

It doesn’t matter when and how much a person sleeps, but everyone needs some rest to stay alive. That’s what all doctors thought, until they heard about Herpin. Herpin, it was said, never slept. Could this be true? The doctors decided to see this strange man themselves.
Herpin was 90 years old when the doctors came to his home in New Jersey. They thought for sure that he got some sleep of some kind. So they stayed with him and watched every movement he made. But they were surprised. Though they watched him hour after hour and day after day, they never saw him sleeping. In fact, he did not even own a bed. He never needed one.
The only rest that Herpin sometimes got was sitting in a comfortable chair and reading newspapers. The doctors were puzzled by this strange continuous sleeplessness. They asked him many questions, hoping to find an answer. They found only one answer that might explain his condition. Herpin remembered some talk about his mother having been injured several days before he was born. But that was all. Was this the real reason? No one could be sure. Herpin died at the age of 94.
【小題1】The main idea of this passage is that_____.

A．large numbers of people do not need sleep
B．a(chǎn) person was found who actually didn’t need any sleep
C．everyone needs some sleep to stay alive
D．people can live longer by trying not to sleep
【小題2】The doctors came to visit Herpin, expecting_____.
A．to cure him of his sleeplessness
B．to find that his sleeplessness was not really true
C．to find out why some old people did not need any sleep
D．to find a way to free people from the need of sleeping
【小題3】After watching him closely, the doctors came to believe that Herpin_____.
A．needed some kind of sleep
B．was too old to need any sleep
C．needed no sleep at all
D．often sleep in a chair
【小題4】One reason that might explain Herpin’s sleeplessness was _____.
A．his mother’s injury before he was born
B．that he had gradually got rid of the sleeping habit
C．his magnificent physical condition
D．that he hadn’t got a bed
【小題5】Herpin’s condition could be regarded as ______.
A．a(chǎn) common oneB．one that could be curedC．very healthyD．a(chǎn) rare one

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