There is an English saying :“laughter is best medicine . Until recently ,few people took the saying seriously .Now however ,doctors have begun to look into laughter and the effects it has on the huma 题目和参考答案——青夏教育精英家教网—

Bad teeth can be painful -- and worse. They can even be deadly. Infections (感染) of the gums (牙龈) and the teeth can cause bacteria (细菌) to go into the blood system. Those bacteria can increase the chance of a heart attack and worsen the effects of other diseases. And adults are not the only ones at risk.
For example, in 2007, doctors in the Washington area said a boy died when a tooth infection spread to his brain. They said it might have been prevented had he received the dental care (牙齿保健) he needed. He was twelve years old.
Experts at the National Institutes of Health 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 the growth of bacteria and acid production in the mouth.
But dentists say a baby's gums and early teeth should be cleaned after each feeding. Use a cloth with a little warm water. Do the same if a baby is fed with a bottle. Experts say if you decide to put your baby to sleep with a bottle, only give the child 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 (珐琅质) , the hard surface on teeth, to help prevent holes from forming.
小题1:Which of the following can be used as the title of the passage?

A．How to develop babies' teeth.	B．How to keep babies' teeth clean
C．Why to protect babies' teeth	D．Why to keep babies' teeth clean

小题3:The passage indicates that ______.

A．Enamel is most widely used to protect teeth in the world

B．Breast milk can cure babies' bad teeth

C．Bad teeth may affect the health of adults and the young

D．Babies' teeth should be brushed once per day

小题4:The writer uses the boy's death as an example to show that ______.

A．not only adults but the young may suffer from teeth problem

B．the doctors should be responsible for the case

C．babies with bad teeth can easily die

D．the boy was not fed with his breast milk

Do you love holidays but hate the increase（增长的） weight that follows? You are not alone.
Holidays are happy days with pleasure and delicious foods. Many people, however, are worried about the weight that comes along with these delicious foods.
With proper planning, though, it is possible to control your weight. The idea is to enjoy the holidays but not to eat too much. You don’t have to turn away from the foods that you enjoy. The following suggestions may be of some help to you.
Do not miss meals. Before you leave home for a feast (宴会), have a small, low-fat snack(小吃). This may help to keep you from getting too excited before delicious foods.
Begin with clear soup and fruit or vegetables. A large glass of water before you eat may help you feel full. Use a small plate; a large plate will encourage you to have more than enough.
Better not have high-fat foods. Dishes that look oily or creamy have much fat in them.
Choose lean meat (瘦肉). Fill your plate with salad and green vegetables.
If you have a sweet tooth, try mints (薄荷) and fruits. They don’t have fat content as cream and chocolate.
Don’t let exercise take a break during the holidays. A 20-minute walk after a meal can help burn off excess (过多的) calories.
小题1:Holidays are happy days with pleasure but they may______.

A．bring weight problems

B．bring you much trouble in your life

C．make you worried about your foods

D．make you hate delicious foods

小题2:In order to really enjoy your holidays without putting on weight, you’d better ___.

A．drink much water and have vegetables only

B．not eat much food in high fat

C．not accept invitations to feasts

D．turn away from delicious foods

小题3:According to the passage, ___ is a necessary part to stop you from putting on weight.

小题4:Many people can’t help putting on weight after the holidays because they ___.

A．can’t control themselves

B．go to too many feasts

C．enjoy delicious foods

D．can’t help turning away from the foods

A growing number of workers at Google Inc., Facebook Inc. and other employers are trading in their sit-down desks for standing ones, saying they feel more comfortable and energized. They also are motivated by medical reports saying that sitting for too long leads to increased health risks.
A standing desk sits high off the floor so a worker can either stand at it or sit on a high stool to use it. Officials at Palo Alto-based Facebook say a number of employees asked about standing desks after news articles were published about the health risks of sitting all day.
The stories cited medical studies that tied excessive sitting to increased obesity and other health problems because of factors including a drop in physical activity. A 2010 study by the American Cancer Society found that women who sat more than six hours a day were 37% more likely to die prematurely than women who sat for less than three hours, while the early-death rate for men was 18% higher. The American College of Cardiology released a study in January that found increased mortality (死亡率) among people who sat longer at home than those who didn't.
No one seems to compile statistics on the standing-desk trend. But anecdotal reports suggest Silicon Valley is embracing the movement.
Facebook officials say they have seen an upsurge in requests for standing desks to five to eight a week with a total of between 200 and 250 deployed (配置) at the company of more than 2,000 employees. Facebook also is trying out a treadmill station ─ where a worker can walk or run on a treadmill while tapping at a computer.
Google spokesman Jordan Newman said that 'many employees at Google opt for standing desks, and we offer them as part of our wellness program' though he said he didn't know the exact number.
Greg Hoy, 39 years old, asked for a standing desk shortly after joining Facebook seven months ago as a design recruiter. 'I don't get the 3 o'clock slump anymore,' he said. 'I feel active all day long.'
小题1:The underlined word “motivated” in paragraph 1 can be replaced by .

小题2:According to paragraph 3, we can know that .

A．a drop in physical activity was the only reason why excessive sitting caused increased obesity.

B．women who sat longer were more likely to die prematurely according to a 2010 study by American College of Cardiology

C．according to the study, the early-death rate for men was 18% higher than that for women.

D．the mortality among people who didn’t sat long at home was lower than that among people who did.

小题3:According to paragraph 5, which of the following statements is true about a treadmill station ?

A．is a computer that a worker can take along when he walks or runs

B．has been tried out by Facebook and now is very popular with other companies

C．is a place where workers can exercise while working.

D．is a treadmill on which workers can run or walk only after work

小题4:The passage mainly talks about .

A．sitting for too long leads to increased health risks

B．standing desks have replaced sit-down ones in Facebook Inc.

C．more and more workers choose standing desks instead of sit-down ones

D．many employees at Google opt for standing desks

Food sometimes gets poisoned with harmful things. A person who eats such food can get an illness called food poisoning(中毒). Food poisoning is usually not serious, but some types are deadly. The symptoms of food poisoning usually begin within hours of eating the poisoned food. Fever is one of the most common symptoms.
Certain microorganisms（微生物）cause most types of food poisoning. Bacteria and other microorganisms can poison eggs, meat, vegetables, and many other foods. After entering the body, these tiny living things release（释放）poisons that make people sick.
Some chemicals can also cause food poisoning. They are often added to food while it is being grown, processed, or prepared. For example, many farmers spray chemicals on crops to kill weeds and insects. Some people may have a bad reaction to those chemicals when they eat the crops.
Some plants and animals contain natural poisons that are harmful to people. These include certain kinds of seafood, grains, nuts, seeds, beans, and mushrooms.
When people handle food properly, the risk of food poisoning is very small. Microorganisms multiply rapidly in dirty places and in warm temperatures. This means that people should never touch food with dirty hands or put food on unwashed surfaces. Food should be kept in a refrigerator to stop microorganisms from growing. Meat needs to be cooked thoroughly to kill any dangerous microorganisms. People should also wash food covered with chemicals before eating it. Finally, people should not eat wild mushrooms or other foods that grow in the wild. Some of these foods may contain natural materials that are poisonous to humans. In addition, some types of fish can be poisonous.
Most people recover from food poisoning after a few days of resting and drinking extra water. If people eat natural poisons, they must go to the hospital right away to have their stomachs emptied.
小题1:Which of the following statements is NOT true?

A．Food when poisoned can make people sick.	B．Food poisoning means death.
C．Food poisoning comes in varieties.	D．Food poisoning can be serious.

小题2:We know from the passage that the symptoms of food poisoning .

A．are always accompanied by a fever	B．are too common to be noted
C．can be noticed within hours	D．can he ignored

小题3:Food poisoning can be caused by all the following EXCEPT .

A．some chemicals	B．low temperatures
C．some tiny living things	D．certain natural materials

小题4:From Paragraph 5,we can learn that .

A．mushrooms should not be eaten

B．vegetables are safer than meat and seafood

C．natural poisons are more dangerous than chemicals

D．different types of food should be handled differently

小题5:It can be inferred from the passage that .

A．natural materials are safe in food processing

B．chemicals are needed in food processing

C．food poisoning can be kept under control

D．food poisoning is out of control

Now I know that we black people are much more likely to have high blood pressure and diabetes(糖尿病) than white people. And they often lead to heart attacks and other untreated diseases. For example, black people are three to four times more likely than white people to have high blood pressure and twice as likely as the white population to die of a stroke(中风).
New research has found out the surprisingly high levels of salt in many of black people’s favorite meals. I stopped putting extra salt in my food at the table long ago and I try to cut down on the salt I use in cooking. The recommended daily level of salt for adults is 6 grams. It is easy to see that if you avoid processed(加工过的) foods and use salt in your cooking within the limit, you won’t exceed the daily level.
The research showed how much salt there is in some foods that we buy from restaurants and takeaways. An average salad with rice and peas has 6.2 grams of salt. This is more salt than you are supposed to eat for the whole day.
A researcher talked about the importance of home cooking rather than take-outs. At home, he pointed out, not only can you hold control of the salt shaker, but also you can create tasty food which is low on salt. The researcher later provided curry goat and rice and peas. They were low on salt, but completely delicious.
I do not suppose Jamaicans are going to stop buying takeaways soon. But if you suffer from high blood pressure, it is probably better not to buy them often.
小题1:The underlined word “they” in Paragraph 1 refers to ______.

A．white people	B．black people
C．untreated diseases	D．high blood pressure and diabetes

小题2:What has the new research found out according to Paragraph 2?

A．Black people take in too much salt.

B．Black people’s meals are very special.

C．Processed foods have too much salt in them.

D．6 grams of salt per day is enough for an adult.

小题3:What would the writer probably suggest black people do?

A．Order no salad in a restaurant.	B．Take in no salt for several days.
C．Stop cooking their favorite meals.	D．Eat less takeaways.

小题4:The researcher provided curry goat and rice and peas in order to ______.

A．thank those who came to his home for his research

B．let people know that eating less salt makes one healthier

C．show that tasty food with less salt can be made at home

D．prove the less salt the food has the more delicious it is

小题5:What would be the best title for this passage?

A．Watch the salt.	B．Take care, black people.
C．Say no to takeaways.	D．Say no to high blood pressure.

There is an English saying: “Laughter is the best medicine.” Until recently, few people took the saying seriously. Now, however, doctors have begun to look into (调查) laughter and the effects it has on the human body. They have found that laughter really can improve people’s health. Tests were carried out to study the effects of laughter on the body. People watched funny films while doctors checked their heart, blood pressure, breathing and muscles. It was found that laughter has similar effects to physical exercise. It increases blood pressure, the heart beating and breathing; it also works several groups of muscles in the face, the stomach, and even the feet. If laughter exercises the body, it must be beneficial (有益的).
Other tests have shown that laughter appears to be able to reduce the effect of pain on the body. In one experiment doctors produced pain in groups of students who listened to different radio programs. The group that tolerated (忍受) the pain for the longest time was the groups which listened to a funny program. The reason why laughter can reduce pain seems to be that it helps to produce a kind of chemicals in the brain which reduce both stress (紧张；压力) and pain.
As a result of these discoveries, some doctors in the United States now hold laughter clinics (诊所), in which they help to improve their patients’ condition by encouraging them to laugh. They have found that even if their patients do not really feel like laughing, making them smile is enough to produce beneficial effects similar to those caused by laughter.
小题1:The underlined phrase “took the saying seriously” in the first paragraph probably means “________”.

A．treat the saying as important	B．treat the saying as interesting
C．treat the saying as dangerous	D．treat the saying as funny

小题2:The main idea of the passage is _______.

A．laughter and physical exercises have similar effects on the human body

B．smile can produce the same effects as laughter

C．pain can be reduced by laughter

D．laughter is the best medicine

小题3:Doctors hold laughter clinics _______.

A．to give better condition to their patients

B．in order to improve patients’ health

C．to make patients smile

D．to prove smile and laughter have the same effect

Judging from recent surveys, most experts in sleep behavior agree that there is virtually an epidemic（流行病） of sleepiness in the nation．“I can’t think of a single study that hasn’t found Americans getting less sleep than they ought to,” says Dr．David．Even people who think they are sleeping enough would probably be better off with more rest．
The beginning of our sleep-deficit（lack）crises can be traced back to the invention of the light bulb a century ago．From diary entries and our personal accounts from the 18th and 19th centuries, sleep scientists have reached the conclusion that the average person used to sleep about 9.5 hours a night．“The best sleep habits once were forced on us, when we had nothing to do in the evening down on the farm, and it was dark．” By the 1950s and 1960s, the sleep schedule had been reduced dramatically, to between 7.5 and 8 hours, and most people had to wake to an alarm clock．“People cheat in their sleep, and they don’t even realize they’re doing it,” says Dr．David．“They think they’re okay because they can get by on 6.5 hours, when they really need 7.5, 8 or even more to feel ideally energetic. ”
Perhaps the most merciless robber of sleep, researches say, is the complexity of the day．Whenever pressures from work, family, friends and community increase, many people consider sleep the least expensive item on their programs．“In our society, you’re considered dynamic if you say you need only 5．5 hours’ sleep．If you’ve got to get 8．5 hours, people think you lack drive and ambition．”
To determine the consequences of sleep-deficit, researchers have put subjects through a set of psychological and performance tests requiring them, for instance, to add columns of numbers or recall a passage read to them only minutes earlier．“We’ve found that if you’re in sleep deficit, performance suffers,” says Dr．David．“Short-term memory is weakened, as are abilities to make decisions and to concentrate．”
小题1:What is the main topic of the passage?

A．The history of people’s sleeping patterns．

B．The epidemic of sleepiness in the modern times．

C．Research on the causes and consequences of sleep-deficit．

D．The minimum of our sleeping hours．

小题2:Which of the following is Dr．David’s opinion?

A．People’s metal power suffers if they are lacking in sleep．

B．Some people can remain energetic with only 6．5 hours’ sleep a night．

C．If they get 8．5 hours’ sleep, people will be full of drive and ambition．

D．People who think they are sleeping enough are better off than those who don't．

小题3:People in the 18th and 19th centuries slept about 9．5 hours a night because _______．

A．they had no electricity

B．they knew what was best for their health

C．they were forced by their parents to do so

D．they were not so dynamic and ambitious as modern people are

小题4:The major cause of sleep-deficit of modern people is _______．

A．the endless TV programs in the evenings and the internet

B．the heavy work load of the day

C．the sufficient energy modern people usually have

D．loud noises in the modern cities

小题5:What does the word “subjects” in paragraph 4 mean?

A．Person or thing that is being discussed or described．

B．Branch of knowledge studied in a school．

C．Person or thing being treated in a certain way or being experimented on．

D．Any member of a State apart from the supreme ruler．

“You'll have to take care of the baby today,” a woman told her husband. "I'm not feeling well."
"Then you must stay in bed and rest, dear" her husband said. "I'll be pleased to look after our baby." "By the way, shall I do the shopping for you as well?” her husband asked.
The woman was very glad and said, "That will help me very much. I'll give you a list of things to buy"
She wrote out the list and gave it to him.
The man took the baby to the supermarket and put him in the shopping cart. Then he pushed the shopping cart along the rows of things and looked for those that were on his list.
At first everything was OK, but then the baby began to cry.
Then he started to scream.
And scream!
And SCREAM!
“Keep calm, George,” the man said. “Don’t get excited. Don’t shout, George. Don’t lose your temper, George.”
A woman in the supermarket heard him saying so. She walked up to him.
“I think you are wonderful,” she said. “You are so patient with your little George.”
“Madam,” the man said, “I’m George. He’s Edward.”
小题1:The man took care of the baby instead because his wife was .

A．ill	B．busy doing housework
C．angry	D．going to buy things

小题2:The baby cried so hard .

小题3:When the baby was crying, the father kept taking to for relaxing.

小题4:The underlined sentence “Don’t lose your temper.” in this passage means“ ”.

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