题目列表(包括答案和解析)
A new study by Penn State College of Medicine research team found that honey is a better and safer treatment for children than cough medicines.
Ian Paul, the study’s lead researcher, was motivated to test honey because treating coughs in children has recently become a sticky subject. Coughing is the body’s way of cleaning irritated (受刺激的) airways to help you breathe. But too much coughing can irritate your lungs and throat even more. It can also make it tough to get the sleep your body needs to heal. Hoping to ease the suffering of their children, parents often give them cough medicines.
But there have never been any good studies showing that they work. Cough and cold medicines may also cause serious side effects. Hundreds of kids die in the hospital each year after receiving too much cough medicine by mistake. Last October, the US Food and Drug Administration suggested that parents should not give cough medicines to children under 6.
In order to search for a different solution, Paul designed a study that involved 105 kids who were sick with coughs and other cold conditions. At bedtime, the kids took buckwheat(荞麦) honey, honey-flavored (蜜蜂味的) DM (one of the most common ingredients成分in cough medicine), or no treatment. Parents and kids in the no-treatment group knew they weren’t getting anything, but the other two groups weren’t told which treatment they were getting.
The surveys showed that kids who swallowed about 2 teaspoons of buckwheat
honey before bedtime coughed less and slept better than kids in other groups.
“When parents want something for their kids to take,” Paul says, “honey seems
like the best option.”
But what gives honey its healing power? Substances called antioxidants(抗氧化剂) may be part of the answer. All honey contains antioxidants that protect our cells from damage. Studies show that antioxidant levels in the body rise after someone swallows honey.
1.Which of the following can be the best title for this passage?
A. Sweet solution to kids’ coughing
B. No cough medicines to children
C. Best treatment for your cold
D. Cough medicines don’t work
2.We can learn from Paragraph 2 that coughing ______.
A. can cure lung and throat diseases
B. is more harmful to children
C. sometimes does good to people
D. helps improve children’s die
3.During Paul’s experiment, the kids who received treatment __________.
A. seemed much worse than before
B. had no idea what they swallowed
C. knew they weren’t getting anything
D. coughed less and slept better
4. According to the passage, Paul’s experiment proved that ____.
A. honey may have real healing power
B. cough medicines may cause side effect
C. cough medicines don’t really work
D. buckwheat honey contain more antioxidants
Travel is exciting and summer is a busy period for holiday travel. Many people will travel great distances in airplanes, cars or other vehicles. Experts say people should know about other health problems that can strike when traveling by air.
One of these is a condition called hypoxia (缺氧症). It results from a lack of oxygen to the brain. Experts say the body begins losing oxygen minutes after an airplane leaves the ground. The air pressure in a plane during flight is lower than at sea level. This makes it more difficult for the body to effectively use the same amount of oxygen as it would on the ground. Fewer oxygen molecules （分子） cross the tissues (组织) in the lungs and reach the bloodstream.
The result is a five to twenty percent drop in the amount of oxygen in the blood. This reduces the amount of oxygen that reaches the organs of the body.
One effect of this lack of oxygen to the brain is a headache. When this happens, the heart attempts to fix the situation by beating harder and faster. This can make the traveler feel tired.
These signs of hypoxia are not dangerous in a healthy person. But a drop in oxygen level can cause a health emergency in people with heart or lung problems. They might lose consciousness or even suffer a heart attack.
Experts say that smoking cigarettes and drinking alcoholic liquids also reduce the body’s ability to use oxygen. So they suggest that people not drink alcohol or smoke cigarettes either before or during a flight. They also say persons with heart or lung problems should seek advice from their doctors before flying.
【小题1】The author writes the passage mainly to ___.
| A．warn people in airplanes of possible dangers |
| B．offer some advice on avoiding health problems |
| C．explain the causes and effects of hypoxia |
| D．advise people not to smoke or drink alcohol |
| A．The brain lacks enough oxygen. |
| B．The air pressure in a plane is too high |
| C．Our body needs less oxygen during takeoff. |
| D．The bloodstream contains no oxygen molecules. |
| A．use more oxygen it needs |
| B．increase the air pressure |
| C．reduce the amount of blood |
| D．bump more blood to the brain |
| A．They weaken the body’s ability to use oxygen. |
| B．Smoking may pollute the air inside the airplane. |
| C．Drinking alcohol may raise one’s blood pressure. |
| D．Drinking is forbidden at the airport. |
| A．Tralling |
| B．how to travel |
| C．some suggestions about on the plane while travelling |
| D．the causes and effects of hypoxia |
三．阅读理解：（20×2.5=50分）
People have smoked cigarettes for a long time. The tobacco used to make cigarettes was grown in what is now part of the United States. Christopher Columbus, who discovered America, saw the Indians smoking, and soon the dried leaves were transported to Europe where smoking began to catch on. In the late 1800s, the Turk(土耳其人) made cigarettes even popular.
Cigarettes smoke contains at least two harmful substances, tar and nicotine. Tar, which forms as the tobacco burns, damages the lungs and therefore affects breathing. Nicotine, which is found in the leaves, causes the heart to beat faster and increases breathing rate.
Smoking cigarettes is dangerous. The U.S. Public Health Service stated that cigarette smoking is the cause of lung cancers and several other deadly diseases. The U.S. government now requires that each package of cigarettes bear（带有）a special warning about the danger of smoking.
1. The expression “catch on” in the passage may mean _________.
A. start B. cost a lot C. become popular D. dangerous
2. Before Columbus discovered America __________.
A. Europeans had smoked B. Nobody smoked in the world
C. Nicotine was not in tobacco D. Europeans had never smoked
3. In the nineteenth century smoking became popular because of the people in ________.
A. India B. Turkey C. the U.S. D. British
4. Breathing is affected by ___________.
A. nicotine B. tar C. heat D. both A and B
For many people, there is only one good reason to go to an amusement park: the roller coaster. But why do People go on roller coasters?
"Where else in the world can you scream at the top of your lungs and throw your arms in the air?" Frank Farley asks. "If you did that in most other places, they'd take you to your parents and probably put you through a psychological evaluation (心理检查)." Farley is a psychologist at Temple University in Philadelphia, Pennsylvania.
Roller coasters are often attractive to kids whose lives are stressful or controlled. "Roller coasters are a way of breaking out of the humdrum (单调 ) of everyday life. You can let it all go and scream and shout or do whatever you want," Farley says. It has been proved that many adults feel the same way.
Compared with skateboarding, extreme mountain biking, and other adventure sports, riding roller coasters is safe. Parents usually don't mind when kids go on coasters. Roller coasters also have a way of bringing people together. Riders share the thrill and adventure of surviving what feels like an extreme experience.
Whether you like to ride a roller coaster may depend on your personality. Psychologists say that there is a certain type of person that naturally seeks out extreme experiences. "They enjoy things like change, variety, and intensity (强度)," says Farley. "These people are actually attracted to thrills." He describes such people as having Type-T personalities ("T" stands for thrill).
He also believes that these thrill seekers are more adventurous and creative than other people. Albert Einstein was a Type T. "If nobody liked to seek stimulation (刺激)," he argues, "the human race wouldn't be where it is today."
1. What is the passage mainly about? 
A. The disadvantages of roller coasters.
B. The characteristics of roller coasters.
C. Why many people enjoy roller coasters.
D. How people act when riding roller coasters.
2. According to Farley, what will most people feel after riding a roller coaster?
A. Scared. B. Confident. C. Nervous. D. Relaxed.
3. If a person is a Type T, he seems to .
A. enjoy adventure sports
B. dislike riding roller coasters
C. like popular sports
D. work well with others
4. According to Farley, to our society, people with Type-T personalities are __
A. dangerous B. important C. useless D. harmful
The economic growth that many nations in Asia and increasingly Africa have experienced over the past couple of decades has transformed hundreds of millions of lives – almost entirely for the better. But there’s a byproduct to that growth, one that’s evident – or sometimes less than evident – in the smoggy, smelly skies above cities like Beijing, New Delhi and Jakarta. Thanks to new cars and power plants, air pollution is bad and getting worse in much of the world, and it’s taking a major toll (伤亡人数，代价) on global health.
How big? According to a new analysis published in the Lancet, more than 3.2 million people suffered deaths from air pollution in 2010, the largest number on record. That’s up from 800,000 in 2000. And it’s a regional problem: 65% of those deaths occurred in Asia, where the air is choked by diesel soot (内燃发动机烟雾) from cars and trucks, as well as the song from power plants and the dust from endless urban construction. In East Asia and China, 1.2 million people died, as well as another 712,000 in South Asia, including India. For the first time ever, air pollution is on the world’s top – 10 list of killers, and it’s moving up the ranks faster than any other factor.
So how can air pollution be so damaging? It is the very finest soot – so small that it roots deep within the lungs and from the enters the bloodstream – that contributes to most of the public – health toll of air pollution including death. Diesel soot, which can also cause cancer, is a major problem because it is concentrated in cities along transportation zones affecting overpopulated areas. It is thought to contribute to half the deaths from air pollution in urban centers. Fro example, 1 in 6 people in the U.S. live near a diesel – pollution hot spot like a rail yard, port terminal or freeway.
We also know that air pollution may be linked to other non – deadly diseases. Fortunately in the U.S. and other developed nations, urban air is for the most part cleaner than it was 30 or 40 years ago, thanks to regulations and new technologies like the catalytic converters (催化式排气净化器) that reduce automobile emissions. Governments are also pushing to make air cleaner – see the White House’s move last week to further tighten soot standards. It’s not perfect, but we’ve had much more success dealing with air pollution than climate change.
Will developing nations like India eventually catch up? Hopefully – though the problem may get worse before it gets better. The good news is that it doesn’t take a major technological advance to improve urban air. Switching from diesel fuel to unleaded (无铅燃油) helps, as do newer and cleaner cars which are less likely to send out pollutants. Power plants – even ones that burn mineral fuels like coal – can be fitted with pollution – control equipment that, at a price, will greatly reduce smog and other pollutants.
But the best solutions may involve urban design. In the Guardian, John Vidal notes that Delhi now has 200 cars per 1,000 people, far more than much richer Asian cities like Hong Kong and Singapore. Developing cities will almost certainly see an increase in care ownership as residents become wealthier – and that doesn’t have to mean deadly air pollution. Higher incomes should also lead to tougher environmental regulations, witch is exactly what happened in the West. We can only hope it happens before the death toll from bad air gets even higher.
1.What tends to give rise to the highest death toll according to the passage?
A．The lack of tight environmental protection standards.
B．The increasing numbers of the diesel cars and trucks.
C．The frighteningly high death rate from deadly cancer.
D．The world’s serious air pollution such as soot and dust.
2.The “byproduct” (Paragraph 1) most probably refers to .
A．consequence B．solution C．reform D．design
3.The basic reason why so many people die from air pollution is that .
A．the diesel soot is too small to be seen
B．the diesel soot is much too poisonous to breathe
C．the diesel soot roots in lungs and gets into blood
D．the diesel soot can also contribute to deadly cancer
4.According to the passage, the writer actually wants to convince the readers that .
A．the global economic growth is mainly to blame for air pollution and climate change
B．the developing countries are repeating the same mistakes as the developed ones made
C．the ecological situation and air pollution in India are becoming worse and worse
D．the unbeatable air is increasingly becoming a major killer throughout the world
5.By describing urban design as “the best solution” in the last paragraph, the writer means that .
A．the making of tougher environmental regulations alone is of little use
B．more sever regulations should be made to handle air pollution
C．the urban construction in western developed countries is the best choice
D．the pace of development has to be slowed down to reduce air pollution
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