Most people are aware that outdoor air pollution can damage their health，but many do not know that indoor air pollution can also have significant health effects.Environmental Protection Agency studies indicate that indoor levels of pollutants may be 3～5 times，and occasionally more than 100 times，higher than outdoor levels.These levels of indoor air pollutants may be of particular concern because most people spend about 90% of their time indoors.
There are many sources of indoor air pollution in any home.These include sources such as oil，gas，coal，wood，and tobacco products，building materials，wet or damp carpet，and furniture made of certain pressed wood products，products for household cleaning and maintenance，personal care，or hobbies，central heating and cooling systems.
Immediate effects may show up after a single exposure (暴露) or repeated exposures.These include irritation of the eyes，nose，and throat，headaches，dizziness.Such immediate effects are usually shortterm and treatable.Sometimes the treatment is simply removing the person’s exposure to the source of the pollution，if it can be identified.
The likelihood of immediate reactions to indoor air pollutants depends on several factors.Age and preexisting medical conditions are two important influences.In other cases，whether a person reacts to a pollutant depends on individual sensitivity，which varies tremendously from person to person.Some people can become sensitized to biological pollutants after repeated exposures，and it appears that some people can become sensitized to chemical pollutants as well.
Certain immediate effects are similar to those from colds or other viral (病毒性的) diseases，so it is often difficult to determine if the symptoms are a result of exposure to indoor air pollution.While pollutants commonly found in indoor air are responsible for many harmful effects，there is considerable uncertainty about what concentrations or periods of exposure are necessary to produce specific health problems.People also react very differently to exposure to indoor air pollutants.Therefore，further research is needed to better understand the effects of indoor air pollution and to find efficient ways to protect our health.
【小题1】According to the first paragraph，which of the following is NOT true?
| A．People often fail to notice indoor air pollution. |
| B．Indoor air pollution sometimes is more dangerous than outdoor air pollution. |
| C．Outdoor air pollution may not be so serious as indoor air pollution. |
| D．It is obvious that people have been paying more attention to indoor air pollution. |
| A．Building materials. | B．Wet carpet. |
| C．Cooling system. | D．Refrigerators. |
| A．Bad intention. | B．Much sensitivity. |
| C．Injury. | D．Carelessness. |
| A．Reactions of Pollution | B．Danger from Home |
| C．Pollution Resources | D．Different Pollutions |
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学练快车道口算心算速算天天练系列答案科目：高中英语 来源： 题型：阅读理解
Why is pink or purple a color for girls and blue or brown for boys?
The answer depends largely on cultural values as well as personal experiences. To the Egyptians, green was a color that represented the hope and joy of spring, while for Muslims, it means heaven. Red is a symbol of good luck in many cultures. In China, children are given money in a red envelope to bring good fortune in the New Year. For many nations, blue is a symbol of protection and religious beliefs. Greek people often wear a blue necklace hoping to protect themselves against evils（灾祸）.
People’s choice of colors is also influenced by their bodies’ reactions （反应）toward them. Green is said to be the most restful color. It has the ability to reduce pain and relax people both mentally and physically. People who work in green environment have been found to have fewer stomach aches.
Red can cause a person’s blood pressure to rise and increase people’s appetites（食欲）. Many decorators will include different shades of red in the restaurant. Similarly, many commercial websites will have a red “Buy Now” button because red is a color that easily catches a person’s eye.
Blue is another calming color. Unlike red, blue can cause people to lose appetite. So if you want to eat less, some suggest that eating from blue plates can help.
The next time you are deciding on what to wear or what color to decorate your room, think about the color carefully.
【小题1】Muslims regard green as a symbol of heaven mainly because of their .
| A．cultural values |
| B．commercial purposes |
| C．personal experiences |
| D．physical reactions to the color |
| A．To relax people physically. |
| B．To increase people’s appetites. |
| C．To encourage people to make a purchase. |
| D．To cause a person’s blood pressure to rise. |
| A．Red | B．Green. | C．Blue. | D．Purple. |
| A．Colors and Human Beings |
| B．The Cultural Meaning of Color |
| C．Colors and Personal Experiences |
| D．The Meaning and Function of Color |
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科目：高中英语 来源： 题型：阅读理解
Along the river banks of the Amazon and the Orinoco there lives a bird that swims before it can fly, flies like a fat chicken, eats green leaves, has the stomach of a cow and has claws(爪)on its wings when young .They build their homes about 4.6m above the river ,an important feature(特征)for the safety of the young. It is called the hoatzin.
In appearance，the birds of both sexes look very much alike with brown on the back and cream and red on the underside .The head is small, with a large set of feathers on the top, bright red eyes, and blue skin. Its nearest relatives are the common birds, cuckoos. Its most striking feature, though, is only found in the young.
Baby hoatzins have a claw on the leading edge of each wing and another at the end of each wing tip .Using these four claws ,together with the beak(喙),they can climb about in the bushes, looking very much like primitive birds must have done. When the young hoatzins have learned to fly, they lose their claws.
During the drier months between December and March hoatzins fly about the forest in groups of 20 to 30 birds, but in April, when the rainy season begins, they collect together in smaller living units of two to seven birds for producing purposes.
【小题1】What is the text mainly about?
| A．Hoatzins in dry and rainy seasons. |
| B．The relatives and enemies of hoatzins. |
| C．Primitive birds and hoatzins of the Amazon. |
| D．The appearance and living habits of hoatzins. |
| A．they look like young cuckoos |
| B．they have claws on the wings |
| C．they eat a lot like a cow |
| D．they live on river banks |
| A．They had claws to help them climb. |
| B．They could fly long distances. |
| C．They had four wings like hoatzins. |
| D．They had a head with long feathers on the top. |
| A．To find more food. |
| B．To protect themselves better. |
| C．To keep themselves warm. |
| D．To produce their young. |
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科目：高中英语 来源： 题型：阅读理解
People from East Asia tend to have more difficulty than those from Europe in distinguishing facial expressions — and a new report published online in Current Biology explains why.
Rachael Jack, University of Glasgow researcher, said that rather than scanning evenly(均匀的) across a face as Westerners do, Easterners fix their attention on the eyes.
"We show that Easterners and Westerners look at different face features to read facial expressions," Jack said. "Westerners look at the eyes and the mouth in equal measure, whereas Easterners favor the eyes and neglect (忽略) the mouth."
According to Jack and her colleagues, the discovery shows that human communication of emotion is more complex than previously believed. As a result, facial expressions that had been considered universally recognizable cannot be used to reliably convey emotion in cross-cultural situations.
The researchers studied cultural differences in the recognition of facial expressions by recording the eye movements of 13 Western Caucasian and 13 East Asian people while they observed pictures of. expressive faces and put them into categories: happy, sad, surprised, fearful, disgusted, angry, or neutral. They compared how accurately participants read those facial expressions using their particular eye movement strategies.
It turned out that Easterners focused much greater attention on the eyes and made significantly more errors than did Westerners. "The cultural difference in eye movements that they show is probably a reflection of cultural difference in facial expressions," Jack said. "Our data suggest that whereas Westerners use the whole face to convey emotion, Easterners use the eyes more and mouth less."
In short, the data show that facial expressions are not universal signals of human emotion. From here on, examining how cultural factors have diversified these basic social skills will help our understanding of human emotion. Otherwise, when it comes to communicating emotions across cultures, Easterners and Westerners will find themselves lost in translation.
【小题1】The discovery shows that Westerners .
| A．pay equal attention to the eyes and the mouth |
| B．consider facial expressions universally reliable |
| C．observe the eyes and the mouth in different ways |
| D．have more difficulty in recognizing facial expressions |
| A．To make a face at each other. | B．To get their faces impressive. |
| C．To classify some face pictures. | D．To observe the researchers' faces. |
| A．The participants in the study. |
| B．The researchers of the study. |
| C．The errors made during the study. |
| D．The data collected from the study. |
| A．do translation more successfully |
| B．study the mouth more frequently |
| C．examine the eyes more attentively |
| D．read facial expressions more correctly |
| A．The Eye as the Window to the Soul |
| B．Cultural Differences in Reading Emotions |
| C．Effective Methods to Develop Social Skills |
| D．How to Increase Cross-cultural Understanding |
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科目：高中英语 来源： 题型：阅读理解
Did you get a flu shot this year？For the first time，the Centers for Disease Control and Prevention in the US is recommending that all children aged from 6 months to 18 years receive the flu vaccine.
Vaccines battle diseases caused by bacteria and viruses.A weakened form of the germ (病菌) is introduced into the body.The body makes special substances called antibodies (抗体) to fight the germs.If the actual germs were to attack，the antibodies would fight.Because there are many kinds of flu viruses，scientists must create a new vaccine formula (处方) each year.Researchers must make a prediction.
It is like forecasting the weather.Sometimes they are right on，and sometimes they are off.But even when the vaccine does not closely match circulating flu types，it can make the illness less serious.
“The flu vaccine is not as effective as the polio (小儿麻痹症) vaccine or the measles vaccine，” says Dr.William Schaffner of Vanderbilt University School of Medicine.“It’s not a great vaccine，but it is in fact quite a good vaccine.”
But a flu vaccine doesn’t work for everyone.There are certain people who should be careful about taking it，because the vaccine is produced in eggs.Those who are allergic (过敏的) to eggs should not take it.If you have a fever，you should wait until you recover.
Some people are afraid that they might get the flu from the flu shot.Scientists say that it is not possible，because the viruses in the flu shot are inactivated.But some minor side effects such as lowgrade fever and body ache could occur.If they do，they begin soon after the shot and usually last only one to two days.
Did you know？Smallpox was the first disease people tried to prevent by putting a virus into a healthy person.In 1796，English scientist Edward Jenner placed some infected material under a boy’s skin.
【小题1】The underlined word “vaccine” (in Para.1) refers to________.
| A．virus used for fighting against disease |
| B．antibody to fight the germs |
| C．formula to fight against disease |
| D．germ to be injected into the body |
| A．is as effective as the polio and the measles vaccines |
| B．is worse，compared with the polio and the measles vaccines |
| C．does help to make illness less serious |
| D．is quite good because it works for everyone |
| A．those who are not allergic to eggs can take the flu vaccine |
| B．not all the flu vaccines are effective for everyone |
| C．you should go to a doctor if you have a fever after taking the flu vaccine |
| D．it is possible that some people might get the flu from the flu shot |
| A．they’ll be allergic to eggs |
| B．their bodies will ache for 5 days |
| C．they probably have a low fever |
| D．they won’t catch a flu ever after |
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科目：高中英语 来源： 题型：阅读理解
Life in space will certainly take some getting used to！But the space station has been designed to keep the astronauts as comfortable as possible—the modules(舱) are roomy，bright，and kept at a constant 70 degrees Fahrenheit.It’s important the crew members are comfortable because they’ll be busy aboard the station.In a typical workday，crew members will spend 14 hours working and exercising,1.5 hours preparing and eating meals，and 8.5 hours sleeping.Here are some other fun facts about life aboard the station：
Food
Come mealtime，astronauts will have a special dining kitchen.Space food just keeps getting better—and more like food we enjoy here on Earth.In early space missions，astronauts could eat only freezedried food that didn’t require any preparation.But the space station is equipped with water，microwave ovens，and refrigerators，allowing the folks on board to eat more “normal” types of food，including fruit，vegetables，and ice cream!
Sleep
Each crew member has a private room.With no gravity，they’ll need to tie themselves to their beds，or they will float away！That might sound like a strange way to sleep，but astronauts from past space missions report that sleeping in space is actually pretty great!
Exercise
You might not think it，but exercise is even more important on the station than it is on Earth.There is not much gravity in space.Astronauts don’t stand up，sit down or walk in space，so their muscles and bones don’t have to work much—and this muscle and bone loss can be dangerous back on Earth.To fight this，astronauts on the station will exercise on bikes，rowing machines，and other equipment about two hours every day.
Clothing
Astronauts will have to wear special space suits while traveling aboard the U．S.shuttle or Russian rockets.But once they’re safe inside the space station，crew members can wear regular clothing.Of course，a specially designed，pressurized space suit is required for space walks.It has to withstand(经受住) flying pieces and protect the astronauts from dramatic temperature changes.It can range from 120 degrees below Fahrenheit in the shadow of the station to 250 degrees in the hot sun.
Personal Cleanliness
Simple tasks like brushing your teeth can be challenging in a weightless environment.A little water doesn’t flow in a stream—it suspends in a bubble！Astronauts will use a freshwater hose(软管) to take showers，shampoo，and wash off—then a second vacuum hose to suction(吸) off the dirty water.And how do you go to the bathroom in space？With a special “air toilet” that uses flowing air instead of water to dispose of waste.
【小题1】The facts about life in space are all mentioned EXCEPT ________.
| A．clothing | B．entertainment |
| C．sleep | D．exercise |
| A．The temperature is quite different in different places in space. |
| B．Astronauts must wear special space suits all the time in space. |
| C．Astronauts can wear regular clothing for space walks now. |
| D．Astronauts wear pressurized space suits just to keep warm. |
| A．It can make astronauts feel relaxed in space. |
| B．It can help astronauts spend their spare time happily. |
| C．Astronauts’ lives are more important in space than on earth. |
| D．It can prevent astronauts from causing muscle and bone loss. |
| A．Astronauts could eat apples in space in the past. |
| B．Astronauts eat only fruit，vegetables and ice cream now. |
| C．Fresh food isn’t available to astronauts in space. |
| D．Space food is getting better now than before. |
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科目：高中英语 来源： 题型：阅读理解
Across the United States, universities and colleges have been looking to become more sustainable (可持续发展的) and more than 600 schools have already planned to become eco-friendly. The EcoDorm, home to 36 students at Warren Wilson College in Swannanoa, was designed to be sustainable from top to bottom, or in this case, from its rainwater-collection system to its garden. The dormitory is bringing new meaning to the concept of living “green” at college.
At Warren Wilson College, a biological science school with fewer than 1,000 students, the sustainability drive came from the student body. The EcoDorm concept was presented ten years ago by two students; a planning committee firstly suggested using building materials like corncob. Although the architects disagreed with the idea, they came up with other creative solutions: Wood siding was taken from the trees grown in the school yard that were suffering from a disease, and rainwater was collected in an old railway car and pumped back into the house to clean the toilets.
All in all, the dorm uses nearly two-thirds less electricity than a similar-sized traditional building would. But even the most sustainable homes need continued efforts from its livers. And in the case of EcoDorm, students live by their words. Most also take advantage of the dorm’s bio-garden, planting and harvesting fruits and vegetables. “I didn’t have to worry about paper towels being wasted or feel bad about drying my clothes outside,” Jeremy Lekich, the dorm’s gardener, said. “Basically, it has made my life easier.”
【小题1】We can learn from the text that the EcoDorm in the US .
| A．offers students the chances to have a natural living at college |
| B．was firstly built by two college students |
| C．was designed for saving building materials |
| D．is only applicable in few schools |
| A．where the EcoDorm was built |
| B．when the EcoDorm got its name |
| C．what the EcoDorm is made of |
| D．how the concept of EcoDorm started |
| A．It helps students to enjoy life at college. |
| B．It saves a lot of money and energy for the college. |
| C．It makes students study harder. |
| D．It brings new energy to the college. |
| A．A long-term development calls for students’ efforts. |
| B．Students’ ideas should be encouraged at college. |
| C．Green living is a new trend at American colleges. |
| D．Students can learn to protect the environment through practice. |
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科目：高中英语 来源： 题型：阅读理解
It's going to be a chaotic(混乱的)day. How do I know? It’s Monday. OK, joking. But, I do predict that today will be filled with the normal last-minute tasks, fire drills, and unforeseen events. So, how do you keep yourself from being swept away in the stream of chaos? How do you remain calm while others are rushing and panicking? There's a problem… Panic! When things don't go as planned, how do you react? Are you the calm one who works to fix things? Or the one running around like Chicken Little screaming that the sky falling? Getting upset or alarmed can seem like natural reactions to a problem.
Here are a few tips to kelp you remain calm in the face of the storm:
? Don't Panic You are better able to find a solution if you aren't panicking. If you can keep your head when others are losing theirs, you will be able to make a dear decision in the chaos.
? There Aren't Many True Emergenaes My time as a Naval Officer taught me about true emergencies. In the military, when there is a problem, people can get hurt or die. This is not usually the case when the office copier or email server goes down. Keep things in perspective. There are very few true emergencies in life.
? Avoid the "Fight or Flight" When you are stressed, your body will want to go into "fight or flight." Your body was designed to keep you safe from danger, but its natural reflexes aren't always the best solution against a project gone away. Keep your emotions in check and ensure that your physical reflexes don’t make bad decisions for you.
? Head Into The Problem While everyone else is running away, true leaders walk into a problem. Sticking your head in the sand only makes things worse. Instead of trying to ignore the situition, get to the heart of the issue as soon as possible. Only then can you address it
How Will You React? When you find yourself ready to lose it, take a step back. Ask, "In this truly an emergcncy?" Keep your head when others are losing theirs. And you'll find that you are that much closer to a solution.
【小题1】The author writes the first paragraph in order to______.
| A．describe a chaotic day | B．advocate a way of life | C．introduce a topic | D．make a joke |
| A．low your head | B．keep your head | C．shake your head | D．stick your head |
| A．there are seldom true emergencies in life |
| B．there are many true emergencies in life |
| C．some emergencies are really urgent |
| D．some emergencies can't be predicted |
| A．Fight or Flight |
| B．True emergencies |
| C．Less Talking, More Doing |
| D．Keep calm in the face of the storm |
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科目：高中英语 来源： 题型：阅读理解
New crime prediction software should reduce not only the murder rate, but the rate of other crimes. Developed by Richard Berk, a professor at the University of Pennsylvania, the software has already used in Baltimore and Philadelphia to predict which individuals on probation(缓刑) or parole(假释) are most likely to murder and to be murdered.
“When a person goes on probation or parole he is supervised(监督) by an officer. The question is ‘what level of supervision is appropriate?’” said Berk. It used to be that parole officers used the person’s criminal record, and their judgment to make decisions.
“This research replaces those seat-of-the –pants calculations,” he said.
Technology helps determine level of supervision. On average there is one murder for every 100,000 people. Even among high-risk groups the murder rate is one in 100. Predicting such a rare event is very difficult, but advances in computer technology works.
Years ago, the researchers made a dataset of more than 60,000 various crimes. Using the software they developed, they found some much more likely to commit murder when paroled or probated. They could identify eight future murderers out of 100.
Berk’s software examines roughly two dozen variables(可变因素), from criminal record to geographic location. The type of crimes, and more importantly, the age at which that crime was committed, were two of the most predictive variables.
“People assume that if someone murdered then they will murder in the future,” said Berk. “ What really matters is what that person did as a young individual. Predicting future crimes sounds well. But we aren’t anywhere near being able to do that.”
“Berk’s scientific answer leaves policymakers with difficult questions. By labeling one group of people as high risk, and supervise them closely, there should be fewer murders, which the potential victims should be happy about. It also means that those high-risk individuals will be supervised more aggressively. For human rights advocates, that means punishing people who, most likely, will not commit a crime in the future,” said Bushway. “It comes down to a question of whether you would rather make these errors or those errors.”
【小题1】The underlined words(in Para.3) probably mean___.
| A．calculations based on subjective opinions |
| B．calculations based on widespread voting |
| C．calculations made by advanced technology |
| D．calculations based on serious considering |
| A．6.5. | B．13. | C．52. | D．65. |
| A．the technology developed by Richard Berk will soon be widely used in the US |
| B．the technology would not be widely accepted in the short term |
| C．whether a person murders or not largely decided by his upbringing while young |
| D．if a person murdered when he was fifty, he is sure to murder again while on probation |
| A．positive | B．negative | C．objective | D．indifferent |
| A．Closely Supervise Potential Murders |
| B．Measures Taken to Prevent Criminal Behavior |
| C．Technology Revolutionizes Judges’ Way of Working |
| D．Software is Developed to Predict Criminal Behavior |
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