I’ve always known my kids use digital communications gear (装置) a lot.But my cellphone bill last month really grabbed my attention.My son had come up to nearly 2,000 incoming text messages，and had sent nearly as many.Of course，he was out of school for the summer and communicating more with friends from a distance.Nevertheless，he found time to hold down a summer job and complete a college course in between all that typing with his thumb.
I was even more surprised to learn that my son is normal.“Teenagers with cellphones each send and receive 2,272 text messages a month on average，” Nielsen Mobile says.
Some experts regret that all that keyboard jabber is making our kids stupid，unable to read nonverbal cues such as facial expressions，gestures，posture and other silent signals of mood and attitude.Unlike phones，text messaging doesn’t even allow transmission of tone of voice or pauses，says Mark Bauerlein，author of a book called The Dumbest Generation：How the Digital Age Stupefies Young Americans and Jeopardizes Our Future.
Beyond that，though，I’m not sure I see as much harm as critics of this trend.I’ve posted before on how I initially tried to control my kids’ texting.But over time，I have seen my son suffer no apparent ill effects，and he gains a big benefit，of easy，continuing contact with others.
I don’t think texting make kids stupid.It may make them annoying，when they try to text and talk to you at the same time.And it may make them distracted，when buzzing text messages interrupt efforts to noodle out a math problem or finish reading for school.
But I don’t see texting harming teens’ability to communicate.My son is as accustomed to nonverbal cues as any older members of our family.I have found him more engaged and easier to communicate with from a great distance，because he is constantly available via text message and responds with faithfulness and speed.
【小题1】What does the underlined word “distracted” in the fifth paragraph mean?
| A．Confused. | B．Absentminded. |
| C．Comfortable. | D．Badtempered. |
| A．For Teens，Texting Instead of Talking |
| B．For Parents，Caring Much for Their Kids |
| C．Advantages and Disadvantages of Texting |
| D．The Effect of Communication |
| A．objective | B．opposed |
| C．supportive | D．doubtful |
| A．It is normal for a teen to send or receive 60 text messages a day. |
| B．Texting is a very popular way of communication among teens. |
| C．When texting，teens never mind talking with others. |
| D．The writer limited his son to send or receive text messages at first. |
【小题1】B
【小题2】A
【小题3】C
【小题4】C
解析【小题1】 B
解析 词义猜测题。文章倒数第二段最后一句指出，手机信息的响声会在他们试图去解数学题或读完阅读材料时打扰他们，所以手机信息的响声会令他们“分心”。
【小题2】 A
解析 主旨大意题。文章通过第一段作者讲述自己的儿子用手机发短信的事引出全文，所以全文主要讲述的是青少年通过收发短信与人沟通，所以正确答案为A项。
【小题3】 C
解析 细节理解题。依据文章倒数第二段第一句“我不认为发短信会使小孩变笨”和最后一段第一句“我没有发现短信会损害青少年的沟通能力”可知，作者对小孩使用手机发短信持支持态度。
【小题4】 C
解析 细节理解题。由文章倒数第二段第二句可知，有时候孩子讨厌边发短信边和他人说话。
科目：高中英语 来源： 题型：阅读理解
Going green is something that affects every single one of us. Whether by recycling those plastic water bottles, or by cutting down on electricity in your home, the importance of going green on a personal level is extremely important. But, when you’re a millionaire NBA basketball star, how do you help out the environment?
Yao Ming is a basketball player that plays for the Houston Rockets and has spoken out against hunting of sharks for fins, a delicious food in his native China. He is also the United Nations’ Environmental champion. His goal is to raise awareness of climate change and energy-saving. “I will work with young people across the world and try to inspire them to plant trees, harvest rainwater and to become environmental champions in their own communities.”
The Philadelphia Eagles, a professional American football team, are really doing their part to give back to the community. The Eagles Go Green page has a “Green Energy Calculator” and according to the web site fans have saved $ 73,674.90 a year and saved 666,320 pounds of CO2 per year. Also, the Eagles have set up a “Stop global warming virtual march（虚拟游行）on Washington”, a march across America for one year, through the Internet with a goal to bring fans together and to urge leaders to deal with the serious problem of global warming now.
Bob Burnquist, a Brazilian skateboarder, is a member of Action Sports Environmental Coalition and founder of a program that gets organic foods and farming into schools for healthy lunch programs. Bob also has a huge homegrown organic farm where he hosted a gathering in celebration of Earth Day.
Kelly Slater is a surfer and eight-time champion, but he also supports saving the coral reefs world wide. He has founded the Kelly Slater Invitational Competition which raises funds and awareness for Reef Check, which is able to get its message out to a large group of guests including professional surfers, film and music stars, and other famous people.
【小题1】According to the passage, Yao Ming wants to ________.
| A．help the Houston Rockets win the NBA championship |
| B．ask the United Nations to protect sharks in China |
| C．encourage young people to care about the environment |
| D．train more young people to become players of NBA |
| A．They have called on fans to do things to reduce global warming. |
| B．They have marched on Washington to bring fans together. |
| C．They have saved $ 73,674.90 for solving global warming. |
| D．They have reduced CO2 emission by 666,320 pounds per year. |
| A．Bob Burnquist created Earth Day. |
| B．Bob Burnquist eats only organic foods. |
| C．Kelly Slater donated a lot of money. |
| D．Kelly Slater held a competition. |
| A．Highly Competitive Athletes |
| B．Environment-friendly Athletes |
| C．World-famous Athletes |
| D．Millionaire Athletes |
| A．Only famous people need to care about environmental problems. |
| B．America is the country that takes best care of environment. |
| C．Environmental problems have a common effect on everyone of us. |
| D．Yao Ming’s goals to raise people’s awareness of environment are mainly about climate change and air pollution. |
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科目：高中英语 来源： 题型：阅读理解
Hello! My name is Lisa, and I am a lioness. I live on the open grasslands of Africa with my family. Lions living in a group are called a pride.
My father is strong and powerful. He and his cousin are the leaders of our pride. The other members are my mother, her sisters, and their children.
The area where a pride lives is big! We roar (咆哮) to tell each other where we are and to warn strangers to stay away.
Meet my new baby brother. His name is Leon. See the spots on his fur? We lions are born spotted or striped (有条纹的). As we grow older, the spots gradually disappear.
Lionesses usually spend their entire lives with their birth pride, but Leon will leave when he is about three years old. He’ll run around with a male (雄性的) friend or relative for a few years until they take over a pride of their own.
But for now, we have lots of fun together. We often play and fight for hours, which can help us practice skills that we will need for hunting.
We lions keep ourselves very clean. Just like a house cat, I clean my fur (毛) with my tongue. We clean for each other, too, to show we’re friends.
Lions like to sleep for most of the day. We hunt in the cool evening. Female (雌性的) lions hunt more often than male lions. We work together as a team. At the right moment, we attack and kill our prey. Then we share it. Male lions usually eat first. Females eat next. Baby lions are the last to eat. The smallest one gets the least food.
Since we are full, it’s time to go to find a nice place for a sleep. Bye!
【小题1】According to the passage, Leon _____.
| A．hunts more often than his sisters |
| B．will have spots on his fur for the whole of his life |
| C．will leave his birth pride when he is about three |
| D．will take over his birth pride when his father dies |
| A．the animal that is hunted |
| B．the animal that is dangerous |
| C．the animal that is powerful |
| D．the animal that is ill |
| A．Lions sometimes clean their fur for each other. |
| B．Lions also develop their skills of hunting by having fun. |
| C．Lions in Africa usually hunt for food in the evening. |
| D．Baby lions are often the first to get food in their group. |
| A．doctors | B．tourists | C．children | D．hunters |
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科目：高中英语 来源： 题型：阅读理解
Why do human beings still risk their lives under ground and doing one of the dirtiest and most dangerous jobs in the world？It’s an increasingly urgent question，given the recent highprofile(引人注目的) mining accidents in Sago，W.Va.and Huntington，Utah.A small group of engineers and robotics experts look forward to a day in the nottoodistant future when robots and other technology do most of the dangerous mining work.
Robotic technology，in particular，holds much promise，McAteer says，especially when it comes to mapping mines and rescuing trapped miners—the special operations of the mining industry.
One of the first mining robots was developed five years ago at CarnegieMellon University’s Robotics Institute.It was called Groundhog and it looked like a golf cart.It used lasers(激光器) to “see” in dark tunnels and map abandoned mines—some of the most dangerous work in the business.
The latest design is called Cave Crawler.It’s a bit smaller than Groundhog，and even more advanced.It can take photos and video and has sensors mounted(增加) that can detect the presence of dangerous gases.Incredibly，the robot has a real sense of logic.If it comes across an obstacle it gets confused.It has to think through the process and where to go next，and sometimes it throws_a_fit just like a real person.
The biggest obstacle，though，is cost.The original research project was federally funded，but that money has dried up，and it’s not clear where future funding will come from. Partly for that reason，and partly because of advances in safety，mining is not nearly as dangerous as it was in the past.Since 1990，fatalities(致命性) have declined by 67 percent and injuries by 51 percent，according to the National Mining Association.
Some experts predict that robots in mines will serve much of the same function that they do in the automotive industry.The robots do the most repetitive and dangerous jobs，but don’t eliminate(消除) the need for human workers.
【小题1】The underlined phrase “throws a fit” in Paragraph 4 probably means “________”．
| A．gets angry | B．gets sick |
| C．becomes hungry | D．becomes cheerful |
| A．robots in mines will serve much in the automotive industry |
| B．there will be no need for human workers in mines |
| C．the mine robots will have a very bright future |
| D．robots in mines have a long way to go |
| A．Mining robots do most of the mining work at present. |
| B．Groundhog can discover the presence of dangerous gases. |
| C．Experts are trying to make robots save miners in danger. |
| D．Robots cannot do dangerous work in dark areas. |
| A．Mining Accidents in America |
| B．Could Robots Replace Humans in Mines? |
| C．Cave Crawler，the Latest Robot |
| D．The Development of Robots |
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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
Against the supposition that forest fires in Alaska，Canada and Siberia warm the climate，scientists have discovered that cooling may occur in areas where burnt trees allow more snow to mirror more sunlight into space.
This finding suggests that taking steps to prevent northern forest fires to limit the release of greenhouse gases may warm the climate in northern regions.Usually large fires destroyed forests in these areas over the past decade.Scientists predict that with climate warming，fires may occur more frequently over the next several centuries as a result of a longer fire season.Sunlight taken in by the earth tends to cause warming，while heat mirrored back into space tends to cause cooling.
This is the first study to analyze all aspects of how northern fires influence climate.Earlier studies by other scientists had suggested that fires in northern regions sped up climate warming because greenhouse gases from burning trees and plants were released into the atmosphere and thus trapped heat.
Scientists found that right after the fire，large amounts of greenhouse gases entered the atmosphere and caused warming.Ozone (臭氧) levels increased，and ashes from the fire fell on faroff sea ice，darkening the surface and causing more radiation from the sun to be taken in.The following spring，however，the land within the area of the fire was brighter than before the fire，because fewer trees covered the ground.Snow on the ground mirrored more sunlight back into space，leading to cooling.
“We need to find out all possible ways to reduce the growth of greenhouse gases in the atmosphere，” scientists said.They tracked the change in the amount of radiation entering and leaving the climate system as a result of the fire，and found a measurement closely related to the global air temperature.Typically，fire in northern regions occurs in the same area every 80 to 150 years.Scientists，however，found that when fire occurs more frequently，more radiation is lost from the earth and cooling results.Specifically，they determined when fire returns 20 years earlier than predicted,0.5 watts per square meter of area burned are soaked up by the earth from greenhouse gases，but 0.9 watts per square meter will be sent back into space.The net effect is cooling.Watts are used to measure the rate at which energy is gained or lost from the earth.
【小题1】According to the new findings，taking steps to prevent northern forest fires may________.
| A．result in a warming climate |
| B．cause more forest fires |
| C．lead to a longer fire season |
| D．protect the forests there |
| A．large amounts of greenhouse gases enter the atmosphere |
| B．the levels of ozone which is a type of oxygen increase |
| C．snow on the ground mirrors more sunlight back into space |
| D．ashes from the fire fall on the ice and darken the surface |
| A．had analyzed all aspects of how northern fires influenced climate |
| B．had indicated that forest fires would pollute the atmosphere |
| C．had suggested that people should take measures to protect environment |
| D．had suggested that the fires would speed up climate warming |
| A．warm the climate as the supposition goes |
| B．cool the climate by reflecting more sunlight into atmosphere |
| C．make more space for the growth of young trees |
| D．help to gain more energy rather than release more energy |
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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
Have you ever dreamed of visiting a planet in the Milk Way? While the trip sounds exciting, it would take years and years to reach your destination. So in the future, bedtime for astronauts may be more than a few hours of regular shut-eye. They would have to sleep for years.
European researchers are now conducting hibernation experiments. The study may help them understand whether humans could ever sleep through the years it would take for a space flight to distant planets. "If there was an effective technology, it could make deep-space travel a reality," said Mark Ayre of the European Space Agency last month.
What seems like science fiction is not completely unlikely. Researchers have been able to use chemicals to put living cells into a sleep-like state where they don't age. They have now moved on to small, non-hibernating mammals like rats. The results will be out by the end of 2004.
A major challenge is the fact that cells can be very simple systems, whereas body organs are far more complex.
"It's like moving from a simple Apple computer to a supercomputer," said Marco Biggiogera, a hibernation researcher at Italy's University of Pavia.
Just like bears and frogs, the hibernation of human beings would cause a person's metabolism (新陈代谢) to lower so they would need less energy.
Medical research, however, is just half of a space flight hibernation system.
There is the challenge of designing a suitable protective shelter. Such a shelter would provide the proper environment for hibernation, such as the proper temperature. It would also have to monitor (监控) life functions and serve the physiological needs of the hibernator.
According to Ayre, the six-person Human Outer Planets Exploration Mission to Jupiter's moon (木星的卫星) Callisto, could be an opportunity to use human hibernation. The mission aims to send six humans on a five-year flight to Callisto, where they will spend 30 days, in 2045.
【小题1】European researchers are conducting hibernation experiments to ________.
| A．ensure astronauts to get a complete sleep |
| B．find the secret of some creatures |
| C．make preparations for the journey to Jupiter’s moon Callisto |
| D．know if man can sleep for years |
| A．Science fiction is people’s imagination. |
| B．Science fiction is imaginative, but it can be realized. |
| C．Things seem impossible may come true. |
| D．Things described in science fiction are sure to become true. |
| A．putting living cells into a sleep-like state is full of failure |
| B．Biggiogera is confident with the experiment |
| C．human’s hibernation needs no energy |
| D．medical research is the key to space flight hibernation system |
| A．Six humans to fly to Callisto |
| B．Human hibernation improves health |
| C．Space travel attracts people |
| D．Deep sleep for deep space travel |
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科目：高中英语 来源： 题型：阅读理解
The extraordinary Eastgate Building in Harare, Zimbabwe’s capital city, is said to be the only one in the world to use the same cooling and heating principles as the termite mound(白蚁堆).
Architect Mick Pearce used precisely the same strategy when designing the Eastgate Building, which has no air-conditioning and almost no heating. The building—the country’s largest commercial and shopping complex—uses less than 10% of the energy of a conventional building of its size. The Eastgate’s owners saved $3.5 million on a $36 million building because an air-conditioning equipment didn’t have to be imported.
The complex is actually two buildings linked by bridges across a shady, glass-roofed atrium(天井) open to the air. Fans suck fresh air in from the atrium, blow it upstairs through hollow spaces under the floors and from there into each office through baseboard vents(通风口). As it rises and warms, it is drawn out via ceiling vents and finally exists through forty-eight brick chimneys.
During summer’s cool nights, big fans blow air through the building seven times an hour to cool the empty floors. By day, smaller fans blow two changes of air an hour through the building, to circulate the air which has been in contact with the cool floors. For winter days, there are small heaters in the vents.
This is all possible only because Harare is 1600 feet above sea level, has cloudless skies, little dampness and rapid temperature changes—days as warm as 31℃ commonly drop to 14℃ at night. “You couldn’t do this in New York, with its hot summers and cold winters,” Pearce said.
The engineering firm of Ove Arup&Partners monitors daily temperatures. It is found that the temperature of the building has generally stayed between 23℃ and 25℃, with the exception of the annual hot period just before the summer rains in October and three days in November, when a doorkeeper accidentally switched off the fans at night. And the air is fresh—far more so than in air-conditioned buildings, where up to 30% of the air is recycled.
【小题1】Why was Eastgate cheaper to be built than a conventional building?
| A．It was designed in a smaller size. |
| B．No air conditioners were fixed in. |
| C．Its heating system was less advanced. |
| D．It used rather different building materials. |
| A．Fresh air from outside. | B．Heat in the building. |
| C．Hollow space. | D．Baseboard vent. |
| A．New York has less clear skies as Harare. |
| B．Its dampness affects the circulation of air. |
| C．New York covers a larger area than Harare. |
| D．Its temperature changes seasonally rather than daily. |
| A．allows a wide range of temperatures |
| B．functions well for most of the year |
| C．can recycle up to 30% of the air |
| D．works better in hot seasons |
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