Тренажёр ЕГЭ Английский язык

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Last year’s A-levels maths results show that …

1. more girls take the subject.

2. girls do better than boys.

3. boys get more A grades.

4. boys are more likely to fail.

Women and the maths problem

Women's underachievement in maths may not be due to their poor self-image in the subject, a new report suggests. Researcher Dr. Gijsbert Stoet at the University of Leeds says that the so-called "stereotype threat" theory   which holds that women perform worse than men because they expect to do badly   "does not stand up to scrutiny".

Earlier research had serious flaws, he says, with improper use of statistical techniques and methodology. Clearly, those who carried out this research need to review their own competence in maths. Stoet believes the gender gap may simply be that men and women have different interests from an early age, and says the answer to getting more women into maths and engineering is probably a matter of motivation.

According to last year's results, even though girls perform as well as boys in their maths GCSEs, 60% of A-levels in the subject are taken by boys, who achieve 60% of grade As.

I am an engineer, who has worked in the chemical industry for most of my working career. When I graduated in the 80, I assumed we were at the start of a new era for women in science: I studied alongside intelligent and motivated women, opportunities seemed aplenty, in-roads had been made.

But 20 years down the line, only 8.7% of British engineers are women, the lowest proportion in Europe, compared with 25% in Sweden. So what has happened?

One of the main problems is that careers in science, technology, engineering and maths (known as Stem) are not sufficiently promoted in schools, with fewer children taking up these subjects at GCSE and A-level. Year in, year out, we are told that Britain has a skills shortage. The general lack of interest among schoolchildren in maths and science subjects, together with the underlying social conditioning that still remains   that science subjects "aren't really for girls"   has led to a double-whammy effect, reducing female entrants even further.

Over the past few years, I have been involved in Stemnet, an organization dedicated to promoting these careers by getting people who work in jobs from biologists to builders to talk to schoolchildren about what they do. It's an attempt to debunk the myth that maths and sciences are too difficult or too boring. I was amazed to see hundreds of schoolboys and girls at a recent event at the ScienceMuseum, presenting a range of experiments and projects they had prepared. And the ones prepares by girls were equally challenging and sophisticated.

I agree with the new study that rather than focusing on the problems of stereotyping, we should devote more time to encouraging girls into science and technology: they clearly respond.

But encouraging schoolgirls into university and careers is not all. As is typical in most sectors, I see a number of female engineers at the entry and mid-levels of companies, but precious few at the top. This is a huge waste of talent. It also raises the issue of certain professional inequality and a biased attitude towards women. The report has done well to challenge the myths behind women's underachievement in schools, but more work still needs to be done to address the problem of women's lack of achievement in the workplace. At least in the spheres closely related to science and engineering.

What is the author complaining about mentioning the landscapers?

1. The noise they make.

2. The quality of their work.

3. The size of the yards.

4. The plants they tend to.

Lazy summer days vs. landscapers

Whether you’re a first grader proud of the fact you survived your first year of full-day education or a grad student desperate for a study break, summer vacation means one thing to everybody: sleeping in on weekday mornings. There is no alarm to hit at 6:30 and no bus to chase after. And while days might be filled with summer jobs and day camp, those never seem to start quite as early.

So why is there a conspiracy working against students the minute the final bell rings and the last exam is turned in? And the culprit is visible in any given apartment complex, condo community or public park: landscapers.

I have lived in many towns and in homes of different shapes and sizes in my short, 23 years on Earth. And yet, no matter where I call home, I am faced with the same hardship: trying to sleep in on lazy, summer mornings while the lawn mowers are hard at work on public and private yards.

The townhouse neighborhood I called home when I was a little girl was a jam-packed street. We had more than 250 houses on my block alone. One of the things my mom loved about that house was its tiny yard.

My mother does not have a green bone in her body. She has killed every herb garden my sister and I have ever given her. So my mother was thrilled that our front yard was the size of a postage stamp. It, like every other yard on the block, only needed to be trimmed once a month to look good. And yet, every Monday and Thursday at 7:30 a.m., the city-contracted landscaping team would drive down our street and unload two or three industrial mowers and go to work on the little patches of public grass around mail boxes and trees.

Later, when I moved to Michigan, my family and I lived in a condominium complex our first year. As part of the deal, every yard was landscaped with big bushes and tulip patches. But to keep the yards all looking nice and healthy, the owners had full-time landscapers keep up with the maintenance. My mother was thrilled to have a full garden without worrying about killing each plant one by one.

Never having to before, I was thrilled I didn’t have to mow this new yard that was 100 times bigger than the postage stamp one we had before. But I was not so thrilled when the mowers showed up on Saturday mornings. Saturdays! Were they serious? Mowing every yard on the street starting at 7 a.m. on a Saturday.

As an adult out on my own, I like that apartments don’t come with yards I have to maintain. I am just getting the hang of remembering to buy groceries and having my own mailbox to check. If I had to add watering flowers to my to-do list, I would forget. But what I’m not so thrilled about is that Friday mornings is my building’s scheduled mowing day. I live on the first floor of my building, with no way to muffle the roar of the mower against the side of the building when it is directly outside my window. No sleep for me.

I am not so selfish that I don’t understand why mowers work in the morning. Landscapers have multiple customers to serve on any given day, and the earlier they start the earlier they can be done. Plus, it is cooler in the morning, and preferable, rather than at noon when the sun is high in the sky. But students work hard all year and look forward to a break from books, tests and alarm clocks.

So, in order to find a common ground between landscapers and students, I send this challenge out into the universe: whoever can build a silent lawn mower will get my undying gratitude, love and affection and whatever else they want, I promise!

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According to the research, just about … percent of people have the recommended number of sleeping hours.

1. forty

2. twenty

3. thirty

4. ten

Chronic lack of sleep affects one in three British workers

One in three British workers suffers from poor sleep, research shows, with stress, computers and taking work home blamed for the lack of quality sleep. Some employees get fewer than five hours sleep a night, only one in seven feels completely refreshed when they wake and more women have poor shut-eye than men. The alarming findings emerged from a study of self-assessments completed by 38,784 staff working in the UK for firms such as telecoms firm, O2, drugs developer, Quintiles and medical technology manufacturer, Medtronic.

A third were dissatisfied with the amount and quality of their sleep, with 8.4% saying they were "very unhappy" with it, and another 24.4% describing themselves as "unhappy". When asked how they felt 30 minutes after getting up, only 15.5% said "refreshed". Of the others, 3.3% said they were "exhausted", 24% said "unrefreshed" and 57.2% were still "a little tired".

While experts say that everyone should ideally get seven to eight hours sleep a night, only 38.5% of the 38,784 respondents did so. More had between five and seven hours (45%), only a lucky 10% reported sleeping for eight to nine hours and one in 100 enjoyed more than nine hours.

When researchers combined those results to give each respondent an overall "sleep score" out of 100, some 33.8% got a mark of less than 30 – the lowest category. That means someone either has, or is at high risk of developing, a sleeping problem. "This research is telling us that a large number of working adults, one in three in the UK, has a sleeping problem," said Dr Tony Massey, medical director of Vielife, the health and productivity firm that carried out the assessments between 2009 and 2011. "A very concerning number of British workers get too little sleep." Britain is near the top of an international league table for lack of sleep. A Vielife study of 116,452 staff in America found that 23.4% scored poorly for sleep.

The extent of inadequate rest has prompted fears that many people are too tired to do their jobs properly, with some so sleep-deprived their brains are as confused as if they had consumed too much alcohol.

"Too few people practice sleep hygiene," said Massey. "That involves little things that people can do without professional help, like ensuring your room is dark and quiet, getting to bed at the same time every night – just like a two-year-old – reading a book, which is a proven relaxant, and not looking at bright screens, such as the TV or computer, for an hour before you go to bed as that will disturb your sleep."

The growing tendency for employees to do extra work in the evenings and at weekends, which may have risen in the recession, also seems to be linked to poor sleep. "More people are scrunching the golden hour before they go to sleep, and they are paying the price in that their sleep isn't refreshing and they end up in a vicious cycle of fatigue, poor productivity and then feeling that they have to do the same again the next day to compensate," said Massey.

The best guarantee of good quality shut-eye is to work five days a week and sleep seven to eight hours a night. Five-days-a-week staff had the best sleep score, while those getting seven to eight hours a night scored 72.7.

"These are very worrying findings because lack of sleep is a risk factor for a whole range of serious health problems, such as stroke and heart disease," said Massey.

13. Who is supposed to know the Coke secret recipe nowadays?

1) Certain Coca-Cola executives.

2) A broadcaster.

3) The director of Atlanta Sun Trust Bank.

4) RR Evans.

For almost 125 years, the secrecy surrounding the recipe for Coca-Cola has been one of the world’s great marketing tricks. As the story goes, the fizzy drink’s famous ‘7X’ formula has remained unchanged since it was developed in 1886. Today, the recipe is entrusted only to two Coke executives, neither of whom can travel on the same plane for fear the secret would go down with them.

Now, one of America’s most celebrated radio broadcasters claims to have discovered the Coke secret. Ira Glass, presenter of the public radio institution This American Life, says he has tracked down a copy of the recipe, the original of which is still supposedly held in a burglar-proof vault at the Sun Trust Bank in Atlanta, Georgia.

The formula was created by John Pemberton, an Atlanta chemist and former Confederate army officer who crafted cough medicines in his spare time. In 1887, he sold the recipe to a businessman, Asa Griggs, who immediately placed it for safekeeping in the Georgia Trust Bank.

Glass came across a recipe that he believes is the secret formula in a back issue of Pemberton’s local paper, the Atlanta Journal-Constitution, while he was researching an entirely different story. Tucked away on an inside page of the 8 February 1979 edition, he stumbled on an article that claimed to have uncovered the closely guarded 7X formula.

The column was based on information found in an old leather-bound notebook that belonged to Pemberton’s best friend and fellow Atlanta chemist, RR Evans. Glass was intrigued and, after some digging, found that the notebook had been handed down over generations until it reached a chemist in Georgia called Everett Beal, whose widow still possesses it.

The rediscovered recipe includes extract of coca leaves, caffeine, plenty of sugar (it specifies 30 unidentified units thought to be pounds), lime juice, vanilla and caramel. Into that syrup, the all-important 7X ingredients are added: alcohol and six oils –orange, lemon, nutmeg, coriander, neroli and cinnamon. The formula is very similar to the recipe worked out by Mark Pendergrast who wrote a history of the drink in 1993 called For God, Country & Coca-Cola.

Coke’s secret recipe is, in fact, partly a myth. The soda has changed substantially over time. Cocaine, a legal stimulant in Pemberton’s day, was removed from the drink in 1904 after mounting public unease about the drug. Extract of coca leaves is still used but only after the cocaine has been removed.

In 1980, the company replaced sugar, squeezed from beet and cane, with the cheaper corn sweetener that is often found in American food and drink. Coke fans were not impressed.

Despite such occasional controversies, one element has remained constant: Coke’s commitment to keeping its own secret. Speculation about the recipe has been a popular talking point for more than a century, proving good for business. The company has reacted to the This American Life story in a way that has been typical of its commercial strategy since the 19^th century. “Many third parties have tried to crack our secret formula. Try as they might, they’ve been unsuccessful,” Coca-Cola’s Kerry Tressler said.

The time for the author “was never right” because …

1) there always was an excuse not to do something.

2) he wanted to act according to a plan.

3) his travels were poorly organized.

4) he was afraid of new experiences.

I’ve spent the last year wandering around the globe and exploring this wondrous thing called life. Through 26 flights, I’ve managed to circle the globe twice, and touch 5 of the 7 continents. It’s been an incredible experience. The journey led me from scuba diving for a month in Thailand to hitchhiking in African country. I’ve learned about the world and myself more than any book, teacher or person could tell me.

I’ve learned that the timing will never be perfect because rarely are we blessed with the perfect time to do something. When I was planning on leaving to travel for a year, it was never the “right time” when everything was going to be put on hold for my travels. I needed more money, or I would lose my job. I realized that I was never going to be “ready” to drastically change my life, as I was always going to have some new commitment or excuse. So I left at the “wrong time” in life and it turned out to be the best thing that happened to me. But once I got sick of missing out on things I wanted to do and see, I started to just do them anyway.

I’ve also learned that friendships are everything. I heard this one a lot before, but never really believed it that much. When I started looking back on my travels, I started to think “Wow, I’ve seen a heck of lot of cool places”. I tried to think back to my favorites, which ones did I enjoy the most? They were always the ones where I had the best friends and really had nothing to do with where I was. The people around you contribute a great deal to your overall happiness. It was only when I had no friends that I realized their importance.

When travelling, you have complete freedom to literally do anything you want. You can relax everyday on the beach, you can be alone every day in your room, you can eat ice cream for breakfast every day, and you can drink all the time. This freedom can be quite liberating, but many people have a tough time balancing the party/drinking/vacation aspect with truly seeing and experiencing each country, because you have no responsibilities and no one around to tell you when you can’t do something. I too fell into a similar kind of trap. I indulged in so many aspects of life. I took everything to the extreme until it had lost its excitement. I realized that balance was the key.

Another lesson I have learned is that life doesn’t have to be “normal”. Go to school, get a job, or buy a big house. When anyone strays from this path they are considered to be not “normal”. It’s only when I started traveling that I saw that a fulfilling and happy life isn’t always a respectable job, with a big house and lots of money. I began to meet interesting characters from all over the world and saw firsthand how they had gone “against the grain” and succeeded. There are tons of other ways to live a fulfilling and happy life, but most of us have only seen the “big house” scenario. I saw and experienced how happy people are doing something completely different than normal jobs, because they get to wake up every day and do what they want to do in the place they want to be.

So, while travelling I realized that you can read about things, watch them on TV, or hear stories from a friend, but nothing comes close to first-hand human experience. You get a whole new perspective on what really matters and you feel this sense of adventure and excitement that reminds you just how many possibilities you have in life. To anyone who has not travelled, do it. And to those who have, continue to do so. It will teach you more about yourself and the world around you than you could ever imagine.

13. At launch Todd was thoughtful because

1) he needed money for a trip.

2) he owned a lot of valuable things.

3) he wanted to pawn the watch, the ring, and the necklace.

4) he needed a new car to work.

Today was a rice day, fifty pound sacks of white rice in trucks bearing an elephant logo. The same happy elephant appeared on the bags, its head raised to the sky, the trunk curved like an S. ‘Elephant,’ Todd said. He said it because a labourer was staring at it intently, which meant he wasn’t working. ‘That’s right,’ the man said. ‘I couldn’t remember the word.’ He was the only other human at the loading dock this morning. The man didn’t have a name, just a number, like the rest of the robots.

That could be me, Todd thought as he watched him work side by side with his silent mechanical counterparts, lifting, carrying, and dropping bags of rice from the back of the truck to the warehouse. A bad car accident, a bad fall from a ladder, and that could be me. Or a bad memrip.

At lunch, Todd thought of things he could sell. Everything he owned of any value, he could touch: his grandfather’s watch, his grandmother’s wedding ring, a gold necklace be longing to some forgotten relative. His car, too, but that was out of the question as he needed it to work. He got up from his chair and scanned the floor below, the robots still working away, a sea of metallic shoulders rising and falling in unison, strangely beautiful in a way. Over by the forklift sat 8831, his eyes as blank as the piece of bread he was eating.

Two weeks from today was Todd’s thirtieth wedding anniversary, and even if he were to pawn the watch, the ring, and the necklace, he knew he wouldn’t even come close to having enough for Paris. That’s where Sue had wanted to go for as long as he could re member. They didn’t have the money to honeymoon there, but that was okay because back then, there had been plenty of time. They were young, both healthy and working, so they would save a little here and there and in a couple of years, they would be walking up to the Eiffel Tower at night arm in arm, find themselves underneath the arch and look up at the beacon that shines on this city of lights.

But then came two sons and three recessions and a second mortgage. A hysterectomy for her, a double bypass for him, and now here he was, nine years short of retirement, supervising a team of robots and a retarded man, thinking about folks who could sell things they couldn’t touch, like stocks and bonds and whatever else he couldn’t even fathom, people with money who would pay to experience another’s most cherished moments.

Silly. That would be Sue’s word for it if this were a story she’d overheard. For a trip, what a silly thing to do. But it was more than a trip. It was their life together. There was life and there was death, and it seemed to Todd that if he waited any longer, there wouldn’t be any difference between the two.

He opened the filing cabinet and rifled through the folders. Name: Lopez, Manny. Age: 46. Tax Status: Married. In all the years he’d been here, only a handful of human workers had come and gone. All of them were handicapped in some way; they came through the city welfare program, and 8831 was no exception.

Manny’s wife picked up on the second ring. Todd told her who he was, and after he assured her that her husband was not hurt, he was fine, he was a great worker, he asked her what he wanted to know. She listened without interrupting him; then there was a lengthy silence.

‘Why?’ she asked.

‘Does it matter?’

‘I can report you.’

‘I know.’ More silence.

‘He did it because he loved me. Loved,’ she said, hardening. ‘Not loves.’

‘I heard you.’

Then she hung up, and for the rest of the day, Todd replayed the conversation in his mind. Should he have lied to her, made up some story about a sick mother, a dying child? He wasn’t good at talking, especially on the phone. People thought he was unfriendly, hostile. A woman once told him his voice sounded like broken stones rattling in a cage.

The horn blared at five, time for the two humans to go home and the robots to be reconditioned and put in standby.

(Adapted from ‘Paris, at Night’ by Sung J. Woo)

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Leadership in college

    Everyone says it's important to get involved in college. Joining organizations and clubs helps college students feel more connected to their schools, build résumés, learn important life skills that may not be gleaned in lecture halls, and potentially meet some of their best friends.

    The minute I walked on campus to begin my freshman year, I knew I had to get involved in as many organizations as I could. In January, I began my position as a sisterhood director, which entailed planning events for my chapter, whether that is at our own chapter or out in the city community. I've hosted events such as essential-oil DIY parties, yoga classes, movie nights and senior send-off celebrations for our chapter members. I was very excited about the opportunity, and I knew that my previous leadership experiences would help me out. However, my perspective on what it means to be a leader among my peers has definitely changed after a semester of holding the position.

    There are three main components that I have learned through leadership: communication, organization, and delegation. I've learned that no matter how many times or in how many different ways you communicate a message, it will not get agross to everyone, and that is OK.

    People value transparency and sometimes need to be told exactly what you expect of them. Some people are so on top of schedules that they could tell you what's going on six months from now, but some people need constant reminders and do not keep track of their schedules. There is a gap in communication between these two types of people that can lead to frustration and disorganization on both ends.

    This past semester I have worked to bridge that gap between types of communicators, and that is one of the most valuable tlings I have learned from my position.

    It's important to appreciate the time it takes for every aspect of an event to plan and to take place; some tasks can take months to put together, and those should not involve procrastination. But some are OK to sort out the day of. Some of my best work was done with hours to spare, and if that's when you work best, why avoid it? Procrastination, when paired with an organized plan, can turn out to be successful.

    One of the strongest qualities a good leader can have is the ability to delegate. It's a misconception that as a leader, you must do and be a part of every step of a project. Delegating tasks to members of a committee, in my case, was a lifesaver and what made my job so worthwhile. I got to work with so many different talents, and this way, they all feel as if they're contributing in a way that is specific to their talents.

    What I've learned through mistakes and successes in my position has led me to be more knowledgeable, not only about planning events and about the members of my chapter but about communicating, organizing, modeling roles, and involving the community.

    I feel so grateful to be in a position that has encouraged me to learn more about myself and the skills that I've had to acquire. I feel so fortunate to have had this position so far, and it has made me reflect on the kind of leader I hope to be in my future career. Having a leadership position in college is vital to be able to discover how you communicate with others and what skills you have and lack before you go off into the real world.

It is implied that the author...
1) lacked leadership experience before college.

2) welcomed an opportunity to be a leader.

3) got tired of being a director for a semester.

4) joined too many organizations on campus.

13. According to Stephen Schneider, people should be more worried because

1) the heat wave is going to kill more people.

2) the intensity of floods and drought will increase in the near future.

3) nobody can explain the dramatic melting of Greenland.

4) nature has proved the climate change theory.

The risk of catastrophic climate change is getting worse, according to a new study from scientists involved with the United Nations Intergovernmental Panel on Climate Change (IPCC). Threats — ranging from the destruction of coral reefs to more extreme weather events like hurricanes, droughts and floods — are becoming more likely at the temperature change already underway: as little as 1.8 degree Fahrenheit (1 degree Celsius) of warming in global average temperatures.

‘Most people thought that the risks were going to be for certain species and poor people. But all of a sudden the European heatwave of 2003 comes along and kills 50,000 people; [Hurricane] Katrina comes along and there’s a lot of data about the increased intensity of droughts and floods. Plus, the dramatic melting of Greenland that nobody can explain certainly has to increase your concern,’ says climatologist Stephen Schneider of Stanford University, who co-authored the research published this week in the Proceedings of the National Academy of Sciences as well as in several IPCC reports. ‘Everywhere we looked, there was evidence that what was believed to be likely has happened. Nature has been cooperating with climate change theory unfortunately.’

Schneider and his colleagues updated a graph, dubbed the ‘burning embers,’ that is designed to map the risks of damage from global warming. The initial version of the graph drawn in 2001 had the risks of climate change beginning to appear after 3.6 or 5.4 degrees F (2 to 3 degrees C) of warming, but the years since have shown that climate risks kick in with less warming.

According to the new graph, risks to ‘unique and threatened systems’ such as coral reefs and risks of extreme weather events become likely when temperatures rise by as little as 1.8 degrees F from 1990 levels, which is on course to occur by mid-century given the current concentrations of atmospheric greenhouse gases. In addition, risks of negative consequences such as increased droughts and the complete melting of ice caps in Greenland and Antarctica definitively outweigh any potential positives, such as longer growing seasons in countries such as Canada and Russia.

‘We’re definitely going to overshoot some of these temperatures where we see these very large vulnerabilities manifest,’ says economist Gary Yohe of Wesleyan University in Middletown, Conn., another co-author. ‘We’re going to have to learn how to adapt.’ Adaptation notwithstanding, Yohe and Schneider say that scientists must also figure out a way to reduce greenhouse gas emissions to reverse the heating trend to prevent further damage.

Several bills pending in Congress would set a so-called cap-and-trade policy under which an overall limit on pollution would be set — and companies with low output could sell their allowances to those that fail to cut emissions as long as the total stays within the total pollution cap. Any such federal policy would put a price on carbon dioxide pollution, which is currently free to vent into the atmosphere, Yohe note. He, however, favours a so-called carbon tax that would set a fixed price for such climate-changing pollution rather than the cap-and-trade proposals favoured by the Obama administration. ‘It’s a predictable price, not a thing that bounces around.’

But even with such policies in place—not only in the U.S. but across the globe—climate change is a foregone conclusion. Global average temperatures have already risen by at least 1.1 degrees Fahrenheit (0.6 degree C) and further warming of at least 0.7 degree F (0.4 degree C) is virtually certain, according to the IPCC. And a host of studies, including a recent one from the Massachusetts Institute of Technology, have shown that global warming is already worse than predicted even a few years ago. The question is: ‘Will it be catastrophic or not?’ ‘We’ve dawdled, and if we dawdle more, it will get even worse,’ Schneider says. ‘It’s time to move.’

13) According to the author, the information published in the US Geological Survey is meant to …

1. assure the nation that there is still enough of usable water.

2. help to monitor the state of the country’s water resources.

3. demonstrate the quality of water the nation uses.demonstrate the quality of water the nation uses.

4. warn the public about the dangers of water pollution.

Have you ever tasted saltwater? I guess you have and if so, you will agreewith me that it’s not very refreshing. In fact, drinking more than a few cups worthcan kill you.

According to the United States Geological Survey, whose mission is to collect and disseminate reliable, impartial, and timely information that is needed to understand the nation’s water resources, about ninety-seven percent of the water onour planet is saltwater; the rest is stored in lakes, rivers, glaciers and aquifersunderground. Moreover, only about one-third of the world’s potential fresh watercan be used for human needs. As pollution increases, the amount of usable waterdecreases.

Water is the most precious and taken-for-granted resource we have on Earth.It is also one of the most threatened resources. Increased population and possibleclimate change will put more and more strain on supplies of this vital resource astime goes on. What could we do in this situation? Though it may seem like sciencefiction, the solution could lie in outer space.

I’m not saying we’re going to be teleporting to a spring on the other side ofthe galaxy or colonizing another planet just to have longer showers – it’s muchmore mundane than that. What we could achieve realistically in this century is thesuccessful use of the solar system’s rare metals and water, barring the invention ofthe matrix.

You may be surprised to learn that the metal in your keys, coins, cell phone,computer, car and everywhere else, originally came to this planet from space.When Earth formed, the heavy metals sank to the center and formed a solid core.The lighter elements formed the mantle and the crust we live on. Asteroids andcomets that struck the Earth brought water and metals to the surface.

There are thousands of asteroids orbiting near Earth. Most asteroids aremade of rock, but some are composed of metal, mostly nickel and iron. Probescould be sent out to these to identify useful ones. Then larger probes could pushthem towards the Earth where they can be handled in orbit.

In order to fuel ships and probes, we simply need to find a source of water,such as a comet or the surface of the moon. We collect the water and pass anelectric current through it from a solar panel. The water separates into oxygen andhydrogen, which in liquid form is a powerful rocket fuel.

Is this really possible? We may soon find out. Private company SpaceX hasalready started delivering equipment to the International Space Station (ISS).The ISS is proof that countries once at each other’s throats, like America andRussia, can work together and pull off multi-billion dollar projects.

Recently, a company called Planetary Resources Inc. made the news forgetting big names like Google and Microsoft to invest in exploring asteroids for material gain. Although it will take many decades, it is wise to put the gears in motion now.

We’ve already landed probes on the surface of asteroids and taken samples from them. We can put something as large as the ISS, which weighs just short of 500 tons, according to National Aeronautics and Space Administration (NASA), in orbit.

We can make a half-million-mile round-trip to get rocks from the moon. We can do all of these things already. They just need to be applied and developed in a smart way.

13) According to the author, the information published in the US Geological Survey is meant to …

1. assure the nation that there is still enough of usable water.

2. help to monitor the state of the country’s water resources.

3. demonstrate the quality of water the nation uses.demonstrate the quality of water the nation uses.

4. warn the public about the dangers of water pollution.

Have you ever tasted saltwater? I guess you have and if so, you will agree with me that it’s not very refreshing. In fact, drinking more than a few cups worth can kill you.

According to the United States Geological Survey, whose mission is to collect and disseminate reliable, impartial, and timely information that is needed to understand the nation’s water resources, about ninety-seven percent of the water on our planet is saltwater; the rest is stored in lakes, rivers, glaciers and aquifers underground. Moreover, only about one-third of the world’s potential fresh water can be used for human needs. As pollution increases, the amount of usable water decreases.

Water is the most precious and taken-for-granted resource we have on Earth. It is also one of the most threatened resources. Increased population and possible climate change will put more and more strain on supplies of this vital resource as time goes on. What could we do in this situation? Though it may seem like science fiction, the solution could lie in outer space.

I’m not saying we’re going to be teleporting to a spring on the other side of the galaxy or colonizing another planet just to have longer showers – it’s much more mundane than that. What we could achieve realistically in this century is the successful use of the solar system’s rare metals and water, barring the invention of the matrix.

You may be surprised to learn that the metal in your keys, coins, cell phone, computer, car and everywhere else, originally came to this planet from space. When Earth formed, the heavy metals sank to the center and formed a solid core. The lighter elements formed the mantle and the crust we live on. Asteroids and comets that struck the Earth brought water and metals to the surface.

There are thousands of asteroids orbiting near Earth. Most asteroids are made of rock, but some are composed of metal, mostly nickel and iron. Probes could be sent out to these to identify useful ones. Then larger probes could push them towards the Earth where they can be handled in orbit.

In order to fuel ships and probes, we simply need to find a source of water, such as a comet or the surface of the moon. We collect the water and pass an electric current through it from a solar panel. The water separates into oxygen and hydrogen, which in liquid form is a powerful rocket fuel.

Is this really possible? We may soon find out. Private company SpaceX has already started delivering equipment to the International Space Station (ISS).The ISS is proof that countries once at each other’s throats, like America and Russia, can work together and pull off multi-billion dollar projects.

Recently, a company called Planetary Resources Inc. made the news forgetting big names like Google and Microsoft to invest in exploring asteroids for material gain. Although it will take many decades, it is wise to put the gears in motion now.

We’ve already landed probes on the surface of asteroids and taken samples from them. We can put something as large as the ISS, which weighs just short of 500 tons, according to National Aeronautics and Space Administration (NASA), in orbit.

We can make a half-million-mile round-trip to get rocks from the moon. We can do all of these things already. They just need to be applied and developed in a smart way.