Fear and its companion pain are two of the most useful things that men and animals possess, if they are properly used. If fire did not hurt when it burnt, children would play with it until their hands were burnt away. Similarly, if pain existed but fear didn’t, a child would burn himself or herself again and again, because fear would not warn himself or herself to keep away from the fire that had burnt himself or herself before. A really fearless soldier—and some do exist, is not a good soldier because he is soon killed; and a dead soldier is of no use to his army. Fear and pain are therefore two guards without which men and animals might soon die out.
In our first sentence we suggested that fear should be properly used. If, for example, you never go out of your house because of the danger of being knocked down and killed in the street by a car, you are letting fear rule you too much. Even in your house you are not absolutely safe: an aeroplane may crash on your house, or ants may eat away some of the beams in your roof so that the latter falls on you, or you may get cancer!
The important thing is not to let fear rule you, but instead to use fear as your servant and guide. Fear will warn you of dangers; then you have to decide what action to take.
In many cases, you can take quick and successful action to avoid the danger. For example, you see a car coming straight towards you. Fear warns you, you jump out of the way, and all is well.
In some cases, however, you decide that there is nothing that you can do to avoid the danger. For example, you can’t prevent an aeroplane crashing onto your house. In this case, fear has given you its warning; you have examined it and decided on your course of action, so fear of this particular danger is no longer of any use to you, and you have to try to overcome it.Children would play with fire until their hands were burnt away if _________.
| A．they were given no warning beforehand |
| B．they had never burnt themselves |
| C．they had no sense of pain |
| D．they were fearful of the fire |
A really fearless soldier _____________.
| A．is of great use to the army |
| B．is not a real soldier |
| C．is nothing but a dead soldier |
| D．easily gets killed in a battle |
People sometimes succeed in timely avoiding the danger because _________.
| A．they have gained experience |
| B．they jump out of the way in time |
| C．they are calm in the face of danger |
| D．they are warned of the danger by fear and take quick action |
What's the writer's suggestion when the danger can't be avoided?
| A．You have to try to overcome it. |
| B．Fear can really help you to run away. |
| C．Fear always helps you stay safe. |
| D．Fear is of great use to you. |
Amazingly, US crime figures have been falling for 20 years now. Of course, the big question is, why? And can any lessons be learnt?
One reason could be the fall in the demand for the drug crack. During the 1980s, drug-related crimes soared, mostly caused by desperate crack users. However, according to professor Blumstein, co-author of The Crime Drop in America, news of the dangers of crack use caused its decrease and led to a fall in the number of drug-related crimes.
Some say that the adoption of a zero-tolerance policy in many cities has helped lead to a fall in crime. In New York City, for example, mayor Rudy Giuliani imposed strict and automatic punishments for all crimes, including minor offences such as graffiti and littering. Many believe this has had a very strong deterrent effect.
Another reason could be smarter policing strategies. Anti-theft measures and educating the community about car theft has helped see a drop in crimes in many areas. Also, the use of crime mapping schemes that can discover identify crime peaks in different parts of the city has helped police target hotspots.
Another reason could be that more criminals are now behind bars. Sociologist John Conklin (from Tufts University) says a significant factor behind the fall in crime in the 1990s is the simple fact that many criminals are in jail. In his book Why Crime Rages Fell, he says sentencing was merciful in the 1960s and 1970s, when crime rose. But then more prisons were built and more offenders were imprisoned.
Some have linked the fall in violent crime to a decline in children’s exposure to lead in petrol. Jessica Wolpaw Reyes says, “Even low to moderate levels of exposure can lead to behavioral problems, reduced IQ, hyperactivity and youth crimes. You can link the decline in lead between 1975 and 1985 to a decline in violent crime 20 years later.”
Others say that the drop in crime has something to do with birth rates. According to statistics, birth rates peaked between 1957 and 1961, and the proportion of men in the US in their late teens and early 20s (the so-called “criminal age”) was highest in the late 70s and early 80s. However, as time went on, the proportion of people in this age group decreased.
Others claim that videogames have helped. A recent study has suggested that these games are keeping young people off the streets and therefore away from crime. Advocates of this argue that any effects the games may have in encouraging violent behavior is offset by the fact that the games keep potential criminals indoors and in front of the television.
Some argue that the widespread use of camera phones makes some criminals think twice before committing a crime and getting filmed doing it. Also, many believe that the mass use of CCTV has also had an effect.
Finally, some say that petty theft just isn’t worth it any more. The resale value of second-hand goods such as televisions, cameras or clothes is now so low (or even non-existent) that most people see no point in stealing.
So, what do you think?“Why Crime Rates Fell” is mentioned in the article to tell readers that ______.
| A．drug crack can be extremely dangerous |
| B．crime mapping schemes help the police discover criminals |
| C．criminals should be strictly sentenced |
| D．children shouldn’t be allowed to contact lead |
The underlined words “deterrent” in paragraph 3 most probably means ______.
| A．ambiguous | B．contradictory |
| C．encouraging | D．frightening |
Which of the following statements can NOT be concluded from the article?
| A．Drug abuse may have something to do with high crime rates. |
| B．The young are more likely to commit crimes than the poor. |
| C．The widespread use of cameras is helpful to reducing crime rates. |
| D．The possible effects of games encouraging violence are partly countered. |
By writing this article, the writer intends to tell us ______.
| A．the amazing fact that US crime figures are going down |
| B．the recent statistics showing that crime rates are falling in the US |
| C．the answers to the question why US crime figures are falling |
| D．the special policies adopted by the US police that help a drop in crime |
Interactive Home-security Systems
Tarik Celebi, who lives in San Francisco suburb, takes his home-security system with him to work, to dinner, just about anywhere．By his cell phone, he "arms" his home-security alarm from his car before he leaves for work．During his workday, he gets e-mail alerts every time his front door opens, even though he's miles away．If the door opens at an unusual time ---say midday when no one should be coming or going --- he can order a 30-second video clip from the camera that watches the door．If it's just his mother-in-law getting a package delivery, no worries．
Celebi is one of the first users of the latest interactive home-security systems．In addition to sounding alarms when the house is broken into and notifying homeowners or police, as traditional systems do, the interactive systems give users new ways to remotely control their systems and their home environment．Different from traditional home-security alarms, which homeowners typically have to press buttons on a keypad to turn on before they leave their homes, the interactive systems enable consumers to arm and disarm systems from smart phones, iPads and PCs, no matter where they are．
Most traditional systems are set up to sound an alarm if doors or windows are opened． The interactive systems give homeowners more options．For example, users can elect when they want to be notified．They might want an e-mail or a text every time a door is opened, or only during the hours of 3 to 4 p．m．, when kids come home from school．Like Celebi, they can add cameras and get video clips when doors open．That could be helpful in making sure kids aren't bringing friends home when they're not supposed to．
Nationwide, about 20% of homes have traditional home-security systems．About half stop using them because they tire of the trouble．Being able to arm systems even while dashing to the subway or while at work will increase their usage of the new interactive systems．Although the new functions add costs to home security, the interactive-systems are believed to push home-security systems' usage rates closer to 30%, which would be a big movement for an industry that's been largely stuck at 20% for the past decade．"We all know it's going to get bigger, though we don't know how long it's going to take," Eric Taylor, an officer from San Francisco Security Department says．What may Celebi first do if his front door opens at a wrong time when he is away?
| A．Inform the police． | B．Call his mother-in-law． |
| C．Arm the security alarm． | D．Observe through video． |
The interactive systems enable the user to ______.
| A．improve his home environment remotely |
| B．lock his house's door while he is miles away |
| C．operate the home-security systems at any place |
| D．stop some friends of kids from entering automatically |
What's the advantage of the interactive systems over the traditional ones?
| A．They are cheaper. |
| B．They have more ways to inform the users. |
| C．They can give quicker reaction． |
| D．They are easier to set up. |
What is the last paragraph mainly about?
| A．The importance of security industry. |
| B．The functions of the interactive alarms. |
| C．The popularity of home-security systems. |
| D．The market potential of the interactive systems. |
One might expect that the ever-growing demands of the tourist trade would bring nothing but good for the countries that receive the holiday-makers. Indeed, a rosy picture is painted for the long-term future of the holiday industry. Every month sees the building of a new hotel somewhere, and every month another rock-bound Pacific island is advertised as the 'last paradise(天堂) on earth'.
However, the scale and speed of this growth seem set to destroy the very things tourists want to enjoy. In those countries where there was a rush to make quick money out of sea-side holidays, over-crowded beaches and the concrete jungles of endless hotels have begun to lose their appeal.
Those countries with little experience of tourism can suffer most. In recent years, Nepal set out to attract foreign visitors to fund developments in health and education. Its forests , full of wildlife and rare flowers, were offered to tourists as one more untouched paradise. In fact, the nature all too soon felt the effects of thousands of holiday-makers traveling through the forest land. Ancient tracks became major routesfor the walkers, with the consequent exploitation of precious trees and plants.
Not only the environment of a country can suffer from the sudden growth of tourism. The people as well rapidly feel its effects. Farmland makes way for hotels, roads and airports; the old way of life goes. The one-time farmer is now the servant of some multi-national organization; he is no longer his own master. Once it was his back that bore the pain ; now it is his smile that is exploited. No doubt he wonders whether he wasn't happier in his village working his own land.
Thankfully, the tourist industry is waking up to the responsibilities it has towards those countries that receive its customers. The protection of wildlife and the creation of national parks go hand in hand with tourist development and in fact obtain financial support from tourist companies. At the same time, tourists are being encouraged to respect not only the countryside they visit but also its people.
The way tourism is handled in the next ten years will decide its fate and that of the countries we all want to visit. Their needs and problems are more important than those of the tourist companies. Increased understanding in planning world-wide tourism can preserve the market for these companies. If not, in a few years’ time the very things that attract tourists now may well have been destroyed.The example of Nepal is used to suggest _________ .
| A．its natural resources are untouched. |
| B．its forests are exploited for farmland |
| C．it develops well in health and education. |
| D．it suffers from the heavy flow of tourists. |
What can we learn about the farmers from Paragraph 4 ?
| A．They are happy to work their own lands. |
| B．They have to please the tourists for a living. |
| C．They have to struggle for their independence. |
| D．They are proud of working in multi-national organizations. |
Which of the following determines the future of tourism ?
| A．The number of tourists |
| B．The improvement of services. |
| C．The promotion of new products. |
| D．The management of tourism |
The author’s attitude towards the development of the tourist industry is __________.
| A．optimistic | B．doubtful |
| C．objective | D．negative |
Moocs (massive open online courses) are free, but without tutoring, and are open to anyone, anywhere in the world. The courses are flexible – normally three to five hours of study a week – done at any time, short (5 to 10 weeks) and video-rich. They are also heavily dependent on crowd sourcing: you can discuss a course with fellow students through online forums, discussion boards and peer review. Students don't have to finish the courses, pass assessments or do assignments, but, if they do, they get a certification of participation.
The Open University launched FutureLearn, the UK's answer to US platforms such as Coursera, EdX and Udacity, which have been offering Moocs from top US universities for the past two years. The response has been incredible, with more than three million people registering worldwide. Meanwhile, in 2012, Edinburgh University became the first non-US institution to join Coursera's partnership, comprising 13 universities. “We already run 50 online master's degrees, so this was a logical expansion,” says Professor Jeff Haywood, Edinburgh's vice-principal. “It's an investment in teaching methods research. How am I going to teach introductory philosophy to 100,000 people? That's what I call educational R&D.” He adds “If you look ahead 10 years, you'd expect all students graduating to have taken some online courses, so you've got to research that. Our Moocs are no more in competition with our degrees than a lifelong learning course because they don't carry credits.”
Cooperation is key, Haywood stresses. It is far better to offer 20-30 courses in your own areas of expertise(专门技能) and let other institutions do likewise. Professor Mike Sharples, FutureLearn's academic lead, goes further: “We've tied the elements available before into a package of courses offered by leading universities worldwide on a new software platform, with a new way of promoting it and also a new social-learning teaching method. You won't just receive an exam, but be able to discuss and mark each other's assignments.”
Bath University, one of more than 20 universities working with FutureLearn, launches its first course, Inside Cancer, next January, and regards Moocs as a way of breaking down age barriers. "There's no reason why someone doing GCSEs should not look at our Moocs and get quite a way through them, or someone at PhD level and beyond," says Professor Bernie Morley, expert for learning and teaching.
Moocs have these features EXCEPT that_______.
| A．Moocs are free of charge for anyone |
| B．Moocs can be adjusted according to people’s learning pace |
| C．Moocs provide teachers’ instructions if you have some difficulty |
| D．Moocs have a platform for learns to share their learning experience |
What can be inferred from Professor Bernie Morley in the last paragraph?
| A．People with various learning levels will probably show interest in Moocs. |
| B．People at PhD level have already known everything about Moocs. |
| C．Inside Cancer will be the most popular course for someone doing GCSEs. |
| D．Moocs are not so competitive as lifelong learning courses due to the problems of credits. |
The passage mainly deals with _____.
| A．the various opinions on FutureLearn |
| B．the advantages of online teaching methods |
| C．the popularity of no-credit courses |
| D．the emergence of a new learning platform |
The movies just wouldn’t be the same without the warm buttery taste of popcorn. Amazingly, this delicious treat started its life as a corn kernel (玉米粒) , not just from any corn. Popcorn is a type of sweet corn that was originally grown in Mexico and spread to China, India and elsewhere. It is the only kind of corn that will pop. Today, most of the world’s popcorn is grown in the United States.
Every popcorn kernel contains a tiny drop of water，surrounded by soft starch (淀粉). When the popcorn is heated, the water turns into steam. This puts pressure on the surrounding hard kernel, forcing it to explode. The soft starch increases about 40 times in size as the corn kernel turns itself inside out.
In the 1500s popcorn was an important food source for the Aztec Indians of central and southern Mexico. But it wasn’t only food. It was also used in ceremonies or on red dresses and in necklaces. By the time the Europeans arrived in America，popcorn had spread through most of the American Indians.
Some early American settlers ate popcorn with cream and sugar for breakfast. But it wasn’t until the late 1800s that popcorn became popular. The demand for popcorn increased and farmers began farming popcorn. The first mobile popping machine was invented in 1885, and popcorn was sold by street sellers much like hot dogs that are sold today.
During the Great Depression of the 1930s, the popcorn business still thrived as people could still afford it. Then in the 1950s television arrived and popcorn consumption decreased. People stayed home and stopped going to the theatre. But the link between movies and popcorn had already existed. Soon people began making popcorn at home on the stove and, later，microwave popcorn was introduced. Today the movies have regained popularity and popcorn has once again become the favorite.Popcorn was first planted in________.
| A．China | B．America | C．India | D．Mexico |
Why does the corn kernel pop when heated?
| A．Because it is covered with soft starch. |
| B．Because the pressure inside is too big. |
| C．Because the starch becomes bigger in size. |
| D．Because there is water inside the kernel. |
We can know from the passage that________.
| A．popcorn began to be farmed in the late 1800s |
| B．popcorn was only a kind of food in the 1500s |
| C．hot dogs used to be sold by street sellers |
| D．people stop eating popcorn while watching movies now |
The underlined word “thrived” in the fifth paragraph probably means “________”.
| A．started to disappear | B．was seriously affected |
| C．suffered a lot | D．developed very well |
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