Using technology, of course. While special services via webcam(摄像头) and cheating detecting software have been developed now, Mettl, an online company, has developed advanced techniques for netting cheaters, which the company claims are even more reliable and easier to use. Whatever small attempt to cheat, he or she will be found out.

    Mettl has adopted a handful of technologies on its test—taking platform, creating a mini monitoring state in an exam. Here's how it works: A test-takersigns on to Mettl and selects hisher exam from the site's library of pre—loaded tests. Facial and keystroke recognition technology confirm the person that has signed in is the very person, and the system records both the test—taker(through the webcam)and the test—taker's screen throughout the test.

    Mettl's technology uses the test—taker's webcam to detect how many people are using the computer. Soon, it will track eye movement well enough to sense whether the test-taker is looking away from the screen, perhaps to Consult a smart phone or a friend in secret. Mettl also monitors the test-taker's screen and can detect when the test-taker has changed a computer or moved from the test. The system will soon be able to record sound, thus detecting whether the test-taker is talking or being talked to.

    If any irregularities are detected, the system flags the incident and reports it back to the test's administrator. This can bring any number of things, depending on the test-giver's wishes: a completeshutdown of the exam, a warning message that appears on the test-taker's screen, even human instructions from the control center.

    Mettl is hoping its technology will help it break into the country's big MOOC markets.

    A new study of 8,000 young people in the journal of Health and Social Behavior shows that although love can make adults live healthily and happily，it is a bad thing for young people. Puppy love（早恋）may bring stress for young people and can lead to depression. The study shows that girls become more depressed than boys, and younger girls are the worst of all.

    The possible reason for the connection between love and higher risk of depression for girls is “loss of self”. According to the study, even though boys would say “lose themselves in a romantic relationship”, this “loss of self” is much more likely to lead to depression when it happens to girls. Young girls who have romantic relationships usually like hiding their feelings and opinions. They won't tell that to their parents.

    Dr Marianm Kaufman, an expert on young people problems, says 15% to 20% young people will have depression during their growing. Trying romance often causes the depression. She advises kids not to jump into romance too early. During growing up, it is important for young people to build strong friendships and a strong sense of self. She also suggests the parents should encourage their kids to keep close to their friends, attend more interesting school activities and spend enough time with family.

    Parents should watch for signs of depression—eating or mood changes—and if they see signs from their daughters or sons，they need to give help. The good news is that the connection between romance and depression seems to become weak with age. Love will always make us feel young, but only maturity(成熟) gives us a chance to avoid its bad side effects.

    Electric Shock

    Injuries caused by electric shock are fairly common. When a person has received an electric shock, no one should go near him/her until the current has been turned off.

    If a shock occurring at work or at home causes someone to lose consciousness（知觉）, electrical connection must be broken before anyone tries to give assistance. You should either turn off the switch at the mains or, if that is not possible, push the person away with a dry piece of wood.

    Treatment of Shock

    Look out for signs of shock. People who have been injured or who may have lost a lot of blood, or those who have had heart attacks, may be in deep shock. The signs to look for are faintness, paleness, a moist, sticky skin, shallow, rapid breathing and a fast but weak heartbeat.

    Shock can prove fatal, and it is essential to do something to prevent its developing. The best way to treat or prevent shock is to keep the patient lying down , better with the legs higher than the head; if possible, raise the lower part of the body on a rolled-up packet or similar object. Make the patient as comfortable as possible, loosening any tight clothing, and comfort him/her because fright increases the effects of shock.

    The values of artistic works, according to cultural relativism(相对主义), are simply reflections of local social and economic conditions. Such a view, however, fails to explain the ability of some works of art to excite the human mind across cultures and through centuries.

    History has witnessed the endless productions of Shakespearean plays in every major language of the world. It is never rare to find that Mozart packs Japanese concert halls, as Japanese painter Hiroshige does Paris galleries, Unique works of this kind are different from today's popular art, even if they began as works of popular art. They have set themselves apart in their timeless appeal and will probably be enjoyed for centuries into the future.

    In a 1757 essay, the philosopher David Hume argued that because" the general principles of taste are uniform(不变的) in human nature," the value of some works of art might be essentially permanent. He observed that Homer was still admired after two thousand years. Works of this type, he believed, spoke to deep and unvarying features of human nature and could continue to exist over centuries.

    Now researchers are applying scientific methods to the study of the universality of art. For example, evolutionary psychology is being used by literary scholars to explain the long-lasting themes and plot devices in fiction. The structures of musical pieces are now open to experimental analysis as never before. Research findings seem to indicate that the creation by a great artist is as permanent an achievement as the discovery by a great scientist.

    Reading is the ability to process text, understand its meaning and to integrate it with what the reader already knows. Of all the reading skills speed-reading is a necessary skill in the Internet age. We skim over articles, e-mails and WeChat to try to grasp key words and the essential meaning of a certain text. Surrounded with information from our electronic devices, it would be impossible to cope if we read word by word, line by line. But a new trend calls on people to unplug and enjoy reading slowly, listing benefits beyond the intelligent stimulation.

    A recent story from The Wall Street Journal reported on a book club in Wellington, New Zealand, where members meet in a cafe and turn off their smartphones. They sink into cozy chairs and read in silence for an hour. Unlike tradition book club, the point of the slow reading club isn't exchanging ideas about a certain book, but to get away from electronic devices and read in a quiet, relaxed environment. According to The Wall Street Journal, the Wellington book club is just one example of a movement started by book lovers who miss the old-fashioned way of reading before the Internet and smartphones.

    Slow readers, such as The Atlantic's Maura Kelly, say a regular reading habit sharpens the mind, improves concentration, reduces stress levels and deepens the ability to sympathize. Another study published last year in Science showed that reading novels helps people understand others' mental states and beliefs, a fundamental skill in building relationships.

    Yet technology has made us less attentive readers. Screens have changed our reading patterns from the top-to-right, left-to-right sequence to a wild skimming and skipping pattern as we hunt for important words and information. Reading text punctuated with links leads to weaker comprehension than reading plain text. The Internet may have made us stupider, says Patrick Kingsley from The Guardian. Because of the Internet, he says, we have become very good at collecting a wide range of interesting news, but we are also gradually forgetting how to sit back, reflect, and relate all these facts to each other.

    Slow reading means a return to an uninterrupted, straight pattern, in a quiet environment free of distractions. "Aim for 30 minutes a day," advises Kelly from The Atlantic. "You can squeeze in that half hour pretty easily if only during your free moments, you pick up a meaningful work of literature," Kelly said. "Reach for your e-reader, if you like. Kindles make books like War and Peace less heavy, not less substantive, and also ensure you'll never lose your place."

Urban Transportation in Canada

Public transportation & Transit passes

All cities and most major towns in Canada have a public transportation system with one or more modes of transportation（bus, subway, train, etc.）. The bus is the most common form of urban transportation in Canada. To use public transportation, you must purchase a ticket or a transit pass. Transit passes allow you unlimited use of public transportation for a specific period（one month or more）. They are usually cheaper than buying many tickets if you plan to use public transportation often.

Transportation for people with disabilities

Public transportation often has features to assist people with disabilities. In many cities and towns, there are also transportation services available specifically for people with limited mobility, such as specially equipped buses. You can find out about these services in the same way you would learn more about other public transportation options.

Etiquette（礼节）on public transportation

When taking public transportation such as a bus or train, it is important to understand the unspoken rules of conduct in the shared space. Here are a few things to note:

Be polite and respectful to others around you. For example, maintain an appropriate noise level when talking or making a phone call.

If you are carrying a back pack or a large shoulder bag in a crowded public transit vehicle, keep it close to you, preferably at your feet to avoid hitting people with it as you walk by.

Avoid pushing or touching others in order to make more room for yourself. Sometimes public transit can become very crowded, but it is important to keep calm and give others appropriate personal space.

Have your proof（证明）of payment accessible in case you are asked to show it.