Traffic Light Reading is one of students' favorites! And it's so simple. Here's what to do: Take three pens in different colors, most suitably red, orange and green. But it's not too important as long as teachers and students are both clear on the colour code they're going to use.

    Students read a text, not worrying too much about how much they understand. Teachers can ask them to re-read when students are paying attention to vocabulary. Start by underlining the words that they understand completely (including names, numbers etc) in green.

    Then students re-read the text and underline the words that look familiar-they maybe know them but aren't too sure about them. You guessed it: in orange.

    Finally, students read the text a third time underlining the words they clearly don't understand in red. Sometimes teachers might want to set students a limit for how many red words they underline, telling them only to underline the words that they believe are seriously blocking their understanding of the text as a whole. Generally, however, students are pleasantly surprised by how few words are red and how many are green. Seeing their ability laid out in a visual way really helps to increase confidence.

    Once the whole text is underlined, teachers can give students a limit of 5, 10 or 15 words, depending on the length of the text, and tell them they're only allowed to look these words up in a dictionary. This helps them to recognize words that are actually getting in the way of their understanding of the text and words that they don't know but actually don't impact their whole understanding of the text.

    This is a useful activity that can be done with a printed text, in a Google Doc, on RealtimeBoard, or set as a homework task for some independent study.

    An autonomous vehicle designed for making local commerce deliveries was uncovered by Nuro. The vehicle is about the height of an SW but far narrower than a typical car. The electric car features four outside compartments（暗格）—two on each side -to hold separate deliveries. Each compartment can be tailored to a specific use, such as cooking a pizza or refrigerating a package.

    “We can use self-driving technology to deliver anything, anytime, anywhere for basically all local goods and services,” Nuro co-founder Dave Ferguson said. “Consumers used to be okay with two-week paid shipping. It became two-week free delivery, followed by one week, two days, and the same day. Now same-day delivery isn't fast enough for some customers.”

    Nuro isn't alone in building robots for local commerce deliveries. Earlier this month, Toyota, a Japanese car company, uncovered a concept vehicle that could be used for package delivery. A handful of startups—including Starship Technologies, Marble and Dispatch—are testing small robots for deliveries on sidewalks.

    Nuro's vehicle will likely face legal hurdles. Fully autonomous vehicles without a test diver aren't legal in California today, and many companies have shifted testing o states where regulators are more welcoming of autonomous vehicles, such as Arizona.

    Nuro expects to face fewer challenges because it doesn't carry passengers. Nuro's narrow size may also be helpful when navigating streets and avoiding pedestrians. The vehicle isn't equipped with any special features to communicate with pedestrians or other road users. Some companies have tested and patented solutions such as digital screens that signal the car's next move. Ferguson said his team conducted studies and found that such techniques could confuse people. Nuro believes it's better to make sure the car performs predictably, so that human drivers know what to expect from it.

    “We feel by creating this new technology that's going to enable this last mile delivery, we're going to be creating new markets and doing things that previously weren't possible,” Ferguson said. “This is not swapping out jobs with robots. It's creating new markets. There will definitely be new employment opportunities.”

                                                                                           Taktak tabulaba?

    You probably don't know how to answer that question ─ unless you happen to be one of the about 430 people in the world who speak a language called Matukar Panau. Then you would know it means “ What are we doing?” Matukar Panau is one of the world's rarest languages. It is spoken in just two small coastal villages in Papua New Guinea.

    Several years ago, David Harrison, a language expert, didn't know much about Matukar Panau either. No one had ever recorded or even studied its words and rules. With so few speakers, the language risked disappearing soon. It was endangered.

    Harrison didn't want that to happen to Matukar Panau. So in 2009, he set out for Papua New Guinea. His goal: use modern technology to help the remaining speakers preserve their native tongue.

    But Matukar Panau is not the only language facing loss. Studies suggest that by the end of this century，nearly half of the 7,000 languages now spoken worldwide could disappear. They're in danger partly because the only people left speaking them are elderly adults. When those old men die, their language will die with them. In addition, children may discard a native language and instead use more common global languages, such as Chinese, English or Spanish.

    In the United States alone, 134 native American languages are endangered. “Language hotspots” exist all over the world. These are places with endangered languages that haven't been recorded. They include the state of Oklahoma, pockets of central and eastern Siberia, parts of northern Australia and communities in South America.

    Families around the country are finding new options for their children's midday meal thanks to a growing number of delivery options catering to students. Kiddos Catering in Chicago adopts a method of providing restaurant meals to schools that contract with it. Owner Michelle Moses and her staff work with area restaurants to create a variety of kid-friendly choices and deliver the meals to the schools five days a week. Parents select the lunches from an online order form that lists the day's featured restaurant and its menu choices.

    "Each day is a different restaurant with six to 10 menu options," she said. "It offers so much choice to kids." The service appeals to parents because they think their children are less likely to toss out restaurant food than a packed lunch, Ms. Moses said. The schools appreciate that Moses handles the ordering, payment, pickup, and food distribution in the cafeteria. "Schools really want to be in the business of educating kids," she said. "They don't want to be in the food and beverage(餐饮) business."

    That doesn't mean that schools always like it when teens (or parents) take it upon themselves to order food through phone apps. Many schools have banned that practice, citing safety concerns about delivery drivers showing up at school unannounced and the burden of tracking down students to alarm them that their meals have arrived.

    "These types of deliveries pose an unnecessary security risk for students and staff," said Bernard Watson, director of community relations for Gwinnett County Public Schools in Suwanee, Ga. "In addition, our award-winning school nutrition program provides students with a wide variety of tasty, nutritious meals on-site, so there is no need to order food from outside."

    Jacob Levin, a recent graduate of Bexley High School in Bexley, Ohio, relied on a sub shop to deliver a sandwich to him during lunchtime meetings or other appointments that conflicted with his lunch period. "It was a convenient option. In most cases, I would not have been able to eat at school if it weren't for the delivery option," he said. "Having a restaurant-quality sub also was much more enjoyable than cafeteria food."

    Do you have any stress in your daily life and do you know how to reduce your stress?

    Our world is changing with ever increasing speed and many people are finding it difficult to keep up with it. Although no one can control the world at large, people do have the power to control their personal world by controlling stress and their responses (反应) to it.

    Of course a certain amount of stress, both physical and mental is normal and healthy for humans but too much can be fatal. According to a report on the Mayo Clinic's website, "80% of patient visits to their doctors are stress related. Almost 60% of all employee absences from work are related to stress. Over one million people (in the U. S. ) die each year due to diseases related to stress. This includes obesity(肥胖), lung cancer (due to smoking), heart disease and high blood pressure. "

    The result of stress or the way it shows in a person's life is, in part, their reaction to the situation. Some of the ways in which stress "shows up" are signals that need to be recognised, before more serious conditions develop. A few of these are: stomachaches, chest pain, anxiety, depression, low self-esteem (自尊) and impatience.

    The good news is that these reactions can be changed naturally. By using positive suggestions a hypnotist (催眠治疗师) can help us make great changes. A deep, relaxing hypnotic rest is a very safe, pleasant and enjoyable process and stress reduction is a natural by-product.

    If you would like to get the tools to reduce stress naturally, hypnotism can be very helpful. A professional hypnotist not only guides people through stress reducing exercises and offers suggestions for dealing with stress, but also teaches self hypnosis skills which can be used throughout life.