Whitney Elizabeth Houston (August 9, 1963—February 11, 2012)was an American singer, actress, producer and a former model. Often referred to as the “Queen of Pop”or simply “the Voice”. Houston was the most awarded female actress of all time. According to Guinness World Record 22American Music Awards, among a total of 415 career award as of 2010. Houston was also one of the world's best-selling music artists, artists, having sold over 170 million albums and singles worldwide.

    Born in what was then a middle-income neighborhood in New Jersey, Houston began singing in a  junior gospel choir at age 11.After she began performing alongside in night clubs in New York City, she was discovered by Arista Records head Clive Davis, who had an impact on her as a singer and performer.

    Houston was the only artist to chart seven consecutive(连续) No. 1 Billboard Hot 100 hits. She was the second artist behind Elton John and the only female artist to nave two number-one Billboard 200 Album awards on the Billboard magazine year-end charts. How Will I Know enthralled her fans and audience and even several African-American female artists to follow in her footsteps. Houston's first acting role was as the star of the feature film The Bodyguard (1992). The film's original soundtrack won the 1994 Grammy Award for Album of the Year. Its lead single, I Will Always Love You became the best-selling single by a female artist in music history. Three years after the release of her fourth studio album. My Love Is Your Love (1998), she renewed her recording contract with Arista Records. She released her fifth studio album.  Just Whitney, in 2002, and the Christmas-themed One Wish: The Holiday Album in 2003. In 2009. Houston released her seventh and final studio album. I Look to You.

    Houston died of causes yet to be determined on February 11,2012. Later this year her film Sparkle will be released into theaters.

    The introduction of the iPad,with its touch screen technology,has allowed even very young children to take advantage of a computer.So what if all children in a school were given an iPad to use in class and take home with them?

    Anne Laure Bazin works in a school where every child,teacher and teaching assistant is given a free iPad to use in and out of lessons.For her,the main advantage of everyone having an iPad had been the improvement in communication.Documents can be emailed straight over to workmates during a meeting.Children submit their homework by email,or through the school's learning environment.Teachers now take the register（点名）using their iPad,which means that there is a record of which children are in school,and which classroom they are in.

    The use of iPad has encouraged greater sharing of resources among teacher.All communication with parents is now done by email.Working as a group in class is much easier as children can share documents.The whole class can look at one child's work by attaching（连接）the iPad to the whiteboard.If a child has forgotten the textbook,the teacher can take a photograph of the relevant（相关的）page and send it to the student in class.

    While the use of the iPad in schools has revolutionized（变革）the way children are taught ,it hasn't completely replaced more traditional methods of teaching .Worksheets are still used in class as some children prefer the contact with paper.The children all have a textbook and exercise books.In Anne Laure's school,parents feared that the iPads would replace exercise books and children would lose handwriting skills.Anne Laure says,” The teacher are not ready to let go of the traditional style of teaching.We have welcomed the iPads in so much as they help communication and widen the resources available but we are not ready to let go of paper yet.The children themselves still value their exercise books and depend on them for review.”

    There is no doubt that to study abroad gives you an excellent opportunity to learn things which are very helpful in your career building. Today Canada has earned a good name in providing quality education and safe healthy environment for its students. That is why more than 130,000 international students enroll(登记入学) every year in famous Canadian universities. It is an ideal education destination and gives students a unique experience of education and its versatile(多样的) arts and culture. Canada spends a lot on education and is ranked the highest in G-8 countries.

    To study in Canada is very cost effective. These universities are affordable compared to other universities in the world such as in the US, New Zealand and UK where cost of education and living is very high. According to a survey in 2006, "Canada offered the lowest tuition fees(学费) for foreign students compared to UK and Australia."

    The low rate of crimes and the peaceful safe environment of the country also attracts a lot of international students to Canadian universities. Canada has 92 universities and 175 community colleges and university degrees have three levels—Bachelor's (学士), Master's (硕士) and Doctoral(博士).

    A Bachelor's degree in Canada is for three or four years' full-time study depending on the nature of the program you are doing. On the other hand, a Master's degree consists of two years of study. For a Doctoral program in Canadian universities, you require a minimum (最低/小的) of three to four or sometimes five years of research and study.

    You can also find many diploma and certification (认证) program in Canadian universities where the time is generally one year. Some of the Canadian universities are well-regarded worldwide and the degree and diploma obtained from these Canadian universities are recognized globally and promise bright future. After the completion of studies, a person could also find great job offers in Canada itself. International students require a work permit to work on campus.

    Every day, we are moving closer to some kind of artificial intelligence(人工智能). Progress in big data, machine learning and robotics are going to give us a world where computers are effectively intelligent in terms of how we deal with them. Should you be scared by this? Absolutely, but not in the usual “robot overlords” (机器人帝国) kind of way. Instead, the real fear should be about getting human beings wrong, not getting AI right.

    The key to the technology is the ability of computers to recognize human emotions based on the ''activation” of muscles in the face. A computer can identify the positions of facial muscles and use them to infer the emotional state of its user. Then the machine responds in ways that take that emotional state into account.

    One potential application of it is to provide “emotional robots” for the elderly. Having a machine that could speak in a kind way would comfort a lonely older person. That is a good thing, right? But that won't also relieve us from questioning how we ended up in a society that takes care of the elderly because we don't know what else to do with them? Can't we have more humane solutions than robots?

    “Emotion data” aren't the same thing as the real and vivid emotional experiences we human beings have. Our emotions are more than our faces or voices. How can they be pulled out like a thread, one by one, from the fabric(组织) of our being?

    Research programs can come with much philosophical(哲学的) concern, too. From the computers' point of view, what the computing technology captures are emotions, but at its root is a reduction of human experience whose outward expressions can be captured algorithmically (计算上). As the technology is used in the world, it can reframe the world in ways that can be hard to escape from.

    The technology will clearly have useful applications, but once it treats emotions as data, we may find that it is the only aspect of emotion we come to recognize or value. Once billions of dollars floods into this field, we will find ourselves trapped in a technology that is reducing our lives. Even worse, our “emotion data” will be used against us to make money for someone else. And that is what scares me about AI.

    About aspirin (阿司匹林):

    Aspirin is a commonly used drug which can be taken to relieve discomfort caused by numerous medical problems including headaches, toothache, inflammation(发炎) and infections. It is also suitable to treat colds and flu-like symptoms(症状), and to reduce a high temperature.

    Who can take aspirin? Adults and children over 16 years of age.

    Who should not take aspirin? Women who are pregnant, or plan to become pregnant. Aspirin may harm your unborn baby.

    Women who are breast-feeding. Aspirin can pass into your breast milk and may harm your baby. People who have any problems with the way the liver works or with the way the kidneys work.

    How to take aspirin: Take aspirin after meals, with a full glass of water or milk.

    The recommended dose (剂量) ranges from two to three tablets at a time. Never take more than 4g 12 tablets) in any 24 -hour period. You must not take these tablets with any other medicine which contains any aspirin or painkiller.

    How to store aspirin: Keep all medicines out of the reach and sight of children.

    Store aspirin in a cool, dry place, away from direct heat and light.

    Do not put aspirin in the bathroom because the dampness there can cause it to lose its effectiveness. Throw away aspirin that smells strongly of vinegar.

    Possible side effects: Feeling sick, increased risk of bleeding, stomach pain, indigestion and heartburn are common. If these effects continue, contact your doctor. Ringing in the ears, difficulty breathing, dizziness, and mental confusion are rare. If these occur, stop taking the drug and contact your doctor for further advice.

    Nowadays six Amazon Scout delivery robots rolled out in a pilot program in Snohomish County, Wash. The robots carry meals, groceries and packages to homes and offices in this region just north of Seattle. They have appeared on the sidewalks of London, Beijing and other cities and communities worldwide. These machines must overcome pedestrian legs, naughty dogs and broken pavement, which raises some questions.

    These services are gaining attraction as a growing number of city residents expect immediate or scheduled delivery for just about everything. Between 2017 and 2018 online retail sales in the U.S. increased by 16 percent. On the final step of all these deliveries, called the last mile, humans on bicycles, motorized scooters (电动车) or large delivery trucks typically deliver packages. All the vehicles compete for space on busy urban streets. "Deliveries are trending upwards in all crowded city centers, and if city and state leaders don't start thinking about creative solutions like robot deliveries, we can expect even worse traffic jams," says Paul Mackie, director of a transportation policy research center in Arlington.

    A study by this center found 73 percent of delivery vehicles in Arlington were parked outside of authorized areas, often blocking bike lanes and crosswalks. By moving the last step of deliveries from the road to the sidewalk, cities could reduce traffic jams and solve the parking problem entirely, Mackie says.

    Companies such as Amazon are not developing this delivery technology simply to clear up urban traffic. Self-driving vehicles and sidewalk robots could cut down last-mile delivery costs in cities by as much as 40 percent, according to a 2018 report by a consultancy firm. A delivery robot can cost thousands of dollars to manufacture, and most currently require human management and conservation. But in the long run companies that use autonomous delivery vehicles in the next several years could end up saving billions of dollars, the report stated.