Siri is an artificial intelligence (AI) that you can carry around in the pocket, where it waits patiently to be told what to do. In the week we spend together, my AI assistant has performed admirably in finding me restaurants, or the location of the nearest coffee shop.

    A typical command might be: “Reserve a table for two at a good French restaurant in San Francisco.” Siri responds by presenting a list of top-rated restaurants that can be booked on OpenTable.com. If you say which time you want, it can book you a table without your lifting a finger. In some ways Siri is just a fancy program to the 35 websites it can connect to, from taxi booking websites to movie review databases (数据库). But what's new is the way it can analyze the intentions of its users and use those sites to put them into action.

    Siri attaches possibilities to the explanation of each word and compare your location with other data, some of which you must provide yourself. To send email reminders, Siri obviously needs to know your email address. To “find me the flower shop closest to work”, it needs to know where you work. To pay bills or buy airline tickets, it would need to be linked to your credit card.

    That raises the question of how far we are willing to trust a piece of software that can go and do things for us based on what it “thinks” we mean. Siri may be simple, and always shows its explanation of a command before carrying it out. But it gives users a preview of a new balance between privacy, trust and convenience that the expansion of AI into everyday life is likely to develop.

    It was a simple letter asking for a place to study at Scotland's oldest university which helped start a revolution in higher education. A 140-year-old letter written by a lady calling for her to be allowed to study medicine at St Andrews University has been discovered by researchers. Written by Sophia Jex-Blake in 1873, the seven-page document, which urged the university to allow women to study medicine at the institution, was released yesterday on International Women's Day.

    The document was discovered buried in the university archives (档案) by part-time history student Lis Smith, who is completing her PhD at St Andrews Institute of Scottish Historical Research. She said: “We knew that Sophia Jex-Blake and her supporters, in their effort to open up university medical education for women, had written to the Senatus Academicus (校评议委员会) at St Andrews in an attempt to gain permission to attend classes there, but we didn't know documentary evidence existed. While searching the archives for information about the university's higher certificate for women, I was astonished to come across what must be the very letter Jex-Blake wrote.”

    In the letter, Sophia and her supporters offered to hire teachers or build suitable buildings for a medical school and to arrange for lectures to be delivered in the subjects not already covered at St Andrews. Although her letter was not successful, it eventually led to the establishment of the Ladies Literate in Arts at St Andrews, a distance-learning degree for women. The qualification, which ran from 1877 until the 1930s, gave women access to university education in the days before they were admitted as students. It was so popular that it survived long after women were admitted as full students to St Andrews in 1892.

    Ms Jex-Blake went on to help establish the London School of Medicine for Women in 1874. She was accepted by the University of Berne, where she was awarded a medical degree in January 1877. Eventually, she moved back to Edinburgh and opened her own practice.

    That cold January night, I was growing sick of my life in San Francisco. There I was, walking home at one in the morning after a tiring practice at the theatre. With opening night only a week away, I was still learning my lines. I was having trouble dealing with my part-time job at the bank and my acting at night at the same time. As I walked, I thought seriously about giving up both acting and San Francisco. City life had become too much for me.

    As I walked down empty streets under tall buildings, I felt very small and cold. I began running, both to keep warm and to keep away from any possible robbers. Very few people were still out except a few sad-looking homeless people under blankets.

    About a block from my apartment, I heard a sound behind me. I turned quickly, half expecting to see someone with a knife or a gun. The street was empty. All I saw was a shining streetlight. Still, the noise had made me nervous, so I started to run faster. Not until I reached my apartment building and unlocked the door did I realize what the noise had been. It had been my wallet falling to the sidewalk.

    Suddenly I wasn't cold or tired anymore. I ran out of the door and back to where I'd heard the noise. Although I searched the sidewalk anxiously for fifteen minutes, my wallet was nowhere to be found. Just as I was about to give up the search, I heard the garbage truck(垃圾车) pull up to the sidewalk next to me. When a voice called from the inside,  "Alisa Camacho?" I thought I was dreaming. How could this man know my name? The door opened, and out jumped a small red-haired man with an amused look in his eye. "Is this what you're looking for?" he asked, holding up a small square shape.

    It was nearly 3 a.m. by the time I got into bed. I wouldn't get much sleep that night, but I had gotten my wallet back. I also had gotten back some enjoyment of city life. I realized that the city couldn't be a bad place as long as people were willing to help each other.

    Buying new clothes isn't an easy matter for everyone, here are some tips(建议) for you .When you want to go shopping, decide how much money you can spend on new clothes. Think about the kind of clothes you really need. Then look for those clothes you really need. Then look for those clothes on sale.

    There are labels(标签) inside all new clothes. The labels tell you how to take care of your clothes. The label for a shirt may tell you to wash it in warm water. A sweater label may tell you to wash in cold water. The label on a coat may say "dry clean only", for washing may ruin this coat. If you do as the directions(说明)on the label, you can keep your clothes looking their best for a long time.

    Many clothes today must be dry cleaned. Dry cleaning is expensive. When buying new clothes, check to see if they will need to be dry cleaned. You will save money if you buy clothes that can be washed.

    You can save money if you buy clothes that are well-made. Well-made clothes last longer. They look good even after they have been washed many times. Clothes that cost more money are not necessarily better made. They do not always fit better. Sometimes less expensive clothes look and fit better than more expensive clothes.

    In the book The Best Little Girl in the World, Kessa has a serious eating disorder (进食障碍) called anorexia nervosa. But she is not alone. Many people have this eating disorder.

    In the beginning of her story, Kessa is a normal 15-year-old girl. She is good at many things, especially dancing. She has danced for many years and loves it. One day her dance teacher tells her to continue eating right, but maybe lose a few pounds. Once Kessa hears this, she takes things too far. Instead of cutting down on snacks and junk food, she decides not to eat at all. She does not eat breakfast, lunch, or dinner. She begins losing weight and becomes slimmer (更加苗条的) and slimmer. But she loses weight to a point where she is unhealthy.

    As her poor eating habits continue, her parents start getting as much help as possible to cure (治疗) their beautiful daughter. But it is just as hard for Kessa's parents to deal with her disorder as it is for her.

    Every day she exercises to lose more pounds and plans what and when she will eat. Her parents try everything, but Kessa decides not to have any fat on her body.

    Kessa's doctor and parents finally take her to the hospital. She is now so thin that she can hardly walk. There, she is given good care.

    In the rest of the book, Kessa goes through a lot of trouble in order to cure her eating disorder. This book, I think, can help to prevent people from doing this to themselves. It shows the trouble that people go through just to be slimmer, and all the terrible things they must experience to be cured. It is a book I think every teenager should read.

If you're always comparing yourself to your peers，you might be low in confidence and unsure of yourself.Here are some tips on how to stop comparing yourself to others.

Write down your positive traits.When you ignore your abilities，it becomes easier to compare yourself to others.You might focus on their strengths and ignore your own completely. {#blank#}1{#/blank#}By being aware of your best qualities，you can learn to love yourself and build up your self﹣confidence.

Keep a gratitude journal.A gratitude journal helps you recognize the things you may take for granted so you can fully appreciate them.To start journaling，reflect on the little things that bring you joy. {#blank#}2{#/blank#}Explain how they influence your life in detail.For example，if you jog in the park every day，you might express how you're grateful for your health and how jogging helps you overcome stress at work.

{#blank#}3{#/blank#}Instead of focusing on your "weaknesses"，reflect on the areas you can improve.Take advantage of all chances to improve your skills and techniques.Don't be afraid to ask other people for help along the way.Only by making efforts to improve your abilities can you make yourself happy.

Compete against yourself. {#blank#}4{#/blank#} Instead，use comparison to become an improved version of yourself.Set goals for yourself and try to improve your own personal best.When you set a goal for yourself，track your progress so that you can see how you are moving toward that goal.That way

Overcoming comparison is a continuous process，but it is possible! {#blank#}5{#/blank#}

A.Take control over your life.

B.Work on improving your abilities.

C.Don't compare your life to other people's.

D.Write down why you're grateful for them.

E.With time and practice，you can become the best version of yourself.

F.Appreciate others and use their success to motivate you to work hard.

G.To avoid this negative behavior，make a list of your strengths and talents.