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.

    I left university with a good degree in English Literature, but no sense of what I wanted to do. Over the next six years, I was treading water, just trying to earn an income. I tried journalism, but I didn't think I was any good, then finance, which I hated. Finally, I got a job as a rights assistant at a famous publisher. I loved working with books, although the job that I did was dull.

    I had enough savings to take a year off work, and I decided to try to satisfy a deep-down wish to write a novel. Attending a Novel Writing MA course gave me the structure I needed to write my first 55,000 words.

    It takes confidence to make a new start — there's a dark period in-between where you're neither one thing nor the other. You're out for dinner and people ask what you do, and you're too ashamed to say, “Well, I'm writing a novel, but I'm not quite sure if I'm going to get there.” My confidence dived. Believing my novel could not be published ,

    I put it aside.

    Then I met an agent（代理商）who said I should send my novel out to agents. So, I did and, to my surprise, got some wonderful feedback. I felt a little hope that I might actually become a published writer and, after signing with an agent, I finished the second half of the novel.

    The next problem was finding a publisher. After two-and-a-half years of no income, just waiting and wondering, a publisher offered me a book deal — that publisher turned out to be the one I once worked for.

    It feels like an unbelievable stroke of luck — of fate, really. When you set out to do something different, there's no end in sight, so to find myself in a position where I now have my own name on a contract of the publisher — to be a published writer — is unbelievably rewarding.

    After disappearing for over 19 years, measles (麻疹) is making a comeback in America. Since January 2019, the disease has infected more than 700 people, mostly small children, and the number seems to be increasing daily.

    Measles is an infectious disease that typically begins with a high fever, cough, runny nose, and red, watery eyes. Many people also lose their appetites and feel sleepy. About three to four days after the symptoms start, the person breaks out into a rash (皮疹) that begins on the face at the hairline and then spreads to the neck and the rest of the body.

    In healthy people, the recovery, which takes between two to three weeks, starts soon after the rash begins. However, for about 40 percent of patients — mainly kids under the age of five or older adults — the disease often leads to pneumonia (肺炎), which, if left untreated, could result in death.

    The recent outbreak is thought to have been caused by travelers picking up the virus in a country where the disease is still existing and exposing it to an unvaccinated (未接种的) community in the US. In New York, it was carried back by someone who had recently visited Israel, which is currently undergoing a significant measles, while in Washington, "patient zero" was infected by a type that is currently circulating in Europe.

    To limit the spread of the disease before it gets out of hand, US health officials are attempting to educate communities with high rates of unvaccinated children. They are also urging adults to consult with their physicians and get injected if considered necessary by the doctor.

    Hopefully, health officials worldwide will be able to convince parents that vaccinating their children will protect, not harm, them.

    Reuel Tolkien (1892－1973), the British linguist, writer. He created a fantasy novel "The Lord of the Rings" the well­known trilogy (三部曲).

    Tolkien was born in Bloemfontein, South Africa. When he was 4 years old, his father died and his family moved back to England. Tolkien graduated from Oxford University when he was 23 years old, and participated in the First World War. During the war, Tolkien suffered from "trench fever" and stayed in the hospital until the end of World War Ⅰ. It was the days in the hospital that he began his writing career first.

    After the war, Tolkien became a linguist. He was an editor of the "New English Dictionary" of 1918－1920. However, he was more researching into Anglo­Saxon language which makes his extensive contacts in Britain and the Nordic spread all over the folklore and mythology.

    In 1937, Tolkien completed his first work "The Hobbit". Although this was a fairy tale, it was also suitable for adults to read. Because of good sales, the publisher Allen & Unwin convinced Tolkien to write its sequel. This encouraged Tolkien to complete his most famous works the epic (史诗) trilogy "The Lord of the Rings". The works of writing went on for almost a year with the support from his good friend Lewis.

    At the beginning "The Lord of the Rings" was similar works for children, but after that writing style quickly became serious and dark. "The Lord of the Rings" was one of the most popular literary works in the 20th century in terms of sales and readers' evaluation. Tolkien's influence is important, for the success of "The Lord of the Rings" makes the fantasy novels of this literature genre (体裁) develop rapidly.

A planet the size of Jupiter has been discovered and it is one of the hottest ones known to us. This has made scientists think about how planets are formed.

Planets such as Earth have more oxygen than carbon, but what if the composition（组成）is just the opposite? This is a question opened up by a recent discovery of a diamond planet by US and UK scientists. The planet is 1200 light years away from Earth and was observed using NASA's Spitzer Space Telescope. Dr Marek Kukula explained that researchers initially used the Super WASP(Wide Angle Search for Planets) robotic observatories operating continuously, all year around. They detected the planet, then it was observed with the Spitzer Space Telescope, which detected the heat coming from the planet, and from that heat signature they can tell what this planet is made from.

The planet is very different to Earth. "It's giant planet," explains Dr Kukula, "a gas planet, a bit like Jupiter in our solar system. But the interesting thing that they've discovered is that it has a very different composition to the planets in our solar system. This planet has more carbon than oxygen." This suggests that there is more than one way to make a solar system and the range of planets in the universe could be much wider than previously thought.

Dr Kukula says that if there are smaller planets in the same solar system with a similar composition, rich in carbon, their rocks could be rich in minerals such as carbon and diamonds, unlike Earth which has silica (硅石), the sand that rocks on Earth are made from. "This is where this diamond planet idea comes from; they haven't actually detected a diamond planet yet," explains Dr Kukula.it' s hypothetical (假设的), "but you can imagine strange landscapes with black graphite rocks lying around and the surface could be covered with sticky liquids instead of water".