某人站立在竖直放置的平面镜前，他与像之间的距离是6m，则这个人距镜子　 ____m；他向镜子前进1m后，人和像之间的距离为　 ____m；当他逐渐远离平面镜时，他在镜中的像的大小 ____（选填“变大”、“变小”或“不变”）．

   Mr. and Mrs. Clark are 70 years old. They look young and they are very healthy. Why? Let me tell you. That’s because they have a healthy lifestyle.
   They exercise every day, and every morning they exercise in the park. After that they usually go to the supermarket. They walk there for about half an hour. They don’t take buses. Because they think walking is good for their health. They often take a walk after dinner.
They also have a good eating habit. They drink milk every morning. They eat fruit and vegetables every day. As for meat, they only eat it twice a week. Besides (除…之外) that, they never eat junk food. They don’t drink coffee or cola at all. You see, they look after their health very well.
   Mrs. Clark likes watching soap operas and reading books. She reads books every day. Mr. Clark likes Chinese paintings. They usually go to bed at 9:00 pm and sleep for eight hours every night.

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    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.

    We all admit that modern technology has taken over our lives, for good of course. Young people celebrate the fast speed 1 can move at. But there is a group of people who cannot 2.

    It is the group of people who are caught up between traditional and 3 society, not exactly old and 4 change, but trying very hard to become modernized, ending up being 5in the middle. They are 40 to 60 years old and6the latest iPhone or Samsung phone. They buy an iPad just 7 they can afford to, and to play the same games on a larger screen.

    They are almost 8 the teenagers five years ago, 9 on their phones playing a game or using social media. They're everywhere. And I saw something today that made me extremely 10.

    On a train, a mother was 11 playing a Candy Crush-like game. Her daughter was sitting beside her. The little girl, about five years old, was talking to her mother about her day, shouting the next stop's name cheerily-obviously desperate attempts to get her mother's 12.

    The mother? All she did was nod and say the occasional “mmhm”. With her eyes on the13, she concentrated on completing the level. I watched the girl make a final 14 to get her mom to look at her, and when she had 15 she sighed and fell silent, defeated.

    It broke my heart, and got me 16 —what kind of game can make you 17 that you have the most beautiful thing in the world, a person you love with all your heart? What does it 18when you won't even look into her eyes or listen to her?

    The scene was so familiar years ago when parents 19that their children were too interested in their mobile devices. Look how the tables have turned now. I'm 20 whether to laugh or to cry. But all I can do now is hope that this storm passes.