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 spent 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 front-end (前端程序) to the 35 sites it can connect to, from taxi booking sites to movie review databases. But what’s new is the way it can analyze the intentions of its master or mistress and use those sites to put them into action.

Siri attaches probabilities to the explanation of each word and cross-references (对照检索) with your location and 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 access 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, a topic that occupies some engineers working on artificial intelligence. The more data, and power, you give your virtual assistant, the more damage it could do. 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.

1.What is Siri?

A. A digital e-book reader.

B. A music-sharing software.

C. A voice-controlled website.

D. An artificial intelligence software.

2.When asked “do I need my umbrella today?”, what will Siri probably respond with?

A. The list of umbrella makers.

B. The list of umbrella shops.

C. The local weather forecast.

D. The local climate conditions.

3.Siri is new in that it has the ability ______.

A. to understand what you speak

B. to connect a lot of websites

C. to give a variety of commands

D. to create computerized database

4.What question does Paragraph 4 answer?

A. Does Siri think itself? B. Can I trust you, Siri?

C. Is Siri simple for use? D. Will Siri be popular?

When I was 16 years old and in foster care in Tennessee, people told me I was unadoptable. But I desperately wanted a family. I sought the help of a judge, even the commissioner of the Department of Children’s Services, and was adopted just a week before my 18th birthday.

We have a lot to be grateful for and this holiday season let’s not forget about the more than 415,000 youth in foster care especially older youth. These youth are the most likely to get overlooked for adoption, but they shouldn’t be. They need and deserve a family just as much as young children do. Making an older youth a part of your family can bring just as much a joy as adopting a baby or a younger child—without all the diapers and potty training.

My adoption was life changing and probably the best thing that ever happened to me. I still remember the first gift my parents gave to me. It was a Mickey Mouse key chain with a key to their home. They told me that no matter what happened they would always love me and I’d always have a place to come home to. This is our 17th Thanksgiving together...

My first Thanksgiving with my family was a little overwhelming with lots of extended family including grandparents, aunts, uncles, and cousins. However, it’s when I realized that I would never have to spend another holiday alone and that was truly an amazing feeling.

I was always eager to spend time with my little sister, Beth. She was six when I joined the family. My dad always says he knew we were really sisters, and I was no longer a guest in the house when Beth and I had our first fight. Today, she’s one of my best friends, and I’m her biggest cheerleader.

There were also bittersweet Thanksgivings. One we spent in my mom’s hospital room. It was there that she helped me plan my wedding but passed away three weeks before the ceremony. My dad walked me down the aisle, and my sister was my maid of honor. Because of our bond, we were able to support each other through that challenging time and that’s what family is for—the good and bad times.

It’s nice having my dad and sister to share holidays and special occasions. But they’re even more important when it comes to the little things—like having someone to share my bad day with, celebrate my promotion at work, or help me think through a difficult decision. It’s in these moments that I just can’t imagine being alone in the world.

I’m so glad that I didn’t listen to those people who said I was unadoptable, I’d never find a family, and that I was putting myself out there for rejection. It’s a risk for older foster youth to consider adoption. It’s an opportunity to be rejected once again. But it’s a risk they should take because life doesn’t end at 18. It’s really just beginning.

If you know someone who might consider adopting an older teen, please share my story -- and have him or her think of my family. They didn’t get to see my first steps or watch me be a pilgrim in my second grade Thanksgiving play. But they taught me so many things about life, and were there to watch me walk across the stage when I graduated from college and law school and accompanied me to the White House last year as I was honored for my work helping foster youth.

I look forward to many more Thanksgivings with my family, and I’m eternally thankful they chose me to be a part of their family.

1.What contributes to the author’s feeling that she can’t imagine being alone in the world.

A. The family’s giving the author a Mickey Mouse as a gift.

B. The author’s spending her Thanksgiving with her extended family for 17 years.

C. The mother’s failing to attend the author’s wedding ceremony for her severe disease.

D. The family’s always sharing happiness and sorrow with her.

2.What does adoption for older youth really mean

A. It means not living alone any longer.

B. It means being taken good care of by others.

C. It means being successful in career.

D. It means being loved and a sense of belonging.

3.The underlined sentence “It’s an opportunity to be rejected once again.” in Paragraph 8 means that _________.

A. older teens take the opportunity to be adopted

B. older teens are less likely to be adopted

C. older teens create the opportunity to be adopted

D. older teens are in danger of being adopted

4.What’s the author’s main purpose of writing the passage

A. To express her appreciation for her family.

B. To show sympathy to the unadoptable older youth.

C. To appeal to more people to adopt the older youth.

D. To persuade the readers not to believe others’ words.

完型填空

阅读下面短文,从短文后各题中所给的四个选项(ABCD)中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。

For several years, we lived at the end of a long Texas country road. Every evening when I was away from home on business, my little boy would ask _______of his mother to take his black _____and his daddy’s walking stick, to make the half-mile_______from the house to the fence which_______the beginning of the dirty driveway.

One day, I was busy with my business and was_______for about an hour, completely forgetting about the _______little boy down the road who might be_______for his daddy.

On my way home, the rain was so thick that I could not_______ten feet in front of me. All I could______was finishing my journey and getting out of the rain. _______, the downpour began to abate(减弱). It was only a drizzle(细雨) by the time my car turned the last_______and approached the final street between me and a warm home and nice meal.

_______, I caught sight of my little boy, who was_______an umbrella in one hand, a walking stick in the other, and was wearing the biggest and most beautiful smile ever to lighten the ______ of a little boy.

As I stopped the car and_______the door, he ran into my arms and held me long and hard. He was wet and_______with cold, but he never_______the rain, nor the hour-long wait. He simply said, “Daddy, I missed you. I am so glad you are home.”

Last year, we_______to a wonderful new home provided for a special season in our lives. We no longer have a long country road. _______, I have never forgotten the rainy day and the little boy and his black dog. Often, perhaps a thousand times, that_______has appeared in my mind. Like all events in our lives, it happens once, and must be treasured.

1.A. order B. permission C. praise D. likes

2.A. bag B. dog C. umbrella D. toy

3.A. journey B. flight C. effort D. ride

4.A. discovered B. explained C. marked D. described

5.A. controlled B. trained C. delayed D. bothered

6.A. useful B. grateful C. careful D. faithful

7.A. waiting B. sending C. searching D. calling

8.A. drive B. see C. feel D. hear

9.A. stick to B. think of C. pick up D. hold out

10.A. In fact B. In surprise C. At once D. At last

11.A. moment B. corner C. street D. way

12.A. All of a sudden B. Believe it or not C. In other words D. For seconds

13.A. holding B. opening C. finding D. lifting

14.A. body B. head C. face D. hand

15.A. closed B. locked C. knocked D. opened

16.A. worrying B. crying C. trembling D. complaining

17.A. noticed B. doubted C. judged D. mentioned

18.A. moved B. turned C. returned D. traveled

19.A. Therefore B. Besides C. Otherwise D. However

20.A. time B. scene C. act D. sight

Below is a selection from a popular science book.

If blood is red, why are veins (静脉) blue?

Actually, veins are not blue at all. They are more of a clear, yellowish color. Although blood looks red when it’s outside the body, when it’s sitting in a vein near the surface of the skin, it’s more of a dark reddish purple color. At the right depth, these blood-filled veins reflect less red light than the surrounding skin, making them look blue by comparison.

Which works harder, your heart or your brain?

That kind of depends on whether you’re busy thinking or busy exercising. Your heart works up to three times harder during exercise, and shifts enough blood over a lifetime to fill a supertanker(超级油轮). But, in the long run, your brain probably tips it, because even when you’re sitting still your brain is using twice as much energy as your heart, and it takes four to five times as much blood to feed it.

Why do teeth fall out, and why don’t they grow back in grown-ups?

Baby (or “milk”) teeth do not last long; they fall out to make bigger room for bigger, stronger adult teeth later on. Adult teeth fall out when they become damaged, decayed(腐烂)and infected by bacteria. Once this second set of teeth has grown in, you’re done. When they’re gone, they are gone. This is because nature figures you’re set for life, and what controls regrowth of your teeth switches off.

Do old people shrink(收缩)as they age?

Yes and no. Many people do get shorter as they age. But, when they do, it isn’t because they’re shrinking all over. They simply lose height as their spine (脊柱) becomes shorter and more curved due to disuse and the effect of gravity (重力). Many (but not all) men and women do lose height as they get older. Men lose an average of 3-4 cm in height as they age, while women may lose 5 cm or more. If you live to be 200 years old, would you keep shrinking till you were, like 60 cm tall, like a little boy again? No, because old people don’t really shrink! It is not that they are growing backwards—their legs, arms and backbones getting shorter. When they do get shorter, it’s because the spine has shortened a little. Or, more often, become more bent and curved.

Why does spinning make you dizzy?

Because your brain gets confused between what you’re seeing and what you’re feeling. The brain senses that you’re spinning using special gravity-and-motion-sensing organs in your inner ear, which work together with your eyes to keep your vision balance stable. But when you suddenly stop spinning the system goes out of control, and your brain thinks you’re moving while you’re not.

Where do feelings and emotions come from?

Mostly from an ancient part of the brain called the limbic system(边缘系统). All mammals have this brain area — from mice to dogs, cats, and humans. So all mammals feel basic emotions like fear, pain and pleasure. But since human feelings also involve other, newer bits of the brain, we feel more complex emotions than any other animal on this planet.

If exercise wears you out, how can it be good for you?

1.What is the color of blood in a vein near the surface of the skin?

A. Blue B. Light yellow

C. Red D. Dark reddish purple

2. Why do some old people look a little shrunken as they age?

A. Because their spine is in active use.

B. Because they are more easily affected by gravity.

C. Because they keep growing backwards.

D. Because their spine becomes more bent.

3.Which of the following statements about our brain is true?

A. In the long run, our brain probably works harder than our heart.

B. When our brain senses the spinning, we will feel dizzy.

C. The brains of the other mammals are as complex as those of humans.

D. Our feelings and emotions come from the most developed area in our brain.

4. What is the main purpose of the selection?

A. To give advice on how to stay healthy.

B. To provide information about our body.

C. To challenge new findings in medical research.

D. To report the latest discoveries in medical science.

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