On one such day,I was walking from class across the school to catch the school bus home,with my head down,fighting tears of total hopelessness,when a young man came down the sidewalk toward me.Though I had never seen him before,I did not want him to see that I was in such low spirits,so I turned my head away and hoped to hurry past.I thought he'd walk on by,but he moved until he was directly in front of me,waited until I looked up,and then smiled.

    Looking into my eyes,this stranger spoke in a quiet voice："Whatever is wrong will pass.You're going to be OK,just hang on."   He,then,smiled again and walked away.

    I can't explain the effect of that man's unexpected kindness and caring! He gave me the one thing that I'd lost completely—hope.I looked for him in our school to thank him,but never saw him again.

    That was thirty years ago.And I've never forgotten that moment.Over the years,whenever I see someone who is in trouble,I will always think of that young man and try to give a flash of hope in the dark wherever I can.I carry things for people when they are too heavy for them,sit with naughty babies in the waiting room while their mothers are busy,or talk to tired couples at the checkout line or it could be anything.

    If you keep your head up,your heart will show you the place that needs hope.

  增加：在缺词处加一个漏字符号（∧），并在下面写出该加的词。

  删除：把多余的词用斜线（﹨）划掉。

  修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意：1．每处错误及其修改均仅限一词；

2．只允许修改10处，多者（从第11处起）不计分。

Dear Sir/Madam,

    I'm one of your customer, I ordered a set of books on your website two weeks ago, but I didn't received it until yesterday. And much to my disappointment, the books were too poorly packed up that the cover of one book were torn. To make matters worse, it is not a complete set, as I found one book missed.

    I'm sorry to have received such poorly service, and I believe I have every right ask you to deal with this problem. I hope you either return my money back or deliver a new set of books to me. Beside, I'd like to be informed of the process of your deal with my complaint.

    I'm looking forward to your reply.

Li Hua

    As for old people, some of the applications are hard to use because they didn't grow up with them. They don't have simple models of how they should work, what to do when something doesn't work or where to go for help. We make it as easy as possible to be used for people who are not familiar with the technology.

    I think there is huge potential and we are designing it. The ability to connect to friends, who remember the same movies and news and music, is really important, especially as people get old. They end up in retirement homes and they aren't always close to their friends. Allowing the network to help them connect with friends and family is a really powerful thing.

    My mother is an enthusiastic user of the Internet，although it took me years to get her to use e-mail. She was born with normal hearing, but lost it when she was 3.She was totally deaf for many years, until age 53, when she got ear aids. They work really well. That is a big change for her. But before then, her friends couldn't call her on the phone, so they insisted she use e-mail to communicate with them.

    Young people don't even think of the Internet as technology. It's just there, and they use it. There's been a very interesting change in communications styles between old people and young people. There are some kids who are now in their teens and aren't willing to make phone calls. And they think of e-mail as old-fashioned and slow.

    The reason why teens don't make phone calls seems to be that they don't know what to say. When they call they often stop for a while. They don't know what to say，and there's this silence. On the other hand, texting is considered proper, and it's okay if you don't answer. You might have been distracted. It's not considered rude. But it is considered strange if you're in this kind of voice conversation and simply stop talking.

    Reading may be fundamental, but how the brain gives meaning to letters on a page has been a mystery. Two new studies fill in some details on how the brains of efficient readers handle words. One of the studies, published in the April 30 Neuron, suggests that a visual-processing area of the brain recognizes common words as whole units. Another study, published online April 27 in PLOSONE, makes it known that the brain operates two fast parallel systems for reading, linking visual recognition of words to speech.

    Maximilian Riesenhuber, a neuroscientist at Georgetown University in Washington, D. C. , wanted to know whether the brain reads words letter by letter or recognizes words as whole objects. He and his colleagues showed sets of real words or nonsense(无意义的词语)words to volunteers undergoing FMRI scans. The words differed in only one letter, such as “farm” and “form” or “soat” and “poat”, or were completely different, such as “farm” and “coat”or “poat” and “hime”.The researchers were particularly interested in what happens in the visual word form area, or VWFA, an area on the left side of the brain just behind the ear that is involved in recognizing words.

    Riesenhuber and his colleagues found that neurons(神经元)in the VWFA respond strongly to changes in real words. Changing “farm” to “form”, for example, produced as great a change in activity as changing “farm” to“coat”, the team reports in Neuron. The area responded slowly to single-letter changes in made-up words.

    The data suggests that readers grasp real words as whole objects, rather than focusing on letters or letter combinations. And as a reader's exposure to a word increases, the brain comes to recognize the shape of the word. “Meaning is passed on after recognition in the brain”, Riesenhuber says.

    The researchers don't yet know how longer and less familiar words are recognized, or if the brain can be trained to recognize nonsense words as a unit.

    ORLANDO, Fla. — Florida's busiest airport is becoming the first in the nation to require a face scan of passengers on all arriving and departing international flights, including US citizens, according to officials there. The expected announcement Thursday at Orlando International Airport alarms some privacy supporters. They say there are no formal rules in place for handling data collected from the scans, nor formal guidelines on what should happen if a passenger is wrongly prevented from boarding.

    Airports in Atlanta, Boston, Chicago, Houston, Las Vegas, Miami, New York and Washington D.C. already use face scans for some departing international flights, but they don't involve all international travelers at the airports like the program's expansion in Orlando would. The image(图像) from the face scan is compared to a Department of Homeland Security database that has images of people who should be on the flight, in order to check the traveler's identity.

    US citizens at these airports can refuse to be scanned, but the agency “doesn't seem to be doing an adequate job letting Americans know they can,” said Harrison Rudolph, an expert at the Center on Privacy & Technology at the Georgetown University Law Center.

    US citizens at the Orlando airport will be able to refuse face scans just like at the other airports if they don't want to provide their photograph, Jennifer Gabris, a spokeswoman for the US Customs and Border Protection said in an email. However, a notice about a possible rule change for the program states that “US citizens may be required to provide photographs upon entering or departing the United States.”

    “We're not talking about one gate,” Rudolph said. “We're talking about every international departure gate, which is a huge expansion of the number of people who will be scanned. Errors tend to go up as uses go up.”

    Two US senators（参议员） last month sent a letter to the Department of Homeland Security, urging that formal rules be carried out before the program is expanded. “It will also ensure a full test of this potentially sweeping program that could influence every American leaving the country by airport,” said the letter from the senators.

There are many great GPS watches for you on the market. Now I'd like to recommend four such watches to you.

Polar Grit X Pro

Sapphire glass, which is tough and scratch- resistant, is typically an add-on or upgrade feature, so you'll be glad to know that the Polar Grit X Pro comes with this durable screen material. On top of that, Polar claims that the watch will withstand temperatures of -68 degrees up to 122 degrees F so you can stay connected on hikes in even the most extreme places in the world.

Price: $500

Amazfit GTR 3 Pro

If you want a watch to double as your fitness tracker and everyday watch, the Amazfit GTR 3 Pro is a good bet. It has 150+ sports modes. It pairs with your Alexa device, can make Bluetooth phone calls, has navigation, and tracks health measures like blood oxygen and stress levels, heart rate, and menstrual cycles.

Price: $230

Fitbit Charge 5

The Fitbit Charge 5 is perfect for those who only need a GPS watch to track basic fitness activities and personal health features like stress, heart health, sleep, and oxygen saturation. The price reflects that there are only 20 exercise modes and a water-resistance depth of 50 meters.

Price: $150

SkyCaddie LX5

This Bluetoothand Wi-Fi-enabled watch comes with 35,000 pre-loaded SkyGolf maps of golf courses worldwide, allowing you to reference the most detailed map of a golf course while you play.

Price: $300