A new camera made by a company named Netatmo has facial recognition software(识别系统)that can tell parents at work that their children have returned from school, or that a package has been taken to their home. It can also tell them if a stranger has entered their home.

    Janina Mattausch is a product marketing manager for Netatmo.

    “The common security(安全)cameras at present are not that smart. So, they can tell you if something is moving but they don't necessarily know if it's a human being or, ah, if it's your kids—they don't' know the difference, so they will warn you all the time.”

    When family members enter a home,  the new camera "recognizes" (识别 )  them and sends information to the owner's smartphone. The owner can choose to see the video then or later.  But if an unknown person enters a home, the camera will send the owner a warning that will cause an alarm to sound on the owner's smartphone.

    That is what happened recently to a smart home camera owner named Darrmen. He lives in Paris.

    "On a Friday I was at work, attending a big monthly meeting when my phone warned. At first I told myself 'Oh, it must be a mistake, maybe I have to set the system again. “But the notice on my phone was telling me that there was a movement in my flat and also a face that the software did not recognize.”

    He watched the video and was very surprised by what he saw.

    "I saw a person I did not know with his shoes on. I was watching it live on video. So I felt totally unbelievable, frozen. I asked a workmate to take me back home as fast as possible and I called the police on the way. "

    With the help of the video,  the police found the intruder (闯入者) later that day.

根据短文内容，选择最佳答案，并将选定答案的字母标号填在题前括号内。

    Noah Webster was born on October 16, 1758, in the West Division of Hartford. At that time, few people went to college, but Noah loved to learn so his parents let him go to Yale, Connecticut's only college. He left for New Haven in 1774. Noah's years at Yale were the years of the Revolutionary War.

    Sometimes 70 children of all ages were in one-room schoolhouses with no desks, poor books, and untrained teachers. Noah did not like that. Their books came from England. Noah thought that Americans should learn from American books, so in 1783, Noah wrote his own textbook: A Grammatical Institute of the English Language.

    For 100 years, Noah's book taught children how to read, spell, and pronounce words. It was the most popular American book of its time. Ben Franklin used Noah's book to teach his granddaughter to read.

    When Noah was 43, he started writing the first American dictionary. He did this because Americans in different parts of the country spelled, pronounced and used words differently. He thought that all Americans should speak the same way. He also thought that Americans should not speak and spell just like the English. Noah used American spellings like “color” instead of the English “colour”, “music” instead of “musick” and “center” instead of “centre”. He also added American words that weren't in English dictionaries like “skunk” and “squash”. It took him over 27 years to write his book. When finished in 1828, Noah's dictionary had 70,000 words in it.

    Noah did many things in his life. He worked for copyright laws, wrote textbooks, Americanized the English language, and edited (编辑) magazines. When Noah Webster died in 1843, he was regarded an American hero.

    As years went by, I realized that one of the biggest problems of these adults are worry. A large majority of students were businessmen, executives, salesmen, engineers, accountants: a cross section of all the trades and professions—and most of them had problems! There were women in the classes — businesswomen and housewives. They, too, had problems! Clearly, what I needed was a textbook on how to conquer worry—so again I tried to find one.

    I went to New York's great public library at Fifth Avenue and Forty-second Street and discovered to my astonishment that this library had only twenty-two books listed under the title WORRY. I also noticed, to my amusement, that it had one hundred and eighty-nine books listed under WORMS. Almost nine times as many books about worms as about worry! Surprising, isn't it? Since worry is one of the biggest problems facing mankind, you would think, wouldn't you, that every high school and college would give a course on "How to Stop Worrying"?

    Yet, if there is even one course on that subject in any college in the land, I have never heard of it. No wonder David Seabury said in his book How to Worry Successfully: " We grow up with as little preparation for the pressures of experience as a bookworm asked to do a ballet (芭蕾舞)."

    The result? More than half of our hospital beds are occupied by people with nervous and emotional troubles.

    I looked over those twenty-two books on worry, reposing (靠) on the shelves of the New York Public Library. In addition, I purchased all the books on worry I could find; yet I couldn't discover even one that I could use as a textbook in my course for adults. So I decided to write one by myself.

    The park bench was deserted as I sat down to read beneath the branches of an old willow tree, with good reason to frown, for the world was dragging me down. At this time, a boy approached me. He stood right before me, and said with great excitement, "Look what I found!"

    In his hand was a flower, and what a pitiful sight, with its petals (花瓣) all worn. Wanting him to take his flower and go off to play, I managed a smile and then turned to the other side.

    But instead of leaving, he sat next to my side and placed the flower to his nose and declared, "It really smells pretty and it's beautiful, too. That's why I picked it. Here it's for you."

    The flower before me was dying or dead. But I knew I must take it, or he might never leave. So I reached for the flower, and replied, "Just what I need."

    But instead of placing the flower in my hand, he held it in mid-air. It was then that I noticed that the boy was blind.

    I heard my voice quiver (轻微颤抖), and at the same time my tears shone like the sun. As I thanked him for picking the very best one, he smiled and said, "You're welcome." And then he ran off to play, unaware of the impact he'd had on me.

    I sat there and wondered how he managed to see a self-pitying woman beneath an old willow tree. Perhaps from his heart, he'd been blessed with true sight.

    Through the eyes of the blind boy, I could see the problem was not with the world; the problem was me. And for all of those times I had been blind. From now on, I promised to see beauty and appreciate every second. Then I held the flower up to my nose and breathed its fragrance and smiled as that young boy.

    San Francisco Fire Engine Tours

    San Francisco Winery Tour

    Running: February 1st through April 30th

    This delicious tour goes through the city on its way to Treasure Island where we will stop at the famous Winery SF. Here you can enjoy 4 pours of some of the best wine San Francisco has to offer. (Included in ticket price)

    Departing from the Cannery: Tour times upon request

    Duration ( 时长 ) :2 hours

    Price: $90

    Back to the Fifties Tour

    Running: August 16th through August 31st

    This tour transports you back in time to one of San Francisco's most fantastic periods, the 1950s! Enjoy fun history as we take you through San Francisco for a free taste of ice cream.

    Departing from the Cannery: 5:00 pm and 7:30 pm

    Duration: 2 hours

    Price: $90

    Spooky Halloween Tour

    Running: October 10th through October 31 st Join us for a ride through the historical Presidio district. Authentic fire gear(服装) is provided for your warmth as our entertainers take you to some of the most thrilling parts of San Francisco.

    Departing from the Cannery: 6:30 pm and 8:30 pm

    Duration: 1 hour and 30 minutes

    Price: Available upon request

    Holiday Lights Tour

    Running: December 6th through December 23rd

    This attractive tour takes you to some of San

    Francisco's most cheerful holiday scenes. Authentic fire gear is provided for your warmth as you get into the holiday spirit.

    Departing from the Cannery: 7:00 pm and 9:00 pm

    Duration: 1 hour and 30 minutes

    Advance reservations required.

Hot Technology Products at CES 2020

The consumer electronics show, or CES, presents new technology developments annually. Here are some latest products launched at CES 2020.

The Sero TV

Samsung introduced a TV that can be used to watch video designed for a smartphone. The Sero TV does this by turning itself from the normal TV position to an upright position that looks like the shape of a phone. The V can connect to mobile devices to play video directly from the phone.

Smart waste can

A company called TOWNEW presented; waste can designed for the home that does a lot of the dirty work on its own. When the can is full, the user touches a button to activate the machine's smart abilities. The device then completely closes off the waste bag inside, puts a new one in place, all by itself, and raises its top so the user can pick up and throw away the bag.

Invisible car hood(引擎盖)

Automobile industry company Continental showed off a new technology that seems to make the front end of a vehicle disappear. The technology, called "Transparent Hood," aims to make driving safer and easier. Cameras provide video of the area underneath the vehicle, permitting the driver to see objects and road conditions that might present danger.

Wearable air purifier

A company called Aō Air introduced a wearable air purifier. Designed to be a high-tech face covering to block pollution, the device pulls air through a filtration(过滤)system and then uses fans to create a small area of clean air at its front, allowing the air to be purified-without the need for a solid container.