A boy trembled in the cold winter, wrapping his arms wound {#blank#}1{#/blank#}(he) on a bus stop bench. He wasn't wearing warm clothes and the temperature was -10℃.{#blank#}2{#/blank#} a heartbreaking scene it was! But the good deeds of the ordinary people {#blank#}3{#/blank#}witnessed the 11-year-old Johannes were both joyous and inspiring. A woman, {#blank#}4{#/blank#} (sit) next to the boy, discovered he was on a school trip and was told to meet his teacher at the bus stop. She {#blank#}5{#/blank#} (selfless) covered his shoulders with her own coat.{#blank#}6{#/blank#} (late), another woman at first gave him her scarf, and then wrapped him in her large jacket. Throughout the day, more and more people offered Johannes their gloves and even the coats off their backs.

    Actually, it was a {#blank#}7{#/blank#}(hide) camera experiment by Norwegian charity SOS Children's Village as part of their winter campaign to collect {#blank#}8{#/blank#} (donate) to help Syrian children get through the winter. Synne Ronning, the information head of the organization, also {#blank#}9{#/blank#}（note） that the child was a volunteer who was never {#blank#}10{#/blank#}any danger during the filming.

    China's first artificial intelligence (Al) textbook for high school students {#blank#}1{#/blank#}(bring) out last week, following a plan by central government {#blank#}2{#/blank#}(include) Al courses in primary and secondary school.

    The nine - chapter textbook, {#blank#}3{#/blank#}(name) " Fundamentals of Artificial Intelligence" , was written by outstanding {#blank#}4{#/blank#}(scholar) from well - known schools nationwide, under the joint efforts by the research center for MOOC at East China Normal University and Al startup SenseTime. It includes the history of Al and how the technology can be applied in areas such as facial recognition, auto driving and public security.

    "The textbook focuses not only on basics of Al, but on {#blank#}5{#/blank#}(practice) use of Al in daily life," said Chen Yukun, a professor at East China Normal University, {#blank#}6{#/blank#} is also a contributor to the book.

    Up till now, about 40 high schools across the country {#blank#}7{#/blank#}(undertake) the task of being the first group of Al high education pilot program {#blank#}8{#/blank#} introducing the textbook in the curriculum. "The Al sector is facing a talent shortage {#blank#}9{#/blank#}(global). The publication of the book is {#blank#}10{#/blank#}breakthrough as it takes Al technology out of the 'Ivory tower' and makes it part of high school learning," said Lin Dahua, a professor at the Chinese University of Hong Kong.

    "Carnival" comes from tow Latin words, {#blank#}1{#/blank#}(mean) "No more meat". In Europe, {#blank#}2{#/blank#} it began, people saw carnival as the last chance to have fun at the end of the winter season. {#blank#}3{#/blank#}(have) fun meant eating, drinking and dressing up. The most famous carnival was in Venice. At first, it lasted for just one day. {#blank#}4{#/blank#}time passed, the carnival period was extended. People walked around the street wearing masks, doing {#blank#}5{#/blank#}they wanted without {#blank#}6{#/blank#}(recognize).

    Later, wearing masks was limited by law. Finally, at the end of the 18th century, masks {#blank#}7{#/blank#}(ban) completely. But in {#blank#}8{#/blank#}late 1970s, the tradition was revived by students and the festival was developed for tourists. Today, carnival in Venice is celebrated for five days in February. Hotels are {#blank#}9{#/blank#}(full) booked and the narrow streets are crowded {#blank#}10{#/blank#}wonderful costumes. If the key to Rio is music and movement, then in Venice it is the mystery of masks.

    One day, Nick invited his friends to supper. He was cooking some delicious food in the kitchen. Suddenly, he {#blank#}1{#/blank#} (find) that he had run out of salt. So Nick called to his son, "Go to the village and buy some salt, but pay a fair price for it: neither too much {#blank#}2{#/blank#}too little.

    His son looked surprised. "I can understand why I shouldn't pay too much, Father, but if I can pay less, {#blank#}3{#/blank#}not save a bit of money?

    "That would be a very {#blank#}4{#/blank#} (reason) thing to do in a big city, but it could destroy a small village like {#blank#}5{#/blank#} (us), Nick said.

    Nick's guests, {#blank#}6{#/blank#}had heard their conversation, asked why they should not buy salt more cheaply if they could. Nick replied, "The only reason a man would sell salt {#blank#}7{#/blank#}a lower price would be because he was desperate for money. And anyone who took advantage of that situation would be showing a lack of respect for the sweat and struggle of the man who worked very hard to produce it."

    "But such a small thing couldn't {#blank#}8{#/blank#} (possible) destroy a village."

    "In the beginning, there was only {#blank#}9{#/blank#}very small amount of unfairness in the world, but everyone added a little, always {#blank#}10{#/blank#} (think) that it was only small and not very important, and look where we have ended up today."

Are you on{#blank#}1{#/blank#} diet? Then maybe you should consider{#blank#}2{#/blank#}(sit) by the window the next time you eat out. A new book claims that{#blank#}3{#/blank#}you sit in a restaurant can affect how much you consume.

A new research found that people sitting farthest from the front door ate the fewest salads and were 73 percent{#blank#}4{#/blank#}(likely) to order dessert.

The diners{#blank#}5{#/blank#}(seat) at a dark table ate heavier food and ordered more of it, {#blank#}6{#/blank#}those sitting at bright bar tables ordered more salads and fewer desserts.

According to the researchers, the darker it is, the more invisible you {#blank#}7{#/blank#}feel, the less easy it is to see how much you're eating and the less guilty you are when you eat more.

In contrast, {#blank#}8{#/blank#}(expose) yourself to the sunlight, people or trees outside might make you more aware {#blank#}9{#/blank#} you look, might make you think about walking or might make you want a green salad.

The researchers also noted that slim diners chewed around 15 times per mouthful, three chews more than heavier diners. By eating more slowly, the diner consumes less in the time{#blank#}10{#/blank#} takes for the brain to register satisfaction.