Chimps(黑猩猩) will cooperate in certain ways, like gathering in war parties to protect their territory. But beyond the minimum requirements as social beings, they have little instinct (本能) to help one another. Chimps in the wild seek food for themselves. Even chimp mothers regularly decline to share food with their children, who are able from a young age to gather their own food.

In the laboratory, chimps don't naturally share food either. If a chimp is put in a cage where he can pull in one plate of food for himself or, with no great effort, a plate that also provides food for a neighbor to the next cage, he will pull at random —he just doesn't care whether his neighbor gets fed or not. Chimps are truly selfish.

Human children, on the other hand are naturally corporative. From the earliest ages, they decide to help others, to share information and to participate in achieving common goals. The psychologist Michael Tomasello has studied this cooperativeness in a series of experiment with very young children. He finds that if babies aged 18 months see an unrelated adult with hands full trying to open a door, almost all will immediately try to help.

There are several reasons to believe that the urges to help, inform and share are not taught, but naturally possessed in young children. One is that these instincts appear at a very young age before most parents have started to train their children to behave socially. Another is that the helping behaviors are not improved if the children are rewarded. A third reason is that social intelligence develops in children before their general cognitive（认知的）skills, at least when compared with chimps. In tests conducted by Tomasello, the human children did no better than the chimps on the physical world tests but were considerably better at understanding the social world.

The core of what children's minds have and chimps' don't is what Tomasello calls shared intentionality. Part of this ability is that they can infer what others know or are thinking. But beyond that, even very young children want to be part of a shared purpose. They actively seek to be part of a “we”, a group that intends to work toward a shared goal.

Mobile World Congress

    Mobile World Congress (MWC) is the world's biggest and best mobile industry event consisting of a big exhibition, an award-winning conference, outstanding networking opportunities and the Glomo Awards.

    Who is MWC for?

    MWC is a B2B event for anyone and everyone in mobile and those in nearby industries who want to discover how mobile technology can benefit their industries. In short, anyone in business will find relevant learning and networking opportunities to make the trip to Barcelona worthwhile.

    Where does MWC take place?

    Mobile World Congress takes place each year in the Mobile World Capital Barcelona, Spain, at twolocations: Fira Gran Via and Fira Montjuic. Fira Gran Via is a cutting-edge exhibition and conference facility(场所)located just 10 km from the Barcelona airport. The physical address of it is：

    Fira Graft Via Av. Joan Carles I, 64 08908 L'Hospitalet de Llobregat, Barcelona

    Unless otherwise noted, all events take place at Fira Gran Via. However, selected events, including 4YFN, will take place at Fira Montjuic, a historical location 4 km down the road.

    Fira Montjuic Avda. Reina Maria Cristina, s/n 08004 Barcelona

    Please do not send any MWC materials or shipments to the above addresses as they will be refused.

    When is it?

    Mobile World Congress occurs at die end of February each yea£. Our 2017 event will begin Monday, 27 February and continue through Thursday, 2 March, If you're planning your travel now, note we encourage attendees to arrive in Barcelona and collect their badges (徽章) over the weekend before the event, 25-26 February.

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。

    I climbed Kilimanjaro with Lava Expeditions (探险队) during the rainy season.

    I flew to Nairobi in Kenya and spent several days there. At my hotel in Nairobi I met the rest of the group with whom I would spend the next week. We all travelled on the bus together for a 6-hour journey into Tanzania and then Arusha, a quiet town.

    After we arrived at our hotel in Arusha, we had dinner and a few drinks. Then we were introduced to more members including Taddeus Minja, the main guide, who was very experienced — climbing Kilimanjaro runs through the generations (代) of his family.

    The next day the Lava Expeditions members checked if we had the correct and enough clothing for our expedition on Kilimanjaro. Only one person needed to bring more clothes.

    After that we set off, walking in the rain through the beauty of the rainforest, all the way to the first camp. I was happy the next few days as the view was so wonderful and changed every day. I suffered a little during the trip and I felt so tired. But the members of Lava Expeditions provided me with lots of encouragement, which was one of the best memories. Finally we reached the top of Kilimanjaro in bright blue skies.

I felt excited about climbing Kilimanjaro and the feeling didn't change during my trip. Lava Expeditions looked after me so well that I was deeply thankful for their help.

Are Happy Meals Really Happy?

    Don't we all know a “Happy Meal” when we see one--the famous boxed meal that includes a hamburger, kid-sized French fries, fruits and milk, served with a toy that's extremely popular with children who love to collect them?

    A Happy Meal is a form of kids' meal sold at a certain fast-food chain since 1979. A toy is included in the meal, both of which are usually contained in a box or paper bag. However, collectors of these little toys will not get them any longer, since the company will replace toys with books and each of these books will mainly pass on nutritional messages.

    Happy Meals are extremely popular with kids, especially for their collectable toys, when you consider that over 1.3 billion of these packages are sold each year. These packages have been very controversial. Health supporters believe that drawing kids to these meals with toys is a clever way of promoting unhealthy food choices. They see it as an advertising a strategy of “catching its customers young”--a move that has paid off very well for the fast-food company.

    Child development experts say that food habits get formed in children by age six and continue through to their adult life. Fatty and sugary foods such as those served in Happy Meals are believed to play a big role in growing health problems such as obesity and diabetes. Public health care costs have gone up and untold amounts of money have been spent on coping with these health problems. On November 2, 2010, the San Francisco Board of Supervisors passed a law requiring that children's meals sold in restaurants must meet certain nutritional standards before they could be sold with toys, to overcome the problem of childhood obesity--in other words, the State of California tried to ban the toys in Happy Meals. However, it was strongly opposed by some as being heavy-handed, and the ban was thrown out by the government.

    While some people believe that the fast-food company, with its large following of children, can create a powerful message through the books, others believe its actions are contradictory. Anyway, the company is trying to spread the message of nutrition while it is serving food that is anything but healthy.

    Have you ever been to Singapore? It is a dynamic city-state where you will find a harmonious mixture of culture, cuisine, arts, people and architecture. If you have at least 5 hours to spare in transit(运输；中转) before your next flight, join us in one of our free two-hour guided tours, which runs daily at regular times. Registration for the tour must be made at least one hour before the start of the tour.

    HERITAGE TOUR

    Tour Timings:

    9:00 am to 11:00 am

    11:30 am to 1:30 pm

    2:30 pm to 4:30 pm

    4:00 pm to 6:00 pm

    The heritage（遗产） tour has a short stopover at the Merlion Park before going to the Colonial District, Central Business District and Chinatown or Little India. The journey to the Merlion Park offers you an entire view of Singapore's landmarks like Marina Bay Sands, Singapore Flyer and Gardens by the Bay. The tour will bring you through a discovery journey where you will have a glimpse of a unique mixture of East and West, tradition and modernity. It will be a splendid way for you to explore the history, culture and lifestyle of multi-racial Singapore while in your transit.

    CITY LIGHT TOUR

    Tour Timings: 6:30 pm to 8:30 pm

    As night falls, Singapore takes another look to offer an entertainment choice. The City Light Tour brings you to various attractions in Singapore. As the journey begins from Changi Airport towards Benjamin Sheares Bridge, you will get a wide view of Singapore's famous symbols- the Singapore Flyer, Marina Bay Sands and Esplanade. Next, you will see the Helix(螺旋的) Bridge which is inspired by the double helix of our DNA structure.

    A scientist working at her lab bench and a six-old baby playing with his food might seem to have little in common. After all, the scientist is engaged in serious research to uncover the very nature of the physical world, and the baby is, well, just playing…right? Perhaps, but some developmental psychologists have argued that this "play" is more like a scientific investigation than one might think.

Take a closer look at the baby playing at the table. Each time the bowl of rice is pushed over the table edge, it falls in the ground—and, in the process, it belongs out important evidence about how physical objects interact; bowls of rice do not flood in mid-sit, but require support to remain stable. It is likely that babies are not born knowing the basic fact of the universe; nor are they ever clearly taught it. Instead, babies may form an understanding of object support through repeated experiments and then build on this knowledge to learn even more about how objects interact. Though their ranges and tools differ, the baby's investigation and the scientist's experiment appear to share the same aim(to learn about the natural world ), overall approach (gathering direct evidence from the world), and logic (are my observations what I expected?).

Some psychologists suggest that young children learn about more than just the physical world in this way—that they investigate human psychology and the rules of language using similar means. For example, it may only be through repeated experiments, evidence gathering, and finally overturning a theory, that a baby will come to accept the idea that other people can have different views and desires from what he or she has, for example, unlike the child, Mommy actually doesn't like Dove chocolate.

Viewing childhood development as a scientific investigation throws on how children learn, but it also offers an inspiring look at science and scientists. Why do young children and scientists seem to be so much alike? Psychologists have suggested that science as an effort —the desire to explore, explain, and understand our world—is simply something that comes from our babyhood. Perhaps evolution provided human babies with curiosity and a natural drive to explain their worlds, and adult scientists simply make use of the same drive that served them as children. The same cognitive systems that make young children feel good about feel good about figuring something out may have been adopted by adult scientists. As some psychologists put it, "It is not that children are little scientists but that scientists are big children."