C

        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 psychologistshave argued that this“play”is  more like a scientific investigation than one might think.

Take a closerlookat 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.

Viewingchildhood 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.”

Bicycle Safety

    Operation Always ride your bike in a safe, controlled manner on campus(校园). Obey rules and regulations. Watch out for walkers and other bicyclists, and always use your lights in dark conditions.

Theft Prevention Always securely lock your bicycle to a bicycle rack—even if you are only away for a minute. Register your bike with the University Department of Public Safety. It's fast, easy, and free. Registration permanently records your serial number, which is useful in the possible recovery of the bike stolen.

Equipment

    Brakes  Make sure that they are in good working order and adjusted properly.

    Helmet  A necessity, make sure your helmet meets current safety standards and fit properly.

Lights Always have a front headlight—visible at least 500 feet in front of the bike. A taillight is a good idea.

Rules of the Road

    Riding on Campus  As a bicycle rider, you have a responsibility to ride only on streets and posted bicycle paths. Riding on sidewalks or other walkways can lead to a fine. The speed limit for bicycles on campus is 15mph, unless otherwise posted. Always give the right of ways to walkers. If you are involved in an accident, you are required to offer appropriate aid, call the Department of Public Safety and remain at the scene until the officer lets you go.

    Bicycle Parking  Only park in areas reserved for bikes. Trees, handrails, hallways, and sign posts are not for bicycle parking, and parking in such posts can result in a fine.

If Things Go Wrong

    If you break the rules, you will be fined. Besides violating rules while riding bicycles on campus, you could be fined for:

No bicycle registration—————————————————$25

Bicycle parking banned————————————————--$30

Blocking path with bicycle ———————————————$40

Violation of bicycle equipment requirement ————————-$35

    It is hardly surprising that clothing manufacturers (生产商)follow certain uniform standards for various features(特征)of clothes. What seems strange, however, is that the standard adopted for women is the opposite of the one for men. Take a look at the way your clothes button. Men's clothes tend to button from the right, and women's from the left. Considering most of the world's population—men and women—are right-handed, the men's standard would appear to make more sense for women. So why do women's clothes button from the left?

    History really seems to matter here. Buttons first appeared only on the clothes of the rich in the 17^th century, when rich women were dressed by servants. For the mostly right-handed servants, having women's shirts button from the left would be easier. On the other hand, having men's shirts button from the right made sense, too. Most men dressed themselves, and a sword drawn from the left with the right hand would be less likely to get caught in the shirt.

    Today women are seldom dressed by servants, but buttoning from the left is still the standard for them. Is it interesting? Actually, a standard, once set, resists change. At a time when all women's shirts buttoned from the left, it would have been risky for any single manufacturer to offer women's shirts that buttoned from the right. After all, women had grown so used to shirts which buttoned from the left and would have to develop new habits and skills to switch. Besides, some women might have found it socially awkward to appear in public wearing shirts that buttoned from the right, since anyone who noticed that would believe they were wearing men's shirts.

How to Calm Down at Work

    The workplace can be a stressful place. Anxiety, conflict, bad management and overwork can lead to frustration and stress.{#blank#}1{#/blank#}

    Keep something you like to look at within sight. A photo of a loved one or a favorite personal souvenir are the best examples. Keep such an item somewhere you can glance at it whenever you wish to do so.{#blank#}2{#/blank#}

    Take a moment to engage your body. If you're unable to leave your work area, stand and stretch for a moment. Muscle tension exercises can also help you calm down.{#blank#}3{#/blank#}For instance, start by squeezing all of your face muscles as tightly as you can for twenty seconds and slowly releasing them.

    Write down the reason why you are upset.{#blank#}4{#/blank#}Getting your thoughts and feelings out on paper can help clarify the issue you're having. Writing down your thoughts can even help you determine the best way to address your frustration or anxiety and move forward.

    {#blank#}5{#/blank#}If you and another co-worker are constantly frustrated with one another, set up a time to speak with him or her. Say something like, "Hey, Sarah, let's sit down sometime soon and chat to make sure we're on the same page about our upcoming project."

A. Turn to your workmates for help

B. Communicate with your workmates

C. A vase of flowers on your desk is another good example

D. Focus on one particular muscle or muscle group at a time

E. Here are the steps you can take to help you calm down at work

F. Engage your body by rolling your head, shoulder, and ankles while sitting

G. The best way to figure out exactly what's bothering you is to write it down

    We can video chat with astronauts aboard the International Space Station and watch live footage from the frozen heights of Everest. But communicating with a submarine (潜艇）or a diver is not so easy. The lack of practical methods for sharing data between underwater and airborne devices has long been a frustration for scientists. The difficulty stems from the fact that radio signals work perfectly in air travel but poorly in water. Sonar (声呐）signals used by underwater sensors reflect off the surface of the water rather than reaching the air.

    Now, researchers at MIT have developed a method with the potential to revolutionize underwater communication. "What we've shown is that it's actually feasible to communicate from underwater to the air," says Fadel Adib, a professor at MJT's Media Lab, who led the research.

    The MIT researchers designed a system that uses an underwater machine to send sonar signals to the surface, making vibrations (震动)corresponding to the ls and Os of the data. A surface receiver then reads and decodes these tiny vibrations. The researchers call the system TARF. It has any number of potential real-world uses, Adib says. It could be used to find downed planes underwater by reading signals from sonar devices in a plane's black box and it could allow submarines to communicate with the surface.

    Right now the technology is low-resolution. The initial study was conducted in the MIT swimming pool at maximum depths of around 11 or 12 feet. The next steps for the researchers are to see if TARF is workable at much greater depths and under varying conditions—high waves, storms, schools of fish. They also want to see if they can make the technology work in the other direction— air to water.

    If the technology proves successful in real-world conditions, expect "texting while diving" to be the latest underwater fashion.

Poetry{#blank#}1{#/blank#} (communicate) in words. To do that{#blank#}2{#/blank#} (successful), it must have something important to say, expressing it in a unique way. Whether you are writing poetry yourself or analysing (分析) poems {#blank#}3{#/blank#} (write) by someone else, you should be thinking about these two broad categories: what is being said, and how it is being expressed.

What is being said may be something unforgettable or something funny, something deeply emotional or something that has just made the writer stop and think. Whatever it is, the theme of the poem will be something worth {#blank#}4{#/blank#} (say). If you are writing a poem yourself and are not very{#blank#}5{#/blank#} (experience), it's best to choose a topic you feel deeply about. Writing a poem {#blank#}6{#/blank#} begins with ‘I remember' is a good way to focus your attention  {#blank#}7{#/blank#} something really memorable.

However, two poems could easily have {#blank#}8{#/blank#} same theme and yet be completely different. What makes {#blank#}9{#/blank#} (they) different? How they are expressed is the key. It is the way the poet writes that you need to analyse if you are writing about a poem, and if you are writing one yourself, you must choose the form and the words which suit what you want {#blank#}10{#/blank#} (express).