Look into hunters' eyes

    Have you ever been face to face with a cat or a sheep? If you have,you probably noticed that cats narrow their eyes to vertical (垂直的) slits (狭缝),while sheep have horizontal pupils (瞳孔).

     Why is the difference?

    Scientists from the Universities of California Berkeley and Durham in Britain may have the answer. Their research, published recently in the journal Science Advances, suggested that pupils' shapes could tell whether an animal is a hunter or gets hunted.

    The researchers took a close look at the eyes of 214 land animals.The challenge was to see if they could find a relationship between an animal's role in the food chain and the pupils' shapes.

    They found a pattern. Species with pupils that are vertical slits are more likely to be small ambush predators (捕猎者) – creatures that lie in wait for their lunch.In contrast,those with horizontal pupils are more likely to be plant-eating prey (猎物) species.

    Evolution chose the arrangement for a good reason.For hunters such as household cats,it appears that vertical pupils not only improve their ability to keep track of moving objects like mice,but also maximize (使最大化) their ability to judge the distances of the animals they hunt.

    However, an interesting discovery from the study is that the slit pupils are mostly linked to hunters that are close to the ground. Therefore, bigger cats who actively hunt down their prey, like tigers and lions, don't have slit pupils.

    On the other hand, for plant-eating prey animals, horizontal pupils give them a wider field of vision.When stretched (伸展) horizontally,the pupils allow for more light to enter from the front, back, and sides. Meanwhile, they also limit the amount of light from the sun above so the animal can see the ground better.“ Once they do find a predator,they need to see where they are running,” said leading researcher Martin Banks,a UC Berkeley professor of optometry (视光学).“They have to see well enough out of the corner of their eye to run quickly and jump over things.”

    But what happens when they bend down to eat? Researchers checked this by watching prey animals in the Oakland Zoo in California, US. They believe that when goats lower their heads to eat,their eyes rotate (旋转) to keep their pupils horizontal.

    So it seems that the eyes are indeed the window to the soul!

    The following are several summer programs for children.

    Duke University ADHD Program

    Academic Summer Program is used to help 6th to 8th graders with ADHD(注意力缺乏多动症). The program uses techniques to teach study strategies, academic support skills, and cooperative learning activities.

    Phone: 919-416-2096

    Location: Durham, North Carolina

    Eagle Hill School(Connecticut)

    The Summer Academic Day Program at Eagle Hill School is designed for children experiencing academic difficulty. Open to boys and girls ages 6 to 12. The summer program immerses(使沉浸)kids in a total language environment specifically tailored to meet his or her needs.

    Phone: 203-622-9240

    Location: Greenwich, Connecticut

    The Gow School

    The Gow School offers a traditional summer school program experience for boys and girls ages 8 to 15. The 5-week session offers a specially designed curriculum for students who have experienced academic difficulty or have language based learning disabilities. Summer Program learners can be day students or live on campus(校园).

    Phone :716-652-3450

    Location: South Wales, New York

    The Kentwood Summer Camp Program

    The Kentwood Summer Camp Program is a school program catering toward children, teens, and their families who are not being successful in the traditional school environments socially, and or at home. It is for children and teens in grades K(Kindergarten) to 12.

    Phone: 954-581-8222 or 954-634-0601

    Location: Davie, Florida

    Can you remember the first time you learned to ride a bike or drive a car? Learning these skills changed your life forever and opened up new horizons. Learning about computers can be like learning how to ride a bike or drive a car. Once you have invested the time to master the skills , you will never go back to the old days. The new technology is simply too convenient and too powerful.

    Technological developments through the years have enabled us to do more with less effort. We have continuously looked for better ways of doing things. Each invention and new development has allowed us to extend our capabilities. Today we see one of the most dramatic technologies ever developed—the computer. It extends the capabilities of our minds.

    Computers have saved organizations millions of dollars. Furthermore, these same computer systems have opened up new opportunities that would have gone undiscovered or neglected. The computer may multiply what we can do, and the return on investment is high. The growth of computer usage is surprising. On the other hand, the computer can do serious damage. Invasion of privacy(侵犯隐私), fraud(欺诈), and computer-related mistakes are just a few shocking examples.

    The computer is like a double-edged sword. It has the ability to cut us free from some activities, but it can also cut deep into profits, personal privacy, and our society in general. How it is used is not a function of technology. It is strictly a function of how people decide to use or misuse this new technology. The choice is yours, and only through a knowledge of computer systems will you be able to avoid the dangers while enjoying the many, many benefits of the computer age.

    Have you ever been afraid to talk back when you were treated unfairly? Have you ever bought something just because the salesman talked you into it? Many people are afraid to speak out for their rights. Dr Robert Albert, author of Stand Up, Speak Out, and Talk Back thinks it's because their self-respect is low.

    But Albert and other scientists are doing something to help people help themselves. They offer "assertiveness training" courses A. T. for short. In the A. T. Course people learn that they have a right to be themselves. They learn to speak out and feel good about doing so. They learn to help themselves without hurting other people.

In one way, learning to speak out is to get rid of fear, a group taking an A. T. Course will help the shy person to lose his fear. But a. T. uses an even stronger motive— he needs to share. The shy person speaks out in the group because he wants to tell how he feels. Whether or not you speak up for yourself depends on your self-respect. If someone you face is more "important" than you, you may feel less of a person. You start to doubt your answers to problems. You can get to feel good about yourself. And once you do you can learn to speak out.

China is the home of tea. Since ancient times, tea {#blank#}1{#/blank#} (become) part of Chinese culture, leaving its smell in poems and customs. Many tea lovers enjoy tea not only for its taste, {#blank#}2{#/blank#} for the beauty of tea ceremonies.

 {#blank#}3{#/blank#} (traditional), picking tea leaves is an important activity in spring in South China. The earliest batch (批) of tea is often ready to be picked before Qingming, in early April {#blank#}4{#/blank#} the temperature begins to rise and rain increases. This kind of tea, called Mingqian tea, is {#blank#}5{#/blank#} (high) praised for its good quality.

East China's Zhejiang province is considered as {#blank#}6{#/blank#} major producer of tea. White Tea in Huzhou city's Anji county and West Lake Longjing Tea in Hangzhou are famous in both China and abroad. In spring, local hills of those places are filled with tea workers {#blank#}7{#/blank#}(work) on their land. In the busy seasons, {#blank#}8{#/blank#} (tourist) from different areas of the country travel there {#blank#}9{#/blank#} (see) the sights of tea farms and enjoy a freshly prepared cup of tea.

Thousands of years ago, by the hands of the Chinese people, a leaf {#blank#}10{#/blank#} (make) into a delicious drink. It has traveled a long way and continues to play a role in Chinese culture.

Is your glass of milk half-full or half-empty? This saying is often used to test people's outlook in a situation; do they focus on the positives (a half-full glass) or the negatives (a half-empty one)? Thinking positively, with a belief that most things will turn out fine, is called optimism and it's known to boost your well-being. {#blank#}1{#/blank#}

Why is thinking positively good for you?

Research shows that people who are optimistic and think positively tend to experience less stress and cope well when faced with life's challenges. People who are more pessimistic (expect that the worst will happen) may find it hard to believe that these challenges will pass. Scientists have even found that thinking positively can make you live longer. {#blank#}2{#/blank#} This is because you believe your goals are achievable and within reach, which encourages you to work towards them.

{#blank#}3{#/blank#}

Everybody can worry from time to time. Worrying can help to keep you safe. If you were never worried and were greatly positive about how things would turnout, you wouldn't recognize risks. "Worrying is our brain warning us that there might be something threatening, which functions as a fire alarm." says child psychotherapist (心理治疗师) Rachel. "The trouble is that sometimes it goes off when there isn't a huge danger to face." {#blank#}4{#/blank#}

You should learn to think positively.

Optimism is shaped by your genes, which carry characteristics obtained from your parents, and by what happens to you. {#blank#}5{#/blank#} Research has shown that it can help to draw or write an outcome that's positive, like an image of you playing guitar and having passed your next grade. Imagining this can motivate you to work to achieve it, such as practising everyday afterschool.

A. Worrying is like a fire alarm.

B. Avoid worrying is beneficial to our health.

C. Asking others for help positively makes sense.

D. The good news is that everybody can learn to think more positively.

E. When this happens, you can feel anxious and hopeless about what lies ahead.

F. However, whatever your starting point is, you can learn to be more optimistic.

G. Being positive about the future goals can make you happier and more successful.