Have you ever felt sick or had a headache during a test? If so, then you know what stress is. Stress is what you feel when you are _______ about something. This worry in your mind can make you feel angry, frustrated and scared. And it can also make your _______ feel bad. For example, it can give you a stomachache or a headache.

However, there are _______ kinds of stress. Good stress might happen when you’re called to answer questions in class or when you have to give a report. This kind of stress can help you to get things _______ done. For example, you may do a better job on your test if the stress makes you prepare well _______ the test. But on the other hand, bad stress can happen if the stressful feelings _______ a long time. You may not feel well if your parents are _______ , or if a family member is sick. That kind of stress can actually make you sick.

The best way to _______ stress is to have a balanced life. If you are busy with your study and have _______ time to play, you can get stressed. If you get enough sleep and food, and if you exercise and leave time for ________ you’ll probably feel less stressed out! Make sure you keep your SELF in mind: Sleep, Exercise, Leisure (something fun), and Food.

In a room full of people, you can still feel lonely. Loneliness is a state(状态) of mind usually caused by feelings of being misunderstood, or having no friends or persons to talk to during a difficult time. There are many things that make one feel lonely, like going to a new school where he doesn’t know anyone. There are a lot of reasons for people to feel lonely, but there are also many ways to stop the feeling of loneliness.

Ask yourself why you are feeling lonely. This is the first thing you should do when you feel lonely. Write down your feelings and thoughts. Take time to find out if you always feel lonely or you feel lonely just because something happened in your life recently.

If your loneliness is internal(固有的), find a psychologist that you can talk to about your feelings. Communicate with others who share the same interest with you by joining a club or surfing the Internet and getting into chat rooms. Go to different. This will provide you with opportunities to meet new people and make new friends. Give a hand to those who are in trouble. I think this is the beat way to stop your lonely feelings. By doing so, you’ll know loneliness isn’t the terrible thing.

Have you ever heard of “a ball of energy”? People often use it to describe very active children. But today we tell about an invention called the socket, that is a real soccer ball of energy. Julia Silverman explains that in fact the soccket is a portable generator (便携式发电机).

Julia Silverman and Jessica Matthews developed the soccket as part of a group project for an engineering class at Harvard University. There are mechanisms (装置) in a soccket. When you kick, hit or throw it, energy is then kept in it by these mechanisms instead of disappearing into the environment. Then the user can put something directly into the ball, like a lamp, or a mobile phone charger so that they can get energy from it. For every fifteen minutes of the game play, the soccket can provide enough electricity (电) for an LED lamp for three hours, and the ball can store (储藏) up to 24 hours’ electricity.

The International Energy Association reported last year that nearly one and a half billion people in the world had no electricity to use, and most of them live in sub-Saharan. Africa and in India and other countries in Asia. Julia Silverman and Jessica Matthews both had experiences in developing countries before they began the project. They knew that power shortage are a serious problem in these areas. There’s an energy crisis in the world. One out of every five people in the world don’t have any electricity. And besides that, there are a lot of health problems because what people use instead of the electricity are harmful choices like kerosene (煤油) lamps, which produce a lot of smoke.

Julia Silverman says the soccket ball is one small solution (解决方法) to a big problem. Jessica Matthews and Julia Silverman hope their soccket ball will shine more light on the problem of power shortages. It offers people a chance to put their energy into the world’s most popular sport and get some energy in return.

Have you over heard of learning disabilities (障碍), which more disorders in the ways for some people when they understand or use a language? They can affect the ability to listen or think or to speak, or to read and write. They can also affect the ability to do math.

A person with a learning disability has unusual difficulties in developing these skills. Researcher believe that learning disabilities are caused by differences in the way that the brain works with information. They say children with leaning disabilities are not stupid or do not want to work. Their brains just deal with information differently from others. As many as one out of every five people in the US have this problem.

A few signs of learning disability include not connecting letters with their sounds or not understanding what is read. A person with a learning disability may not be able to understand a funny story. They may not follow directions. They may not read number correctly or know how to start a task.

Experts say learning disability can’t be cured (治愈). But people who have them can be helped. Teachers and parents can help young people with learning disabilities.