It's said that eyes are the windows of our soul. Beautiful and bright eyes not only show a good health but also make you look attractive. However, to have healthy eyes, you have to look after them properly. Your eyes need everyday attention.

    Pay more attention to your diet. First, eat food that is good for your eyes. They are fresh fruits and vegetables as well as fish, eggs and milk. Besides, a regular amount (数量) of Vitamins A and B2 should also be taken.

    A regular and sound sleep is a must. It relaxes the eye muscles (肌肉) and gives them the rest. Sleep not only helps the body to repair its tired tissues (组织). Usually, you must sleep for at least seven to eight hours every day. Loss of sleep can give you dark circles under the eyes.

    You must exercise your eyes every day. Blink (眨眼) your eyes at regular periods, which makes the eyeballs watery and gives them a good wash.

    We use our eyes in many unnoticeable and wrong ways. For example, if a small thing goes into our eye, we start rubbing (揉) it, which is wrong. Rubbing can cause damage to your eyes. Don't read or write in poor or bright sunlight. Always use sunglasses as sunlight can cause eye tiredness. Light should not shine directly in your eyes. Too much reading, writing, watching TV or working on the computer can also cause eye tiredness.

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Your nose has many important jobs, and is always busy.

Smelling

    Smelling helps you gather information about the world around you. A good scent (气体),like flowers, brings you pleasure. A bad scent, like smoke or sour milk, warns you of danger. Most things around you release scent particles (微粒) into the air. These invisible chemicals enter the nose when you breathe. Nerves in the nose send information to the brain to identify a smell. You are able to recognize thousands of smells.

Breathing

    Most of the air you breathe enters through your nose. The nose uses hair and mucus (粘液) to clean dust and germs (细菌) out of the air. The air that enters your nose contains oxygen. Your body uses oxygen to unlock the energy in the food you eat.  Even when you sleep, your body needs energy to keep your heart beating and your brain working.

Tasting

    Your nose helps you enjoy food. Flavor is a mixture of taste and smell. The smell of the food helps you identify what you are eating. The sense of smell contributes more to (贡献) food flavor than the sense of taste .When you are sick and have a stuffy nose, your food doesn't taste as good because without smell, food loses most of its flavor.

Smell memory

    Smells can bring back memories. Your brain uses a process to create a picture in your mind from the odors(气味)you smell. Smells can affect your feelings because the part of the brain that helps you identify smells is close to the area that affects your emotions, mood and memory. More smell memories are collected as you get older.

    Your nose has many important jobs, and is more than just a smeller!

    There was a tree in my garden. One day, two birds came to the tree and built a house for their three babies. One day, I heard the sound of these birds. I ran to the garden and found two babies eating food on the ground. A few minutes later, the father bird and the mother bird came back. They brought some food for the third baby. The father bird put the food on the ground，far away from the third baby. To get the food, the baby had to fly to it.

    The third baby was hungry, but she was afraid to get out of the nest. To my surprise, the father bird and the mother bird just stood there and did nothing.

    After about ten minutes, the third baby bird didn't have any other choice. She slowly went to the border (边缘) of the nest and began to fly. Finally, she landed safely on the ground and enjoyed the food. Just like the birds, if you want to get something you want, you must depend on yourself.

What's in a Name?

    Many American names come from England. But where did most English names come from?

    Centuries ago, most people in England had only one name-- their first name. In the 11th century, five or six of the 50 people in a village might be named William, and it was easy to get confused. But in the Middle Ages, people found a way to describe each person exactly. If there were four Williams in one village, one might be referred to as William the son of John. A second might be called William from the hill. A third, William the blacksmith(铁匠). And a fourth, William the brown haired. In conversation, people might refer to the four Williams as William John's son, William hill, William smith, and William brown.

    It was 300 or 400 years before the extra(附加的) names gradually developed into last names, or surnames. They were passed on from generation to generation. By the 1300s, Robert, the son of William smith, had the name Robert smith, even if he was not a blacksmith like his father. As the last name became widely accepted, the first letter was capitalized, as in Robert Smith. By the 15th century, most people of the upper and middle classes had surnames.

    Many surnames were based on father-son relations. The "son of" part was added to the father's first name, like Johnson, meaning John's son. Sometimes it was shortened to just "s", as in Jones or Evans.

    Surnames like Hill described the place where a person lived. They are the most common type of surname. A third kind of surname was based on a person's job. Forester was someone who looked after the forest. In the Middle Ages, occupation names such as Baker, Carpenter, and Miller became common. The fourth kind of surname was nickname(绰号). A man whose surname was Bear might be as fierce as a bear.

    Have you ever wondered why some surnames are so common? The most common surname in the English language is Smith. Being able to make metals(金属)into tools was an important skill in the Middle Ages, and many people were trained as blacksmiths. The most common American surnames are Smith, Johnson, William and Brown.