汽车由（）、（）、（）、（）四大部分组成。

Our eyes are very important. But many of us pay little attention to the importance of eye care. It is said that if you take care of your body, then you can surely be healthy. That is why our eyes should be given a lot of care.      小题1:    .
There are several causes leading to your poor eyesight. Like Televisions, computers and reading. Something dirty can cause redness (红肿) and they will make you feel uncomfortable. If this happens, the best way is to clean your eyes by using cold water.     小题2:   . For example, wearing sunglasses can serve as a great way to protect your eyesight from UV rays (紫外线) in the strong sunlight.
Some foods will do good to your eyesight. Remember that vitamins A, C and E are good for eyes. Try to eat food groups that have these vitamins.      小题3:   . If a person exercises regularly and eats the right kind of food, his eyes will stay in good condition for a long time.
All above are natural ways of eye care that help us keep healthy eyes.      小题4:    . In a word, eye care is very important, no matter how old a person is.

A. You must also try your best to protect your eyes from harmful things B. Being happy all the time can be helpful to a person’s eyesight, too C. And you should do eye exercises because exercise protects your eyesight, too D. Naturally eye care should be put in a number one place