It is reported that 300 million people in China have eyesight （视力） trouble． More and more parents hope to save their kids poor eyesight with medicine， or by correcting the ways that kids read and sit． But in fact， you should start with the exercise on your feet．①

First， don't tie your shoes too closely．Try wearing comfortable and soft socks．You can take care（A）______your eyesight by walking without socks and shoes at home． While you are travailing， try wearing cloth shoes in order to improve blood circulation （循环）．

（B）______， walking on tiptoes （脚趾） is good for your eyesight．②It can fight against eyesight trouble． Numbers show that most of ballet （芭蕾） dancers， eyesight is better．

Third， rope sipping can also be good for your eyesight． While sipping rope， you have to move rapidly． （C） Skipping rope makes not only the brain but also the eyes excited ．Maybe it also helps you grow taller． So start skipping rope now．

③Besides foot exercises， many eye problems can be avoided if you try some simple steps．For example， it is good to pull your ears． Pulling the ears 20 times rapidly is also a great way．It can keep your eyes healthy． （D） 当你空闲的时候，you can have a try．

Above all， you should often have a doctor check your eyesight．

（1）在文中（A）和（B）的空白处填入适当的单词： 　　； 　　

（2）将文中画线部分（C）改写为： Skipping rope makes 　　the brain 　　the eyes excited．

（3）将文中画线部分译成英语： 　　

（4）在文中①②③选出能够填入"Here are three ways to save eyesight "的位置： 　　

（5）从文中找出两个描述视力的形容词： 　　；