单选题 It is reported that over 300 million people in China are suffering from nearsightedness(近视). As more children have got eye trouble, their parents hope to cure the disease by medicine, equipment or by correcting the way children read and sit. But in fact the care given to one"s eyes should start with the exercise on one" s feet. Three methods on how to protect eyes are as follows:
Firstly, don"t fasten your shoes too tightly. Try wearing loose socks or walking barefooted at home. When traveling, try wearing cloth shoes so as to make blood circulation (循环) easier.
Secondly, walking on tiptoes will help improve one"s eyesight, and prevent nearsightedness. Figures show that few ballet (芭蕾舞) performers are nearsighted.
Thirdly, rope skipping also does good to one"s eyesight. When skipping the rope, one has to react quickly, which excites the brain as well as the eyes. It will also help make one grow taller.
Besides foot exercises, it is good to pull one"s ears. Pulling the ears 20 times is found to be an effective way to reduce the pressure on one"s eyes soon.

单选题 To cure nearsightedness, people don"t usually______.

【正确答案】 C

【答案解析】[解析] 事实细节题。从文章第一自然段第二句... their parents hope to cure the disease by medicine，equipment or by correcting the way children read and sit 暗示了当人们进行眼部保健时，很少有人能想到要进行足部锻炼。

单选题 What is the main point the writer is trying to make about the first method?

【正确答案】 A

【答案解析】[解析] 事实细节题。从文章第二自然段的内容可知，不要穿过紧的鞋袜，在家里可光着脚走路，旅行时穿布鞋，这就是说不要把双脚束缚得太紧，以利于血液循环。所以正确的答案为A。

单选题 Few ballet performers become nearsighted because______.

【正确答案】 D

【答案解析】[解析] 判断推理题；从文章第三自然段内容可知，踮着脚尖走可改善视力，按照常识，芭蕾舞演员是跳脚尖舞蹈的，所以可推测芭蕾舞演员很少有得近视的。所以正确的答案为D。

单选题 Why does the writer think rope skipping also does good to one"s eyes?

【正确答案】 C

【答案解析】[解析] 判断推理题。从文章第四段第二句话，When skipping the rope，one has to react quickly，which excites the brain as well as the eyes．可知，跳绳时会使大脑和眼睛兴奋，反应快速。所以正确的答案为C。