Now and then I have tested my seeing friends to discover what they see. Recently I was visited by a very good friend who had just returned from a long walk in the woods, and I asked her what she had observed. “Nothing in particular，” she replied. But for long I have been accustomed to such responses, and became convinced that the_seeing_see_little.

How was it possible, I asked myself, to walk for an hour through the woods and see nothing worthy of note? I — who cannot see, find hundreds of things to interest me through mere touch. I feel the delicate symmetry(对称) of a leaf. I pass my hands lovingly about the smooth skin of a silver birch(银桦树), or the rough bark of a pine. In spring I touch the branches of trees hopefully in search of a bud, the first sign of awakening nature after her winter's sleep. I feel the delightful, smooth texture of a flower, and discover its remarkable swirl(旋动); and something of the miracle of nature is revealed to me. Occasionally, if I am very fortunate, I place my hand gently in a small tree and feel the happiness of a bird in full song. I am delighted to have cool waters of a stream rush through my open fingers. To me a rich carpet of pine needles or spongy grass is more welcome than the most luxurious Persian rug(波斯毛毯). To me the circle of seasons is a thrilling and unending drama, the action of which streams through my finger tips. At times my heart cries out with longing to see all these things. If I can get so much pleasure from mere touch, how much more beauty must be revealed by sight. Yet, those who have eyes apparently see little. The whole picture of color and action filling the world is taken for granted. It is human, perhaps, to appreciate little that which we have and to long for that which we have not, but it is a great pity that in the world of light and the gift of sight is used only as mere convenience rather that as a means of adding fullness to life.

66. What does the author imply by the underlined sentence in Paragraph 1?

A. If one is always using his eyes, he would have poor eyesight.

B. The sighted people sometimes fail to discover beautiful things.

C. The blind people see no less than the sighted ones.

D. When one tries to see, he always sees nothing.

67. What can we know about the author according to the passage?

A. She was blind.

B. She was content with her situation now.

C. She thought the gift of sight a great pity.

D. She acquired information and knowledge only through touch.

68. Which of the following is NOT an example given to show how the nature interests the author?

A. The delicate symmetry (对称) of a leaf.  

B. The delightful, smooth texture of a flower.

C. The happiness of a bird in full song.       

D. The most luxurious Persian rug.

69. What does the author think is the reason why sighted people fail to discover the beauty of nature?

A. That they long for that which they have not.

B. That what they have is usually taken for granted.

C. That the gift of sight is a means of adding fullness to life.

D. That mere touch is the best way to discover and feel.

70. What is the passage mainly about?

A. It tries to prove that the seeing see little.

B. It describes how wonderful the nature is.

C. It tells people to protect their eyesight.

D. It expresses some thoughts on feeling beauty and sight.