Every day when I enter the classroom, I will take a look at the wall beside my seat. You will find nothing special about this old wall if you just look at it. But for the students in my class, it is a special wall. Take a good look at it, and you will get to know the real feelings and thoughts of us, the 9th graders.
In the middle of the wall, there is a big "VICTORY". It was written in pencil. I guess it must have been written by someone who got a good mark in an exam.
A little higher above the formulas, there is a poem. It only has two sentences. It reads: All those sweet memories have disappeared. Like tears dropping in the heavy rain.　　         Oh! It must have been written at the end of the last semester in middle school. Classmates had to leave school and good friends had to part. What a sad poem!
If you "explore" the wall more carefully, you will find many other interesting things, like a crying face, or a happy face, and other patterns(图案). There are still some patterns and letters that I can't understand, but they all show the feeling of the students who drew them.
For years, the wall has witnessed(目睹) all the things that have happened in the classroom. I don't know how it will be next year, two years from now, or even ten years from now. But I hope more smiling faces will be drawn on it.
【小题1】There is ____ special on this wall.

句子翻译（每句2分，共10分）

1.这是这个年轻人第二次去北京。(this is the …time that…)

2.跟他在一起工作没什么乐趣，因为他很难相处。(主语+adj. + to do sth)

3.你一旦下定决心做某事，你一定要遵守诺言。(once)

4.并非所有的希望都破灭了。(部分否定)

5.我们明天就要去新加坡了。（leave）

  It is difficult to imagine what life will be like without memory. The meanings of thousands of everyday perceptions(感觉、知觉), the bases for the decisions we make, and the roots of our habits and skills are to be found in our past experiences, which are brought into the present by memory.

  Memory can be defined as the capacity to keep information available for later use. It includes not only “remembering” things like arithmetic or historical facts, but also involves any change in the way an animal typically behaves. Memory is involved when a rat gives up eating grain because he has sniffed something suspicious in the grain pile. Memory is also involved when a six-year-old child learns to swing a baseball bat.

  Memory exists not only in humans and animals but also in some physical objects and machines. Computers, for example, contain devices from storing data for later use. It is interesting to compare the memory-storage capacity of a computer with that of a human being. The instant-access memory of a large computer may hold up to 100,000 “words”―ready for instant use. An average U. S. teenager probably recognizes the meaning of about 100,000 words of English. However, this is but a fraction(部分、片断) of the total amount of information which the teenager has stored. Consider, for example, the number of faces and places that the teenager can recognize on sight.

The use of words is the advanced problem-solving intelligence of human beings. A large part of a person’s memory is in terms of words and combinations of words.

66. According to the passage, memory is considered to be ________.

A. the basis for decision making and problem solving

B. an ability to store experiences of future use

C. an intelligence typically possessed by human beings

D. the data mainly consisting of words and combinations of words

67. The comparison made between the memory capacity of a large computer and that of a human being shows that ________.

A. the computer’s memory has a little bigger capacity than a teenager’s

B. the computer’s memory capacity is much smaller than an adult human being’s

C. the computer’s memory’s capacity is much smaller even than a teenager’s

D. both A and B

68. The whole passage implies that _______.

A. only human beings have problem-solving intelligence

B. a person’s memory is different from a computer’s in every aspect

C. animals are able to solve only very simple problems

D. animals solve problems by instincts rather than intelligence

69. The phrase “in terms of” in the last sentence can best be replaced by ________

A. in connection with                         B. expressed by

C. consisting                                     D. by means of

70. The topic of the passage is __________.

A. What would life be like without memory?

B. Memory is of vital importance to life.

C. How is a person’s memory different from an animal’s or a computer’s?

D. What is contained in memory?