My infatuation with the study of animate nature grew rapidly into a full-fledged love affair. I found that even the human beings with whom the study brought me into contact could be fascinating too. My first mentor was a middle-aged Scotsman who gained his livelihood delivering ice, but who was in fact an ardent amateur mammologist. At a tender age he had developed mange, or leprosy, or some other such infantile disease, and had lost all his hair, never to recover it-a tragedy which may have had a bearing on the fact that, when I knew him, he had already devoted fifteen years of his life to a study of the relationship between summer molt and incipient narcissism in pocket gophers. This man had become so intimate with gophers that he could charm them with sibilant whistles until they would emerge from their underground retreats and passively allow him to examine the hair on their backs. Nor were the professional biologists with whom I later came into contact one whit less interesting. When I was eighteen I spent a summer doing field work in the company of another mammologist, seventy years of age, who was replete with degrees and whose towering stature in the world of science had been earned largely by an exhaustive study of uterine scars in shrews. This man, a revered professor at a large American university. knew more about the uteri of shrews than any other man has ever known. Furthermore, he could talk about his subject with real enthusiasm. Death will find me long before I tire of contemplating an evening spent in his company during which he enthralled a mixed audience consisting of a fur trader, a Cree Indian matron, and an Anglican missionary. with an hour-long monologue on sexual aberrations in female pygmy shrews. (The trader misconstrued the tenor of the discourse; but the missionary, inured by years of humorless dissertations, soon put him right.) My early years as a naturalist were free and fascinating, but as I entered manhood and found that my avocation must now become my vocation, the walls began to close in. The happy days of the universal scholar who was able to take a keen interest in all phases of natural history were at an end, and I was forced to recognize the unpalatable necessity of specializing, if I was to succeed as a professional biologist. Nevertheless, as I began my academic training at the university, I found it difficult to choose the narrow path.

1. What is the author's present situation? A. He is a biologist.
B. He is an intern.
C. He is a researcher.
D. He is a university student.

2. Which of the following explains the type of text used in the excerpt?
A. It informs the readers about the different types of scientists.
B. It narrates a realistic event.
C. It presents an argument on career decision making.
D. It raises a problem on how to advance one's profession.

3. What might be the next action the author has to make?
A. Choosing a specialization in his vocation
B. Having second thoughts if he will continue his degree
C. Informing his family about his change of plans
D. Seeking advice from his friends on what's best for him

4. What does the author want to impart to his readers?
A. Grown-ups at some point in life must make a crucial decision
. B. Passion can drive the person to work hard.
C. Small sacrifices must be made along the way as one reaches his goals.
D. People's preference in life such likes and dislikes change as they mature

5. Which detail will best support the possible decision that the author has to make in the future?
A. His passion in general science
B. His peers whom he considered mentors
C. His blissful childhood
D. His scholarship​