单选题 Normally a student must attend a certain number of courses in order to graduate, and each course which he attends gives him a credit which he may count towards a degree. In many American universities the total work for a degree consists of thirty six courses each lasting for one semester. A typical course consists of three classes per week for fifteen weeks; while attending a university a student will probably attend four or five courses during each semester. Normally a student would expect to take four years attending two semesters each year. It is possible to spread the period of work for the degree over a longer period. It is also possible for a student to move between one university and another during his degree course, though this is not in fact done as a regular practice.
For every course that he follows a student is given a grade, which is recorded and available for the student to show to prospective employers. All this imposes a constant pressure and strain of work, but in spite of this some students still find time for great activity in student affairs. Elections to positions in student organizations arouse much enthusiasm. The effective work of maintaining discipline is usually performed by students who advise the academic authorities. Any student who is thought to have broken the rules, for example, by cheating, has to appear before a student court. With the enormous numbers of students, the operation of the system does involve a certain amount of activity. A student who has held one of these positions of authority is much respected and it will be of benefit to him later in his career.

单选题 Normally a student would at least attend ______ classes each week.

【正确答案】 B

【答案解析】[解析] 推理判断题。从第一段第三句：“A typical course consists of three classes per week for fifteen weeks；while attending a university a student will probably attend four or five courses during each semester.”可知，每门课一周为三节，而学生一周要修四到五门课，因此学生一周至少要上12节课。故B正确。

单选题 According to the first paragraph an American student is allowed ______.

单选题 American university students are usually under pressure of work because ______.

【正确答案】 A

【答案解析】[解析] 事实细节题。根据第二段第一句：“For every course that he follows a student is given a grade, which is recorded and available for the student to show to prospective employers.”可知，在美国的大学，学生所学的每一门课程都会给予评分，以备给将来的雇主看，即他们的学业成绩会影响以后工作，这正是美国大学生的压力所在。因此正确答案为A。

单选题 Some students are enthusiastic for positions in student organizations probably because ______.

【正确答案】 C

【答案解析】[解析] 事实细节题。根据第二段最后一句：“A student who has held one of these positions of authority is much respected and it will be of benefit to him later in his career.”可知，一些学生热衷于学生会组织的职位，主要是有益于将来的就业。故C正确。