Normally a student must attend a number of courses in order to graduate, and each course which he attends gives him a grade which he may count towards a degree. In many American universities the total work for a degree is made up of thirty-six courses each lasting for one term. Generally, a coarse is made up of three classes per week for fifteen weeks: while attending a university a student will probably attend four or five courses during each term. Normally a student would expect to take four years attending two terms 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 universty and another during his degree course, though this is not done as a regular practice. For every course that follows a student is given a grade, which is recorded, and the student can get it to show his future employers. All this sets a constant pressure and strain of work, but in spite of this some students still find time for great activities in student affairs. They show much interest in elections to positions in student organizations performed by students who advise the academic authorities (权威人士). Any student who is thought to have broken the rules, for example, by cheating is to appear before a student court. With the large numbers of students, the operation of the system has something to do with 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】 C

【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C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：事实与细节题。根据第二段第一句：“For every course that 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的成绩都有记录，以备用给将来的雇主看，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：推理判断题。根据第二段最后一句：“A student who has held one of these posi tions 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。