【摘要】
Conversation One
W: Could you tell me how big a class is?
M: In this department, a class could be as small as 5 students or as large as over 200. The largest classes are lecture classes, usually in introductory courses at the undergraduate level. The normal size of a class is 20 to 40 students who meet 3 times a week for about one hour or twice a week for about one hour and a half.
W: In what forms are classes given?
M: Generally speaking, classes are given in three formats---lectures, seminars and laboratory work. Lecture courses usually include two lecture sessions and one discussion group per week. Lectures are given by professors who will talk on specific topic for one class period. Students have little chance to ask questions. Discussions are conducted by postgraduates and provide the opportunity for questions about the lecture topics.
W: How about seminars?
M: Seminars involve a small group of students and place more responsibility on them. The professor leading a seminar may assign projects, post questions, make suggestions or describe specific cases that demand a solution. Students are free to exchange their ideas. The seminar challenges students’ reasoning and organizing abilities.
W: And laboratory work?
M: Laboratory work gives students opportunities to develop their skills with the use of certain tools or sophisticated lab equipment and to improve their lab techniques.
W: They all sound interesting to me. Do you know how we’re assessed?
M: Some professors give quizzes or short examinations during the course to test on a particular aspect of the subject. Other course examinations are mid-term exams and final exams, which include multiple-choice questions, short answer questions and essay questions. Research papers are another form of examination. Have I made myself clear to you?
W: Yes. I understand now. Thank you. Dr. Wilson.
M: You’re welcome.
Questions 19 to 21 are based on the conversation you have just heard.
19. Which of the following is true of a big class?
20. What can be learnt from this dialogue about the course formats?
21. Which of the following is true about the professors’ evaluation of students’ work?