027.
I want to thank Professor James for letting me have a few minutes of class to tell you about our field trip tomorrow. We'll be leaving by bus at eight in the morning and return at about five. Please bring your lunch.
As you know, this trip is a requirement of the course. You're all expected to take part and then to write up a report in your laboratory notebook.
I've put together a handout to guide you. Please pick it up after class and read it tonight. In it I discussed the members of the pine tree family found here. As you have learned, the pine tree family is made up of pines, larches, spruces and so on. We'll be looking at examples of them all. The point in the handout should help you tell the various types of trees.
As your leader tomorrow, I'll try to make the experience a rewarding one. But a field trip is a little like a bank: What you get out of it depends on what you put into it.

答案解析：
(1) 正确答案为A。根据We'll be leaving by bus我们坐大巴出发。可知，学生们坐大巴去旅行，因此A项正确。
(2) 正确答案为B。根据Please pick it up after class and read it tonight. 下课后领一下讲义，今晚回去看一下。可知，学生在旅行前要浏览讲义，因此B项正确。
(3) 正确答案为C。根据In it I discussed the members of the pine tree family found here.我在讲义里说明了在那里会看到的松树种类。可知，学生们要学习的科目与树木有关，因此C项正确。