C2
对话
1. Why does the student go to see the professor?
She has a question about the requirements of an assignment.
She needs help selecting a topic for an assignment.
The professor requires all of his students to meet with him.
The professor agreed to share some articles about concrete.
2. What does the student mean when she says that she found her topic by mistake?
She initially misunderstood the purpose of the assignment.
She was misled by the title of an online article.
She did not realize that her topic was one that was recommended by the professor.
She was unable to find a topic that involved both botany and engineering.
3. What does the professor imply about the alkali-silica reaction,or ASR?
He is sure the student will find information about it without much effort.
He is not sure that it is common enough in nature to be of use to engineers.
He suspects that more than one type of bacteria can serve as a biomarker for it.
He is surprised that the student still has questions about it after he explained it in class.
4. According to the student,what is the goal of the researchers who are studying concrete?
To develop a timely method of identifying concrete that needs repair
To improve the quality of concrete that is used to support rooftop gardens
To develop a concrete that is resistant to damage from ASR
To find a way to limit bacterial growth on concrete
5. What will the professor probably do next?
Contact a colleague who is researching concrete
Help the student find an article
Formally approve the student’s topic
Meet with another student
