L2
讲座
1. What are the main purposes of the lecture?（多选题）
To update the students on a project the professor is involved in
To present the history of an environmental challenge
To evaluate a research study
To follow up on a previous lecture
2. According to the lecture, what are the two primary expenses associated with biofouling?（多选题）
Repairing leaks in ships’ hulls
Purchasing extra fuel for ships
Painting ships’ hulls
Correcting environmental damage caused by biofouling organisms
3. What does the professor imply when she discusses a type of paint that was designed to wear slowly off the hull of a ship?（多选题）
The paint was beneficial to the shipping industry
The paint was extremely expensive to manufacture.
The paint proved to be harmful to marine life.
The paint was originally developed for use in the automobile industry.
4. What does the professor imply about the requirements that antifoul paints have had to meet since the 1990s?
The requirements make it difficult to produce effective antifoul paints
The requirements were in effect for only brief period of time.
The requirements do not address all the problems associated with biofouling
The requirements have not been strictly enforced by law enforcement agencies
5. What do researchers hope to learn by studying the glues produced by marine plants and animals?
How to interfere with the effectiveness of the glues
How to make glues safer for use in marine environments
How to make glues that are long-lasting but inexpensive
How to make anti-foul paints that adhere firmly to ships’ hulls
6. What does the student imply when he says this
Researchers should experiment with new combinations of biocides.
Researchers should try to develop antifoul technologies that do not utilize biocides. Researchers should continue trying to find a way to make TBT-based paints safe for the environment.
Researchers might be able to get good ideas by studying biofouling research done in the 1800s.
