Home
Listening
Listen to an Announcement Test #061
Listen to an Announcement
1. What is the main topic of the talk?
A) The habits of fireflies
B) The process of bioluminescence
C) Reflecting light in nature
D) Chemicals in marine life
2. What are the students asked to do?
A) Prepare for an exam
B) Write a report on fireflies
C) Read a chapter in their textbook
D) Observe a chemical reaction
Professor: Good morning. This week, we're diving into the fascinating world of bioluminescence—the production and emission of light by a living organism. It's a chemical reaction, not a reflection of light. A classic example is the firefly, which uses its light for mating signals. We'll examine the chemical processes involved and explore its diverse functions in marine environments, from attracting prey to deterring predators. Please read chapter five before our next class on Wednesday.
Highlights
| ID: | #io2963384122 |
Tags
New TOEFL