Narrator: Listen to part of a lecture in an environmental science class. Professor: Today we're discussing the concept of 'carbon footprint' and how it's often misunderstood. Many people think it's just about the emissions from their cars or home energy use. But actually, it includes everything from the food we eat to the clothes we buy. For example, producing a single cotton t-shirt can emit over 2.5 kilograms of carbon dioxide, mostly due to the energy used in farming, manufacturing, and transportation. Similarly, the meat industry has a significant impact—beef production emits far more greenhouse gases than chicken or vegetables. However, there's a growing trend called 'carbon offsetting,' where individuals or companies pay for projects that reduce emissions elsewhere, like planting trees. While offsetting can help, experts argue that the most effective way to reduce your footprint is to consume less and choose sustainable products. So, when we talk about individual responsibility, it's not just about one action, but a cumulative set of choices.
❓ 문제 What is the professor's main point about reducing one's carbon footprint?
A. A) Carbon offsetting is the most effective method to reduce emissions.
B. B) Individual carbon footprints are limited to car and home energy use.
C. C) Reducing consumption and choosing sustainable products matter most.
D. D) Meat production has little impact compared to clothing manufacturing.
✅ 정답
C) Reducing consumption and choosing sustainable products matter most.
TOEFL Listening Tips
Skim the questions first to predict the content
Watch for signal words in lectures and conversations (however, actually, in fact)
For main idea questions, focus on the beginning; for detail questions, focus on examples and data
For attitude questions, pay attention to the speaker's tone and word choice
Take notes on keywords; don't try to write down every word
