新视野大学英语句子解析 第1册 Unit 10A:Language Point 4
Language Point 4
They didn't have to talk about it — they demonstrated this truth by their life style. (Para. 1)
Meaning: My grandparents didn't have to explain the saying; their life style just proved how true the saying is.
demonstrate: vt. 1. show clearly
The teacher demonstrated how to make the experiment.
The company demonstrated its new solar power system before a large audience.
The amount of sickness in this district demonstrates that the water pollution levels are too high.
When "demonstrate" is used in the sense of taking part in a march, it is an intransitive verb.
vi. 2. take part in a march or meeting to protest or to make demands
An angry crowd demonstrated in front of the mayor's office for more protection of the environment.
A large group of people were demonstrating in front of the factory, which had polluted the river.