an active volcano 活火山

an extinct volcano 死火山

a dormant volcano休眠火山

知识拓展

火山学 volcanology -logy: "...... 学/论。"

oceanology climatology

火山学家 volcanologist -ist "......学家 "

pianist physicist

2. Have you ever considered how weak humans are compared with a volcano, hurricane or earthquake?

consider大致有两种含义。含义不同，用法有别。

知识拓展

①consider作"考虑"解，常用于以下句型：

consider+名词/代词/动名词

consider+从句或"疑问词+不定式"。

You'd better__________________________.

你最好考虑我的建议。

I'm _________________abroad some day.

我一直考虑有一天出国。

Have you considered_________________?

你们考虑他的建议了吗？

We must consider________________.