Before traveling in space, you must know

问题选择题

Before traveling in space, you must know what it might feel like_____in an imaginary environment.

A．to travel

B．traveling

C．to be traveling

D．travel

答案

答案：A

本题易受到feel like doing sth的影响而误选B, 此处feel like的意思为 “感觉象什么”, it 为形式主语,真正的主语为不定式短语。句意：太空旅行前，你必须知道在模拟环境下行走时的感觉。