react

He reacted angrily to the suggestion that he had lied..说他撒谎，他非常生气。

She reacted very badly (= was very upset ) when her parents split up..父母离婚的时候，她非常难过。

You have to react quickly to circumstances..你必须对形势迅速作出反应。

re ＋ act(行动， 表现) → 作出反应记忆

react onv. 起作用于；对…有影响

react against反抗；反对；起反作用

真题例句...then it would react to the irregular beeps by stirring people from sleep and would ignore the regularly timed ones...CET42017.12阅读理解