精选优质文档-倾情为你奉上高一英语必修一Unit4Earthquakes知识点讲解和练习课堂讲解一、知识讲授1、In the city,the water pipes in some buildings cracked and burst .（1）爆裂, 爆发, 突然破裂The red balloon suddenly burst. 那个红色的气球突然爆了。(2)猛冲；突然出现 He burst into the room without knocking.【拓展】burst into laughter = burst out laughing 突然大笑 burst into tears = burst out crying 突然大哭2、It seemed as if the world was at an end! 【短语归纳】与end搭配的常用短语：专心-专注-专业come to an end vi.结束（用作谓语）bring/put sth.to an end vt.结束；制止
