Unit 4 Earthquakes 核心单词1. burst vt. & vi. (burst, bursting)爆炸；胀裂；突然而起；闯入；充满；满盈；n. 突然破裂；爆发联想拓展burst out 迸发；突然发作；突然……起来burst open 推开；忽然打开； 裂开burst through 冲开；冲破；拨开burst in upon 打断(谈话等)；突然出现； 突然到达burst in/ into 闯入； 突然出现； 突然……起来； 突然发作另外，burst into 后接名词时可表示不同的意义：burst into laughter 突然大笑起来burst into tears 突然大哭起来burst into cheers 突然欢呼起来burst out 后接动名词也表示同样的意思burst out laughing/crying 突然大笑/哭起来高手过招单项填空Every time he thought of his past, he couldn’t help bursting .(2010·济南一模)A. when; out tears B. that; into cryingC. which; into tears D. /; out crying解析：选 D。burst out 后接 v.-ing 形式，every time 相当于连词，引导状语从句。故选 D。2. event n. 事件；大事；比赛项目The new book was the cultural event of the year.这本新书的出版是今年文化界的大事。Coming events cast their shadows before.未来之事先有征兆。The next event will be the 100-metre race.下一个比赛项目是 100 米赛跑。常用结构：at all events 无论怎样in any event 无论如何in the event of 万一；倘若In the event of rain, the game will be postponed.要是下雨，球赛就延期。易混辨析occurrence/event/incident/accidentoccurrence 系常用词, 指“任何发生的事件”。event 指“有重要意义的历史事件、重大事件”。incident 指“事件”, 尤指“比较不重要的小事件”。用心 爱心 专心1accident 指“意外事故”。高手过招单项填空①The National Day and the International Labour Day are great in our country.(2010·河南镇平二轮)A. things B. incidentsC. accidents D. events②How many are going to be held in this Summer Olympic Games?(2010·江苏启东一轮)A. accidents B. incidentsC. events D. sports ① 解析：选 D。考查词义辨析。things 是普通用词，指“情况；状况”；incident 意为“事情；发生的事（常指小事）”；accident 意为“事故”...
