高考总复习：高二重点词汇二编稿：李万杰责编：王春霞知识讲解重点单词：assist【点拨】assistvi.&vt.&n．帮助；援助；协助assistsb.withsth.帮助某人做某事assistat/insth.参加某事物Weallassistedinmendingtheroof.我们都帮助修理屋顶。assistsb.indoingsth./todosth.帮助某人做某事Weaskedhimtoassistusindesigninganewbridge.我们请他帮助我们设计一座新桥。Thestudentsassistedtheprofessorindoingtheexperiment.学生们协助教授做实验。withtheassistanceof在……的帮助下Hecanwalkonlywiththeassistanceofcrutches.他只能靠一副拐杖走路。cometosb.’sassistance帮助某人Despitehiscries,noonecametohisassistance.尽管他喊叫，却没有人来帮助他。【拓展】assistancen．援助；帮助；补助assistantn．助手；助理adj.辅助的；助理的concentrate【点拨】concentratevt.集中；全神贯注concentrate(sth.)on(doing)sth.集中于；专心于……beconcentratedin/on/uponsth.集中于，专心于HeconcentratedonthestudyofEnglish.他把重点放在英语学习上。Ourpopulationisconcentratedinthebigcities.我国人口集中在大城市里。concentrateone’sattention/efforts/thoughtson...把注意力/努力/思想集中到……Weshouldconcentratealloureffortonimprovingeducation.我们应该致力于改进教育工作。concentrationn.专心；专注【拓展】下列短语和concentrate近义，短语中in,to都是介词，后接名词或动名词。focus/fixone’sattentionon...集中注意力于……putone’smind/heartin(into)专心于……beabsorbedin...一心一意于……applyoneself/one’smindto...专心于……payattentionto专心，注意……inform【点拨】informvt.告知；通知informsb.of/aboutsth.告知某人某事Pleaseinformusofanychangeofaddressassoonaspossible.地址如有变更请尽快通知我们。informsb.(that)...通知某人Weregrettoinformyouthatyourapplicationhasbeenrejected.我们很遗憾地通知你，你的申请未被接受。keepsb.informed使某人随时了解最新情况Pleasekeepmefullyinformedofanydevelopments.事态如有发展，请向我提供详情。【拓展】informedadj.了解情况的；见识广的case【点拨】casen.情况；病例；案例incaseof...假使……，万一……incase以防，万一inanycase无论如何，总之inthis/thatcase如果这样/那样的话，在这种/那种情况下innocase决不inthecaseof就……来说asisoftenthecase这是...
