Unit 4 单词讲义-2023-2024学年高中英语外研版（2019）选择性必修第二册

Unit4单词讲义 boundary 词性：名词 中文意思：边界，界限 英文释义：a line that marks the limits of an area or a country 词源：来自古英语“bunduru”，意为“限制”或“束缚”。 例句：The fence marks the boundary between our two properties. 固定搭配：cross the boundary, set a boundary, push the boundaries 近义词：limit, frontier, border statistic 词性：名词 中文意思：统计数字，统计数据 英文释义：a number or figure that represents a quantity or measurement 词源：来自拉丁语“status”，意为“状态”或“情况”。 例句：According to the latest statistics, unemployment is at an all-time high. 固定搭配：statistics show, statistical analysis, statistical evidence 近义词：figure, number, data assist 词性：动词 中文意思：帮助，协助 英文释义：to help someone do something or make it easier for them to do it 词源：来自拉丁语“assistere”，意为“站在旁边”。 例句：I will assist you in preparing for the exam. 固定搭配：assist with, assist in, assist someone in doing something 近义词：help, aid, support tackle 词性：动词 中文意思：处理，解决；抓住，擒住 英文释义：to deal with a problem or situation; to catch hold of someone or something 词源：来自古英语“tacian”，意为“抓住”或“处理”。 例句：We need to tackle this issue before it gets worse. 固定搭配：tackle a problem, tackle a task, tackle an opponent 近义词：deal with, handle, confront vital 词性：形容词 中文意思：至关重要的，生死攸关的 英文释义：extremely important and necessary for survival or success 词源：来自拉丁语“vitalis”，意为“生命的”。 例句：Good communication is vital for a successful team. 固定搭配：vital signs, vital organs, vital role 近义词：essential, crucial, critical comrade 词性：名词 中文意思：同志，朋友（尤指政治上的） 英文释义：a person who shares your political beliefs and activities 词源：来自法语“comrade”，意为“同志”。 例句：My comrades and I have been working together for years. tragic 词性：形容词 中文意思：悲剧的，悲惨的 英文释义：causing great sadness or suffering 词源：来自希腊语“tragikos”，意为“表演悲剧的”。 例句：The tragic accident left the family in despair. 固定搭配：tragic hero, tragic fate, tragic ending 近义词：sad, sorrowful, mournful combat 词性：动词/名词 中文意思：战斗，搏斗；与……斗争，对抗 英文释义：to fight against an enemy or opponent; struggle against something 词源：来自拉丁语“combattu”，意为“战斗”。 例句：The soldiers were trained to combat any threat to their country. 固定搭配：combat crime, combat poverty, c