Unit 4 Breaking boundaries一词一句单词讲解课件 2023-2024学年外研版选择性必修第二册

SB2U4 Breaking boundaries 1 boundary [ baund ri] n.界线;分界;边界 Many students will draw a line on the desk as a boundary. 许多学生会在课桌上画一条线作为分界。 statistic [st tistik] n. (一项)统计数据 These statistics can help analyze the stock market. 这些统计数据有助于分析股市。 assist [ sist] vt.帮助,协助 They assissted each other to the top of the mountain. 他们互帮互助登上了山顶。 tackle [ t kl] vt.处理,对付;解决 n.阻截 The firefighters successfully tackled the blaze. 消防员们成功地扑灭了大火。 vital [ vaitl] adj.极其重要的 Water is vital to living beings. 水对生物来说是必不可少的。 comrade [ k mrid] n.伙伴;同事;挚友;同志 Two boys became comrade after an outdoor activity. 一次户外活动,两个男孩变成了好“战友”。 tragic [ tr d ik] adj.悲惨的;不幸的 There was a news report about the tragic accident on the highway. 高速公路上发生了悲惨的交通事故。 Ebola [i'b ul ] n. 埃博拉病毒 埃博拉病毒(Ebola virus)是一种十分罕见的病毒,于1976年在苏丹南部和刚果(金)(旧称扎伊尔)的埃博拉河地区发现。 埃博拉是世界上最高级别的病毒之一,比艾滋病病毒还要可怕得多。 病毒一旦入侵人体,医学治疗的速度就很难赶上病毒攻击人体的速度。它较强的传染性和最高达90%的病死率,如未及时防控很容易让疫情大规模爆发,所以埃博拉也被称为最致命的病毒之一。 combat [ k mb t] v.防止,抑制;与...战斗 n.战斗,格斗 I have to combat my desire to eat the chocolate cake. 我不得不抑制自己想吃巧克力蛋糕的欲望。 relieve [r 'li v] v.给(某人)换班 ;减轻;消除 His colleague came to relieve him at six o’clock. 他的同事六点钟来接他的班。 specialist [ spe list] n.专家;技术兵 These people are leading specialists in their respective fields. 这些人在他们各自的领域都是顶尖专家。 infectious [in fek s] adj.传染(性)的;感染性的 Her yawn was so infectious that everyone in the office yawned with her. 她的哈欠极具感染力,以至于办公室里的每个人都跟着她打起了哈欠。 clinic [ klinik] n.诊所,义诊所 Patients are waiting to see a doctor in the clinic. 病人们在诊所里等着看病。 disinfect [ disin fekt] vt.将…消毒;净化 The staff disinfect the subway every week for passengers’ safety. 为了确保乘客的安全,工作人员每周都会对地铁进行消毒。 outbreak [ autbreik] n.暴动;爆发;突发 v. 爆发 (outbroke, outbroken) The soldiers were adequately prepared for the outbreak of war. 战士们在战争爆发前做了充分的准备。 devotion [di v u n] n.献身,热爱 Many people show great devotion to their professions. 许多人展示了他们对职业的非凡投入。 vomit [ v mit] n.吐出物;催呕药 v. 呕吐;吐出= throw up That's not his vomit but the waterfall. 那不是他的呕吐物而是瀑布。 miracle [ mir kl] n.奇迹;惊人的事例 It’s such a miracle t