Unit 3 Sea Exploration Words and Expressions 课件-2025-2026学年高中英语人教版选择性必修第四册

该高中英语课件围绕“海洋探索”主题，系统呈现核心词汇及表达，涵盖音标、词性、派生词、短语搭配及例句，通过动词短语对比练习和语法填空搭建学习支架，帮助学生从基础理解过渡到语境应用。 其亮点在于多维度词汇讲解与情境化练习结合，通过派生词关联（如extend-extensive）、短语辨析（如set sail/set off）提升语言能力，语法填空训练思维品质，助力学生掌握科学学习策略，也为教师提供系统教学资源，提高课堂效率。

Unit 3 Sea Exploration words and expressions merchant  /ˈmɜːtʃənt/ n.商人;批发商 adj.海上货运的 businessman n.商人；企业家 trader n.商人 我们把它卖给棉花商人。 We sell it to the cotton merchant. 起航;开航 set 动身;出发;引发:引爆(炸弹);触响(警报) set (doing sth) 开始:着手 set (to do sth) 出发；动身 set 建立；创建 set 制定；写下；记下 off about out up down set sail 根据句意完成句子 set sail; set off; set about; set out; set up; set down ① Ralph W.Emerson would always set new ideas that occurred to him. ② We ought to set at 7:00 when the roads are empty. ③ Soon, the lawyer set collecting evidence. ④ She set an educational fund in memory of her mother. ⑤ When Columbus set , he apparently assumed the earth was round. down off about up sail extend /ɪkˈstend/ vt.扩展;使伸长;延长 extend into 扩长到; 持续；延展到 extend over 延长；伸展 extend to 影响；扩展；适用范围扩及 extension n.延伸；延长 extensive adj.广泛的；广阔的 ① The meeting will extend the weekend. ② These rules do not extend children under the age of 12. ③ The company plans to extend its operations Europe. into to into negotiate /nɪˈɡəʊʃieɪt/ vt.商定;达成(协议)vi.谈判;磋商;协商 negotiate with 与...谈判/协商 negotiate for 为...进行谈判/协商 negotiate about 关于...进行谈判/协商 negotiation n. 谈判; 磋商; 协商 negotiator n.谈判者；磋商者 negotiable adj.可协商的 ① He has insisted that his organisations will not negotiate the competitors. ② Of course, you should try to negotiate the lower amount. with for behold /bɪˈhəʊld/ vt. 看;看见 behold-beheld-beheld beholder n.旁观者；观看者 onlooker； bystander 旁观者 她的容貌十分悦目。 Her face was a joy to behold. 我们早起观看了日出。 We got up early to behold the sunrise. royal /ˈrɔɪəl/ adj.皇家的;王室的;高贵的 royally adv. 庄严地 royalty n.王室；王权 the royal family 王室 a royal welcome 盛大的欢迎 the royal road 容易取得成功的捷径，坦途 学无坦途。 There’s no royal road to learning. withdraw  /wɪðˈdrɔ/ vi.＆vt (使)撤回;撤离 withdraw-withdrew-withdrawn withdrawal n.退出；撤回；取款 withdraw from 退出；撤回 ① Some citizens organised a campaign for Britain’s (withdraw) from the EU. ② I don’t know if he will withdraw the contest. ③ In our bank, you can make (withdraw) at any time. withdrawal from withdrawals bond /bɒnd/ n.纽带;关系 vt.＆vi.增强信任关系;使牢固结合 bond A and/to B 把A和B结合 bond with sb 增强与某人的信任关系 这不能把木料粘贴到金属上。 It cannot be used to bond wood to metal. 父母从小与孩子建立亲密关系很重要。 It’s important for parents to bond with their children from an early age. politics /ˈpɒlətɪks/ n.政治;政治观点 political adj. 政治的 politician n. 政治家; 政客 policy n.政策，方针 profession /prəˈfeʃn/ n.职业;行业 professional adj. 职业的; 专业的; 娴熟的 n.专门人员;专家; 职业运动员 professor n. 教授; 专家 她是她那个行业的佼佼者。 She was at the very top of her profession. mixture  /ˈmɪkstʃə(r)/ n.混合;结合体;混合物 a mixture of A and B A和B的结合体/混合 mix A with B=mix A and B 把A和B混合起来 mix up 混淆；弄混 mix v.(使)混合; 融合 n.混合; 混杂 mixed adj.混合的;混杂的 我们怀着惊恐交加的心情听了这则消息。 We listened to the news with a mixture of surprise and horror. coverage /ˈkʌvərɪdʒ/ n.新闻报道;覆盖范围 cover v. （一词多义） 采访；报道 ：cover the conference 覆盖；盖：Snow covered the ground. 包括；涉及：The lectures covered a lot of ground. 占(一片面积)：cover an area of… 行走（一段路程）：We have covered 30 miles. 足以支付：100 yuan can cover your expenses. media/newspaper/press coverage 媒体/报纸/报刊的报道 applaud  /əˈplɔːd / vt.＆vi.鼓掌 vt.称赞;赞赏 applause n. 鼓掌; 喝彩 applaud for 为……喝彩 applaud sb for sth 因某事而赞扬某人 我赞扬他有勇气面对如此大的一个挑战。 I applauded him for having the courage to face such a big challenge. manned  /mænd/ adj.有人控制的;需人操纵的 unmanned adj.无(需)人操作的；自控的 man n.男人；人类； vt.操纵（机器）；在……岗位上工作 manual adj.手动的；手工的 n.手册 manned space flight 载人航天 manned submersible 载人潜水器 未来30年内，该国有可能会把载人航天器送上火星。 In thirty years from now, the country should have a manned spacecraft on Mars. underwater  /ˌʌndəˈwɔːtə(r)/ adv.在水下 adj.水下的 underground adj.地下的 underline v.在(词语等下)划线；强调 underneath prep/adv.在下面 underwear n.内衣；衬衣 underestimate v.低估 underwater creatures 水生动物 an underwater camera 水下摄影机 migration /maɪˈɡreɪʃn/ n.迁移;迁徙;移居 migrate v.迁徙；移居 migrant n.迁居者；移民 migratory adj.迁徙的 mass migration 大规模迁徙 migrant workers 流动工人 燕子在秋季开始向南迁移。 Swallows begin their migration south in autumn. exploit /ɪkˈsplɔɪt/ vt.开发;利用;剥削 exploiter n.剥削者；压榨者 exploitation n.剥削；开发 exploit sth (for sth) 为获取…而开发… exploit sb 剥削某人 这个国家为获取硬木而开发热带雨林。 The country exploits the rainforests for hardwood. 该公司利用长工时、低工资的方法来剥削工人。 The company exploited its workers with long hours and low pay. murder  /ˈmɜːdə(r)/ vt.谋杀;凶杀;毁坏 n.谋杀;凶杀 murderer n.杀手; 凶手 murderous adj.蓄意谋杀的；凶残的 commit a murder 犯谋杀罪 get away with murder 逍遥法外；(做了错事而)安然无事 写出下列划线词的词性及含义。 ① The murdered woman was well known in the area. ② The only thing he had murdered was the science fiction. ③ He was put on trial for attempted murder. vt.谋杀；凶杀 v.毁坏 n.谋杀；凶杀 mercy /ˈmɜːsi/ n.仁慈;宽恕;恩惠 show mercy to 对...表示怜悯/宽恕 have mercy on/upon 对...表示怜悯/宽恕 at the mercy of 任凭……的摆布; 在...的支配中 without mercy 残忍地;毫不留情地 merciful adj.仁慈的;慈悲的;宽容的 merciless adj. 无情的；残忍的 单句语法填空 ① He was such a cruel man that he showed no mercy others. ② When they were about to kill them, he begged them to have mercy him. ③ Having lost the engine’s power, the boat was now the mercy of the wind. ④The newspaper attacked him mercy. ⑤He is generous and (mercy) to those who are weaker than him. to on/upon at without merciful possession /pəˈzeʃn/ n.[usually pl.]个人财产; 拥有;控制 be in the possession of sb =be in one's possession 为某人所有；归某人所有 possess vt.控制；使掌握；持有 possessor n. 持有人；所有人 possessive adj. 占有欲强的；不愿分享的 这伙人被抓住，人赃俱获。 The gang was caught in possession of stolen goods. opponent /əˈpəʊnənt/ n.反对者;对手;竞争者 oppose v.反对; 抵制;与…角逐 opposed adj.强烈反对的 我将反对改变这个法规。 I would oppose changing the law. oppose doing sth 反对做某事 log /lɒɡ;NAmE lɔːɡ/ vt. 把…载入正式记录;记录 n.正式记录;日志;原木 登录需要密码。 You need a password to log in. log in/on 登录；注册　 log off/out 注销；退出(计算机系统) log-logged-logged logging arrest /əˈrest/ n.逮捕;拘留;中止 vt.逮捕;拘留;阻止 make an arrest 进行逮捕 arrest sb for sth 因...逮捕某人 be under arrest 被逮捕 arrest one’s attention 引起某人的注意 ①The man was arrested breaking the law. ②It is shocking that the professor (arrest) for his remarks. ③You’re arrest. You’re here to assist my investigation. for was arrested under Thanks for your listening! $