Unit 5 Into the unknown二-2025-2026学年高中英语词义辨析及同义替换精讲选择性必修第四册（外研版）

高中选择性必修第四册外研版 【词义辨析精讲】 Unit 5 Into the unknown 外研版 【Unit5】Into the unknown二 词义辨析及同义替换精讲 本单元核心词汇 一、全部单元单词 expansion /ik'spaenfn/n.扩大；subdue/sab'dju:/v.克制，抑制look into调查（问题）（常用短 增加 (情绪) 语) getaway/'getswer/n.逃跑，逃the unknown不为人知的地方，investigation/m,vestI'gen/n 走 人类尚未到达的地方 调查 make a getaway逃跑，逃走（常 set out动身踏上（漫长的）旅途shipwreck/prek/n.失事的船： 用短语) (常用短语) 沉船 un for one's life逃命（常用短uncharted/n'tatd/adj.地图archaeological /.aki3'lod3k/ 语) 上没有标明的 adj.考古学的：考古的 check out调查，检查（常用短delve/delv/v.探索，探究 coral/'kpral/n.珊瑚（海洋生 语) throw oneself into积极投入到物，常形成珊瑚礁生态系统) test the waters试水，试探（常用 …中去（常用短语） millimetre/'milimi:ta(/n.毫米 短语) think twice再三考虑，慎重考虑barreleye/'baerali:ln.管眼鱼 steer clear of避开…；从…（常用短语） (深海鱼类，具有透明头部的独 处脱身（常用短语） shrink /frk/v.退缩，畏缩 特生理特征) retreat /rI'trit/v.后退；离开：shrink from避免做，不愿做（常 退避 用短语) 词义辨析及同义替换 1.investigation/m,vestI'geIfn/n.调查 词义辨析： investigation:指有系统、有组织的正式调查，常涉及对事件、问题的深入研究，名词。 check out:短语动词，侧重“检查、核实”，可指对事物的检验或对信息的确认，口语中也可表 示“退房”。 look into:短语动词，强调“深入调查、探究”，通常指对问题或情况的仔细审查。 同义替换： inquiry,probe 高中选择性必修第四册外研版 【词义辨析精讲】 Unit 5 Into the unknown 例句： The police have launched an investigation into the theft case. 真题链接：（外研版高中选择性必修第四册同步练习） The committee will the problem and report back next month. A.check out B.look into C.think twice (答案：B) 2.retreat'trit/v.后退；离开：退避 词义辨析： retreat::指因危险、困难等主动撤退，可表示具体的后退动作或抽象的退缩，动词。 shrink:侧重“畏缩、退缩”，常与from连用，指因害怕、犹豫而不敢做某事，动词。 同义替换： withdraw,pull back 例句： The soldiers were ordered to retreat when they faced strong enemy attacks. 真题链接：（外研版高中选择性必修第四册单元测试） She never from challenges and always tries her best to solve them A.retreats B.shrinks C.subdues (答案：B) 3.subdue/sab'dju/v.克制，抑制（情绪） 词义辨析： ube:指有意识地克制或压制强烈的情绪、欲望等，使其不外露，动词。 同义替换： restrain,control 例句： He tried to subdue his anger when he heard the bad news. 真题链接：（外研版高中选择性必修第四册练习册） It's important to your excitement before making an important decision A.subdue B.retreat C.delve (答案：A) 4.delve/delv/v.探索，探究 2 高中选择性必修第四册外研版 【词义辨析精讲】 Unit 5 Into the unknown_ 词义辨析： delve:指深入、细致地探索或研究某个主题、问题，常与into连用，动词。 throw oneself into:短语动词，强调“积极投入、全身心地做某事”，侧重行动上的投入。 同义替换： explore,research 例句： The scientist spent years delving into the mysteries of the deep ocean. 真题链接：（外研版高中选择性必修第四册期末复习题） After retirement,he local history and wrote several books about it. A.delved into B.threw himself into C.checked out (答案：A) 5.throw oneself into积极投入到…中去（常用短语） 词义辨析： throw oneself into:强调热情高涨、全身心地投入某项活动或工作中。 同义替换： devote oneself to,engage in 例句： She threw herself into the volunteer work and helped many people in need. 真题链接：（外研版高中选择性必修第四册同步练习） Since he started learning painting,he has it and made great progress. A.thrown himself into B.thought twice about C.shrunk from (答案：A) 6.shrink from避免做，不愿做（常用短语） 词义辨析： shrink from:指因胆怯、厌恶等原因而逃避或不愿做某事，后接名词或动名词。 think twice: 短语动词，指“再三考虑、慎重考虑”，强调在做决定前仔细思考。 同义替换： hesitate to,avoid 例句： A brave person never shrinks from taking responsibility 真题链接：（外研版高中选择性必修第四册单元测试） You should before making a decision that may affect your future. 3 高中选择性必修第四册外研版 【词义辨析精讲】 Unit 5 Into the unknown_ A.shrink from B.think twice C.test the waters (答案：B) 7.test the waters试水，试探（常用短语） 词义辨析： test the waters:指在采取重大行动前先进行试探，了解情况后再做决定。 同义替换： feel out,试探（中文同义短语） 例句： Before starting his own business,he tested the waters by working in a related company for two years. 真题链接：（外研版高中选择性必修第四册练习册） The company decided to the new market before launching the product nationwide A.test the waters B.make a getaway C.steer clear of (答案：A) 8.steer clear of避开…；从…处脱身（常用短语） 词义辨析： steer clear of:指有意识地避开某人、某物或某种情况，以免遇到麻烦。 run for one's life:短语动词，指“逃命、仓皇逃跑”，强调因生命受到威胁而快速逃离。 make a getaway: 短语动词，指“逃跑、逃走”，尤指犯罪后或遇到危险时逃离现场。 同义替换： keep away from,avoid 例句： It's wise to steer clear of arguments with stubborn people 真题链接：（外研版高中选择性必修第四册期末复习题） When the fire broke out,people rushed out of the building and A.ran for their lives B.steered clear of C.made a getaway (答案：A) 9.set out动身踏上（漫长的）旅途（常用短语） 词义辨析： set out:指为特定目的开始长途旅行或着手做某事，常与on a journey等搭配。 高中选择性必修第四册外研版 【词义辨析精讲】 Unit 5 Into the unknown 同义替换： embark on,start out 例句： They set out at dawn to climb the highest mountain in the region 真题链接：（外研版高中选择性必修第四册同步练习） The explorers on a dangerous journey to the uncharted area last month A.set out B.checked out C.retreated (答案：A) l0.he unknown不为人知的地方，人类尚未到达的地方 词义辨析： the unknown:定冠词he+形容词构成名词短语，指未知的事物、地方或领域。 uncharted:形容词，指“地图上没有标明的、未知的”，常作定语修饰名词。 同义替换： unknown places,unexplored areas 例句： Many brave explorers have risked their lives to explore the unknown 真题链接：（外研版高中选择性必修第四册单元测试） The team decided to explore the forest to study rare animals A.unknown B.uncharted C.archaeological (答案：B) 11.uncharted/n't∫atd/adj.地图上没有标明的 词义辨析： uncharted:强调地理上未被绘制在地图上的、未经探索的，形容词。 he unknown:名词短语，泛指所有未知的事物或领域，范围更广。 同义替换： unexplored,unmapped 例句： The scientists are planning an expedition to the uncharted ocean area. 真题链接：（外研版高中选择性必修第四册练习册） Exploring regions requires advanced technology and great courage. A.uncharted B.archaeological 高中选择性必修第四册外研版 【词义辨析精讲】 Unit 5 Into the unknown C.coral (答案：A) 12.expansion/k'spaenfn/n.扩大；增加 词义辨析： expansion:指在规模、范围、数量等方面的扩大或增长，名词。 同义替换： growth,enlargement 例句： The company's expansion into overseas markets has brought more profits. 真题链接：（外研版高中选择性必修第四册同步练习） The of the city has led to the construction of many new buildings. A.expansion B.investigation C.retreat (答案：A) l3.getaway/'getawer/n.逃跑，逃走 词义辨析： getaway:名词，指逃跑的行为或逃跑的机会，常与make a连用构成短语make a getaway: make a getaway:短语动词，与getaway词义相近，强调“成功逃脱”的动作。 un for one's life:短语动词，指因生命受到严重威胁而“逃命”，比make a getaway更紧急。 同义替换： escape,flight 例句： The thieves made a quick getaway with the stolen money. 真题链接：（外研版高中选择性必修第四册单元测试） When the earthquake happened,people to safe places as quickly as possible. A.made a getaway B.ran for their lives C.steered clear of (答案：B) l4.hink twice再三考虑，慎重考虑（常用短语） 词义辨析： think twice:指在做决定前仔细思考、权衡利弊，避免草率行动。 同义替换： consider carefully,weigh up 6 高中选择性必修第四册外研版 【词义辨析精讲】 Unit 5 Into the unknown 例句： You should think twice before quitting your job without finding a new one. 真题链接：（外研版高中选择性必修第四册练习册） He about investing all his money in the stock market and finally decided not to A.thought twice B.threw himself into C.tested the waters (答案：A) 综合演练 综合练习 一、单项选择 1.The police have launched a formal into the recent accident. A.check out B.look into C.investigation 2.When facing difficulties,she never from challenges but tries her best. A.retreats B.shrinks C.subdues 3.It's important to your anger when arguing with others. A.subdue B.delve C.retreat 4.After retirement,he the history of ancient civilizations. A.delved into B.threw himself into C.checked out 5.Before investing,many people prefer toto see if the market is stable A.test the waters B.shrink from C.make a getaway 6.The explorers on a journey to the uncharted island last week. A.set out 7 高中选择性必修第四册外研版 【词义辨析精讲】Unit5 Into the unknown三 B.steered clear of C.thought twice 7. regions require advanced technology to explore safely. A.Unknown B.Uncharted C.Archaeological 8.The company's into new markets has increased its profits. A.investigation B.expansion C.retreat 二、根据句意及汉语提示完成单词 1.The government will conduct a thorough (调查)into the food safety issue. 2.She tried to (her excitement when she heard the good news. 3.The scientists spent years (探索)the mysteries of the universe. 4.He decided to (试水)before starting his own business. 5.The team will (避开)risky areas during the expedition 6.The (of the factory will create more job opportunities. 三、用所给单词的适当形式填空 1.The committee needs to (investigation)the problem carefully. 2.He (retreat)from the competition due to an injury. 3.She (subdue)her emotions and spoke calmly. 4.They(delve)into the local culture during their trip 5.We should (think)twice before making a decision 四、完成句子（每空一词） 1.警方决定深入调查这个案件。 The police decided to the case. 8 高中选择性必修第四册外研版 【词义辨析精讲】 Unit 5 Into the unknown 2.他全身心投入到志愿工作中，帮助了很多人。 He the volunteer work and helped many people 3.探险队出发去探索未知的森林。 The expedition team to explore the forest. 4.在采取行动前，最好先试探一下情况。 It'sbetter to before taking action 五、语篇填空 阅读下面短文，在空白处填入一个适当的单词或用括号内单词的正确形式填空，使短文通顺、连 贯。 Explorers have always been drawn to the unknown.Last year,a team (set out/retreat)to explore an (unknown/uncharted)mountain range.Before the journey,they (tested the waters/thought twice)by studying maps and local reports.During the trip,they had to (steer clear of/make a getaway)dangerous cliffs.One even had to (subdue/shrink)his fear when facing a storm.Finally,their(expansion/investigation)of the area provided valuable data for science. 参考答案 I单项选择 1.C2B3.A4.A5.A6.A7.B8.B Ⅱ.根据句意及汉语提示完成单词 1.investigation 2.subdue 3.delving 4.test the waters 5.steer clear of 6.expansion 工用所给单词的适当形式填空 1.investigate 2.retreated 3.subdued 4.delved 5.think V.完成句子 1.look into 2.threw himself into 3.set out;uncharted 4.test the waters V.语篇填空 1.set out 2.uncharted 3.tested the waters 4.steer clear of 5.subdue 6.investigation 9