Unit 5 Into the unknown二-2025-2026学年高中英语重点词汇精讲选择性必修第四册（外研版）

高中·外研版 寒假专版 词汇核心考点精讲 【寒假专版】 高中·外研版·选择性必修第四册Unit5 Into the unknown二 单元词汇总览 expansion/k'spaenfn/n.扩大：增subdue/sab'dju:/v.克制，抑制用短语) 加 (情绪) look into调查（问题）（常用短 getaway/'getawer/n.逃跑，逃走the unknown不为人知的地方，语) make a getaway逃跑，逃走（常人类尚未到达的地方 investigation /in vestr'ger fn/n. 用短语) set out动身踏上（漫长的）旅途查 run for one's life逃命（常用短（常用短语） shipwreck/'prek/n.失事的船： 语) uncharted/n't∫atid/adj.地图沉船 check out调查，检查（常用短上没有标明的 archaeological a:kia'lpd3ikl/ 语) delve/delv/v.探索，探究 adj.考古学的：考古的 test the waters试水，试探（常throw oneself into积极投入到coral/'kor3/n.珊瑚（海洋生物， 用短语) …中去（常用短语） 常形成珊瑚礁生态系统) steer clear of避开…；从… think twice再三考虑，慎重考虑millimetre/milimi:te(r)/n.毫米 处脱身（常用短语） (常用短语) barreleye/barali:/n.管眼鱼（深 retreat/rI'ti:t/v.后退：离开：退shrink/rmkv.退缩，畏缩 海鱼类，具有透明头部的独特生 避 shrink from避免做，不愿做（常理特征） 词汇核心考点精讲 1.expansion/ik'spen/n.扩大；增加 ·核心考点：词性：名词(n) 2个核心义：扩大（范围/规模）、增加（数量/程度） ·必记搭配与例句：·economic expansion(经济扩张)：The country's economic expansion continued for a decade ●territorial expansion(领土扩张)：The empire'sterritorial expansion led to conflicts. ·重点派生词：·expand(动词)：expand the business（拓展业务) ●expansive(形容词)：expansive policies(扩张性政策) 2.retreat /rI'tri:tV.后退；离开；退避 ·核心考点：词性：动词(v.)/名词(n.) 3个核心义：后退（动作）、离开（场所）、退避（情绪） ·必记搭配与例句：●retreat from(从…撤退)：The army retreated from the front line 高中·外研版 寒假专版 ●in retreat(处于撤退中)：Enemy forces are now in retreat. ●retreat into oneself(自我封闭)：She retreated into herself after the accident.. ·重点派生词：●retreating(形容词)：retreating forces(撤退的部队) ●retreater(名词)：a retreater(撤退者) 3.subdue/sab'dju/v.克制，抑制（情绪） ·核心考点：词性：动词(v) 2个核心义：克制（情绪）、征服（敌人自然） ·必记搭配与例句：·sbt1eone's anger（克制愤怒)：He tried to subdue his anger before speaking ●subdue the rebellion(平定叛乱)：The government sent troops to subdue the rebellion. ·重点派生词：·subdued(形容词)：subdued mood(压抑的情绪) ●subduing(现在分词)：the subduing of nature（征服自然) 4.delve/delv/v.探索，探究 ·核心考点：词性：动词(V) 2个核心义：探索（抽象事物）、探究（细节） ·必记搭配与例句：·delve into(深入研究)：Scientists delved into the causes of the disease. ●delve for(搜寻)：Archaeologists delved for artifacts in the ruins.. ·重点派生词：·delving(名词)：deep delving(深入探究) ·delver(名词)：a delver(探究者) 5.shrink/r四kv.退缩，畏缩 ·核心考点：词性：动词(v) 2个核心义：退缩（畏惧）、收缩（物理/抽象） ·必记搭配与例句：●shrink from(避免做)：He never shrinks from hard work. ●shrink in size(尺寸收缩)：Woolen clothes may shrink in hot water. ·重点派生词：·shrinking(形容词)：shrinking population(人口减少) ●shrinkage(名词)：shrinkage of the economy(经济菱缩) 6.investigation/m,vestI'gern/n.调查 ·核心考点：词性：名词(n) 2个核心义：调查（事件）、探究（问题） ·必记搭配与例句：·carry out an investigation(开展调查)：Police carried out an investigation into the robbery. ●under investigation(在调查中)：The case is still under investigation, ·重点派生词：·investigate(动词)：investigate the accident(调查事故) ●investigative(形容词)：investigative journalism(调查性新闻) 高中·外研版 寒假专版 7.archaeological/.aki3'lpd3k/adj.考古学的；考古的 ·核心考点：词性：形容词(adj) 1个核心义：考古学的（学科相关） ·必记搭配与例句：●archaeological site(考古遗址)：The team discovered an archaeological site in the desert. ●archaeological research(考古研究)：Her archaeological research focuses on ancient civilizations. ·重点派生词：·archaeology(名词)：study archaeology(学习考古学) ●archaeologist(名词)：a famous archaeologist(著名考古学家) 8.uncharted/n'tfa:tId/adj.地图上没有标明的 ·核心考点：词性：形容词(adj) 2个核心义：地图上未标明的（地理）、未知的（领域） ·必记搭配与例句：·uncharted territory(未知领域)：Space exploration is still uncharted territory. ●uncharted waters(陌生水域)：The new policy enters uncharted waters for the industry. ·重点派生词：●unchartedness(名词)：the unchartedness of the area(区域的未知性) 9.check out调查，检查（常用短语） ·核心考点：词性：动词短语(v.+adv,) 2个核心义：调查（信息）、退房（酒店） ·必记搭配与例句：。check out the information(核实信息)：Please check out the details before submitting ●check out of(从…退房)：We checked out of the hotel at noon. ·重点派生词：●checkout(名词)：hotel checkout(酒店退房) 10.test the waters试水，试探（常用短语） ·核心考点：词性：动词短语(v.+n.+prep.) 1个核心义：试探（反应/可能性） ·必记搭配与例句：·test the waters before(行动前试探)：He tested the waters before proposing the plan ●test the waters for（为…试水)：The company tested the waters for market expansion, ·重点派生词：●water-testing（名词)：careful water-testing(谨慎试探) 11.steer clear of避开…；从…处脱身（常用短语） ·核心考点：词性：动词短语(v.+adj+prep.) 1个核心义：避开（危险/麻烦） 高中·外研版 寒假专版 ·必记搭配与例句：·steer clear of trouble(避开庥烦)：You should steer clear of arguments with him. ●steer clear of sb/sth(避开某人/某物)：Steer clear of the broken glass on the floor.. ·重点派生词：●clear--steering(名词)：clear-steering strategy(规避策略) 12.throw oneself into积极投入到…中去（常用短语) ·核心考点：词性：动词短语(v.+pro.+prep.) 1个核心义：积极投入（活动） ·必记搭配与例句：●throw oneself into work(投身工作)：She threw herself into her studies after the vacation. 。throw oneself into sth(全身心投入)：He threw himself into the volunteer project. ·重点派生词：●self-throwing(名词)：complete self-throwing(全身心投入) l3.think twice再三考虑，慎重考虑（常用短语) ·核心考点：词性：动词短语(v.+num.) 1个核心义：再三考虑（决定） ·必记搭配与例句：●think twice before(做前三思)：Think twice before signing the contract. ●think twice about(对…慎重考虑)：She thought twice about accepting the job offer ·重点派生词：●twice-thinking(名词)：careful twice-thinking(谨慎思考) 14.set out动身踏上（漫长的）旅途（常用短语） ·核心考点：词性：动词短语(v.+adv.) 2个核心义：动身（旅途）、着手（任务） ·必记搭配与例句：●set out for(动身去…)：They set out for the mountain at dawn. ●set out to do(着手做…)：We set out to solve the problem, ·重点派生词：●outset(名词)：at the outset(开始时) 词汇核心考点综合训练 1.一、单项选择 1.The government's new policy aims to promote economic through tax reductions. 。A.expand ·B.expansion 高中·外研版 寒假专版 ·C.expansive ●D.expansively 2.After the fierce battle,the enemy forces were forced to from the occupied city. ·A.retreat ●B.withdraw 。C.retire ·D.reverse 3.She tried to her disappointment when she heard the bad news. 。A.subdue ●B.shrink 。C.retreat 。D.delve 4.Scientists have been into the relationship between climate change and animal migration for years. ·A.exploring 。B.delving ·C.investigating 。D.checking 5.Woolen sweaters tend to if washed in hot water. ●A.shrink ●B.retreat ●C.subdue ●D.shrinkage 6.The police have launched a thorough into the recent theft case. 高中·外研版 寒假专版 ·A.investigate ●B.investigation ●C.investigative ●D.investigator 7.The team discovered an site containing ancient tools and pottery. ●A.archaeology ●B.archaeologist ●C.archaeological 。D.archaeologically 8.The development of AI technology has entered territory with ethical challenges. ·A.uncharted 。B.charted ●C.unknown ·D.unexplored 9.Before signing the contract,you should the company's background carefully. ●A.check out ●B.look into 。C.test the waters ●D.steer clear of 10.Entrepreneurs often with small investments before expanding their business. ●A.set out B.throw themselves into ●C.test the waters 高中·外研版 寒假专版 ·D.think twice 2.二、根据提示补全句子 1.The company plans to (expansion)its market to Southeast Asia next year.(用所给词的s动 词形式填空) 2.After the argument,he (retreat)into his room and refused to talk to anyone.(用所给词的 过去式填空) 3.The (subdue)crowd finally calmed down after the police arrived.(用所给词的形容词形 式填空 4.The (archaeology)findings have rewritten the history of this region.(用所给词的形容词 形式填空) 5.The (shrink)of the manufacturing industry has led to rising unemployment..(用所给词的 名词形式填空) 6.She (delve)into the old files to find evidence for her research.(用所给词的过去式填空) 3.三、首字母填空 1.The company's territorial e has caused tensions with neighboring countries.(根据”扩大 (范围/规模)”填写名词) 2.It's wise to t the waters before making a major investment in the stock market.(根据'试 探（反应/何能性)”填写动词短语开头词) 3.You should s clear of the construction site as it's dangerous.(根据”避开（危险/麻烦）” 填写动词短语开头词) 4.The scientists spent years d into the mystery of the ancient civilization.(根据”探究（细 节)”填写动词) 5.The case is still under i so no conclusion has been reached yet..(根据”调查（事件）”填 写名词) 4.参考答案 ·一、单项选择 1B2.A3.A4.B5.A6B7.C8.A9.A10.C ·二、根据提示补全句子 1.expand 2.retreated 3.subdued 4.archaeological 5.shrinkage 6.delved ·三、首字母填空 1.expansion 2.test 3.steer 4.delving 5.investigation