Challenge Yourself A-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二册（重庆大学版）

选择性必修第二册重庆大学版 【词义辨析精讲】 Challenge Yourself A 词汇精讲 【Challenge Yourself A】核心词汇精讲 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 idiom/'1diam/n.习语；成语 地；平静地 sensation/sen'seIn/n.感觉；轰 routine /ru:'tin/n./ad.常规：日complete/kam'plit/adj./w.完整动 常的 的：完成 sense/sens/n.W.感觉；意识到 precisely /pri'sarsli/adv.精确地；uncompleted /nkam'pli:tId/faithfulness/'fe0 flnas/n.忠诚： 恰恰 adj.未完成的 忠实 precise/prI'saIs/adj.精确的：准completed /kam'pli:td/adj.已完faithful/'feIf/adj.忠诚的：忠 确的 成的 实的 due/dju/adj./acw.到期的；正因engagement/m'gerd3mant/n.参faith/fed/n.信仰：信念 为 与：约会 unconditional /Ankan'di fanl/ treat/rit/v.n.对待；款待 engage /in'geId3v.参与；从事：adj.无条件的 peacefully /'pi:sfuli/adv.和平吸引 词义辨析及同义替换 1. precise /prI'sais/adj..精确的；准确的 词义辨析： precise:侧重描述数据、语言等“精确的、准确无误的”，强调细节上的准确。 exact:指“完全符合事实或标准的”，语气比precise更强，可互换但更强调“丝毫不差”。 同义替换： exact,accurate 例句： The experiment requires precise measurements to ensure the result is reliable. 真题链接：（重庆大学版高中选择性必修第二册同步练习） The scientist gave a description of the chemical reaction process. A.vague B.precise C.casual(答案：B) 2.precisely /pri'saisli/adv.精确地；恰恰 选择性必修第二册重庆大学版 【词义辨析精讲】 Challenge Yourself A 词义辨析： precisely:副词，对应precise,强调“精确地、恰好”，可用于回答时间、数量等。 exactly:副词，对应exact,侧重“完全正确地”，口语中常用“Exactly!”表赞同。 同义替换： exactly,accurately 例句： The train will arrive precisely at 8:30 a.m 真题链接：（重庆大学版高中选择性必修第二册单元测试） -When should we hand in the report? by Friday afternoon. A.Possibly B.Precisely C.Gradually (答案：B) 3.complete /kam'pli:t/adj./v.完整的；完成 词义辨析： complete作形容词：指“完整的、全部的”，强调不缺少任何部分。 whole:侧重“整体的、未分割的”，常与the连用，如the whole story。 complete作动词：意为“完成”，强调动作的终结，宾语多为任务、工程等。 finish:普通用词，指“结束、完成”，宾语可为人、活动或任务。 同义替换： (adj.)whole,entire;(v.)finish,accomplish 例句： (1)She needs a complete set of reference books for her research (2)He has completed the project ahead of schedule. 真题链接：（重庆大学版高中选择性必修第二册同步练习） After three months of hard work,they finally the construction of the new library. A.completed B.started C.abandoned (答案：A) 4.completed/km'pli:tid/adj.已完成的&uncompleted/,nkam'pli:trd/adj.未完成的 词义辨析： completed:强调“己完成的”，表动作结束后的状态。 finished:与completed作形容词时近义，但finished更口语化。 uncompleted:“未完成的”，反义词是completed,侧重动作未终结。 unfinished:与uncompleted同义，更常用，如unfinished work。 同义替换： completed->finished,accomplished uncompleted-unfinished,incomplete 例句： (1)The completed task was praised by the teacher. (2)The uncompleted project needs to be continued next week 选择性必修第二册重庆大学版 【词义辨析精讲】 Challenge Yourself A 真题链接：（重庆大学版高中选择性必修第二册单元测试） Please hand in all assignments before the end of the term A.completed B.uncompleted C.interesting (答案：A) 5.engage/Im'ged3/v.参与；从事；吸引&engagement/m'geId3mant/n.参与：约会 词义辨析： engage作“参与”时：搭配engage in,强调主动投入某项活动。 participate:不及物动词，搭配participate in,更正式，指“参与、参加”。 engage作“吸引”时：指“引起兴趣或注意力”，如The story engaged her. attract:侧重“吸引（注意力、情感等）”，如attract attention。 engagement:名词，指“参与”时搭配engagement in;指“约会”时为可数名词。 同义替换： engage->participate,involve;engagement->involvement,appointment 例句： (1)Students should engage in after-school activities actively. (2)She has an engagement with her doctor this afternoon. 真题链接：（重庆大学版高中选择性必修第二册同步练习） We encourage all students to in volunteer work to help the community. A.engage B.refuse C.avoid(答案：A) 6.sense/sens/n.W.感觉：意识到&sensation/sen'seIn/n.感觉；轰动 词义辨析： sense作名词：指“感官、感觉”，如a sense of smell;也指“判断力”，如common sense。 feeling:侧重“情感、情绪”，如a feeling of happiness。 sense作动词：意为“意识到”，如I sense danger. realize:强调“认识到、理解”，如realize the importance。 sensation:指“身体的感觉”或“轰动一时的事件/人物”，如a painful sensation。 同义替换： sense (n.)->feeling,perception:sense (v.)-realize,perceive;sensation->feeling,stir 例句： (1)He has a good sense of direction. (2)The new movie caused a sensation in the city. 真题链接：（重庆大学版高中选择性必修第二册单元测试） She that someone was following her,so she quickened her pace. A.sensed B.forgot C.imagined (答案：A) 7.faith/ferd/n.信仰；信念&faithful/feθfl/adj.忠诚的：忠实的&faithfulness/'fereflnas/n.忠 诚：忠实 3 选择性必修第二册重庆大学版 【词义辨析精讲】 Challenge Yourself A 词义辨析： faith:名词，指“宗教信仰”或“对人/事物的信任”，如have faith in sb. belief:普通用词，指“相信、信念”，如a belief in God。 faithful:形容词，指“忠诚的、忠实的”，搭配be faithful to,如a faithful friend。 loyal:侧重“对国家、组织等的忠诚”，如loyal to the country。 faithfulness:名词，对应faithful,指“忠诚的品质”。 同义替换： faith-belief,trust;faithful-loyal,devoted;faithfulness-loyalty,devotion 例句： (1)People of different faiths live in harmony here. (2)The dog remained faithful to its owner until the end. 真题链接：（重庆大学版高中选择性必修第二册同步练习） will always stand by you when you are in trouble A.faithful B.cruel C.selfish(答案：A) 8. unconditional/,nkan'dnl/adj.无条件的 词义辨析： unconditional:强调“无任何条件的”，如unconditional love(无条件的爱)。 absolute:指“绝对的、完全的”，如absolute silence(绝对安静)，不一定强调“无条件”。 同义替换： unlimited,unreserved 例句： Parents'love for their children is often unconditional 真题链接：（重庆大学版高中选择性必修第二册单元测试） The company offers support to new employees,including training and accommodation. A.conditional B.unconditional C.limited(答案：B) 综合演练 综合练习 一、 单项选择 1.The experiment requires measurements to ensure the result is reliable. A.vague B.precise C.casual 4 选择性必修第二册重庆大学版 【词义辨析精讲】 Challenge Yourself A 2.-When will the meeting start? at 9:00 a.m.sharp. A.Possibly B.Precisely C.Gradually 3.After months of hard work,they finally the project on time. A.completed B.started C.abandoned 4.Please submit all reports to the office by friday. A.completed B.uncompleted C.interesting 5.Students are encouraged to in group discussions to share ideas. A.engage B.refuse C.avoid 6.She danger and quickly ran out of the building. A.sensed B.forgot C.imagined 7.A friend will always support you through difficult times. A.faithful B.cruel C.selfish 8.The company provides support to employees,including free training. A.conditional B.unconditional C.limited 二、根据句意及首字母提示填空 1.The scientist gave a p description of the chemical reaction. 2.The train arrived p at 8:30 a.m.as scheduled. 3.She needs a c set of tools for the experiment. 5 选择性必修第二册重庆大学版 【词义辨析精讲】 Challenge Yourself A 4.A11u tasks must be finished by the end of the week. 5.We should e in more outdoor activities to stay healthy. 6.He has a goods of direction and never gets lost. 三、用所给单词的适当形式填空 1.The (complete)project was praised by the manager. 2. (precise)speaking,the answer should be 10.5,not 10 3.She is a (faith)friend who always keeps her promises. 4.Parents'love for children is often (unconditional) 5.We need to (sense)the problem before it becomes serious. 四、完成句子（每空一词） 1.他精确地测量了这个房间的尺寸。 He measured the room's size 2.团队花了三个月完成这项工作。 The team the work in three months 3.我们应该积极参与社区服务。 We should actively community service. 4.她意识到自己犯了一个错误。 She that she had made a mistake 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。 Scientists often need(1)(precise/exact)data to support their research.Last month,a team (2) (completed/started)a study on climate change.They had to(3)(engage/participate)in fieldwork for six weeks,collecting samples and recording observations.During the process,one researcher (4) (sensed/imagined)a potential error in the data and immediately checked it again.Thanks to their (5)(faithful/loyal)to accuracy,the study results were finally pub- lished.The team hopes their work will help people understand the importance of(6)(uncon- ditional/absolute)environmental protection. 6 选择性必修第二册重庆大学版 【词义辨析精讲】 Challenge Yourself A 参考答案 I单项选择 1.B2B3.A4.A5.A6.A7.A8B Ⅱ根据句意及首字母提示填空 1.precise 2.precisely 3.complete 4.uncompleted 5.engage 6.sense ⅡI.用所给单词的适当形式填空 1.completed 2.Precisely 3.faithful 4.unconditional 5.sense V.完成句子 1.precisely 2.completed 3.engage;in 4.sensed V.语篇填空 1.precise 2.completed 3.engage 4.sensed 5.faithful 6.unconditional 7