Unit 12 Innovation Topic Talk-2025-2026学年高中英语词汇变形及词缀精讲选择性必修第四册（北师大版）

高中选修4北师大版 【寒假专版】 ,E版词汇变形及词缀精讲 寒假专版 Unit 12:Innovation Topic Talk 词汇变形及词缀精讲 全部单元单词 well-being /'wel bi:)/n.健康；device/d'vas/n.设备；装置 missile/misarl/n.导弹，飞弹 幸福：舒适 penicillin/,penr'sIln/n.青霉素，physicist/'fizisIst/n.物理学家 vitamin/'vitamin/n.维生素 盘尼西林 joint/d3ont/ad.联合的，共同 entertainment/enta'temnmant/n. perceive /p3'siv/vt.察觉，注意的，共有的 娱乐；消遣 到，发觉 tube /tju:b/n.圆管，管子：电视 gifted/gftd/adj.有天赋的：有million/'mjan/num.百万 显像管，阴极射线管 才华的 humble/'hmbl/adj.谦虚的，谦circuit/'s3kt/n.电路，线路； labor-saving/'leba servu/adj.卑的 环形道路 节省劳力的：省力的 outcome/'autkAm/n.结果，后efficiently /Ififntli/adv.有效率 productive /pra'dAktIv//adj.多产果 地，高效能地 的：高效的 nay/'nervi//n.海军 propose /pr3 pauz/vt.提出（某 garbage/'gabd3n.垃圾：废 accuracy/'ekjarasi/n.准确性；观点、方法等) 弃物 精准度：正确，准确 词汇变形及词缀精讲 l.productive/pr3'dAktIv//adj.多产的；高效的 词汇变形 动词形式：produce(生产；制造) 名词形式：product(产品；产物)、prod1 ction（生产；产量) 构词解析 前缀pro-:表“向前、出”；词根duc/dct:表“引导”；后缀-ive:加在动词后构成形容词，表“有 …性质的：能…的”。 同类词：active(积极的)、creative(创造性的) 例句：Regular exercise helps us stay productive throughout the day. 真题链接（北师大版高中选修4同步练习）：The new technology has made the factory more (produce)than before..（答案：productive) 2.efficiently /I'fifntli/adv.有效率地，高效能地 词汇变形 高中选修4北师大版 【寒假专版】 E版词汇变形及词缀精讲 形容词形式：efficient(高效的) 名词形式：efficiency(效率；效能) 构词解析 前缀ef-:表“出、离去”；词根fic:表“做、制作”；后缀-nt:构成形容词；y:构成副词。 同类词：different(不同的)→differently(不同地)、dependent(依赖的)→dependently(依赖地) 例句：She manages her time efficiently and always finishes tasks on time. 真题链接（北师大版高中选修4单元测试）：We need to work more_(efficient)to meet the project deadline.(答案：efficiently) 3.entertainment/,ente'teinmant/n.娱乐；消遣 词汇变形 动词形式：entertain(娱乐；招待) 形容词形式：entertaining(有趣的：娱乐的) 构词解析 前缀enter-:表“进入”；词根tain:表“保持、持有”；后缀-ment:加在动词后构成名词，表“动 作或结果”。 同类词：development(发展)←-develop(发展)、agreement(同意)←-agree(同意) 例句：Watching movies is one of the most popular forms of entertainment, 真题链接（北师大版高中选修4阅读填空）：The park offers various (entertain)activities for children,such as puppet shows and games.(答案：entertainment) 4.propose /pra3paz/t.提出（某观点、方法等） 词汇变形 名词形式：proposal(提议；建议) 形容词形式：proposed(被提议的；计划中的) 构词解析 前缀pro-:表“向前、提出”：词根pose:表“放置、摆放”。 同类词：expose(揭露)、oppose(反对) 例句：He proposed a new plan to solve the environmental problem. 真题链接（北师大版高中选修4语法填空)：The committee discussed the (propose)changes to the school rules.(答案：proposed) 5.accuracy/'ekjr3si/n.准确性；精准度 词汇变形 形容词形式：accurate(准确的；精确的) 副词形式：accurately(准确地) 构词解析 前缀ac-:表“加强”；词根cur:表“关心、注意”；后缀-acy:加在形容词后构成名词，表“性质、 状态”。 同类词：private(私人的)一privacy(隐私)、intimate(亲密的)→intimacy(亲密) 例句：The success of the experiment depends on the accuracy of the data. 真题链接（北师大版高中选修4完形填空)：To ensure the (accurate)of the report,we checked 2 高中选修4北师大版 【寒假专版】 ,E版词汇变形及词缀精讲 all the figures twice..(答案：accuracy) 6.gifted/'gftd/adj.有天赋的：有才华的 词汇变形 名词形式：g(天赋：礼物) 构词解析 后缀-d:加在名词后构成形容词，表“具有…的：有…特征的”。 同类词：talented(有才能的)←talent(才能)、skilled(熟练的)←-skill(技能) 例句：The young pianist is gifted in playing classical music. 真题链接（北师大版高中选修4阅读理解)：Asa(gift)artist,she held her first solo exhibition at the age of 18.(答案：gifted) 7.labor--saving/'leib3seI四adj.节省劳力的；省力的 词汇变形 动词形式：save(节省：拯救) 名词形式：labor(劳动：劳力) 构词解析 前缀labor-:表“劳动”；-saving:为合成形容词后缀，由“动词+ing”构成，表“节省…的”。 同类词：time-saving(省时的)、energy-saving(节能的) Modern household appliances like washing machines are labor-saving. 真题链接（北师大版高中选修4七选五)：The invention of the steam engine led to the development of many (labor-save)machines during the Industrial Revolution.(labor-saving 8.perceive /p3'si:v/t.察觉，注意到，发觉 词汇变形 名词形式：perception(感知；看法) 形容词形式：perceptive(有洞察力的) 构词解析 前缀per-:表“完全、贯穿”；词根ceive:表“拿、取”。 同类词：receive(收到)、conceive(构想) 例句：She perceived a change in his attitude towards her. 真题链接（北师大版高中选修4语法填空）：Our(perceive)of the world is shaped by our experiences and education.(答案：perception) 9.outcome/'atkm/n.结果，后果 词汇变形 动词形式：come out(出现：结果是) 构词解析 前缀out-:表“向外、超出”；词根come:表“来”；后缀-come:构成名词，表“结果”。 同类词：income(收入)←-in(进入)+come(来) 例句：The outcome of the election surprised many people 真题链接（北师大版高中选修4写作）：We need to analyze the possible (outcome)before making 3 高中选修4北师大版 【寒假专版】E版词汇变形及词缀精讲 a final decision.(答案：outcomes) 10.joint/d3omt/adj.联合的，共同的 词汇变形 名词形式：joint(关节；接合处) 动词形式：joim(加入；连接) 构词解析 词根joi:表“连接、结合”；后缀t:构成形容词或名词，表“连接的；连接处”。 同类词：point(点)、appoint(任命)→appointment(约会) 例句：The two companies made a joint effort to develop new technology. 真题链接（北师大版高中选修4阅读理解）：They signed a((join)agreement to share resources and profits.(答案：joint) ll.device/dr'vaIs/n.设备：装置 词汇变形 动词形式：devise(设计：发明) 构词解析 前缀de-:表“加强”；词根vise:表“看、视觉”：后缀-ce:构成名词，表“工具、方法”。 同类词：advise(建议)→advice(建议)、revise(修改)→revision(修改) 例句：This new device can help people with hearing problems, 真题链接（北师大版高中选修4词汇运用)：The engineer spent two years (device)a new type of solar-powered car.(答案：devising) 12.circuit/'s3kt/n.电路，线路：环形道路 词汇变形 动词形式：circle(环绕：盘旋) 形容词形式：circular(圆形的：循环的) 构词解析 前缀cir-:表“环绕”；词根cuit:表“走”（来自拉丁语“currere”)。 同类词：cycle(循环)、circulate(循环；传播) 例句：The electrician is checking the circuit for any faults. 真题链接（北师大版高中选修4科普阅读）：A closed」 (circuit)is necessary for electricity to flow. (答案：circuit) 综合训练 一、根据句意及汉语提示完成单词 6.The new machine has increased the factory's (产量)by50% 7.We need to improve the_ (效率)of our work to finish on time. 4 高中选修4北师大版 【寒假专版】 ，E版词汇变形及词缀精讲 8.Watching TV is a popular form of (娱乐)for many families. 9.The (of the experiment was better than expected. 10.This (设备)can measure temperature accurately. 二、用所给单词的适当形式填空 6.The (propose)plan was approved by the majority of the committee. 7.She is a (gift)musician who started playing the piano at age 5. 8.The (accurate)of the data is crucial for the research 9.We should use energy(efficient)to protect the environment. 10.The two countries made a(join)statement on climate change. 三、完成句子（每空一词) 5.他提出了一个解决这个问题的新方法。 He」 a new method to solve the problem. 6.这项技术使我们能够更高效地工作。 This technology enables us to work more_ 7.为了确保准确性，我们需要仔细检查每一个细节。 To ensure we need to check every detail carefully 8.这台省力的机器节省了我们很多时间和精力。 This machine saves us a lot of time and energy. 四、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。 5 高中选修4北师大版 【寒假专版】 ,E版词汇变形及词缀精讲 Modern technology has changed our lives in many ways.For example. (produce)goods has become more (efficiency)with the help of advanced machines.People now have more time for (entertain)activities like traveling or watching movies. Scientists often (propose)new theories to explain natural phenomena,and their (per- ceive)of the world helps us understand it better.When using new(device),we should pay attention to their(accurate)and safety. In (joint)projects,team membersneed to communicate well to achieve good_ (outcome). (gift)individuals often make great contributions to these projects with their creative ideas. 参考答案 I.根据句意及汉语提示完成单词 6.production 7.efficiency 8.entertainment 9.outcome 10.device L.用所给单词的适当形式填空 6.proposed 7.gifted 8.accuracy 9.efficiently 10.joint I.完成句子 5.proposed 6.efficiently 7.accuracy 8.labor-saving V.语篇填空 1.producing 2.efficient 3.entertainment 4.propose 5.perception 6.devices 7.accuracy 8.joint 9.outcomes 10.Gifted 6