Unit 4 Information Technology Lesson1-2025-2026学年高中英语词汇变形及词缀精讲必修第二册（北师大版）

高中必修2北师大版 词汇变形及词缀精讲Unit 4 Information Technology Unit 4： Information Technology Lesson 1 词汇变形及词缀精讲 全部单元单词 image/mdz/n.图像； 形象 的；明智的，合理的 现时 fancy/'fa ensi/ adj.花哨的； 别致creativity / kri：en'tivati/ n. 创造 selection /s'lekfn/n. 供选择的 的 力；独创性 同类物品；选择 trick/trik/vt.欺骗， 诱骗， 哄骗blog /b lng/n. 博客； 网络日志； type/tap/vi.&vt.打； 打字； n. identity /a'dents ti/ n. 身份； 特v.写博客 类型，种类 征 obviously/'pb via sli/ adv. 显而易 concern /k on's：n/n. 担忧， 忧 2D(2-dimensional) adj. 二维的 见地， 明显地 虑；v.与……有关；使担心 variety/v'rati/n.多样化， 变experiment /ik'sperm ant/ vi. & virtual/'va：tfual/ adj. 虚拟的；模 化 vt.做试验，进行实验；n 实验拟的 a variety of 各种各样的 hairstyle /h east an Il/n. .发型， 发 cheat /tfi： t 欺骗；欺诈 sex /seks/n.性别 式 view /vju：/vt.看， 把……视为 sensible/'sensa bl/ adj.朴素实用nowadays /'nau a de iz/ adv.现今， 词汇变形及词缀精讲 1.creativity/，kri：e'tivati/ n.创造力；独创性 词汇变形 形容词形式：creative(有创造力的) 动词形式：create(创造， 创作) 构词解析 后缀-ity：加在形容词后， 构成抽象名词， 表“性质、状态”。 同类词：activity(活动) -active (活跃的) 、possibility(可能性) ←possible(可能的) 例句：Painting helps children develop their creativity and imagination. 真题链接(北师大版高中必修2同步练习) ： Her (create) ideas made the project standout among others. (答案：creative) 2.identity/a'dent ati/n.身份； 特征 词汇变形 形容词形式：identical(完全相同的) ； identify (v.识别， 确认 构词解析 1 高中必修2北师大版 词汇变形及词缀精讲 Unit 4 前缀iden-(=same)表“相同”；后缀-ity:构成名词。 同类词：identity→identify(动词，识别)：identical(adj.相同的) It's important to protect your personal identity online to avoid fraud. 真题链接（北师大版高中必修2单元测试)：The police used fingerprints to一(identity)the suspect. (答案：identify) 3.variety/ve'rarati/n.多样化，变化 词汇变形 形容词形式：various(各种各样的) 固定搭配：a variety of=various(各种各样的) 构词解析 后缀-ety:构成名词，表“性质、状态”；形容词形式为various(-ous后缀)。 同类词：variety→various;anxiety(焦虑)→anxious(焦虑的) The store offers a variety of fruits and vegetables from different regions 真题链接（北师大版高中必修2同步练习)：There are一(variety)ways to solve this math problem. (答案：various) 4.selection/s'lekn/n.供选择的同类物品：选择 词汇变形 动词形式：select(选择，挑选) 构词解析 后缀tion:加在动词后构成名词，表“动作或结果”；动词为select。 同类词：collection(收集)←-collect(收集)：education(教育)←-educate(教育) 例句：The selection of books in this library covers various subjects. 真题链接（北师大版高中必修2单元测试）：Please一(selection)three books from the list for your report.(答案：select) 5.obvious/'Dbvi3s/adj.明显的 词汇变形 副词形式：obviously(显而易见地) 名词形式：obviousness(明显，较少用) 构词解析 前缀ob-(-toward)表“朝向”；后缀-ous:构成形容词：y构成副词。 同类词：obvious→obviously;dangerous→dangerously It's obvious that she is interested in the topic from her questions. 真题链接（北师大版高中必修2同步练习）：一(obvious)),he didn't prepare for the exam and failed, (答案：Obviously) 6.virtual/v3tul/adj.虚拟的：模拟的 词汇变形 名词形式：virtuality(虚拟性，较少用) 构词解析 2 高中必修2北师大版 词汇变形及词缀精讲 Unit 4 前缀vit-(=strong/effective)表“有效力的”；后缀-al:构成形容词。 同类词：actual(实际的)→actually（副词)：digital(数字的) Many students take virtual classes when they can't attend school in person. 真题链接（北师大版高中必修2阅读拓展）：With the development of technology,一(virtual)reality games are becoming more popular.（答案：virtual) 7.sensible/'sensabl/adj.朴素实用的；明智的 词汇变形 名词形式：sse（感觉；道理)；副词形式：sensibly(明智地) 构词解析 词根sens(=feel)表“感觉”；后缀-ible:构成形容词，表“可…的；具有…性质的”。 同类词：sensible→sense(名词)：responsible(负责的)→responsibility(责任) 例句：It's sensible to save money for unexpected expenses. 真题链接（北师大版高中必修2同步练习)：You should act一(sensible)and think before making a decision.(答案：sensibly) 8.experiment/ik'sperimant/n.实验：vi.&t.做试验 词汇变形 名词形式：experiment(实验)：形容词形式：experimental(实验性的) 构词解析 前缀ex-(=out)表“向外”；词根peri(ty)表“尝试”；后缀-ment:构成名词。 同类词：experiment一experimental(实验性的)；development(发展)←-develop The scientists will experiment with new materials to improve the product. 真题链接（北师大版高中必修2单元测试）：The一(experiment)results showed that the hypothesis was correct..(答案：experimental) 9.cheat/tfi:t/v.欺骗：欺诈 词汇变形 名词形式：cheat(骗子：欺骗行为)：形容词形式：cheating（欺骗的，作弊的) 构词解析 无明显前后缀，动词和名词同形；现在分词作形容词：cheating(作弊的)。 例句：Cheating in exams will result in severe punishment. 真题链接（北师大版高中必修2同步练习）：The teacher caught him_(cheat)during the test.(答案： cheating） 10.view /vju:/t.看，把…视为：n.观点：风景 词汇变形 名词形式：view(观点；风景)：形容词形式：viewable(可见的，较少用) 固定搭配：View.as.(把…视为…) 构词解析 无明显前后缀，动词和名词同形；可构成派生词如review（复习，re-前缀表“再次”)。 例句：Many people view education as the key to success. 3 高中必修2北师大版 词汇变形及词缀精讲Unit4 真题链接（北师大版高中必修2单元测试)：We should_(view)the problem from different angles. (答案：view) 11.concern/kan's3n/n.担忧：V.与…有关 词汇变形 形容词形式：concerned(担心的；相关的)：preoccupied(全神贯注的，派生) 构词解析 前缀con-(=together)表“共同”；词根cem(=separate)表“区分”；后缀-ed构成形容词。 固定搭配：be concerned about(担心…)：as far as.be concerned(就…而言) Parents are concerned about their children's safety when they go out alone. 真题链接（北师大版高中必修2同步练习）：一(concern)the environment,.we should reduce plastic use.(答案：Concerning) l2.ype /tarp/n.类型；v.打字 词汇变形 名词形式：type(类型)：形容词形式：typical(典型的) 构词解析 后缀-ical:构成形容词，表“具有…性质的”；typical(典型的)←一type(类型)。 同类词：type→typical;music一musical(音乐的) 例句：This type of smartphone is popular among young people. 真题链接（北师大版高中必修2单元测试）：Itis一(ype)of him to arrive late for meetings..(答案： typical) 综合训练 一、 根据句意及汉语提示完成单词 l.The artist's works show great_(创造力)and imagination.. 2.We need to check your personal(before you enter the building. 3.The hotel offers a wide(of services for guests. 4.There is a good一（选择）of desserts on the menu today.. 5.The(reality game allows players to experience different worlds. 6.Her一（实验性的）approach to teaching received positive feedback, 二、用所给单词的适当形式填空 1.This problem requires a_(create)solution rather than a traditional one. 高中必修2北师大版 词汇变形及词缀精讲Unit4 2.It's(obvious)that he has made great progress in his studies. 3.You should choose_(sensible)when making important decisions. 4.The company will_(selection)new employees through an interview. 5.There are_(variety)reasons why students choose online courses. 6.She_(view)the new policy as a way to improve working conditions. 7.(concern)environmental protection,we should start with small actions. 三、完成句子（每空一词） 1.他的创意想法使这个项目脱颖而出。 Hisideas made the project stand out. 2.警方使用指纹来识别嫌疑人。 The police used fingerprints to-the suspect 3.这家商店提供各种各样的水果和蔬菜。 The store offers_fruits and vegetables. 4.作弊会导致严重的后果。 -in exams will lead to serious consequences. 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。 In today's digital world,many people enjoy(virtual)activities like online shopping and gaming. A good-(select)of products online provides-(variety)choices for consumers.However,it's im- portant to protect your personal(identify)to avoid fraud.Some people even-(experiment)with new technologies,but they should act_(sensible)._(obvious),the key is to balance innovation with safety.Teachers often warn students that(cheat)in exams is unacceptable,as it goes against the spirit of fair play. 参考答案 I.根据句意及汉语提示完成单词 1.creativity 2.identity 3.variety 4.selection 5.virtual 6.experimental 高中必修2北师大版 词汇变形及词缀精讲Unit4 IⅡ.用所给单词的适当形式填空 1.creative 2.obvious 3.sensibly 4.select 5.various 6.views 7.Concerning I.完成句子 1.creative 2.identify 3.a variety of 4.Cheating V.语篇填空 1.virtual 2.selection 3.various 4.identity 5.experiment 6.sensibly 7.Obviously 8.cheating 6