Unit 4 Information Technology Topic Talk-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 【寒假专版】E版词汇变形及词缀精讲 寒假专版 Unit 4:Information Technology Topic Talk 词汇变形及词缀精讲 全部单元单词 app/p/n.应用程序 迷的：沉迷的 表个人的)头像，虚拟替身，图 enable /I'nebl/t.使可能，使发be addicted to沉迷 标 生 indeed/m'di:d/adw.确实；当然explore/k'splb/v探究：探讨： convenience /kan'vi:nians/n. download/,dan'laod/v.下载 探险 便，便利 recommendation /.reka-personality /.p3:sa'naelati/n. effect /I'fekt/n.效应；影响 me'derfn/n.建议，提议：推性，性格 impact/'mpaekt/n.影响：作用荐 admit/ad'mt/vi.&t.承认 self-focused adj.以自我为中心super/sup3/ad.极好的，了不alarm/'lam/n.闹钟 的：关注自我的 起的 addicted归'drktnd/adj.对…着*avatar/'evata:/n.(网络上代 词汇变形及词缀精讲 1.enable'nebl/vt.使可能，使发生 词汇变形 形容词形式：able(有能力的)；名词形式：ability(能力) 构词解析 前缀n-:加在形容词/名词前，构成动词，表“使…成为：使…能够”。 同类词：encourage（鼓励)、enlarge(扩大) This new technology enables us to communicate more easily with people around the world. 真题链接（北师大版高中必修2同步练习）：The invention of the Internet has_us to access information quickly.(答案：enabled) 2.convenience/ken'vinians/n.方便，便利 词汇变形 形容词形式：convenient(方便的)：副词形式：conveniently(方便地) 构词解析 前缀con-:表“共同、一起”；后缀-ence:构成名词：-ent:构成形容词；y:构成副词。 例句：Online shopping brings great convenience to our daily life. 1 高中必修2北师大版 【寒假专版】 ，E版词汇变形及词缀精讲 真题链接（北师大版高中必修2教材例句)：It is convenient for students to study online with digital resources. 3.effect/I'fekt/n.效应：影响 词汇变形 动词形式：affect(影响)：形容词形式：effective(有效的) 构词解析 前缀ef.(=ex-):表“出、向外”；后缀ive:构成形容词，表“具有…性质的”。 固定搭配：have an effect on（对…有影响) 例句：The new policy had a positive effect on the local economy. 真题链接（北师大版高中必修2同步练习）：Parents'behavior can greatly their children's growth (答案：affect) 4.impact/mpaekt/n.影响：作用 词汇变形 动词形式：impact(影响，正式用法)：形容词形式：impactful(有影响力的) 构词解析 前缀im-(=-):表“进入、向内”；后缀-fl:构成形容词，表“充满…的”。 例句：Social media has a huge impact on young people'slifestyles.. 真题链接（北师大版高中必修2单元检测）：The environmental changes will the survival of many species..(答案：impact) 5.addicted/'dktd/adj.对…着迷的：沉迷的 词汇变形 动词形式：addict(使沉迷)：名词形式：addiction(沉迷，瘾) 构词解析 前缀ad-:表“朝向、加强”；后缀-ed:构成形容词，表“处于…状态的”；-ion:构成名词。 固定搭配：be addicted to(沉迷于…) 例句：Some teenagers are addicted to playing video games. 真题链接（北师大版高中必修2阅读拓展)：His to online shopping caused financial problems for his family.(答案：addiction) 6.download/,dan'lad/v.下载 词汇变形 反义词：upload(上传) 构词解析 前缀dowm-:表“向下”；load（加载)：p-(向上)+load构成“上传”。 例句：You can download this app from the official website.. 真题链接（北师大版高中必修2同步练习）：Remember to the study materials before the class. (答案：download) 7.recommendation/,rekamen'den/n.建议，提议；推荐 高中必修2北师大版 【寒假专版】 ,E版词汇变形及词缀精讲 词汇变形 动词形式：recommend(推荐，建议) 构词解析 前缀re-:表“再次、反复”；后缀-ation:构成名词，表“动作或过程”。 例句：I followed my teacher's recommendation and chose this book. 真题链接（北师大版高中必修2单元写作）：Can you」 _a good movie for this weekend?(答案： recommend) 8.explore /ik'splb/v.探究；探讨；探险 词汇变形 名词形式：exploration(探索)：形容词形式：exploratory(探索性的) 构词解析 前缀ex-:表“出、向外”；后缀-ation:构成名词；-oy:构成形容词。 Scientists are exploring new ways to solve environmental problems. 真题链接（北师大版高中必修2课文原句)：The team will start their of the ancient forest next month.(答案：exploration) 9.personality/p3sa'naelati/n.个性，性格 词汇变形 形容词形式：personal(个人的)：副词形式：personally(就个人而言) 构词解析 前缀person-（人)：后缀-ality:构成名词，表“性质、状态”。 例句：Her outgoing personality makes her popular among classmates. 真题链接（北师大版高中必修2同步练习）： I prefer to study alone rather than in groups. 案：Personally) l0.admit/ad'mt/vi.&t.承认 词汇变形 名词形式：admission(承认；入场费)：形容词形式：admittable(可承认的) 构词解析 前缀ad-:表“朝向”：后缀-ion:构成名词。 固定搭配：admit doing sth.(承认做过某事) 例句：He finally admitted making a mistake in the project, 真题链接（北师大版高中必修2单元检测)：The_to the museum is free for students.(答案： admission 11.alarm/a'la:m/n.闹钟 词汇变形 动词形式：alam(使惊恐)：形容词形式：alarmed(惊恐的) 构词解析 前缀a-(加强语气)：后缀-ed:构成形容词，表“感到…的”。 例句：The alarm woke me up at6o'clock this morning. 高中必修2北师大版 【寒假专版】E版词汇变形及词缀精讲 真题链接（北师大版高中必修2听力材料)：She was by the sudden noise outside the window. (答案：alarmed) 综合训练 一、根据句意及汉语提示完成单词 1.The new app brings great. (便利)to our daily life. 2.His positive (个性)makes him popular among friends. 3.The teacher's (推荐)helped me choose the right book. 4.We need to take immediate action to reduce the (影响)of climate change. 5.Her (沉迷)to online games has affected her studies. 二、用所给单词的适当形式填空 1.This new technology(enable)us to work more efficiently. 2.Itis (convenience)to shop online at any time. 3.Parents'behavior can (effect)children's growth deeply. 4.She was (alarm)by the sudden sound of thunder. 5.The team will start their (explore)of the mountain next week 三、完成句子（每空一词) 1.互联网的发明使我们能够快速获取信息。 The invention of the Internet us information quickly. 2.他沉迷于手机游戏，经常熬夜。 He is mobile games and often stays up late. 3.社交媒体对年轻人的生活方式有很大影响。 Social media has a great young people's lifestyles. 4.科学家们正在探索治疗这种疾病的新方法。 Scientists are new ways to treat this disease. 四、语篇填空 4 高中必修2北师大版 【寒假专版】E版词汇变形及词缀精讲 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。 With the development oftechnology,smartphones have(great)changed our lives.They. (enable)us to communicate with others easily and access information(convenient).However, some people become(addict)to using smartphones,which has a negative (impact)on their health and study.Last month,our school held a lecture on digital habits.The speaker (recommend)that we should use phones properly.He also mentioned that parents shouldpay attention to their children's phone usage to avoid(addict).In my opinion,we shouldbalance the (convenient)of technology with healthy habits.Only in this way can we make technology (effect)serve our life. 参考答案 I.根据句意及汉语提示完成单词 6.convenience 7.personality 8.recommendation 9.effect 10.addiction Ⅱ.用所给单词的适当形式填空 6.enables 7.convenient 8.affect 9.alarmed 10.exploration I.完成句子 5.enables;to access 6.addicted to 7.impact on 8.exploring V,语篇填空 1.greatly 2.enable 3.conveniently 4.addicted 5.impact 6.recommended 7.addiction 8.convenience 9.effectively 5