Unit 3 Healthy Lifestyle B部分-2025-2026学年高中英语词汇变形及词缀精讲必修第三册（沪外版）

高中必修第三册沪外版 Unit 3 ealthy Lifestyle B部分 健康生活 Unit 3 Healthy Lifestyle 词汇变形及词缀精讲 全部单元单词 classic/klaesik/adj..典型的：有（程度很高） 明，确认（提供证据确保某事真 代表性的（符合预期特征的） suffer/'sfa/v.受苦，受折磨实) beneficial/,ben'fiV/adj..有利（因疾病、痛苦等受到严重影响）power/pawa/V推动（机器或 的：有帮助的：有用的（能改善germ/d3m/n.细菌：病菌（能车辆）：n.控制力：影响力 状况) 引发感染的微小生物) plaque /plak/n.牙斑；牙菌斑 workout /'w3kat/n.锻炼（为soap/saUp/n.肥皂（用于清洁（牙齿表面形成的、滋生有害细 保持健康的体能训练) 的日化用品) 菌的软物质) depression/d'pre/n.抑郁症sanitiser/'saentisaIz3/n.消毒液symptom/'simptam/n.症状（身 (以持续悲伤、焦虑及生理症状（含化学物质、用于杀灭病菌的体或精神不健康的表现） 为特征的疾病) 液体) gum/gn/n.齿龈；牙床（牙齿 anxiety/e!'zarati/n.焦虑：忧虑alcohol/aelkahpl/n.酒精（存在附着的口腔软组织） (对坏事发生的紧张、担忧) 于酒中，也用于医药、清洁产DDS/,di:di:'es/n.牙科外科博 lower/la3/V.把…放低；使品)：酒 士(Doctor of Dental Surgery的 …降下 option/pn/n.选择物：选择缩写) pressure/preA/n.压力：压强；权；选择的自由 clinic/'klmk/n.门诊治疗部：医 挤压（气体/液体产生的力，或rbab/V.擦：磨：搓（用手或疗中心；（医院的）门诊部 物体间的压迫) 布在表面按压移动) oral/'Tl/adj.用口的；口腔的： improve/Im'pu:v/V.改进：改toothbrush/'tu:θbraf!n.牙刷口服的 善（变得比之前更好） (清洁牙齿的小刷子) overall/.Uvar':l/adj.综合的： reduce /rr'dju:s/v.减少，缩小electric'lektrik/adj..用电的：总的（包含所有相关事物） (尺寸、数量、价格等) 电动的（与电相关的） circulation/,s3kj3'len/n.血液 fatigue/fa'ti:g/n.疲劳：劳累（因manual'maenjual/adj.(工作循环（血液在体内的流动） 工作或劳累导致的极度疲倦) 等)用手的：手工的：体力的 extreme/k'stri:m/adj.极大的confirm /kan'f3m/v.证实，证 词汇变形及词缀精讲 1.beneficial/,benr'f/adj.有利的：有帮助的：有用的（能改善状况） 动词形式：benefit(有益于：受益) 副词形式：beneficially 高中必修第三册沪外版 Unit3 Healthy Lifestyle B部分 构词解析：前缀bene-:表“好、善”；后缀-ficial:由fic(做)+-ial(形容词后缀)构成，表“有 …作用的”。 同类词：benefit(n.益处；v.有益于)、beneficiary(受益人) 例句：Regular exercise is beneficial to our physical and mental health. 真题链接（沪外版高中必修第三册同步练习）：Fresh air and enough sleep are一(benefit))to students' study efficiency..(答案：beneficial) 2.depression/d'prem/n.抑郁症（以持续悲伤、焦虑及生理症状为特征的疾病） 形容词形式：depressed(沮丧的；抑郁的)、depressing(令人沮丧的) 动词形式：depress(使沮丧；使萧条) 构词解析：前缀de-:表“向下”；词根press(压)：后缀-ion:构成名词，表“动作、状态”。 例句：The doctor said that long-term stress can lead to depression. 真题链接（沪外版高中必修第三册教材例句）：She felt depressed after failing the exam and refused to talk to anyone. 3.anxiety/e'zarati/n.焦虑：忧虑（对坏事发生的紧张、担忧) 形容词形式：anxious（焦虑的渴望的) 副词形式：anxiously 构词解析：词根anx(焦虑)：后缀-ity:构成名词，表“性质、状态”；-ous构成形容词：y构成 副词。 例句：Her anxiety about the future made it hard for her to fall asleep. 真题链接（沪外版高中必修第三册同步练习）：The mother waited_(anxiety)for her son's safe return from the trip.（答案：anxiously) 4.improvement/m'pu:vmant/n.改进：改善（由improve变形而来，任务输入未直接给出，作为衍生 名词补充) 动词形式：improve(改进；改善) 形容词形式：improved(改进的：提高的) 构词解析：前缀im-:表“使…更…”（加强意义)；词根prove(证明：变好)：后缀-ment:构 成名词，表“结果、动作”。 There has been a great improvement in his English since he started taking the course. 真题链接（沪外版高中必修第三册同步练习）：We should try our best to一(improvement)our living conditions..(答案：improve) 5.reduction/rI'dkn/n.减少；降低（由reduce变形而来，任务输入未直接给出，作为衍生名词补充） 动词形式：reduce(减少：缩小) 形容词形式：reducible(可减少的：可简化的) 构词解析：前缀e-:表“回、再”：词根duc(引导：拉)：后缀-tion:构成名词，表“动作、过程”。 The reduction in air pollution is due to stricter environmental policies. 真题链接（沪外版高中必修第三册教材例句）：We need to reduce the amount of waste we produce every day. 2 高中必修第三册沪外版 Unit3 Healthy Lifestyle B部分 6.confirmation/konf'mern/n.确认：证实（由confirm变形而来，任务输入未直接给出，作为衍生 名词补充) 动词形式：confirm(证实：确认) 形容词形式：confirmed(确认的：坚定的) 构词解析：前缀con-:表“共同、一起”；词根fim(坚定的；牢固的)；后缀-ation:构成名词，表 “动作、结果”。 I'm still waiting for confirmation of the meeting time from the manager. 真题链接（沪外版高中必修第三册同步练习）：Please一_(confirmation)your reservation by phone two days in advance..(答案：confirm) 7.electric /I'lektrik/adj.用电的：电动的（与电相关的） 名词形式：electricity(电；电流) 副词形式：electrically 构词解析：词根electr(电)；后缀-ic:构成形容词，表“与…相关的”；-ity构成名词；-ally构 成副词。 同类词：electronic(电子的)、electrical(电气的) This electric car can travel up to 300 kilometers on a single charge. 真题链接（沪外版高中必修第三册同步练习）：The invention of一(electric)has changed the world completely.(答案：electricity) 8.manual/'maenjual/adj.(工作等)用手的；手工的；体力的 副词形式：manually 动词形式：man(操作：使用) 构词解析：词根man(手)：后缀-ual:构成形容词，表“与…相关的”；y构成副词。 同类词：manufacture(制造；由manu-+facture构成，意为“用手做”) 例句：Most of the products in this factory are made by manual labor. 真题链接（沪外版高中必修第三册教材例句）：The data needs to be entered manually into the computer system 9.overall/.Uvar'/adj.综合的；总的（包含所有相关事物） 副词形式：overall(总的来说：大体上) 构词解析：前缀ovr-:表“在…之上：全部”；词根（所有的）：整体作为形容词或副词，表 “涵盖全部的”。 例句：The overall cost of the project is much higher than we expected, 真题链接（沪外版高中必修第三册同步练习）：一(overal),the team performed well in the competition despite some minor mistakes.(答案：Overall) 10.sanitiser/'saentisaIz/n.消毒液（含化学物质、用于杀灭病菌的液体) 动词形式：sanitise(消毒：使清洁，英式拼写，美式为sanitize) 形容词形式：sanitary(卫生的；清洁的) 构词解析：词根sanit(健康；卫生)：后缀-ise/-ize:构成动词，表“使…化”；-er构成名词，表 “物”。 3 高中必修第三册沪外版 Unit3 Healthy Lifestyle B部分 例句：You should use sanitiser to clean your hands before eating 真题链接（沪外版高中必修第三册同步练习）：It's important to一(sanitiser)the table surface before placing food on it.(答案：sanitise) 11.alcoholic/,elka'hplik/adj.酒精的：含酒精的：n.酗酒者（由alcohol变形而来，任务输入未直接给 出，作为衍生词补充) 名词形式：alcohol(酒精：酒) 构词解析：词根alcohol(酒精)：后缀-ic:构成形容词或名词，表“与…相关的：人”。 例句：This drink contains a high percentage of alcoholic content. 真题链接（沪外版高中必修第三册教材例句）：Alcohol is harmful to the liver if consumed in large quantities. l2.optional/'Dpnl/adj.可选择的；非强制的（由option变形而来，任务输入未直接给出，作为衍生 形容词补充) 名词形式：option(选择物：选择权) 构词解析：词根opt(选择)：后缀-ion:构成名词；-al:构成形容词，表“…的”。 例句：The course offers optional modules in art and music. 真题链接（沪外版高中必修第三册同步练习）：Taking part in the after-school activity is一(option), but most students choose to join.(答案：optional) l3.circulation/.s3kj3'lern/n.血液循环（血液在体内的流动) 动词形式：circulate(循环；传播) 形容词形式：circulatory(循环的)；circulative（有循环力的) 构词解析：词根circul(圆；环)：后缀-ation::构成名词，表“动作、过程”；-te构成动词。 例句：Regular exercise helps to improve blood circulation. 真题链接（沪外版高中必修第三册教材例句）：The heart plays a key role in circulating blood throughout the body. l4.powerful,/'pawf/adj.强大的：有力的（由power变形而来） 名词形式：power(控制力：影响力) 副词形式：powerfully 构词解析：词根power(力量)：后缀ful:构成形容词，表“充满…的”。 例句：This medicine has a powerful effect on pain relief. 真题链接（沪外版高中必修第三册同步练习）：The engine is一(power)enough to pull heavy loads, (答案：powerful) 综合训练 一、 根据句意及汉语提示完成单词 1.Regular exercise has a()effect on both physical and mental health. 高中必修第三册沪外版 Unit 3 Healthy Lifestyle B部分 2.Long-term stress may lead to serious mental problems like一（抑郁症）. 3.The child's(about the dark kept her awake all night. 4.The new policy has resulted in a significant_()in air pollution. 5.After the treatment,there was a noticeable()in his condition. 6.We need your written _to finalize the booking. 7.The invention of()marked the beginning of a new era. 8._(消毒液is essential for keeping hands clean in public places. 二、用所给单词的适当形式填空 1.Fresh fruits and vegetables are_(benefit)to our health. 2.She felt(depress)after failing the driving test. 3.The mother waited_(anxiety)for her daughter's exam results 4.We should try our best to(improvement)our communication skills 5.Please_(confirmation)your attendance at the meeting by Friday 6.This machine is operated(manual)rather than automatically 7.-(overall),the project was a great success despite some challenges. 8.The heart plays a key role in_(circulation)blood throughout the body. 三、完成句子（每空一词） 1.均衡的饮食有益于身体健康。 A balanced diet_-physical health 2.他的英语口语自从参加课程以来有了很大进步。 There has been a great_his spoken English since he joined the course 3.医生建议我们每天减少糖分摄入。 Doctors advise us to___sugar every day. 4.总的来说，这个新政策得到了大多数人的支持。 _the new policy has been supported by most people. J 高中必修第三册沪外版 Unit 3 Healthy Lifestyle B部分 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。 Maintaining good health requires both physical activity and mental care.Regular exercise is (beneficial)as it improves blood(circulation)and reduces the risk of diseases.However,many people(ignore)mental health,which can lead to issues like(anxiety)or even_(depression). To stay healthy,experts suggest: 1.Limiting_(alcohol)intake,as excessive drinking harms the liver 2.Using(sanitiser)regularly to prevent infections. 3.Making_(improvement)to daily habits,such as getting enough sleep. -(overall),small changes in lifestyle can bring significant health benefits.Remember,it's important to_(confirmation)regular health checks to detect problems early. 参考答案 I.根据句意及汉语提示完成单词 1.beneficial 2.depression 3.anxiety 4.reduction 5.improvement 6.confirmation 7.electricity 8.Sanitiser Ⅱ.用所给单词的适当形式填空 1.beneficial 2.depressed 3.anxiously 4.improve 5.confirm 6.manually 7.Overall 8.circulating IL.完成句子 1.is beneficial to 2.improvement in 3.reduce the intake of 4.Overall speaking V.语篇填空 1.beneficial 2.circulation 3.anxiety 4.depression 5.alcohol 6.sanitiser 7.im- provements 8.Overall 9.confirm 6