Unit 8 Discoveries-2025-2026学年九年级全一册英语词汇变形及词缀精讲（北师大版）

9年级全一册北师大版 【寒假专版】 词汇变形及词缀精讲 寒假专版 【Unit8】Discoveries 词汇变形及词缀精讲 全部单元单词 discovery/d'skAvari/n.发现；be able to /bi'erbl tu:/短语能够：者：调查者 发觉：被发现的事物 可以 fuly/'fli/adv.完全地；充分 century/'sentfari/n.世纪：百年effect/fekt/n.效果：作用：影地；彻底地 correctly /k3 rektli/adv.正确地；响 patient'/peht/adj.有耐心的n. 恰当地 honor/'pnr)/n.荣誉；光荣：病人 characteristic /kaerakta'ristik/n. 尊敬v.尊敬；给…以荣誉 patience/'pems/n.耐心；忍耐 特征：特点：特性adj.特有的；present/preznt/adj.现在的；出力；毅力 典型的 席的prn'zent/v.赠送：呈现n.overweight/,aUv3'wet/adj.超 a great deal/grert di:l/短语大礼物：现在 重的：过重的 量：许多 researcher /rI's3t()/n.研究 词汇变形及词缀精讲 1.discovery/d'skAvari/n.发现；发觉：被发现的事物 动词形式：discover 构词解析：前缀dis-:表“相反、分离”；cover意为“覆盖”，discover即“揭开覆盖物→发现”；后 缀y加在动词后构成名词。 同类词：invention(发明)←-invent（发明) 例句：The discovery of electricity changed the world greatly. 真题链接（北师大版九年级教材例句）：Scientists have made many important discoveries in this field. 2.correctly/k'rektli/adv.正确地：恰当地 形容词形式：correct 动词形式：correct(纠正) 构词解析：前缀cor-(=com-):表“共同、完全”；Iect意为“直的”，correct即“使变直→纠正， 正确的”；后缀y加在形容词后构成副词。 例句：You should answer the question correctly 真题链接（北师大版九年级同步练习)：Please spell the word(correct).(答案：correctly) 3.characteristic/kaerakta'rIstIk/n.特征：特点：特性adj.特有的：典型的 名词形式（指“性格”）：character 9年级全一册北师大版 【寒假专版】 词汇变形及词缀精讲 构词解析：后缀-istic:加在名词后构成形容词，表“具有…特性的”；characteristic由character (性格)+-istic构成，可作形容词或名词“特征”。 例句：One characteristic of the computer is its high speed. 真题链接（北师大版九年级教材例句)：What are the characteristics of a successful scientist? 4.effect'fekt/n.效果；作用：影响 动词形式：affect(影响) 构词解析：前缀ef(=ex-):表“出、向外”；fect意为“做”，effect即“做出来的结果→效果”； 注意区分effect(n.)和affect(v.)。 例句：The medicine has a good effect on his illness. 真题链接（北师大版九年级同步练习）：The storm had a bad (affect)on the crops.(答案：effect) 5.honor/Dnar)/n.荣誉；光荣；尊敬V.尊敬；给…以荣誉 形容词形式：honorable(光荣的：可敬的) 构词解析：后缀-able:加在动词后构成形容词，表“可…的：值得…的”；honor+-able→ honorable(值得尊敬的) 例句：It's an honor to meet you.. 真题链接（北师大版九年级教材例句)：We should honor our parents and teachers. 6.present/'preznt/adj.现在的；出席的pr'zent/v.赠送；呈现n.礼物；现在 名词形式(“礼物”同义词)：gt 构词解析：前缀pre-:表“前、预先”；sent意为“送”，present作动词时即“向前送→赠送”；作 形容词“出席的”源于“出现在面前”。 例句：All the students are present today.(adj.出席的) He will present a prize to the winner.(V.赠送) 真题链接（北师大版九年级同步练习）：Please_(present)your ID card when you enter the library. (答案：present) 7.researcher /rI's3t∫a(r)/n.研究者；调查者 动词形式：research 构词解析：后缀-er:加在动词后表“从事…的人”；research(研究)+-er→researcher(研究者)。 同类词：teacher(教师)←-teach(教)、worker(工人)←-work(工作) 例句：The researcher spent years studying the problem. 真题链接（北师大版九年级教材例句）：Many researchers are working on new ways to cure diseases. 8.fuly/'fli/adv.完全地：充分地；彻底地 形容词形式：full 构词解析：后缀-y:加在形容词后构成词；fll(满的)+-y→fuly(完全地)。 例句：You should fully understand the problem before solving it. 真题链接（北师大版九年级同步练习)：He was._(fl)prepared for the exam.(答案：flly) 9.patient'perfnt/adj.有耐心的n.病人 9年级全一册北师大版 【寒假专版】 词汇变形及词缀精讲 名词形式：patience(耐心) 构词解析：后缀-ent:加在名词后构成形容词：patient作形容词“有耐心的”，其名词形式为patience (去-ent加-ience)。 固定搭配：be patient with(对…有耐心) 例句：The doctor is very patient with his patients. 真题链接（北师大版九年级同步练习）：You need to have_ _(patient)when teaching young children. (答案：patience） l0.overweight/.oova'weit//adj.超重的：过重的 反义词：underweight(体重不足的) 构词解析：前缀over-:表“超过、过度”；weight(重量)→overweight(超过重量的→超重的)： 对应前缀under-表“不足”。 例句：Eating too much junk food may make you overweight 真题链接（北师大版九年级同步练习）：It's important to exercise regularly to avoidbeing_(overweight) (答案：overweight) 综合训练 一、 根据句意及汉语提示完成单词 1.The new drug has a good (效果)on treating headaches.. 2.We all take (荣誉)in our school's achievements. 3.The main (特征)of this animal is its long neck. 4.His (发现)made a big difference to science. 5.The (研究者)are working hard to find a solution. 二、用所给单词的适当形式填空 1.You must answer the question(correct)to get full marks. 2.The movie had a great (affect)on her. 3.She speaks English(fluent),so she can communicate with foreigners easily. 4.It's(honor)to be invited to your birthday party. 5.The teacher asked us to (present)our projects next Monday 三、完成句子（每空一词） 3 9年级全一册北师大版 【寒假专版】 词汇变形及词缀精讲 1.这项政策对环境有积极的影响。 The policy has a positive the environment. 2.他因为超重，医生建议他多锻炼。 The doctor advised him to exercise more because he is 3.耐心是成功的关键之一。 is one of the keys to success. 4.科学家们在这个领域取得了许多重要的发现。 Scientists have made many important in this field. 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。 A (research)once did an experiment to study the (characteristic)of successful people He found that one important factor is being(patient).Successful people usually wait calmly for results and never give up easily. Another factor is the ability to (discover)problems and solve them.They often think (full)before taking action,which helps them avoid mistakes.For example,a scientist might spend years testing a new idea to ensure its (effect). In daily life,we should also learn to (honor)others'efforts and stay curious.Remember,small steps can lead to great (achieve). 参考答案 I.根据句意及汉语提示完成单词 1.effect 2.honor 3.characteristic 4.discovery 5.researchers Ⅱ用所给单词的适当形式填空 1.correctly 2.effect 3.fluently 4.honorable 5.present I.完成句子 1.effect on 2.overweight 3.Patience 4.discoveries V.语篇填空 1.researcher 2.characteristics 3.patient 4.discover 5.fully 6.effect 7.honor 8.achievements 4