Unit 5 Memories-2025-2026学年八年级下册英语词汇变形及词缀精讲（北师大版）

8年级下册北师大版 【词汇精讲】 Unit 5 Memories 词汇精讲 【Unit5】Memories 词汇变形及词缀精讲 全部单元单词 influence/'influens/n.影响：影luckily/'IAkili/adv.幸运地；幸器制造 响力：势力V影响：感化 好 central/'sentral/adj.中心的；中 mention/'menn/v.提到；说起；mary/meri/v.结婚；嫁；娶央的；核心的 提及n.提及：说起 使联姻 come round /kAm raund/短语拜 housands of/'auzndz Dv/短语army/'ami/n.军队；陆军；大访：探访：苏醒；改变主意 成千上万的：许许多多的 批 unforgettable /Anfa'getabl/adj. happiness/hapinas/n.幸福：愉enemy/'enami/n.敌人：仇人：难忘的：令人难忘的 快；快乐 敌军 run into个n'ntu:/短语偶遇； good looking/.gd'lk/adj.machine/m3Ji:n/n.机器；机械撞上：陷入 好看的：漂亮的 装置；机械般工作的人v.用机 词汇变形及词缀精讲 1.influence/'mnfluans/n.影响：影响力：势力v.影响：感化 形容词形式：influential(有影响力的) 构词解析：前缀in-:表“进入、在…内”：后缀-nce:构成名词：tial:构成形容词。 同类词：confidence(信心)→confident(自信的) 例句：Parents'behavior can influence their children's habits deeply. 真题链接（北师大版八年级下册同步练习)：The Internet has become an (influence)tool in modern communication.(答案：influential) 2.nention/'menn/v.提到；说起；提及n.提及：说起 名词形式：mention(同形) 构词解析：后缀-tion:构成名词，表“动作、状态”。 同类词：invention(发明)←-invent(发明)、education(教育)←-educate(教育) 例句：She mentioned her trip to Paris in her letter. 真题链接（北师大版八年级下册教材例句）：No one mentioned the accident at the meeting. 3.happiness/'hapinas/n.幸福：愉快；快乐 形容词形式：happy 1 8年级下册北师大版 【词汇精讲】 Unit 5 Memories 副词形式：happily 构词解析：后缀-ness:加在形容词后，构成抽象名词，表“性质、状态”。 同类词：sadness(悲伤)←-sad(悲伤的)、kindness(善良)←-kind(善良的)》 例句：The little girli's smile brought happiness to everyone around her. 真题链接（北师大版八年级下册同步练习)：Money can't buy true_(happy).(答案：happiness) 4.luckily/'IAkrli/adv.幸运地；幸好 形容词形式：lucky 名词形式：ck 构词解析：后缀-y:加在形容词后，构成副词；y:构成形容词，表“充满…的”。 例句：Luckily,we arrived at the station on time 真题链接（北师大版八年级下册教材例句）：Luckily,no one was hurt in the fire. 5.marry/'maeri/v.结婚；嫁；娶；使联姻 名词形式：marriage 形容词形式：married（已婚的) 构词解析：后缀-ge:构成名词，表“行为、状态”；ed:构成形容词，表“已…的”。 固定搭配：get married(结婚)、be married to（与…结婚) 例句：They will marry next summer.. 真题链接（北师大版八年级下册同步练习）：Her (marry)to a doctor made her parents very happy. (答案：marriage) 6.central/'sentral/adj.中心的：中央的：核心的 名词形式：center/centre 构词解析：后缀-l:加在名词后，构成形容词，表“…的”。 同类词：national(国家的)←-nation(国家)、natural(自然的)←-nature(自然) 例句：The bank is located in the central part of the city. 真题链接（北师大版八年级下册教材例句）：Beijing is the central city of China. 7.unforgettable/,nfa'getabl/adj.难忘的；令人难忘的 动词形式：forget 形容词形式：forgettable(易被忘记的) 构词解析：前缀un-:表否定，“不、无”；后缀-able:构成形容词，表“可…的”。 同类词：uncomfortable(不舒服的)←-comfortable(舒服的)、unhappy(不开心的)←一happy(开 心的) 例句：The trip to the Great Wall was an unforgettable experience. 真题链接（北师大版八年级下册同步练习）：That was an_(forget)day for all of us.(答案： unforgettable) 8.machine/mJin/n.机器；机械装置；机械般工作的人v.用机器制造 动词形式：machine(同形) 构词解析：后缀-ine:构成名词，表“工具、装置”。 8年级下册北师大版 【词汇精讲】 Unit 5 Memories 例句：This machine can print 100 pages per minute.. 真题链接（北师大版八年级下册教材例句）：The factory uses new machines to improve production.. 9.enemy/'ensmi/n.敌人；仇人：敌军 复数形式：enemies 构词解析：前缀en-:表“使…”；后缀-y:构成名词。 例句：The soldiers fought bravely against their enemies, 真题链接（北师大版八年级下册同步练习）：In the story,the hero finally defeated his_(enemy) (答案：enemies) 10.good looking/.god'lok/adj.好看的：漂亮的 动词短语：look good(看起来好看) 构词解析：复合形容词：由“形容词+现在分词”构成，表“具有…特征的”。 同类词：hard-working(勤奋的)、easy-going(随和的) 例句：The good-looking actor is very popular among young people. 真题链接（北师大版八年级下册同步练习）：She is a(good-look)girl with big eyes.(答案： good-looking) 11.army/'amin.军队；陆军；大批 复数形式：armies 构词解析：后缀y:构成名词，表“集体、总称”。 例句：He joined the army when he was 18. 真题链接（北师大版八年级下册教材例句）：The army marched through the city: 12.run into /rAn'mtu:/短语偶遇；撞上：陷入 同义短语：come across(偶遇)、knock into(撞上) 构词解析：动词短语：由“动词+介词”构成，表“动作结果或状态”。 例句：I ran into my old friend in the supermarket yesterday. 真题链接（北师大版八年级下册同步练习）：While walking,.he (run into)a tree and hurt his head.(答案：ran into) 13.come round/kAm raond/短语拜访；探访；苏醒；改变主意 同义短语：drop by(拜访)、wake up（苏醒) 构词解析：动词短语：由“动词+副词”构成，表“动作方向或结果”。 例句：Can you come round to my house this evening? 真题链接（北师大版八年级下册教材例句）：She fainted but soon came round, 综合训练 根据句意及汉语提示完成单词 3 8年级下册北师大版 【词汇精讲】 Unit 5 Memories 6.The Internet has become an important (工具)in modern life. 7.She felt a deep sense of (when she held her newborn baby. 8.The (marched through the city square with pride. 9.His (婚姻)to Mary lasted for over50 years. 10.The hero finally defeated all his (敌人)and saved the country. 二、用所给单词的适当形式填空 6.The (marry)between the two families brought peace to the region. 7.She is one of the most(influence)writers in contemporary literature. 8. (lucky),we found a shelter before the heavy rain started. 9.The (machine)process has greatly reduced production time. 10.That was an (forget)moment we shared together. 三、完成句子（每空一词) 5.他在超市偶然遇见了他的小学老师。 He his primary school teacher in the supermarket. 6.她的美貌和善良使她深受大家喜爱。 The girl with a kind heart is loved by everyone. 7.父母的行为会深深影响孩子的成长。 Parents'behavior can children's growth deeply. 8.幸运的是，没有人在这场事故中受伤。 _no one was hurt in the accident. 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。 4 8年级下册北师大版 【词汇精讲】 Unit 5 Memories Last summer,I had an (forget)trip to the countryside.On the first day,I (run into)an old friend from childhood.He is now a farmer and lives in a small village.His house is in the】 (center)part of the village,surrounded by green fields. Every morning,he uses a new(machine)to work in the fields. (lucky),the weather was perfect during my stay.We often walked around the village and talked about our childhood.He told me he (marry)his wife ten years ago,and they have two lovely children.His wife is a (good-looking)woman with a warm smile. One day,we visited a local history museum.There,we saw old weapons used by soldiers to fight against (enemy)in the past.The trip taught me the value of simple life and true (happy). I will always remember those days. 参考答案 I.根据句意及汉语提示完成单词 6.machine 7.happiness 8.army 9.marriage 10.enemies Ⅱ.用所给单词的适当形式填空 6.marriage 7.influential 8.Luckily 9.machine 10.unforgettable I.完成句子 5.ran into 6.good-looking 7.influence 8.Luckily V.语篇填空 1.unforgettable 2.ran 3.into 4.central 5.machine 6.Luckily 7.married 8.good-looking 9.enemies 10.happiness 5