Unit 4 Space-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 【Unit4】Space 词汇变形及词缀精讲 全部单元单词 international /mta'naefnal/adj.rise /raIz/v.(rose,risen);uncomfortable/An'kAmftabl/adj. 国际的：国际间的 升起：增加：起身.上升：上不舒服的：不安的：不自在的 nind /mamd/n.头脑：大脑：心涨；兴起 unlucky/n'IAki/adj..不幸的： 思：想法v.介意：在乎；注意achievement'ti:vmnt/n.成倒霉的：不吉利的 unnamed/,n'nemd/adj.未命就：成绩；功绩 realize/'ri:larz/v.意识到：实 名的：无名的：不知名的 unknown/,△n'nam/adj.未知现：认识到 action/'ek/n.行动：行为；活 的；不知名的：陌生的n.未知shyly /'farli/adv.害羞地：腼腆地 动：动作 的事物：未知数 词汇变形及词缀精讲 1.international/,nte'nae [nal//adj.国际的；国际间的 名词形式：internation(国际，较少用)：常用名词形式为international(国际组织/会议等，如n international) 构词解析：前缀inter--:表“在…之间：相互”；后缀-national:由nation(国家)+-al(形容词后 缀)构成，合为“国家之间的”。 同类词：interpersonal(人际的)、internet(互联网) The Olympic Games is an international event that attracts athletes from all over the world. 真题链接（北师大版九年级同步练习）：English is an__(nation)language used in many countries.. (答案：international) 2.unnamed/,n'nemd/adj.未命名的；无名的：不知名的 反义词：named(命名的)：动词形式：name(命名：取名) 构词解析：前缀un-:表“否定：相反”，加在过去分词named前构成反义词，意为“未被命名的”。 同类词：unknown(未知的)、unfinished(未完成的) The author of this story remains unnamed,but his writing style is very unique. 真题链接（北师大版九年级教材例句)：There is an unnamed mountain in the distance,covered with green trees. 3.unknown/,n'nUn/adj.未知的：不知名的；陌生的n.未知的事物：未知数 1 9年级全一册北师大版 【寒假专版】 词汇变形及词缀精讲 反义词：known(已知的)：动词形式：kow(知道：了解) 构词解析：前缀un-:表“否定”，加在形容词k1owm前构成反义词，意为“未知的”。 固定搭配：the unknown（未知的事物) The journey into space is full of the unknown,but scientists are trying to explore it. 真题链接（北师大版九年级同步练习）：Most of the ancient tombs in this area are still (know)to us.(答案：unknown) 4.uncomfortable/n'kAmftabl/adj.不舒服的；不安的；不自在的 反义词：comfortable(舒服的)：副词形式：uncomfortably（不舒服地) 构词解析：前缀un-:表“否定”，加在形容词comfortable前构成反义词；后缀-able:表“能… 的”，-un+comfortable意为“不能让人舒服的”。 例句：Sitting on this hard chair for hours made me feel uncomfortable. 真题链接（北师大版九年级同步练习）：She felt(comfortable)when she realized everyone was looking at her..(答案：uncomfortable) 5.unlucky/n'lki/adj.不幸的；倒霉的；不吉利的 反义词：lucky(幸运的)：名词形式：unluck(不幸，较少用)：副词形式：unluckily(不幸地) 构词解析：前缀un-:表“否定”，加在形容词lucky前构成反义词；后缀-y:加在名词luck后构成 形容词，un+ucky意为“没有运气的”。 例句：He was unlucky to miss the last bus and had to walk home. 真题链接（北师大版九年级同步练习）：(uck),it rained heavily on the day of the picnic,.sowe had to cancel it..(答案：Unluckily) 6.realize/'ri:elarz/v.意识到；实现；认识到 名词形式：realization(实现；认识)：形容词形式：real(真实的) 构词解析：前缀e-:表“再；加强”：词根alize(=-ize,动词后缀，表“使…”)，合为“使变得 真实；使意识到”。 例句：She didn't realize her mistake until her teacher pointed it out 真题链接（北师大版九年级教材例句）：We should work hard to realize our dreams. 7.shyly∫ali/adv.害羞地；腼腆地 形容词形式：shy(害羞的)；名词形式：shyness(害羞：腼腆) 构词解析：后缀-y:加在形容词shy后构成副词，表“…地”；名词形式由shy+后缀-ness(表 “性质、状态”)构成。 同类词：happily(高兴地)←一happy(高兴的)、sadly(悲伤地)←-sad(悲伤的) 例句：The little girl smiled shyly and hid behind her mother. 真题链接（北师大版九年级同步练习）：He answered the teacher's question (shy),with his head dowm.（答案：shyly) 8.achievement/'ti:vmant//n.成就；成绩；功绩 动词形式：achieve(实现；取得) 构词解析：后缀-ment:加在动词achieve后构成名词，表“动作的结果或过程”。 9年级全一册北师大版 【寒假专版】 词汇变形及词缀精讲 同类词：development(发展)←-develop(发展)、agreement(同意)←agree(同意) 例句：Winning the competition was a great achievement for her. 真题链接（北师大版九年级同步练习）：We are proud of our country's great (achieve)in science and technology..(答案：achievements) 9.mind /maind/n.头脑；大脑；心思：想法v.介意：在乎；注意 形容词形式：mindful(留心的：注意的)：反义词：mindless(没头脑的；无意识的) 构词解析：后缀ful:加在名词mind后构成形容词，表“充满…的”，mindful即“留心的”；less 表“无…的”，构成反义形容词。 固定搭配：change one'smind（改变主意)、never mind(没关系) 例句：Do you mind if I open the window?It's a bit hot here. 真题链接（北师大版九年级教材例句）：He made up his mind to study abroad after finishing high school. 10.action/'knn.行动：行为：活动：动作 动词形式：act(行动：表演)：形容词形式：active(积极的；活跃的) 构词解析：后缀-ion:加在动词act后构成名词，表“动作或状态”；active由act+后缀-ive(表“有 …性质的”)构成。 固定搭配：take action(采取行动) We need to take action to protect the environment before it's too late 真题链接（北师大版九年级同步练习)：Her quick(act)saved the child from danger..(答案： action) 综合训练 一、 根据句意及汉语提示完成单词 1.The company is looking for someone with experience to manage the new project. 2.They discovered an_ island during their voyage across the Pacific. 3.Scientists are working hard to solve the problems in medical research. 4.Wearing tight shoes all day makes her feet feel. 5.It was that he fell off his bike on the way to school this morning 二、用所给单词的适当形式填空 1.She didn't( (realize)how late it was until her phone rang 2.The little boy waved (shy)at the stranger before hiding behind his mother. 3.Winning the Nobel Prize is considered the highest (achieve)in his career. 3 9年级全一册北师大版 【寒假专版】 词汇变形及词缀精讲 4.You should be (mind)of your words when talking to elderly people 5.Taking immediate (act)is important to prevent the situation from getting worse. 6 (luck),the heavy snow delayed their flight for more than three hours 7.He felt (comfortable)when he noticed everyone staring at his new haircut. 三、完成句子（每空一词) 1.互联网使国际交流变得更加容易。 The Internet makes communication easier. 2.他直到看到成绩才意识到自己的错误。 He didn't his mistake until he saw the grades. 3.她害羞地笑了笑，然后低下了头。 She smiled and then低下头 4.我们应该为国家的科技成就感到自豪。 We should be proud of our country's scientific and technological 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。 Last year,I joined an summer camp.At first,I felt because I didn't know anyone.A girl named Lily noticed my and talked to me.She said,"Don't be afraid of the everyone here is friendly."Her words helped me that I needed to be more outgoing. One day,we had a competition.I was to trip and fall,but Lily helped me up.With her encouragement,I finished the race.Although we didn't win,it was a great for me.Later,I wrote a letter to Lily,but I kept the sender's name -I wanted it to be a surprise 参考答案 I.根据句意及汉语提示完成单词 1.international 2.unnamed 3.unknown 4.uncomfortable 5.unlucky Ⅱ用所给单词的适当形式填空 1.realize 2.shyly 3.achievement 4.mindful 5.action 6.Unluckily 7.uncomfort able 4 9年级全一册北师大版 【寒假专版】 词汇变形及词缀精讲 II.完成句子 1.international 2.realize 3.shyly 4.achievements V,语篇填空 1.international 2.uncomfortable 3.shyness 4.unknown 5.realize 6.unlucky 7 achievement 8.unnamed 5