Unit 3 Friends and Friendship-Reading Actively-2025-2026学年高中英语词汇变形及词缀精讲必修第二册（重庆大学版）

高中必修第二册重庆大学版 【词汇精讲】 Unit 3 Friends and Friendship 词汇精讲 【Unit3】Friends and Friendship Reading acively 词汇变形及词缀精讲 全部单元单词 friend/frend/n.朋友：友人 有：分配.一份：份额：股份我的：不考虑自己的 friendship/'frendfip/n.友谊：友joy/d3o/n.欢乐；喜悦：乐趣；selflessly/'selflasli/adv.无私地： 情：友爱 乐事 忘我地 loyal/'15131/adj.忠诚的：忠心sorrow/'sDra/n.悲伤：悲痛；devote/d'vat/v.致力于：奉 的：忠贞的 不幸；懊悔 献；投入 loyalty'1ralti/n.忠诚；忠心；sincere/sn'sIar)/adj.真诚的；devotion/d'van/n.奉献；忠 忠贞 诚挚的：真心实意的 诚：热爱 trust/trAst/v.n.信任；信赖；委sincerity/snm'serati/n.真诚：诚care for关心；照顾；喜欢 托：信托 挚；真挚 stand by支持：站在一边： reliable'labl/adi.可靠的：supportive/sa'po:trv/adj.支持袖手旁观 可信赖的：确实的 的：支援的：鼓励的 in trouble处于困境；遇到麻烦 share/ear)/V.分享；分担；共selfless/'selflas/adj.无私的：忘 词汇变形及词缀精讲 1.friend /frend/n.朋友；友人 形容词形式：friendly(友好的) 副词形式：friendly(友好地，注：部分词典将其视为形容词兼副词) 构词解析： 后缀y:加在名词后可构成形容词，表“像…的；有…性质的”。 同类词：lovely(可爱的)、lively(活泼的) 例句：My new neighbor is very friendly and often helps me with my English, 真题链接（重庆大学版高中必修第二册同步练习）：Our class has a(friend)atmosphere and everyone gets along well.(答案：friendly) 2.friendship/'frendfp/n.友谊；友情；友爱 形容词形式：friendly(友好的，间接关联) 构词解析： 高中必修第二册重庆大学版 【词汇精讲】 Unit 3 Friends and Friendship 后缀-ship:加在名词后构成抽象名词，表“关系：状态：技能”。 同类词：relationship(关系)、hardship(艰难) 例句：True friendship can last forever even if friends are far apart. 真题链接（重庆大学版高中必修第二册教材例句)：They built their friendship through shared hobbies and mutual respect. 3.loyal/lpI/adj.忠诚的；忠心的：忠贞的 名词形式：loyalty(忠诚：忠心) 副词形式：loyally(忠诚地) 构词解析： 后缀-l:加在名词后构成形容词，表“具有…性质的”；y是名词后缀，表“性质、状态”：y 构成副词。 例句：The dog remained loyal to its owner until the end, 真题链接（重庆大学版高中必修第二册同步练习)：Hs (loyal)to the team made him a respected captain.(答案：loyalty) 4.rust/trAst/Vn.信任；信赖；委托：信托 形容词形式：trustful(信任他人的)、trustworthy(值得信任的) 构词解析： 后缀ful表“充满…的”；-worthy:表“值得…的”。 例句：It takes time to build trust between two people. 真题链接（重庆大学版高中必修第二册同步练习)：A _(trust)friend will always stand by you when you are in trouble.（答案：trustworthy) 5.reliable/rr'laIb/adj.可靠的：可信赖的；确实的 动词形式：rey(依靠；依赖) 名词形式：reliability（可靠性) 构词解析： 前缀re-:表“再、又”；词根y(绑)：后缀-able:表“可…的”。 例句：She is a reliable person and always keeps her promises. 真题链接（重庆大学版高中必修第二册教材例句）：You can rely on him to finish the task on time because he is very reliable. 6.sincere/sn'sIat)/ad.真诚的；诚挚的：真心实意的 名词形式：sincerity(真诚；诚挚) 副词形式：sincerely（真诚地) 构词解析： 前缀sin-(=sim-,表“相同”)：后缀-ere:构成形容词；-ity是名词后缀：-y构成副词。 例句：Please accept my sincere thanks for your help 真题链接（重庆大学版高中必修第二册同步练习）：He expressed his (sincere)in a letter to his parents.(答案：sincerity) 高中必修第二册重庆大学版 【词汇精讲】 Unit 3 Friends and Friendship 7.selfless/'selflas//adj.无私的；忘我的：不考虑自己的 名词形式：selflessness（无私) 副词形式：selflessly（无私地) 反义词：selfish(自私的) 构词解析： 前缀self.(表“自己”)：后缀less:表“无…的”（反义后缀）：-ness:构成名词。 例句：The doctor selflessly devoted his life to saving patients, 真题链接（重庆大学版高中必修第二册同步练习）：Her(selfless)actionsmoved everyone around her.(答案：selflessness) 8.devote/dr'vat/v.致力于；奉献；投入 名词形式：devotion(奉献：忠诚) 形容词形式：devoted(忠诚的：投入的) 构词解析： 前缀de-(表“加强”)；词根vot(发誓)：后缀-ion:构成名词；-ed:构成形容词。 固定搭配：devote oneself to(致力于…) 例句：She decided to devote her life to education. 真题链接（重庆大学版高中必修第二册同步练习）：His(devote)to scientific research finally led to great achievements.(答案：devotion) 9.supportive/sa'ptrv/adj.支持的；支援的：鼓励的 动词形式：support(支持；支撑) 名词形式：support（支持：支援) 构词解析： 后缀-ive:加在动词后构成形容词，表“具有…性质的”。 例句：My parents are always supportive of my dreams. 真题链接（重庆大学版高中必修第二册教材例句）：Asupportive friend can help you get through difficult times 10.share /fea()/v.分享；分担：共有：分配n.一份：份额：股份 形容词形式：shared(共享的：共同的) 构词解析： 后缀-d:加在动词后，构成形容词，表“已…的：共同的”。 例句：We should share our happiness and sorrow with each other. 真题链接（重庆大学版高中必修第二册同步练习)：They have a(share)interest in music and often go to concerts together.（答案：shared) 高中必修第二册重庆大学版 【词汇精讲】 Unit 3 Friends and Friendship 综合训练 一、 根据句意及汉语提示完成单词 1.True (requires trust and understanding between friends. 2.The company values_ (忠诚)and hard work among its employees. 3.Her in helping others has won her many friends. 4.We should always remember the()of those who fight for our country. 5.The team's success depends on the (可靠性)of each member.. 6.His (in sharing knowledge with others is worth praising. 二、用所给单词的适当形式填空 1.A (friend)smile can make strangers feel welcome in a new place. 2.You can always rely on her because she is one of the most (trust)people I know. 3.The teacher was impressed by the student's(sincere)when he apologized 4.He (devote)most of his time to researching environmental protection last year. 5.It's important to be(support)when your friends are going through a hard time. 6.The (selfless)of the volunteers during the disaster moved the whole nation. 7.She has a(rely)partner who helps her with all the difficult tasks. 三、完成句子（每空一词） 1.好的友谊建立在信任和尊重的基础上。 A good is built on and respect. 2.他对家庭的奉献让每个人都很感动。 His to his family moved everyone deeply. 3.我们应该学习那位医生无私奉献的精神。 We should learn from the doctor'sspirit of 4.她总是真诚地关心身边的人。 She always cares about people around her 4 高中必修第二册重庆大学版 【词汇精讲】 Unit 3 Friends and Friendship 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。 Friendship is one of the most precious things in life.To build a strong friendship,both friends need tobe (friend)and honest with each other.Trust is the foundation-without it,even the closest relationship may break down.A(rely)friend will always stand by you,especially during difficult times. Loyalty is also important.True friends remain (loyal)through thick and thin.They share joys and sorrows,and their(sincere)never fades.Some friends even devote themselves (selfless)to helping each other achieve goals. In short,a meaningful friendship requires (devote),understanding,and mutual respect.As the saying goes,"A friend in need is a friend indeed." 参考答案 I根据句意及汉语提示完成单词 1.friendship 2.loyalty 3.sincerity 4.devotion 5.reliability 6.selflessness Ⅱ.用所给单词的适当形式填空 1.friendly 2.trustworthy 3.sincerity 4.devoted 5.supportive 6.selflessness 7 reliable II.完成句子 1.friendship;trust 2.devotion 3.selfless,devotion 4.sincerely V.语篇填空 1.friendly 2.reliable 3.loyal 4.sincerity 5.selflessly 6.devotion 5