UNIT 4 Breaking Boundaries单元知识回扣（课件PPT）-【精讲精练】2025-2026学年高中英语选择性必修第二册（外研版）

该高中英语单元复习课件围绕“Breaking boundaries”主题，系统梳理核心单词、拓展词汇、重点短语及句型，通过例句解析、词性转换及语境应用构建知识网络，强化词汇、短语与句型的内在逻辑关联。 其亮点在于“基础巩固-拓展延伸”的分层复习策略，如核心单词“boundaries”结合科学探索例句，拓展词汇“assist”通过“v.-n.-n.”词性链深化理解，培养学生语言能力与学习能力。这种设计助力学生夯实基础，教师可精准开展针对性复习教学。

UNIT 4　Breaking boundaries 主题语境——人与社会之社会进步与人类文明 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 4　Breaking boundaries 单元知识回扣 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 4　Breaking boundaries boundaries Statistics tackle twins civil 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 4　Breaking boundaries mounted clinic altogether vital ward 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 4　Breaking boundaries joint disinfect liberty mankind cast 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 4　Breaking boundaries assistance assistant special specialize infect infection devote devoted really reality realize 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 4　Breaking boundaries minor harmony harmoniously reward rewarding divide noble influence communism 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 4　Breaking boundaries take any chances put...at risk give up on against all odds step into sb's shoes in memory of at a great cost suffer for 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 4　Breaking boundaries look to die for bring forth dedicate to be engaged in in a larger sense in vain 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 4　Breaking boundaries It is ten years since I graduated from this school It's up to you to decide 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 4　Breaking boundaries 谢谢观看 返回目录 英语·选择性必修 第二册(配WY版) 1 UNIT 4　Breaking boundaries Ⅰ.核心单词 1．Scientists continue to push back the __________(边界) of human knowledge. 2．__________(数据) show that the average number of births per woman has fallen from 4.9 in the early 1960s to 2.5 nowadays. 3．A nap can leave you feeling refreshed and more ready to ______(处理) the task at hand. 4. The _____(双胞胎) were filled with excitement as they thought of the surprise they were planning for Mother's Day. 5．The moving love story unfolds against a background of _____ (国内的) war. 6．As he _______ (登上) the stage，the entire audience broke into loud applause. 7．The ______ (诊所) is open to outsiders as well as employees and their families. 8．We were not __________(完全地) sure that the comet would miss the Earth. 9．It is _____ (重要的)that we should remember the new words when learning English. 10．The patient is not allowed to go out of the ____ (病房)because he is too weak. 11．It requires the _____ (联合的) efforts of the whole society to build a harmonious society. 12．Nurses need to _________ (为……消毒)the medical instruments before the operation. 13．The right to vote should be a _______ (自由) enjoyed by all citizens，regardless of their gender，race，religion，or social status. 14．These scientists have made great advances in satellite technology，which I suppose is of great significance to all _______ (人类). 15．He has ____ (选派) her as an ambitious lawyer in his latest movie，which will be released at the end of the year. Ⅱ.拓展单词 1．assist v.协助，帮助→ __________ n.帮助，援助→ _________ n.助手 2．_______ adj.特殊的；专门的→specialist n.专家→__________ vi.专攻；专门从事；专注于 3．______ vt.传染；感染→infectious adj.传染性的→_________ n.传染；传染病；感染 4．______ v.奉献；致力于→devotion n.奉献→_______ adj.忠诚的；挚爱的 5．real adj.真正的→______ adv.真正地→_______ n.现实→_______ vt.实现→realistic adj.(目标、希望)能够实现的 6．_____ adj.小的→minority n.少数派，少数 7．_______ n.和睦，和谐→harmonious adj.和睦的，融洽的→____________ adv.和睦地，和谐地 8．______ n.&v.奖赏；酬劳；获得；赢得→_________ adj.值得做的，有意义的 9．______ vt.分割；分配→ division n.分歧；分裂 10．_____ adj.崇高的，高尚的→nobly adv.高尚地，崇高地 11．_________ n.& v.影响→influential adj.有影响力的 12．communist adj.共产主义的 n.共产主义者→_________ n.共产主义 Ⅲ.重点短语 1．________________ 心存侥幸；冒险 2．_____________把……置于危险之中 3．__________对……绝望；对……不抱希望 4．________________尽管凶多吉少，尽管极其困难 5．____________________接替某人(的职责或工作) 6．____________纪念；追念 7．_______________付出巨大代价 8．__________为……而受苦 9．_______展望；指望 10．_______为……而献身 11．___________使产生，使出现 12．___________ 献身；把(时间、精力等)用于 13．_____________从事；忙于 14．_________________从更广泛的意义上来说，从更大的角度 15．_______ 徒劳，无结果，白白地 Ⅳ.重点句型 1．(句型公式)It is/has been＋一段时间＋since... 自从我从这所学校毕业以来已经十年了，我仍然非常想念我的同学和老师。 _________________________________________，and I still miss my classmates and teachers very much. 2．(句型公式)It's up to sb to do 我们是否有必要买这本参考书由你决定。 ____________________ if it is necessary for us to buy this reference book. $