Unit 5 Working the Land Words and expressions 课件 -2026-2027学年英语新人教版选择性必修第一册

该高中英语课件聚焦Unit 5 "Working the Land"核心词汇，通过词汇解析、常见搭配、即学即练等模块构建学习支架，从基础词形（如devote）到衍生词（devoted, devotion）、固定搭配（devote...to...）再到语境应用（例句填空），形成递进式知识脉络。 其亮点在于系统整合词汇变形（如intense→intensive→intensity）、固定搭配归类（如v. + sb. + of + sth.总结）及一词多义辨析（如yield表“产生”“屈服”），助力学生提升语言能力与思维品质。实例中“assume/presume/suppose”辨析培养精准用词能力，词汇变形表帮助构建词形网络，既夯实学生词汇基础，也为教师提供高效教学资源。

Unit 5 Working the Land Words and Expressions 1 【即学即练】 ① (devote) to his experiment, rarely does the scientist go to the theatre with his relatives. = (devote) himself to his experiment, rarely does the scientist go to the theatre with his relatives. devote vt. 把…献(给); 把…专用于; 专心于 devoted adj. 全心全意的；忠诚的；深爱的 devotion n. 投入 devote...to...把…奉献给…  sb. devote oneself to (doing) sth. 致力于;献身于;专心于  sb. be devoted to （doing） 致力于;献身于;专心于 常见搭配 Devoted Devoting 【即学即练】 ①There is a (short) of food in the remote village. 这个偏远村庄存在食物短缺问题。 ②This town is short farmland but rich in tourism resources. 这座城镇缺少耕地，但旅游资源丰富。 shortage n.不足;缺少;短缺 short adj. 短的，短期的，短暂的 shortly adv. 短暂地 shorten v. (使)变短，(使)缩短  a shortage of 缺乏  be short of 缺乏，不足  in short 总之，简而言之 常见搭配 shortage of 【即学即练】 ① We managed to convince him ____ our honesty. ② I am convinced ____ she will make great progress. ③ We tried to convince her ________ (change) her mind, but she refused. convince vt. 使相信; 使确信; 说服 convincing adj. 令人信服的 convinced adj. 相信的 convincingly adv. 令人信服地  convince sb. of sth. 使某人相信某事 convince sb. to do sth.说服某人做 be convinced that ... 确信…… 常见搭配 of that to change 常用v. + sb. +of + sth.类型总结 convince sb. of sth. accuse sb. of sth. cure sb. of sth. inform sb. of sth. cheat sb. of sth. persuade sb. of sth. warn sb. of sth. remind sb. of sth. 使某人相信某事 指控某人某事；指责某人 治愈某人的（疾病）；矫正某人的（坏习惯） 通知某人某事 骗取某人某物 使某人相信某事 警告某人某事 使某人想起某事 attain vt. (经过努力)获得;得到 attainable adj. 可得到的,可达到的 attainment n. 达到，成就，学识 attain one’s goal 实现某人的目标 常见搭配 conventional adj.传统的;习惯的 conventionally adv. 按照惯例 convention n．习俗；惯例；常规；传统手法 assumption n.假定; 承担; 获得 assume v. 假定; 认为; 设想; 承担; 假装 assuming conj. 假如 (assuming that+从句，主句）  assume (that)…假定 / 认为……  assuming (that) conj. 假定；假如（连词用法，写作加分）  assume sb/sth to be+形容词/名词：认为某人/某事是……  on the assumption that...假定…… 常见搭配 ① __________ (assume) that I am chosen to be leader of the Student Union, I will organize more diverse after‑school activities, varying from debate contests to group adventures. →On the __________ (assume) that I am chosen to be leader of the Student Union, I will organize more diverse after‑school activities, varying from debate contests to group adventures. 用括号内单词的适当形式填空 Assuming assumption 【拓展】 assumption n.假定; 承担; 获得 assume：指在很少或完全没有证据的情况下，主观武断地推测（想当然）。 presume：侧重于根据过去的经验或现有的现实迹象，把某事认定为事实（有根据的推测）。 suppose：最常用的词，指缺乏确切事实，根据一些现象进行的推测，也可表示“假设”以引出讨论。 ① I ________ that the team has got the warning, so I will not give further reminders. ② Never ________ conclusions without reliable facts. ③ ________ our plan doesn’t work out, what other options can we turn to? ④ Judging from his gestures, I ________ that he disagreed with the proposal. ⑤ It is unfair to ________ that every teenager prefers online entertainment. 选词填空（assume /presume/suppose，变换适当形式） presume assume Suppose presumed assume （依据迹象推定） （主观武断设想） （引出讨论，假设） （凭经验迹象推断） （无依据主观假定） intense adj.热切的;十分强烈的;激烈的 intensive adj.加强的；集中的；透彻的；加强语气的 intensely adv.强烈地；紧张地；热情地 intensity n.强度；紧张 intensify v.(使)加强，(使)强化；(使)变激烈 【即学即练】 ①He was overcome excitement when he received the special gift. 收到这份特别的礼物时，他激动不已。 ②Overcome nervousness, he drank some water to steady himself. 满心紧张，他喝了些水让自己镇定下来。 overcome vt.克服;战胜;解决 overcome-overcame-overcome overcome sth 克服... be overcome by/with 被（某种情绪) 控制； 常见搭配 with with 【即学即练】 ①The paper is an ____________(expand) of a series of speeches given last term. ②The author expanded his short story ______ a full-length one. expand v. 扩大; 增加; 扩展; 发展(业务) expansion n．扩大，增加 expansive adj.广阔的；豪爽的 expand ... into ... 把…扩展/发展成… 常见搭配 expansion into 【即学即练】 ①Ocean plastic is estimated ________(kill) millions of animals every year. 据估计，海洋塑料每年造成数百万动物死亡。 ②______ is estimated that the number of tourists who travel abroad has doubled in the past decade. 据估计，在过去十年里，出境旅游的游客数量翻了一番。 estimate vt.估计;估价;估算 n.估计 estimation n. 估计; 估算 underestimate v.低估 overestimate v.高估 It is estimated that 据估计…… estimate sb./sth. to be 估计某人/某物为…… 常见搭配 It to kill　 【即学即练】 ①Workers __________ (comprise) just 15 per cent of the city’s population. 工人仅占这座城市人口的 15%。 ②Success consists __________ not only opportunities but also efforts. 成功不仅有机遇，也包含付出 comprise vt.包括;包含;由…组成 be comprised of 由……组成，包含 consist of be made up of be composed of 常见搭配 由...组成 comprise of in turn 相应地；转而；依次；轮流 【拓展】 by turns take turns to do It’s one’s turn to do turn to sb it turns out that / to be 向某人求助 结果是；证明是 轮流地 轮流做 轮到某人做某事 写出下列句子中画线部分的汉语释义 ① The students answered the teacher’s questions in turn. ② The two sisters looked after their sick mother by turns. ③ We take turns to do the group report in our class. ④ It’s your turn to do the cleaning‑up of the classroom. ⑤ When he meets hard problems, he will turn to sb for practical advice. ⑥ It turns out that the young man has great talent for public speech. ⑦ It turns out to be a valuable chance for teenagers to gain social experience. 依次；轮流 轮流地 轮流做 轮到某人做某事 向某人求助 结果是；证明是 结果是；证明是 essential adj.完全必要的;极其重要的 essentially adv. 本质上; 根本上 essence n.本质，实质；精华 be essential to/for 对……很重要(vital、 crucial) It is essential for sb. to do... It is essential that sb (should) do... 做……是完全必要的 常见搭配 alternative n. 可供选择的事物 adj. 可供替代的；非传统的 alternate v. (使)交替，(使)轮流 alternatively adv. 可供选择地 have no alternative but to do sth.别无选择只好做某事 常见搭配 depth n. 向下(或向里)的距离；深(度) deep adj.深的　adv.深深地 deeply adv.深深地，强烈地 deepen v．(使)变深，(使)加深 【拓展】 adj. high wide long strong broad n. height width length strength breadth  v. heighten widen lengthen strengthen broaden 一词多义 1. yield 产生(收益)，提供；屈服，让步；放弃，缴出；折断，变形 ① She reluctantly yielded to their requirements. ② Though we tried hard to damage it, the metal bar would not yield.  ③ The survey yields valuable data.  ④ He refused to yield up his private documents. 屈服，让步 折断，变形 产生 (收益)，提供 放弃，缴出 一词多义 2. digest v.领会，领悟　n.摘要　v.消化 ① Herders in East Africa and northern Europe have got a gene change that helps them digest dairy when grown‑ups. ② It usually requires much time to digest fresh thoughts. ③ The group releases a monthly digest of ecological figures. 摘要 领会，领悟 消化 词汇变形 1．___________ vt.把……献(给)；把……专用于；专心于→___________ n．奉献；忠诚；挚爱→___________ adj．忠诚的；挚爱的 2． _____________n．不足；缺少；短缺→___________ adj.短的；矮的；缺乏的；简略的→___________ adv.短暂地→___________ v.变短 3．___________ vt.使相信；使确信；说服→ ___________adj.有说服力的；使人信服的→_________________ adj.确信的；坚信的 4．_____________ n．假定；设定；(责任的)承担；(权力的)获得→ _______________v.假定；设想→ ________________conj.假定；假设 5. ____________v. 克服；战胜 →___________adj. 被战胜的 devote devotion shortage short convince convincing assumption convinced assume assuming shortly shorten devoted overcome overcome 词汇变形 6．_____________ vt.& vi.扩大；增加 vt.扩展；发展(业务)→ ____________n.扩大；扩张；扩充 7．________________ n.消耗；消耗量；消费→_____________ vt.消耗；消费；吃；喝→ ____________n.消费者；用户；客户 8．____________ adj.含盐的；咸的→______________ n.盐 9．__________ n.扩建部分；扩大；电话分机→____________ vt.伸开；延伸；展开 10. __________ adj.真实的→_____________ v．实现→ ____________n. n．现实；事实→_____________adj.现实的；务实的 expand expansion consumption consume salty consumer extension extend salt real realise reality realistic 词汇变形 11．___________ adj.与化学有关的；化学的 n．化学制品；化学品→____________ n．化学→____________ adv.化学上地→___________ n．化学家；药剂师 12． ____________ adj.营养(物)的→_____________ adj.有营养的；营养丰富的→________________ n．营养；滋养 13．_______n．向下(或向里)的距离；深(度)→_______ adj.深的→_________ adv.深深地；强烈地→__________ vt.加深；(使)变深 14．_________ adv.全部地；完整地；完全地→______ adj.全部的 chemical chemistry chemically chemist nutritional nutritious deepen depth deep nutrition deeply entirely entire 词汇变形 15． ____________ adj.热切的;十分强烈的;激烈的→_____________ adj.加强的；集中的；→_______________adv.强烈地；紧张地→_______________ n.强度；加强→_______________ v.(使)加强，(使)强化 16．_______n.肥料→_______ v.使肥沃→_________ n.肥沃/生育能力→_______adj.肥沃的,富饶的 intense intensive intensely intensity intensify fertile fertilize fertility fertiliser Unit 5 Working the Land Thanks! 26 $