Unit 4 Natural Disasters 单词精讲 课件-2026-2027学年高中英语人教版必修第一册

该高中英语课件聚焦必修一Unit 4“Natural Disasters”主题，系统精讲31个核心单词及短语，按“灾害与破坏”“险境与救援”等4个Section逻辑划分，通过图解助记（如flood搭配结构）构建从基础词义到拓展应用的学习支架，帮助学生逐步掌握主题词汇网络。 其亮点在于知识拓展模块系统梳理词性转换（如disaster→disastrous）和高频搭配（如rescue...from...），提升语言能力；即时演练结合语法填空与翻译（如flood的动词用法练习），培养思维品质中的语境分析能力；用法点拨辨析易混词（如affect/effect），提供学习策略，提升学习能力。学生能扎实掌握词汇应用，教师可直接用于课堂，提高教学效率。

必修一 · UNIT 4 Natural Disasters 自然灾害 · 单词与短语精讲 Words and Expressions 高一年级 第一学期 共 31 词 2 课时 / 90 分钟 人教版 New Senior English 导入：本单元主题为自然灾害。带学生快速浏览本课时31个核心单词，明确目标——音标、词义、教材原句、词性转换、高频搭配与练习。 1 01 SECTION Disaster & Damage 灾害与破坏 本节单词 disaster flood rescue damage destroy evacuate death affect 进入第 01 部分：灾害与破坏。先整体认读本节单词，再逐词精讲。 2 Unit 4 · Word 01 / 31 1 disaster /dɪˈzɑːstə(r)/ n. 灾难；灾害；不幸；彻底失败的人或事 例句 In Context 例句 The drought was a disaster for farmers across the whole province. His at tempt to cook dinner ended in complete disaster. 这场旱灾对全省的农民来说是一场灾难。 他做晚饭的尝试以彻底的失败告终。 tornado [tɔ:ˈneɪdəʊ ] n.(-oes/-os) 龙卷风;旋风 drought [draʊt ] n.旱灾;久旱 landslide [ˈlændslaɪd] n. (landfall) (山地或悬崖的)崩塌;滑坡 tsunami [tsu:ˈnɑ:mi ] 海啸 volcanic eruption [vɔlˈkænɪk ɪˈrʌpʃən] 火山喷发 讲解 disaster：先正音（/dɪˈzɑːstə(r)/），再过词义。结合例句操练，重点关注教材原句的语境。 3 Unit 4 · Word 01 / 31 拓 disaster 知识拓展 Word Formation & Collocations 词性转换 Forms disastrous adj. 灾难性的 高频搭配 Key Collocations disaster area / disaster-affected area 灾区 disaster recovery 灾后恢复 natural disaster 自然灾害 disaster 拓展：先讲词性转换（构词法），再带搭配。提醒学生整理到笔记，搭配是写作与完形的高频考点。 4 Unit 4 · Word 01 / 31 练 disaster 即时演练 Practice · 语法填空 + 翻译 语法填空 Fill in the blanks 1 Building a factory so close to the river could have ______ (disaster) results. 2 Experts say the oil leak is an environmental ______ for the whole bay. (disaster) 3 这场地震是这座小城多年来遭遇的最严重的灾难。 The earthquake was the most serious disaster the small town had faced for years. disastrous disaster disaster 练习：先让学生独立完成填空，再核对答案，结合 “用法点拨” 强调易错点与得分点。 5 Unit 4 · Word 02 / 31 2 flood /flʌd/ n. & v. n. 洪水；大量　vi. 淹没；大量涌入　vt. 使灌满水；淹没 例句 In Context 例句 Heavy rain caused a serious flood in the mountain village last night. A flood of tourists pours into the old town every summer holiday. 图解助记 · Visual cue 昨夜的暴雨在山村引发了严重的洪灾。 每年暑假都有大量游客涌入这座古镇。 讲解 flood：先正音（/flʌd/），再过词义。结合例句操练，重点关注教材原句的语境。 6 Unit 4 · Word 02 / 31 拓 flood 知识拓展 Word Formation & Collocations 高频搭配 Key Collocations be filled with 充满；挤满 a flood of 大量的 be flooded with 被……淹没；挤满 in flood 在泛滥；涨水 flood 拓展：先讲词性转换（构词法），再带搭配。提醒学生整理到笔记，搭配是写作与完形的高频考点。 7 Unit 4 · Word 02 / 31 练 flood 即时演练 Practice · 语法填空 + 翻译 1 Because of the melting snow, the whole valley is now ______ flood. 2 Within minutes the basement ______ (flood) and everything was ruined. 3 翻译 Translation 暴雨过后，这个村庄遭受了一场严重的洪水。 用法点拨 Tip flood 既可作名词 “洪水”，也可作动词 “淹没、涌入”；a flood of 后接名词表 “大量的”。 After the heavy rain, the village was hit by a serious flood. in was flooded flood 练习：先让学生独立完成填空，再核对答案，结合 “用法点拨” 强调易错点与得分点。 8 Unit 4 · Word 03 / 31 3 rescue /ˈreskjuː/ n. & vt. 营救；救援 例句 In Context 例句 Lifeguards quickly came to the rescue of the swimmer caught by the waves. The team managed to rescue two hikers from the snowy mountain. 图解助记 · Visual cue 救生员迅速赶来营救被海浪卷住的游泳者。 救援队设法把两名徒步者从雪山中解救了出来。 讲解 rescue：先正音（/ˈreskjuː/），再过词义。结合例句操练，重点关注教材原句的语境。 9 Unit 4 · Word 03 / 31 拓 rescue 知识拓展 Word Formation & Collocations 高频搭配 Key Collocations rescue … from … 把……从……中解救出来 come / go to one's rescue 来 / 去援救某人 make / perform / attempt a rescue 进行（尝试）营救 rescue team / workers / boats 救援队 / 人员 / 船 rescue 拓展：先讲词性转换（构词法），再带搭配。提醒学生整理到笔记，搭配是写作与完形的高频考点。 10 Unit 4 · Word 03 / 31 练 rescue 即时演练 Practice · 语法填空 + 翻译 1.When I forgot my lines on stage, a classmate came to my ______. The coast guard rescued the sailors ______ the sinking boat just in time. 翻译 Translation 消防员设法把那个孩子从着火的房子里救了出来。 用法点拨 Tip rescue sb. from … 是高频结构；come to one's rescue 中 rescue 作名词。 The firefighters managed to rescue the child from the house on fire. rescue from rescue 练习：先让学生独立完成填空，再核对答案，结合 “用法点拨” 强调易错点与得分点。 11 Unit 4 · Word 04 / 31 4 damage /ˈdæmɪdʒ/ vt. & n. vt. 损害；损坏　n. 损害；损坏；损失 例句 In Context 例句 Driving too fast on rough roads can damage your car badly. The earthquake caused great damage to the old bridge. 在崎岖的路上开得太快会严重损坏你的汽车。 这次地震对那座旧桥造成了巨大的损坏。 讲解 damage：先正音（/ˈdæmɪdʒ/），再过词义。结合例句操练，重点关注教材原句的语境。 12 Unit 4 · Word 04 / 31 拓 damage 知识拓展 Word Formation & Collocations 词性转换 Forms damaged adj. 被破坏的 高频搭配 Key Collocations do / cause damage to …对……造成损害 serious / heavy damage 严重的损害 be badly / seriously damaged 严重受损 damages (pl.) 损害赔偿金（熟词生义） damage 拓展：先讲词性转换（构词法），再带搭配。提醒学生整理到笔记，搭配是写作与完形的高频考点。 13 Unit 4 · Word 04 / 31 练 damage 即时演练 Practice · 单句语法填空 语法填空 Fill in the blanks 1 The storm did serious damage ______ the crops along the coast. 2 If it is dropped on the floor, the screen ______ (damage) easily. 3 The court ordered the company to pay ______ (damage) to the injured workers. 用法点拨 Tip 熟词生义：damage 用作名词复数 damages 时，表示法院判定的 “损害赔偿金”。 to is damaged damages damage 练习：先让学生独立完成填空，再核对答案，结合 “用法点拨” 强调易错点与得分点。 14 Unit 4 · Word 05 / 31 5 destroy /dɪˈstrɔɪ/ vt. 摧毁；毁灭 例句 In Context 例句 A single careless fire can destroy thousands of trees in the forest. The flood destroyed nearly every house along the river. 一场粗心引起的火灾就能毁掉森林里成千上万棵树。 洪水几乎摧毁了河边的每一座房屋。 讲解 destroy：先正音（/dɪˈstrɔɪ/），再过词义。结合例句操练，重点关注教材原句的语境。 15 Unit 4 · Word 05 / 31 拓 destroy 知识拓展 Word Formation & Collocations 词性转换 Forms destruction n. 破坏；摧毁 destructive adj. 毁灭性的 高频搭配 Key Collocations destroy one's life / hope / confidence 毁掉某人的生活 / 希望 / 信心 be totally destroyed 被彻底摧毁 destroy the environment 破坏环境 destroyer n. 破坏者 destroy 拓展：先讲词性转换（构词法），再带搭配。提醒学生整理到笔记，搭配是写作与完形的高频考点。 16 Unit 4 · Word 05 / 31 练 destroy 即时演练 Practice · 单句语法填空 语法填空 Fill in the blanks 1 The huge wave almost ______ (destroy) the small fishing village. 2 Years of war brought terrible ______ (destroy) to the ancient city. 3 Such ______ (destroy) storms can flatten houses within minutes. 用法点拨 Tip destroy 指彻底的毁坏或毁灭，往往难以修复，语气比 damage 强。 destroyed destruction destructive destroy 练习：先让学生独立完成填空，再核对答案，结合 “用法点拨” 强调易错点与得分点。 17 Unit 4 · Word 06 / 31 6 evacuate /ɪˈvækjueɪt/ vt. 疏散；撤出；撤离 例句 In Context 例句 When the alarm rang, teachers helped to evacuate the students at once. The whole town had to evacuate before the storm arrived. 图解助记 · Visual cue 警报响起时，老师们立刻帮助疏散学生。 在风暴来临之前，全镇人都不得不撤离。 讲解 evacuate：先正音（/ɪˈvækjueɪt/），再过词义。结合例句操练，重点关注教材原句的语境。 18 Unit 4 · Word 06 / 31 拓 evacuate 知识拓展 Word Formation & Collocations 词性转换 Forms evacuation n. 疏散；撤离；排泄 高频搭配 Key Collocations evacuate the area / building 撤离该地区 / 大楼 evacuate sb. from … 把某人从……疏散出来 an emergency evacuation 紧急疏散 evacuate 拓展：先讲词性转换（构词法），再带搭配。提醒学生整理到笔记，搭配是写作与完形的高频考点。 19 Unit 4 · Word 06 / 31 练 evacuate 即时演练 Practice · 语法填空 + 翻译 语法填空 Fill in the blanks 1 As the flood rose, hundreds of families were ______ (evacuate) by boat. 2 The school held a fire drill to practise a quick ______ (evacuate). 3 警报响起时，老师们帮助学生迅速撤离教学楼。 用法点拨 Tip evacuate 既可 “疏散（人）”，也可 “撤离（地点）”，注意两种搭配。 When the alarm went off, the teachers helped the students evacuate the building quickly. evacuated evacuation evacuate 练习：先让学生独立完成填空，再核对答案，结合 “用法点拨” 强调易错点与得分点。 20 Unit 4 · Word 07 / 31 7 death /deθ/ n. 死；死亡 例句 In Context 例句 The earthquake led to the death of hundreds of people. Many wild species are in danger of dying out because of pollution. 这场地震导致数百人死亡。 由于污染，许多野生物种正面临灭绝的危险。 讲解 death：先正音（/deθ/），再过词义。结合例句操练，重点关注教材原句的语境。 21 Unit 4 · Word 07 / 31 拓 death 知识拓展 Word Formation & Collocations 词性转换 Forms die vi. 死亡（现在分词 dying） dead adj. 死的 deadly adj. 致命的 dying adj. 垂死的 高频搭配 Key Collocations die from … 死于（外部原因） die of …死于（内部原因：疾病、衰老） die out 灭绝；绝迹 be dying for sth. 迫切想要某事 death 拓展：先讲词性转换（构词法），再带搭配。提醒学生整理到笔记，搭配是写作与完形的高频考点。 22 Unit 4 · Word 07 / 31 练 death 即时演练 Practice · 单句语法填空 语法填空 Fill in the blanks 1 Careless driving was to blame for several ______ (die) on that road last year. 2 Without our protection, these rare birds may soon die ______. 3 The whole nation mourned the ______ (die) of the famous scientist. 用法点拨 Tip 表抽象 “死” 为不可数；表具体死亡人数则可数（deaths）。die 不用于被动结构。 deaths out death death 练习：先让学生独立完成填空，再核对答案，结合 “用法点拨” 强调易错点与得分点。 23 Unit 4 · Word 08 / 31 8 affect /əˈfekt/ vt. 影响；（疾病）侵袭；深深打动 例句 In Context （影响） Bad weather can seriously affect the crops grown by farmers. （侵袭） This illness mostly affects older people in winter. （打动） The students were deeply affected by the volunteer's story. 恶劣的天气会严重影响农民种的庄稼。 这种疾病在冬天主要侵袭老年人。 学生们被这位志愿者的故事深深打动。 讲解 affect：先正音（/əˈfekt/），再过词义。结合例句操练，重点关注教材原句的语境。 24 Unit 4 · Word 08 / 31 拓 affect 知识拓展 Word Formation & Collocations 词性转换 Forms affection n. 喜爱，钟爱 高频搭配 Key Collocations be affected by 被……打动 / 影响 have a great affection for 很喜欢…… have an effect / influence on 对……有影响 affect 拓展：先讲词性转换（构词法），再带搭配。提醒学生整理到笔记，搭配是写作与完形的高频考点。 25 Unit 4 · Word 08 / 31 练 affect 即时演练 Practice · 单句语法填空 语法填空 Fill in the blanks 1 Families ______ (affect) by the flood were moved to safer towns. 2 The kind old teacher was held in deep ______ (affect) by everyone. 3 Staying up too late will surely ______ (affect) your health. 用法点拨 Tip 辨析：affect 是动词 “影响”；effect 多作名词 “影响、效果”。affection 指 “喜爱”。 affected affection affect affect 练习：先让学生独立完成填空，再核对答案，结合 “用法点拨” 强调易错点与得分点。 26 02 SECTION Danger & Rescue 险境与救援 本节单词 as if ruin shock trap bury breathe revive unify 进入第 02 部分：险境与救援。先整体认读本节单词，再逐词精讲。 27 Unit 4 · Word 09 / 31 9 as if /əz ɪf/ conj. 似乎；好像；仿佛（= as though） 例句 In Context （真实情况，陈述语气） It looks as if the meeting will start a little late. （与现在相反，虚拟） He talks about the plan as if he were in charge of it. （与过去相反） She described the town as if she had grown up there. 看起来这次会议要稍微晚一点开始。 他谈论这个计划的样子，好像自己负责一样。 她描述那个小镇，好像在那里长大似的。 讲解 as if：先正音（/əz ɪf/），再过词义。结合例句操练，重点关注教材原句的语境。 28 Unit 4 · Word 09 / 31 拓 as if 知识拓展 Word Formation & Collocations 高频搭配 Key Collocations as if + 一般过去时 与现在事实相反 as if + had done 与过去事实相反 as if + would / could do 与将来事实相反 as if 引导表语从句 You look as if you didn' t care． He talks about Rome as if he had been there before． He opened his mouth as if he would say something． It looks as if it is going to rain. as if 拓展：先讲词性转换（构词法），再带搭配。提醒学生整理到笔记，搭配是写作与完形的高频考点。 29 Unit 4 · Word 09 / 31 练 as if 即时演练 Practice · 语法填空 + 翻译 语法填空 Fill in the blanks 1 He gave orders as if he ______ (be) the manager of the company. 2 She spoke about Paris as if she ______ (live) there for years. 3 翻译 Translation 他谈论那个计划的样子，好像自己负责一样。 用法点拨 Tip 难点：as if 引导从句若表示不真实情况，常用虚拟语气；动词时态比实际 “早一个时态”。 He talks about the plan as if he were in charge of it. were had lived as if 练习：先让学生独立完成填空，再核对答案，结合 “用法点拨” 强调易错点与得分点。 30 Unit 4 · Word 10 / 31 10 ruin /ˈruːɪn/ n. & vt. n. 破坏；毁坏；废墟　vt. 破坏；毁坏；使破产 例句 In Context 例句 A sudden storm ruined our long-planned picnic by the lake. After the war, the beautiful old city lay in ruins. 一场突如其来的暴风雨毁了我们筹划已久的湖边野餐。 战后，这座美丽的古城成了一片废墟。 讲解 ruin：先正音（/ˈruːɪn/），再过词义。结合例句操练，重点关注教材原句的语境。 31 Unit 4 · Word 10 / 31 拓 ruin 知识拓展 Word Formation & Collocations 高频搭配 Key Collocations in ruins 严重破坏；破败不堪 be / lie in ruins 成为废墟 ruin oneself 毁掉自己 ruin one's health / future 毁坏某人的健康 / 未来 ruin 拓展：先讲词性转换（构词法），再带搭配。提醒学生整理到笔记，搭配是写作与完形的高频考点。 32 Unit 4 · Word 10 / 31 练 ruin 即时演练 Practice · 单句语法填空 语法填空 Fill in the blanks 1 The terrible fire left the famous palace in ______ (ruin). 2 Many old temples fell ______ ruin after the great earthquake. 3 If you keep wasting your time, you will ruin ______ (you). 用法点拨 Tip 辨析：ruin 指使美好事物失去优良特性、不能恢复；in ruins 为固定搭配。 ruins into / to yourself ruin 练习：先让学生独立完成填空，再核对答案，结合 “用法点拨” 强调易错点与得分点。 33 Unit 4 · Word 11 / 31 11 shock /ʃɒk/ n. & vt. n. 休克；震惊；令人震惊的事　vt. （使）震惊 例句 In Context 例句 Losing in the final round deeply shocked the young players. We were all shocked by the terrible power of the storm. 在最后一轮失利让年轻队员们深受震动。 我们都被这场风暴可怕的威力震惊了。 讲解 shock：先正音（/ʃɒk/），再过词义。结合例句操练，重点关注教材原句的语境。 34 Unit 4 · Word 11 / 31 拓 shock 知识拓展 Word Formation & Collocations 词性转换 Forms shocked adj. 感到震惊的 shocking adj. 令人震惊的 高频搭配 Key Collocations in shock 震惊地；吃惊地 to one's shock 令某人震惊的是 be a shock to sb. 使某人吃惊 be shocked at / by 对……感到震惊 shock 拓展：先讲词性转换（构词法），再带搭配。提醒学生整理到笔记，搭配是写作与完形的高频考点。 35 Unit 4 · Word 11 / 31 练 shock 即时演练 Practice · 语法填空 + 翻译 语法填空 Fill in the blanks 1 It shocked the village ______ (find) that the bridge was gone. 2 The whole class was shocked ______ the sudden bad news. 3 翻译 Translation 得知大桥倒塌的消息，整个小镇都震惊了。 用法点拨 Tip be shocked 表 “（人）感到震惊”；shocking 表 “（事）令人震惊”，主语不同。 The whole town was shocked to hear that the bridge had collapsed. to find at / by shock 练习：先让学生独立完成填空，再核对答案，结合 “用法点拨” 强调易错点与得分点。 36 Unit 4 · Word 12 / 31 12 trap /træp/ n. & v. n. 险境；陷阱　v. 使落入险境；使陷入圈套 例句 In Context 例句 After the earthquake, a few people were still trapped under the ruins. Be careful not to fall into the trap set by the dishonest seller. 地震之后，仍有几个人被困在废墟下。 小心别落入那个不诚实卖家设下的圈套。 讲解 trap：先正音（/træp/），再过词义。结合例句操练，重点关注教材原句的语境。 37 Unit 4 · Word 12 / 31 拓 trap 知识拓展 Word Formation & Collocations 高频搭配 Key Collocations be trapped in 困在……中；陷在……中 trap sb. into (doing) sth. 诱使某人做某事 set a trap for 给……设圈套 fall into a trap 落入圈套 trap 拓展：先讲词性转换（构词法），再带搭配。提醒学生整理到笔记，搭配是写作与完形的高频考点。 38 Unit 4 · Word 12 / 31 练 trap 即时演练 Practice · 单句语法填空 语法填空 Fill in the blanks 1 Several miners were trapped ______ the dark tunnel for two days. 2 The clever lawyer trapped the witness ______ telling the truth. 3 They trapped the man into ______ (admit) what he had done. 用法点拨 Tip trap 的过去式、过去分词为 trapped；trap sb. into doing 中用动名词。 in into admitting trap 练习：先让学生独立完成填空，再核对答案，结合 “用法点拨” 强调易错点与得分点。 39 Unit 4 · Word 13 / 31 13 bury /ˈberi/ vt. 埋葬；安葬（buried; buried） 例句 In Context 例句 The landslide buried several cars under tons of mud and rock. He buried himself in his studies to prepare for the contest. 山体滑坡把好几辆汽车埋在了数吨泥石之下。 他埋头学习，为比赛做准备。 讲解 bury：先正音（/ˈberi/），再过词义。结合例句操练，重点关注教材原句的语境。 40 Unit 4 · Word 13 / 31 拓 bury 知识拓展 Word Formation & Collocations 高频搭配 Key Collocations bury sth. in 把……埋到……里 bury one's feelings 情感不外露 bury oneself in = be buried in 专心于 be absorbed in / focus on 专注于（同义替换） bury 拓展：先讲词性转换（构词法），再带搭配。提醒学生整理到笔记，搭配是写作与完形的高频考点。 41 Unit 4 · Word 13 / 31 练 bury 即时演练 Practice · 单句语法填空 语法填空 Fill in the blanks 1 Since the exams came near, he ______ (bury) in his books day and night. 2 ______ (bury) in her work, she didn't hear the doorbell ring. 3 When you bury yourself ______ a good novel, hours fly by. 用法点拨 Tip bury oneself in / be buried in 表 “专心于”，可与 devote oneself to 等替换。 has been buried Buried in bury 练习：先让学生独立完成填空，再核对答案，结合 “用法点拨” 强调易错点与得分点。 42 Unit 4 · Word 14 / 31 14 breathe /briːð/ vi. & vt. 呼吸 例句 In Context 例句 It is hard to breathe in the thin air high up the mountain. He stopped to take a deep breath before going on. 在高山稀薄的空气中很难呼吸。 他停下来深吸了一口气，然后继续前行。 讲解 breathe：先正音（/briːð/），再过词义。结合例句操练，重点关注教材原句的语境。 43 Unit 4 · Word 14 / 31 拓 breathe 知识拓展 Word Formation & Collocations 词性转换 Forms breath n. 呼吸（名词） breathless adj. 上气不接下气的 高频搭配 Key Collocations out of breath 运动后喘不过气来 hold one's breath 闭气；屏住呼吸 lose one's breath 喘不上气来 breathe in / out 吸气 / 呼气 breathe 拓展：先讲词性转换（构词法），再带搭配。提醒学生整理到笔记，搭配是写作与完形的高频考点。 44 Unit 4 · Word 14 / 31 练 breathe 即时演练 Practice · 语法填空 + 翻译 语法填空 Fill in the blanks 1 The thick smoke made it almost impossible ______ (breathe). 2 She ran so fast that she was soon out ______ breath. 3 翻译 Translation 在高山稀薄的空气中很难呼吸。 用法点拨 Tip 辨析：breathe 是动词（词尾 -the，读 /ð/）；breath 是名词（读 /θ/），勿混。 It is hard to breathe in the thin air on the high mountain. to breathe of breathe 练习：先让学生独立完成填空，再核对答案，结合 “用法点拨” 强调易错点与得分点。 45 Unit 4 · Word 15 / 31 15 revive /rɪˈvaɪv/ v. 复活；使苏醒；（使）恢复 例句 In Context 例句 A glass of cold water helped to revive her after the long walk. The town is trying to revive its old festivals and customs. 一杯凉水让她在长途步行后恢复了精神。 这个小镇正努力复兴它古老的节日和习俗。 讲解 revive：先正音（/rɪˈvaɪv/），再过词义。结合例句操练，重点关注教材原句的语境。 46 Unit 4 · Word 15 / 31 拓 revive 知识拓展 Word Formation & Collocations 词性转换 Forms revival n. 复苏；复兴 高频搭配 Key Collocations revive sb. 使某人苏醒 revive a tradition / custom 复兴一种传统 / 习俗 revive the economy 重振经济 revive 拓展：先讲词性转换（构词法），再带搭配。提醒学生整理到笔记，搭配是写作与完形的高频考点。 47 Unit 4 · Word 15 / 31 练 revive 即时演练 Practice · 单句语法填空 语法填空 Fill in the blanks 1 The doctors did all they could to ______ (revive) the drowning boy. 2 Recently there has been a ______ (revive) of interest in old folk songs. 3 A short rest and a hot drink soon ______ (revive) the tired climbers. 用法点拨 Tip revive 既可指 “使人苏醒”，也可指 “使……复兴 / 恢复”，名词形式为 revival。 revive revival revived revive 练习：先让学生独立完成填空，再核对答案，结合 “用法点拨” 强调易错点与得分点。 48 Unit 4 · Word 16 / 31 16 unify /ˈjuːnɪfaɪ/ vt. 统一；（使）成一体 例句 In Context 例句 A shared goal can unify people from very different backgrounds. The coach worked hard to unify the players into one strong team. 共同的目标能把背景迥异的人团结在一起。 教练努力把队员们凝聚成一支强大的队伍。 讲解 unify：先正音（/ˈjuːnɪfaɪ/），再过词义。结合例句操练，重点关注教材原句的语境。 49 Unit 4 · Word 16 / 31 拓 unify 知识拓展 Word Formation & Collocations 词性转换 Forms unity n. 团结；统一 unified adj. 统一的 union n. 联盟；联合 高频搭配 Key Collocations unify the country 统一国家 a unified standard 统一的标准 in unity 团结一致 unify 拓展：先讲词性转换（构词法），再带搭配。提醒学生整理到笔记，搭配是写作与完形的高频考点。 50 Unit 4 · Word 16 / 31 练 unify 即时演练 Practice · 语法填空 + 翻译 语法填空 Fill in the blanks 1 The new leader did his best to ______ (unify) the divided nation. 2 Our teacher always says that there is strength in ______ (unify). (名词) 3 翻译 Translation 一个共同的目标能把队员们团结成一个整体。 用法点拨 Tip unify 为动词 “统一”；其名词 unity 表 “团结、统一”，注意拼写变化。 unify unity A common goal can unify the players into one team. unify 练习：先让学生独立完成填空，再核对答案，结合 “用法点拨” 强调易错点与得分点。 51 03 SECTION Survival & Relief 生存与援助 本节单词 suffer erupt supply survive power whistle calm aid 进入第 03 部分：生存与援助。先整体认读本节单词，再逐词精讲。 52 Unit 4 · Word 17 / 31 17 suffer /ˈsʌfə(r)/ vt. & vi. vt. 遭受；蒙受　vi. 受苦；患病 例句 In Context 例句 Thousands of people suffered from hunger after the long drought. The coastal towns suffered great losses in the storm. 长期干旱之后，成千上万的人忍饥挨饿。 沿海城镇在这场风暴中遭受了巨大损失。 讲解 suffer：先正音（/ˈsʌfə(r)/），再过词义。结合例句操练，重点关注教材原句的语境。 53 Unit 4 · Word 17 / 31 拓 suffer 知识拓展 Word Formation & Collocations 词性转换 Forms suffering n. 痛苦；苦难 sufferer n. 受难者 高频搭配 Key Collocations suffer pain / defeat / loss 遭受痛苦 / 失败 / 损失 suffer from 受……之苦；患（病） suffer a setback 遭受挫折 suffer 拓展：先讲词性转换（构词法），再带搭配。提醒学生整理到笔记，搭配是写作与完形的高频考点。 54 Unit 4 · Word 17 / 31 练 suffer 即时演练 Practice · 单句语法填空 语法填空 Fill in the blanks 1 As a child, she suffered greatly ______ hunger and cold. 2 The long drought brought terrible ______ (suffer) to the farmers. 3 Many families ______ (suffer) heavy losses in the flood last summer. 用法点拨 Tip suffer 作及物动词直接接 “痛苦、损失”；suffer from 多接 “疾病、困扰”。 from suffering suffered suffer 练习：先让学生独立完成填空，再核对答案，结合 “用法点拨” 强调易错点与得分点。 55 Unit 4 · Word 18 / 31 18 erupt /ɪˈrʌpt/ vi. （火山）爆发；（岩浆、烟）喷出 例句 In Context 例句 Without warning, the mountain began to erupt and people ran for safety. Loud cheers erupted as the rescued miners came out safely. 那座山毫无征兆地开始喷发，人们纷纷逃命。 当获救的矿工平安出来时，人群中爆发出热烈的欢呼。 讲解 erupt：先正音（/ɪˈrʌpt/），再过词义。结合例句操练，重点关注教材原句的语境。 56 Unit 4 · Word 18 / 31 拓 erupt 知识拓展 Word Formation & Collocations 词性转换 Forms eruption n. （火山）爆发；喷发 高频搭配 Key Collocations a volcano erupts 火山爆发 erupt into … 突然爆发为…… a volcanic eruption 一次火山爆发 erupt 拓展：先讲词性转换（构词法），再带搭配。提醒学生整理到笔记，搭配是写作与完形的高频考点。 57 Unit 4 · Word 18 / 31 练 erupt 即时演练 Practice · 语法填空 + 翻译 语法填空 Fill in the blanks 1 People feared the mountain would ______ (erupt) before they could escape. 2 The 1991 ______ (erupt) of the volcano changed the whole landscape. 3 翻译 Translation 火山突然爆发，把火山灰抛向高空。 用法点拨 Tip erupt 为不及物动词，常用于火山或情绪、冲突的 “突然爆发”，名词为 eruption。 The volcano erupted suddenly and threw ash high into the air. erupt eruption erupt 练习：先让学生独立完成填空，再核对答案，结合 “用法点拨” 强调易错点与得分点。 58 Unit 4 · Word 19 / 31 19 supply /səˈplaɪ/ n. & vt. n. 供应；补给品；供应量　vt. 供应；提供 例句 In Context 例句 During the long winter, fresh vegetables were hard to supply. The charity supplied the villagers with food and medicine. 在漫长的冬天里，新鲜蔬菜很难供应。 慈善机构向村民提供了食物和药品。 讲解 supply：先正音（/səˈplaɪ/），再过词义。结合例句操练，重点关注教材原句的语境。 59 Unit 4 · Word 19 / 31 拓 supply 知识拓展 Word Formation & Collocations 高频搭配 Key Collocations supply sth. to sb. 把某物供应给某人 supply sb. with sth. 以某物供应某人 in short supply 供应不足 supply and demand 供给与需求 supply 拓展：先讲词性转换（构词法），再带搭配。提醒学生整理到笔记，搭配是写作与完形的高频考点。 60 Unit 4 · Word 19 / 31 练 supply 即时演练 Practice · 单句语法填空 语法填空 Fill in the blanks 1 Volunteers supplied warm clothes ______ the homeless after the flood. 2 The store promised to supply us ______ everything we needed. 3 In our village, fresh milk ______ (supply) to each home every morning. 用法点拨 Tip 辨析：supply / provide sth. to sb. 与 supply sb. with sth. 介词搭配不同，易错。 to with is supplied supply 练习：先让学生独立完成填空，再核对答案，结合 “用法点拨” 强调易错点与得分点。 61 Unit 4 · Word 20 / 31 20 survive /səˈvaɪv/ vi. & vt. vi. 生存；存活　vt. 幸存；艰难度过；比……活得长 例句 In Context 例句 Only a few passengers survived the terrible plane crash. These tiny insects have survived for millions of years. 只有几名乘客在那场可怕的空难中幸存下来。 这些微小的昆虫已经存活了数百万年。 讲解 survive：先正音（/səˈvaɪv/），再过词义。结合例句操练，重点关注教材原句的语境。 62 Unit 4 · Word 20 / 31 拓 survive 知识拓展 Word Formation & Collocations 词性转换 Forms survival n. 生存，幸存 survivor n. 幸存者；生还者 高频搭配 Key Collocations survive from 从……存活下来 survive on = live on 靠……存活 survive the disaster / war 在灾难 / 战争中幸存 survive 拓展：先讲词性转换（构词法），再带搭配。提醒学生整理到笔记，搭配是写作与完形的高频考点。 63 Unit 4 · Word 20 / 31 练 survive 即时演练 Practice · 单句语法填空 语法填空 Fill in the blanks 1 Some of these trees ______ (survive) on the island for hundreds of years. 2 For many small shops, daily ______ (survive) is a real struggle. 3 Rescue dogs were trained to search for ______ (survive) after the quake. 用法点拨 Tip 记忆：survive → survival，类比 arrive → arrival，approve → approval。 have survived survival survivors survive 练习：先让学生独立完成填空，再核对答案，结合 “用法点拨” 强调易错点与得分点。 64 Unit 4 · Word 21 / 31 21 power /ˈpaʊə(r)/ n. & vt. n. 能量；力量；电力供应；权力　vt. 驱动；推动 例句 In Context 例句 A storm at sea shows the great power of nature. （动词） The new ship is powered by two huge engines. 海上的风暴展现了大自然的巨大力量。 这艘新船由两台巨大的发动机驱动。 讲解 power：先正音（/ˈpaʊə(r)/），再过词义。结合例句操练，重点关注教材原句的语境。 65 Unit 4 · Word 21 / 31 拓 power 知识拓展 Word Formation & Collocations 词性转换 Forms powerful adj. 强大的；有权势的 powerfully adv. 强有力地 高频搭配 Key Collocations have the power to do sth. 有能力做某事 beyond / within one's power 某人能力之外 / 之内 come to power 开始执政（动作） be in power 执政（状态） power 拓展：先讲词性转换（构词法），再带搭配。提醒学生整理到笔记，搭配是写作与完形的高频考点。 66 Unit 4 · Word 21 / 31 练 power 即时演练 Practice · 单句语法填空 语法填空 Fill in the blanks 1 Wind and solar ______ are becoming popular sources of clean energy. 2 Never before has the country been so ______ (power) as it is today. 3 These machines are ______ (power) by electricity rather than oil. 用法点拨 Tip power 含义丰富：力量、电力、权力等；辨析 come to power（动作）与 be in power（状态）。 power powerful powered power 练习：先让学生独立完成填空，再核对答案，结合 “用法点拨” 强调易错点与得分点。 67 Unit 4 · Word 22 / 31 22 whistle /ˈwɪsl/ v. & n. v. 吹口哨　n. 哨子；呼啸声 例句 In Context 例句 The boy whistled a cheerful tune on his way home. We could hear the whistle of the wind through the broken windows. 男孩在回家的路上吹着欢快的曲调。 我们能听见风穿过破窗户发出的呼啸声。 讲解 whistle：先正音（/ˈwɪsl/），再过词义。结合例句操练，重点关注教材原句的语境。 68 Unit 4 · Word 22 / 31 拓 whistle 知识拓展 Word Formation & Collocations 高频搭配 Key Collocations blow a whistle 吹哨子 whistle a tune 用口哨吹曲子 the whistle of the wind 风的呼啸声 whistle 拓展：先讲词性转换（构词法），再带搭配。提醒学生整理到笔记，搭配是写作与完形的高频考点。 69 Unit 4 · Word 22 / 31 练 whistle 即时演练 Practice · 语法填空 + 翻译 语法填空 Fill in the blanks 1 The old man ______ (whistle) softly while he worked in the garden. 2 Far away, the lonely ______ (whistle) of a train broke the silence. 3 翻译 Translation 男孩在回家的路上吹着欢快的曲调。 用法点拨 Tip whistle 中字母 t 不发音，读 /ˈwɪsl/；既可作动词也可作名词。 The boy whistled a cheerful tune on his way home. whistled whistle whistle 练习：先让学生独立完成填空，再核对答案，结合 “用法点拨” 强调易错点与得分点。 70 Unit 4 · Word 23 / 31 23 calm /kɑːm/ adj. & v. adj. 镇静的；沉着的；（天气、海洋）平静的　v. （使）平静 例句 In Context 例句 Try to stay calm if you ever get lost in the mountains. After the wind dropped, the sea became calm again. 万一在山里迷路，要努力保持镇静。 风停之后，大海又恢复了平静。 讲解 calm：先正音（/kɑːm/），再过词义。结合例句操练，重点关注教材原句的语境。 71 Unit 4 · Word 23 / 31 拓 calm 知识拓展 Word Formation & Collocations 词性转换 Forms calmly adv. 镇静地 高频搭配 Key Collocations calm down （使）平静下来；镇静下来 stay / keep calm 保持镇静 remain calm 保持冷静 calm 拓展：先讲词性转换（构词法），再带搭配。提醒学生整理到笔记，搭配是写作与完形的高频考点。 72 Unit 4 · Word 23 / 31 练 calm 即时演练 Practice · 语法填空 + 翻译 语法填空 Fill in the blanks 1 It took the teacher a while to calm the excited class ______. 2 Even in great danger, the pilot acted ______ (calm) and saved everyone. 3 翻译 Translation 如果你在山里迷路，最重要的是保持镇静。 用法点拨 Tip calm 侧重 “不紧张、沉着”，calm down 表 “平静下来”，字母 l 不发音。 If you get lost in the mountains, the most important thing is to stay calm. down calmly calm 练习：先让学生独立完成填空，再核对答案，结合 “用法点拨” 强调易错点与得分点。 73 Unit 4 · Word 24 / 31 24 aid /eɪd/ n. & vt. n. 援助；帮助；救援物资　vt. & vi. 帮助；援助 例句 In Context 例句 A good dictionary is a great aid when you learn a language. （名词） Rescue workers gave first aid to the injured at once. 学习一门语言时，一本好词典是极大的帮助。 救援人员立即对伤者进行了急救。 讲解 aid：先正音（/eɪd/），再过词义。结合例句操练，重点关注教材原句的语境。 74 Unit 4 · Word 24 / 31 拓 aid 知识拓展 Word Formation & Collocations 高频搭配 Key Collocations with the aid / help of sb. 在某人的帮助下 first aid 急救 aid sb. in (doing) sth. 在某方面帮助某人 aid sb. to do sth. 帮助某人做某事 aid 拓展：先讲词性转换（构词法），再带搭配。提醒学生整理到笔记，搭配是写作与完形的高频考点。 75 Unit 4 · Word 24 / 31 练 aid 即时演练 Practice · 语法填空 + 翻译 语法填空 Fill in the blanks 1 With the ______ of a good map, the hikers found the path again. 2 Every teacher here is trained to give first ______ in an emergency. 3 翻译 Translation 借助一些急救知识，他救了那位老人的命。 用法点拨 Tip first aid（急救）为固定搭配；aid 作动词时常用 aid sb. to do / in doing。 aid aid With some first aid knowledge, he saved the old man's life. aid 练习：先让学生独立完成填空，再核对答案，结合 “用法点拨” 强调易错点与得分点。 76 04 SECTION Response & Effect 应对与影响 本节单词 on hand crash sweep away strike deliver summary effect 进入第 04 部分：应对与影响。先整体认读本节单词，再逐词精讲。 77 Unit 4 · Word 25 / 31 25 on hand /ɒn hænd/ phr. 现有（尤指帮助）；在手头；在场，到场 例句 In Context 例句 Rescue workers were on hand to help the moment the flood hit. Several experienced doctors were on hand to give advice. 洪水一来，救援人员就在现场提供帮助。 几位经验丰富的医生到场提供建议。 讲解 on hand：先正音（/ɒn hænd/），再过词义。结合例句操练，重点关注教材原句的语境。 78 Unit 4 · Word 25 / 31 拓 on hand 知识拓展 Word Formation & Collocations 高频搭配 Key Collocations on hand 现有；在场（尤指帮助） in hand 在掌控中；在进行中 at hand 在手边；即将到来 on hand 拓展：先讲词性转换（构词法），再带搭配。提醒学生整理到笔记，搭配是写作与完形的高频考点。 79 Unit 4 · Word 25 / 31 练 on hand 即时演练 Practice · 单句语法填空 语法填空 Fill in the blanks 1 Doctors and nurses were ______ hand to help the injured passengers. 2 Don't worry about the future; just keep the task ______ hand under control. 3 With the holiday close ______ hand, the children grew excited. 用法点拨 Tip 辨析：on hand 侧重 “在场、现有”；in hand 侧重 “掌控中、进行中”。 on in at on hand 练习：先让学生独立完成填空，再核对答案，结合 “用法点拨” 强调易错点与得分点。 80 Unit 4 · Word 26 / 31 26 crash /kræʃ/ v. & n. v. 碰撞；撞击；坠毁　n. 撞车；碰撞；坠毁 例句 In Context 例句 The car crashed into a wall and caught fire in seconds. Many people were hurt in the terrible bus crash. 图解助记 · Visual cue 汽车撞上一堵墙，几秒钟内就着了火。 在那场可怕的公交车撞车事故中，许多人受了伤。 讲解 crash：先正音（/kræʃ/），再过词义。结合例句操练，重点关注教材原句的语境。 81 Unit 4 · Word 26 / 31 拓 crash 知识拓展 Word Formation & Collocations 高频搭配 Key Collocations crash into … 碰撞…… a plane / car crash 飞机 / 汽车失事 crash one's car 撞坏某人的车 crash 拓展：先讲词性转换（构词法），再带搭配。提醒学生整理到笔记，搭配是写作与完形的高频考点。 82 Unit 4 · Word 26 / 31 练 crash 即时演练 Practice · 单句语法填空 语法填空 Fill in the blanks 1 The bus ______ (crash) into a tree and several people were hurt. 2 A number of passengers were injured in the train ______. (名词) 3 The plane ______ (crash) shortly after it took off in the storm. 用法点拨 Tip crash into 表 “撞上……”；crash 既可作动词也可作名词，指 “撞击 / 坠毁”。 crashed crash crashed crash 练习：先让学生独立完成填空，再核对答案，结合 “用法点拨” 强调易错点与得分点。 83 Unit 4 · Word 27 / 31 27 sweep away /swiːp əˈweɪ/ phr. 消灭；彻底消除；冲走，刮走 例句 In Context 例句 The powerful flood swept away dozens of houses near the river. A fresh way of thinking can sweep aside old fears. 汹涌的洪水冲走了河边的数十座房屋。 一种全新的思维方式能扫除旧有的恐惧。 讲解 sweep away：先正音（/swiːp əˈweɪ/），再过词义。结合例句操练，重点关注教材原句的语境。 84 Unit 4 · Word 27 / 31 拓 sweep away 知识拓展 Word Formation & Collocations 高频搭配 Key Collocations sweep away 扫除；冲走；清除 sweep up 打扫；清扫 sweep out 打扫干净；收拾干净 sweep aside 对……置之不理 sweep away 拓展：先讲词性转换（构词法），再带搭配。提醒学生整理到笔记，搭配是写作与完形的高频考点。 85 Unit 4 · Word 27 / 31 练 sweep away 即时演练 Practice · 语法填空 + 翻译 语法填空 Fill in the blanks 1 The huge waves swept ______ everything that stood on the beach. 2 After the storm, the children helped to sweep ______ the broken glass. 3 翻译 Translation 汹涌的洪水冲走了河边的许多房屋。 用法点拨 Tip sweep 的过去式、过去分词为 swept；注意 sweep away / up / out / aside 的不同含义。 The powerful flood swept away many houses near the river. up away sweep away 练习：先让学生独立完成填空，再核对答案，结合 “用法点拨” 强调易错点与得分点。 86 Unit 4 · Word 28 / 31 28 strike /straɪk/ v. & n. v. 打；撞击；（灾害）突然降临；打动；敲响　n. 罢工 例句 In Context 例句 Last week a strong typhoon struck the southern coast. （突然想到） A bright idea struck her while she was walking home. 上周一场强台风袭击了南部沿海地区。 她走在回家路上时，突然想到了一个好主意。 讲解 strike：先正音（/straɪk/），再过词义。结合例句操练，重点关注教材原句的语境。 87 Unit 4 · Word 28 / 31 拓 strike 知识拓展 Word Formation & Collocations 词性转换 Forms striking adj. 惊人的，引人注意的 stricken adj. 受灾的 （earthquake-stricken） 高频搭配 Key Collocations It strikes / occurs to sb. that … 某人突然想到…… be struck by 被……打动；遭受 be on strike 在罢工 the earthquake-stricken area 地震灾区 strike 拓展：先讲词性转换（构词法），再带搭配。提醒学生整理到笔记，搭配是写作与完形的高频考点。 88 Unit 4 · Word 28 / 31 练 strike 即时演练 Practice · 单句语法填空 语法填空 Fill in the blanks 1 The workers were ______ strike for higher pay and shorter hours. 2 He showed us some ______ (strike) photos that left us speechless. 3 Last week a powerful storm ______ (strike) the southern coast. (过去式) 用法点拨 Tip 难点：strike 一词多义（打击 / 灾害降临 / 想到 / 敲响 / 罢工），需结合语境判断。 on striking struck strike 练习：先让学生独立完成填空，再核对答案，结合 “用法点拨” 强调易错点与得分点。 89 Unit 4 · Word 29 / 31 29 deliver /dɪˈlɪvə(r)/ vt. 递送；传达；发表（演说）；助产，接生 例句 In Context 例句 The postman delivers letters to our street every morning. （发表） The president will deliver an important speech tonight. 图解助记 · Visual cue 邮递员每天早上把信送到我们这条街。 总统今晚将发表一篇重要演讲。 讲解 deliver：先正音（/dɪˈlɪvə(r)/），再过词义。结合例句操练，重点关注教材原句的语境。 90 Unit 4 · Word 29 / 31 拓 deliver 知识拓展 Word Formation & Collocations 词性转换 Forms delivery n. 投递，交付 高频搭配 Key Collocations deliver sth. to sb. 投递 / 传送某物给某人 deliver a speech / a lecture 发表演说 / 演讲 be delivered of a baby 生孩子（= give birth to） special / express delivery 快递 deliver 拓展：先讲词性转换（构词法），再带搭配。提醒学生整理到笔记，搭配是写作与完形的高频考点。 91 Unit 4 · Word 29 / 31 练 deliver 即时演练 Practice · 单句语法填空 语法填空 Fill in the blanks 1 The courier ______ (deliver) the package to her office this morning. 2 She was delivered ______ a healthy baby boy early this morning. 3 The mayor will ______ (deliver) a speech at the opening ceremony. delivered of deliver deliver 练习：先让学生独立完成填空，再核对答案，结合 “用法点拨” 强调易错点与得分点。 92 Unit 4 · Word 30 / 31 30 summary /ˈsʌməri/ n. 总结；概括；概要 例句 In Context 例句 At the end of the report, he gave a short summary of the main points. Could you summarize the story in just a few sentences? 在报告的结尾，他对要点做了简短的总结。 你能用几句话概括一下这个故事吗？ 讲解 summary：先正音（/ˈsʌməri/），再过词义。结合例句操练，重点关注教材原句的语境。 93 Unit 4 · Word 30 / 31 拓 summary 知识拓展 Word Formation & Collocations 词性转换 Forms summarize vt./vi. 总结；概括 高频搭配 Key Collocations in summary / in short 总之 a summary of … ……的概要 to summarize 概括地说 summary 拓展：先讲词性转换（构词法），再带搭配。提醒学生整理到笔记，搭配是写作与完形的高频考点。 94 Unit 4 · Word 30 / 31 练 summary 即时演练 Practice · 语法填空 + 翻译 语法填空 Fill in the blanks 1 At the end of class, the teacher gave a short ______ of the lesson. 2 In the exam you may be asked to ______ (summary) a long passage. 3 翻译 Translation 在报告的结尾，他对要点做了简短的总结。 At the end of the report, he gave a short summary of the main points. summary summarize summary 练习：先让学生独立完成填空，再核对答案，结合 “用法点拨” 强调易错点与得分点。 95 Unit 4 · Word 31 / 31 31 effect /ɪˈfekt/ n. 影响；结果；效果 例句 In Context 例句 Regular exercise has a positive effect on your mood. We must find out whether the new medicine has any side effect. 经常锻炼对你的情绪有积极的影响。 我们必须弄清这种新药是否有副作用。 讲解 effect：先正音（/ɪˈfekt/），再过词义。结合例句操练，重点关注教材原句的语境。 96 Unit 4 · Word 31 / 31 拓 effect 知识拓展 Word Formation & Collocations 词性转换 Forms effective adj. 有效的；实际的 effectively adv. 有效地；实际上 高频搭配 Key Collocations have an effect on 对……有影响 side effect 副作用 come into effect 开始实施；生效 in effect 事实上，实际上 effect 拓展：先讲词性转换（构词法），再带搭配。提醒学生整理到笔记，搭配是写作与完形的高频考点。 97 Unit 4 · Word 31 / 31 练 effect 即时演练 Practice · 语法填空 + 翻译 语法填空 Fill in the blanks 1 The ban on plastic bags will come into ______ from next year. 2 Their new method of saving energy proved very ______ (effect). 3 翻译 Translation 缺乏睡眠会对你的学习产生很大的影响。 A lack of sleep can have a big effect on your study. effect effective effect 练习：先让学生独立完成填空，再核对答案，结合 “用法点拨” 强调易错点与得分点。 98 Review & Take-aways 本课小结 · 复习要点 1 辨析高频考点 affect / effect、damage / destroy / ruin、breath / breathe、on hand / in hand 2 虚拟语气 as if 从句的时态比实际 “早一个时态”，表不真实时用虚拟 3 一词多义 strike、deliver、power、supply 等结合语境判断词义 4 搭配与构词 -tion / -ous / -ful / -al 等后缀转换，配套高频短语整理入笔记 Keep calm and keep going — 自然灾害无情，语言学习有方。 收尾：回顾四大类高频考点，布置课后任务——整理词性转换表与高频搭配，并完成配套练习。 99 $