Unit 4 课时6 Section B Vocabulary in Use(大单元教学课件)英语新教材人教版九年级上册

2026-08-17
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摘要:

该初中英语课件聚焦词缀法构词规则及词汇运用,通过Lead-in环节提问前缀、后缀、词根概念,结合“猫咪记忆”视频引发兴趣,再以2a任务引导学生用词典生成新单词(如forget→forgetful/unforgettable),搭建从词根到词缀组合的学习支架,衔接后续词汇运用练习。 其亮点在于系统化词缀教学,通过表格、思维导图(如forget的词缀分支)帮助学生构建知识网络,培养学习能力;情境化词汇运用(如2b句子填空、2c动物记忆语篇)结合“观点+实例”结构,提升语言能力。采用任务型教学和分层作业,学生能高效掌握词汇,教师可借助多样化活动设计提升教学效果。

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Unit 4 Our Memory 人教版2024版九年级上册 Section B (Vocabulary in Use ) 词汇课 Learning Objectives 1. 学生能够借助词缀法拆解、生成新单词,理解 re-、-ion、-ive、-or、-ful、-able、-ness、un-、-ive、-ly、-ness 等词缀的构词规律;能够结合单句与短文语境,理解单词及短语的含义与用法。 2. 学生能够依托句子逻辑、篇章上下文,正确变换单词形式完成填空练习;在小组交流中,能够结合语境说明词形变化、短语选用的理由,增强语境分析与词汇灵活变形的能力。 3. 学生能够借鉴语篇 “观点 + 实例” 的行文结构,灵活运用本课词缀衍生词汇、核心单词与短语,围绕记忆方法、动物记忆等主题组织语段表达,完成词汇从识别理解、习题运用到自主书面输出的转化。 01 02 03 Lead-in What is a prefix? What is a suffix? What is a root word? What is the video about? In the video, how does he change a word to make it mean differently? Memorizing words with affixes. /ˈæfɪks/ progress gradual prefix suffix root 2a Use affixes to create as many new words as possible. Use your dictionary. root act, forget, effect prefix re-, un- suffix -ion, -ive, -or, -ful, able, -ness, -ly /ˈæfɪksɪz/词缀 react action active actor 动词(v.)反应;回应 名词(n.)行动;动作;行为 形容词(adj.)积极的;活跃的 名词(n.)演员 (常指男演员,也可泛指演员) 2a Use affixes to create as many new words as possible. Use your dictionary. forgetful forgettable forgetfulness unforgettable 形容词(adj.),健忘的 形容词(adj.),容易被忘记的 名词(n.),健忘 形容词(adj.),难忘的 effective effectively effectiveness 形容词(adj.),有效的 副词(adv.),有效地 名词(n.),有效性 总结:一个单词可含多个词缀 1.unforgettable = 前缀 un- + 词根 forget + 后缀 -able 2.forgetfulness = 词根 forget + 后缀 -ful(变adj.)+ 后缀 -ness(变n.) 一、含前缀的单词(前缀改变意思) 1.react re- 再次 (act→“做”,react→“回做”,即反应) 2.unforgettable un- 不、未 (forgettable→“可被忘记的”, 加un→“不会被忘记的”,即难忘的) 二、含后缀的单词 1.名词后缀(变成名词) 单词 后缀 说明 action -ion 表示“行为、状态”(act + ion → 行动) actor -or 表示“做……的人”(act + or → 演员) forgetfulness -ness 表示“性质、状态”(forgetful + ness → 健忘,名词) effectiveness -ness 表示“性质、状态”(effective + ness → 有效性) 2. 形容词后缀(变成形容词) 单词 后缀 说明 active -ive 表示“有……性质的”(act + ive → 活跃的) effective -ive 表示“有……作用的”(effect + ive → 有效的) forgetful -ful 表示“充满……的、容易……的”(forget + ful → 健忘的) forgettable -able 表示“可被…的”(forget + able → 容易被忘记的) 3. 副词后缀(变成副词) 单词 后缀 说明 effectively -ly 表示“……地”(effective + ly → 有效地) Prefix Word Class It Attaches To Meaning Example re- verbs again, once more act → react un- adjectives not, the opposite of forgettable → unforgettable How much do you know about these affixes? Challenge: Create More Words! re- un- write → rewrite turn → return use → reuse start → restart view → review act → react happy → unhappy fair → unfair able → unable forgettable → unforgettable kind → unkind true → untrue Suffix Word Class Shift (Original → New) Meaning Example -ion verb → noun the action, state or result of an action act → action -ive verb/noun → adjective having the quality of; tending to act → active; effect → effective -or verb → noun person or thing that performs the action act → actor -ful noun/verb → adjective full of; having a lot of forget → forgetful -able verb → adjective able to be; fit to be forget → forgettable -ness adjective → noun a state or quality forgetful → forgetfulness; effective → effectiveness -ly adjective → adverb in a ... way effective → effectively How much do you know about these affixes? -ion/-ness是名词 -ful/-able/-ive是形容词 -ly一加变副词 2b Complete the sentences with the correct forms of the words from the word cloud. address likely react position case effective 1.The customer _____ badly to the price increase. 2.Starting over is not easy, but it is necessary in my _____. 3.His memory technique is simple but __________. 4.The man has lost a lot of blood. He is _______ to die from his wounds if not treated at once. reacted case effective likely 不及物动词,常搭配介词 to,表示 “对……作出反应”。 表示 “情况;状况”,固定搭配in one’s case意为 “就某人的情况而言”。 表示 “有效的”,在句中作表语/定语,与but前的simple构成转折。 固定搭配be likely to do sth表示 “很可能做某事”。 帮助学生运用目标词汇的正确形式(含词性、时态等变化)完成句子,巩固词汇的语境运用能力。 2b Complete the sentences with the correct forms of the words from the word cloud. address likely react position case effective 5.Our hotel is in a great _______ near the central mall. 6.I can’t recall which notebook I wrote your email _______in. position address 表示 “位置”,句中 “in a great position” 指 “处于好的位置”。 表示 “地址”,此处email address是固定搭配,指 “电子邮箱地址” 帮助学生运用目标词汇的正确形式(含词性、时态等变化)完成句子,巩固词汇的语境运用能力。 Do you think animals have good long‑term memories? What do you think animals should keep in mind to live? Let’s watch a video. 2c Complete the passage with the correct forms of the phrases in the box. Which animal impressed you the most? go through run out happen to keep in mind Research shows that many animals have good long-term memories. They ___________ where food can be found and where it is safe. For example, when squirrels __________ of food, they go straight to the place where they hid nuts. Every autumn, wild geese fly thousands of kilometres south for the winter. Humans do not know for sure what __________ their minds during the journey, but wild geese seldom get lost. A similar situation __________ dolphins. They can recognize voices of other dolphins—even when they have not met each other for a long time. keep in mind run out goes through happens to run out of + 宾语(注意:run out 本身是不及物短语,后不能直接接宾语,需加of) happen to + 名词/代词(表示“某事发生在某人/物身上”) what 作主语时,谓语动词用第三人称单数形式 What main idea does the passage tell us ? Many animals have good long-term memories. What can we learn from these animals ? Animals have wonderful memories. We should observe and respect nature and all animals. Thinking Do you know any other animals with good memories? What are they? Learn 乌鸦 Crow 乌鸦是鸟类中的记忆大师。它们不仅能记住食物的藏匿地点,甚至还能记住人类的面孔。研究表明,乌鸦可以区分对它们友好或有威胁的人类,并将这种记忆保留多年。它们还会使用和制作工具,展现了惊人的认知和记忆能力。 章鱼 Octopus 章鱼拥有无脊椎动物中最复杂的大脑,其记忆力也令人惊叹。它们能快速学习并记住如何解决迷宫问题,甚至能记住捕捉它们的人类的样貌。章鱼还会使用工具,比如用椰子壳作为庇护所,这需要强大的空间记忆和规划能力。 Learn 黑猩猩 Chimpanzee 黑猩猩拥有优秀长期记忆,能记住同伴身份、食物分布位置,还可以记住复杂符号,拥有很强情景记忆能力。 Learn 鹦鹉 Parrot 鹦鹉拥有优秀听觉记忆,长久记住声音、语言;能识别同伴与主人,拥有持久的识别记忆。 Learn 海狮 Sea lion 海狮的长期记忆十分突出, 经过训练的技能可以保持十几年,能够分辨不同同伴的声音信号。 狗 Dog 狗狗可以记住主人、熟悉的路线;长期分辨人的情绪,拥有持久的情感记忆。 Learn 1.He is likely to die from his wounds if not treated at once. 如果不立即治疗,他很可能会因伤口而死亡。 be likely to do sth是固定句式,意为“很可能做某事”, likely 为形容词,可用于人或物作主语的句子,其程度由 very 、 quite 等副词修饰。 常见例句:  It is likely to snow tomorrow morning. (明天早上很可能会下雪。) Language Points 2.They keep in mind where food can be found and where it is safe. 它们记住哪里能找到食物、哪里食物是安全的。  keep in mind 为动词短语,意为“记住”,后可接名词、代词或宾语从句,否定形式为 keep sth out of mind (忘记)。 常见例句: You should keep in mind that honesty is the best policy. (你应该记住诚实是上策。) 3.when squirrels run out of food 当松鼠吃完食物时 run out of 意为“用完;耗尽”,主语通常是人,后接宾语; run out 为不及物动词短语,主语为物,表“被用完”,无被动形式 。 常见例句: The petrol in the car has run out.(车里的汽油用完了。) 4.Humans do not know for sure what goes through their minds during the journey... 人类并不确定它们在迁徙途中脑海中经历了什么......  go through 为多义动词短语,此处意为“(想法、感受)在脑海中闪过;经历”,还可表示“穿过;仔细检查;通过”,主语可为人或物。 常见例句: The teacher went through the students’ homework carefully.(老师仔细检查了学生的作业。) 5.A similar situation happens to dolphins. 类似的情况也发生在海豚身上。 happen to sb/sth意为“发生在某人/某物身上”; happen to do sth 意为“碰巧做某事”, happen 为不及物动词,无被动形式。 常见例句: What happened to your phone? It doesn’t work. (你的手机怎么了?它坏了。) Summary Key words increase;wild,blood,wound,mall,notebook, squirrel,nut,dolphin,recognize Expressions die of,at once,go through,run out,happen to,keep in mind Sentences 1.Starting over is not easy,but it is necessary in my case. 2.He is likely to die of wounds if nottreated at once. go through         碰巧;适用于 run out          记住 happen to         耗尽,用完 keep in mind         经历;仔细思索 cute squirrels     聪明的海豚 wild geese     可爱的松鼠 clever dolphins     大雁 /ˈskwɪrəlz/ /ɡiːs/ 单 goose /ˈdɒlfɪnz/ 自我检测 一、用括号内所给词的适当形式填空。 1. When he heard the bad news, he ________ (react) to it in a quiet way. 2. This kind of medicine is ________ (effect) for people with colds. 3. If people are not treated in time, they may ________ (death) of serious wounds. 4. He was disappointed that his best friend didn't ________ (act) to his wedding invitation for weeks. 5. The kindness of the local people during our trip made the journey truly ________ (forget). reacted effective die react unforgettable 自我检测 Homework 基础作业(所有学生) 熟记 4 组词根 + 前后缀变形(act/forget/effect/hope), 抄写单词 + 释义 提升作业(中等及以上) 自主整理 3 组新的 “前缀 + 词根 + 后缀” 单词 (如 un- + fair + -ness → unfairness) 拓展作业(学有余力) 搜集 5 个带 -ive /-able/-ness 的课外单词,标注词根、词缀、词义 Lavf58.29.100 Packed by Bilibili XCoder v2.0.2 $

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Unit 4 课时6 Section B Vocabulary in Use(大单元教学课件)英语新教材人教版九年级上册
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Unit 4 课时6 Section B Vocabulary in Use(大单元教学课件)英语新教材人教版九年级上册
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Unit 4 课时6 Section B Vocabulary in Use(大单元教学课件)英语新教材人教版九年级上册
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Unit 4 课时6 Section B Vocabulary in Use(大单元教学课件)英语新教材人教版九年级上册
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Unit 4 课时6 Section B Vocabulary in Use(大单元教学课件)英语新教材人教版九年级上册
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Unit 4 课时6 Section B Vocabulary in Use(大单元教学课件)英语新教材人教版九年级上册
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