Unit 8 词汇&短语精讲课件2025-2026学年沪教版英语八年级下册

该初中英语单元复习课件系统梳理了Lesson 15核心词汇（如mention、frightened等9个单词）和短语（如because of、agree with等4个短语），通过词族拓展、搭配归纳、易混词对比等方式构建知识网络，串联词性、用法及语境应用，帮助学生形成完整的词汇短语体系。 其亮点在于融合“free talk问题链”激发思维品质，如探讨“探索未知世界的挑战”培养分析能力，设计分层练习（基础填空、短语选择、完形填空）适配不同水平学生，助力语言能力提升。这种设计既巩固知识又培养学习策略，为教师提供精准复习抓手，提升教学效率。

Abby Lesson 15 Imagine that! vocabulary & phrases 01. warming up free talk Think Could there be life on other planets? How can people survive in the unknown world? How do people deal with challenges when exploring the unknown world? How do science fiction authors imagine possible futures? 词汇拓展 I don’t think that’s true. – 我认为那不是真的。 I don’t think so either. – 我也不这么认为。 But I do believe that ... – 但我的确相信…… 02. Key words Vocabulary New words 1 Key word mention v. 提到；说到 Examples The old man mentioned a strange creature in his story tonight. Word family & examples mention v.__________________ Our teacher mentioned the camping trip at the beginning of class. mention doing sth._________________ She mentioned helping lost animals in her speech. mention sth. to sb.___________________ Please mention this plan to your parents tonight. Don't mention it._________________ He smiled and said, "Don't mention it." 提到；说到 提到做某事 向某人提到某事 别客气；不用谢 Collocation mention: Useful phrases mention a name/problem 提到名字/问题 The guide mentioned a bright light in the sky. not to mention 更不用说 The trip is expensive, not to mention dangerous. mention doing sth. 提到做某事 She mentioned helping lost animals in her speech. Compare 易混辨析: mention / refer to / talk about mention 强调“顺带提到、说起”。 The guide mentioned a bright light in the sky. refer to 较正式，常用于书面表达，表示“提及；涉及”。 The report referred to an emergency landing. talk about 侧重“谈论、展开说”。 The children talked about the strange cave for a long time. Practice mention: Word practice 1. Please __________ my idea when you speak to the monitor. 2. He never __________ saying sorry yesterday. 3. Not to __________ the cost, the trip is also dangerous. 【答案】 1. mention 2. mentioned 3. mention Vocabulary New words 2 Key word frightened adj. 受惊的；害怕的 Examples The little girl felt frightened when the tent moved at night. Word family & examples frightened adj._____________________ The children were frightened by the loud cough outside. frighten v. _________________ The sudden sound frightened the dog away. frightening adj.________________ That was a frightening story about a dark forest. frightened face/look__________________ Her frightened face showed that she was still in fear. 受惊的；害怕的 使害怕；使惊吓 令人害怕的 惊恐的表情/神色 Collocation frightened: Useful phrases be frightened of 害怕…… The little child is frightened of sleeping alone. be frightened to do sth. 害怕做某事 The child was frightened to go near the cave. frighten sb. away/off 把某人吓跑 The barking dog may frighten the birds away. Compare 易混辨析: frightened / afraid / scared frightened 强调“受惊后的状态”。 She felt frightened when she heard the strange cry. afraid 最常见，既可表示害怕，也可用于委婉表达。 I am afraid of snakes. scared 口语色彩更明显，意思和 frightened 很接近。 The child looked scared in the dark. Practice frightened: Word practice 1. The twins were __________ by the strange noise. 2. The barking dog may __________ the birds away. 3. It was a __________ dream for the little boy. 【答案】 1. frightened 2. frighten 3. frightening Vocabulary New words 3 Key word fear n. 害怕；惧怕；v. 害怕；担心 Examples The children ran back in fear when they heard a cry in the cave. Word family & examples fear n._______________ Many students have a fear of speaking in public. fear v.______________ I fear that the weather may change suddenly tonight. fearful adj.________________ The climbers looked fearful after the accident. fearless adj.____________ A fearless person can still stay calm in an emergency. 害怕；惧怕 担心；害怕 害怕的；可怕的 无畏的 Collocation fear: Useful phrases in fear 恐惧地 The kids ran away in fear. fear doing sth. 害怕做某事 Some students fear speaking English in public. fear for sb./sth. 为……担心 We all feared for the lost child last night. Compare 易混辨析: fear / be afraid of / worry about fear 可作名词或动词，语气较正式。 The kids ran away in fear. be afraid of 日常表达最常见。 I am afraid of the dark. worry about 更强调“担心、忧虑”，不一定带强烈恐惧。 Parents often worry about their children. Practice fear: Word practice 1. He looked around in __________ after hearing the sound. 2. Some students __________ speaking English in public. 3. We all __________ for the lost child last night. 【答案】 1. fear 2. fear 3. feared Vocabulary New words 4 Key word refuse v. 拒绝；回绝 Examples Tom refused to leave the cave because he wanted to help his friend. Word family & examples refuse v.____________ She refused the invitation because she had a sore throat. refuse to do sth._______________ The boy refused to keep quiet during the show. refusal n._____________ His refusal surprised everyone in the room. firm adj.________________ The workers were polite but firm in their decision. 拒绝；回绝 拒绝做某事 拒绝 坚定的；坚决的 Collocation refuse: Useful phrases refuse an invitation/request 拒绝邀请/请求 She refused the invitation because she had a sore throat. refuse to answer/go/help 拒绝回答/去/帮忙 The boy refused to keep quiet during the show. a polite refusal 礼貌的拒绝 His refusal surprised everyone in the room. Compare 易混辨析: refuse / reject / deny refuse 强调主动拒绝去做某事。 She refused to tell a lie. reject 侧重“拒绝接受”，语气更正式。 The school rejected the unsafe plan. deny 表示“否认”，不是一般意义上的拒绝。 He denied taking the camera. Practice refuse: Word practice 1. Jack __________ to open the box at once. 2. Her __________ made the others a little disappointed. 3. He is too honest to __________ the truth. 【答案】 1. refused 2. refusal 3. deny Vocabulary New words 5 Key word emergency n. 紧急情况；突发事件 Examples In an emergency, we should stay calm and call for help at once. Word family & examples emergency n._______________ The hospital is ready for any emergency at night. emergency exit _______________ We found the emergency exit near the back door. emergency workers/services _________________ Emergency workers arrived very quickly. in case of emergency ________________ Keep this number in case of emergency. 紧急情况 紧急出口 应急人员/应急服务 如遇紧急情况 Collocation emergency: Useful phrases in an emergency 在紧急情况下 In an emergency, we should stay calm and call for help at once. call the emergency number 拨打急救/报警电话 Please call the emergency number at once. emergency treatment/help 紧急治疗/援助 The injured child needed emergency treatment. Practice emergency: Word practice 1. We must know what to do in an __________. 2. Please do not stand near the emergency __________. 3. The school practises fire drills in case of __________. 【答案】 1. emergency 2. exit 3. emergency Vocabulary New words 6 Key word unnecessary adj. 不需要的；不必要的；多余的 Examples It is unnecessary to bring three cameras on a short trip. Word family & examples unnecessary adj._________________ These extra bags are unnecessary for one night in the tent. necessary adj. __________________ It is necessary to keep quiet during the test. unnecessarily adv. ________________ She worried unnecessarily about a small mistake. necessarily adv. _______________ Success does not necessarily come quickly. 不必要的；多余的 必要的 不必要地 必然地；一定 Collocation unnecessary: Useful phrases it is unnecessary to do sth. 做某事没有必要 It is unnecessary to argue about such a small thing. unnecessary trouble/worry 不必要的麻烦/担心 Please do not cause unnecessary trouble. necessary for sb. to do sth. 对某人来说做某事是必要的 It is necessary for us to keep quiet. Compare 易混辨析: unnecessary / needless / useless unnecessary 强调“没有必要”。 It is unnecessary to argue about such a small thing. needless 书面语色彩较强，也表示“没有必要”。 The long talk was needless. useless 强调“没有用处”，不完全等于 unnecessary。 This broken rope is useless now. Practice unnecessary: Word practice 1. It is __________ to take so many clothes for one evening. 2. The guide said it was __________ to bring water and food. 3. She spent money __________ on things she did not need. 【答案】 1. unnecessary 2. necessary 3. unnecessarily Vocabulary New words 7 Key word disappoint v. 使失望 Examples I do not want to disappoint my team after all our hard work. Word family & examples disappoint v._____________ The final result disappointed many students. disappointed adj._____________ We were disappointed with the weather. disappointing adj._________________ It was a disappointing ending to the story. disappointment n.____________ To our disappointment, the show was cancelled. 使失望 失望的 令人失望的 失望 Collocation disappoint: Useful phrases disappoint sb. 使某人失望 I hope I will not disappoint my parents. be disappointed with/in 对……感到失望 We were disappointed with the poor result. to one's disappointment 令某人失望的是 To my disappointment, nobody mentioned the problem. Compare 易混辨析: disappoint / let down disappoint 强调“让别人失望”。 I hope I will not disappoint my parents. let down 更口语化，常表示“让人失望、辜负”。 The bad news really let me down. Practice disappoint: Word practice 1. Do not __________ your friends again. 2. We felt __________ with the poor result. 3. To my __________, nobody mentioned the problem. 【答案】 1. disappoint 2. disappointed 3. disappointment Vocabulary New words 8 Key word argue v. 争吵；争辩 Examples The two boys began to argue about the best way out of the forest. Word family & examples argue v.___________________ They often argue with each other about small things. argument n.________________ Their argument lasted for ten minutes. argue that…________________ Some people argue that children need more outdoor time. argue for/against_________________ The lawyer argued for a fairer rule. 争吵；争辩 争论；争吵 主张；认为 赞成/反对……而辩论 Collocation argue: Useful phrases argue with sb. 和某人争吵 They often argue with each other about small things. argue about/over sth. 争论某事 The brothers argued about the camera. have an argument with sb. 与某人发生争执 He had an argument with his brother. Compare 易混辨析: argue / discuss / quarrel argue 既可表示争吵，也可表示争辩。 The boys argued about the landing site. discuss 侧重理性讨论，不带明显冲突。 We discussed the problem calmly. quarrel 更强调口角和不愉快的争执。 The neighbours quarrelled loudly last night. Practice argue: Word practice 1. Do not __________ with your parents over small things. 2. Their __________ was caused by a misunderstanding. 3. Many teachers __________ that reading aloud is useful. 【答案】 1. argue 2. argument 3. argue Vocabulary New words 9 Key word backward adv. 向反方向；倒着；adj. 落后的 Examples The bear stepped backward when it saw the bright light. Word family & examples backward adv.________________ The car moved slowly backward near the tent. backward adj.___________ A backward village may need better roads and schools. backward and forward______________ The light moved backward and forward in the dark. 向后；倒着 落后的 来回地 Collocation backward: Useful phrases step backward 后退一步 Please take one step backward and keep safe. move/walk backward 向后移动/倒着走 The dog moved backward at once. look backward 回顾过去 We should not only look backward. Compare 易混辨析: backward / backwards / behind backward 可作副词，也可作形容词。 The dog moved backward at once. backwards 多作副词，和 backward 意思接近。 The boy jumped backwards into the room. behind 强调“在后面；落后于”，用法和 backward 不同。 The runner fell behind the others. Practice backward: Word practice 1. The cat suddenly moved __________ when it heard the cough. 2. We should not take a step __________ in our studies. 3. Some poor areas are still quite __________. 【答案】 1. backward 2. backward 3. backward Exercise Practice 1: 用所给词的正确形式填空 1. Please __________ the time of tomorrow's meeting. (mention) 2. The child looked __________ when the tree moved in the wind. (frighten) 3. Many people __________ speaking in front of others. (fear) 4. She __________ to answer the strange question. (refuse) 5. Call the teacher at once in an __________. (emergency) 6. It is __________ to take all these things with us. (necessary) 7. To my __________, the film ended too quickly. (disappoint) 8. The two brothers often __________ about their toys. (argument) 9. The driver moved __________ very carefully. (backward) 10. I do not know __________ he will come tonight. (whether) 【答案】 1. mention 2. frightened 3. fear 4. refused 5. emergency 6. unnecessary 7. disappointment 8. argue 9. backward 10. whether Exercise Practice 2: 选择正确词形或短语完成句子 1. We stayed inside the tent __________ the heavy rain. (because of / agree with) 2. I do not __________ your idea about going out so late. (agree with / speed up) 3. When the door opened, the birds flew __________. (in all directions / in fear of) 4. The car began to __________ when the road became clear. (speed up / mention) 5. Please __________ while the doctor is checking your throat. (keep quiet / backward) 6. The ugly creature in the story made the children feel __________. (frightened / unnecessary) 7. We brought a camera __________ we wanted to take photos of the lake. (because / because of) 8. They did not __________ the little boy; they only wanted him to be careful. (disappoint / frighten) 【答案】 1. because of 2. agree with 3. in all directions 4. speed up 5. keep quiet 6. frightened 7. because 8. frighten 03. Key phrases Phrases Phrase 1: because of Meaning because of 因为；由于 Patterns from the handout We stayed inside because of the sudden storm. The match was put off because of the heavy rain. because of +__________________ He coughed because he had a sore throat. because +________________ n./pron./doing 因为…… 句子 因为…… Phrases Phrase 2: agree with Meaning agree with 同意；和……意见一致 Patterns from the handout I agree with you that safety comes first. Most students agree with the new reading plan. agree with sb./an idea ___________________ He did not agree to stay out too late. agree to do sth. / agree to sth. _________________________ 同意某人/某个观点 同意做某事/同意某项安排 Phrases Phrase 3: in all directions Meaning in all directions 向四面八方 Patterns from the handout When the light appeared, the insects flew in all directions. The children looked around in all directions for the lost dog. look/run/spread in all directions _______________________ The crowd moved about in all directions after the bell rang. move about ______________ 朝四面八方看/跑/扩散 四处走动 Phrases Phrase 4: speed up Meaning speed up 加速 Patterns from the handout The train began to speed up after leaving the station. We need to speed up if we want to arrive before dark. speed up + n. / speed up _________________ The teacher asked us not to hurry but to work carefully. slow down _______________ 加快……；加速 减速；放慢 Phrases Phrase Compare: because of / because because of The trip was cancelled because of the storm. 后面接名词、代词或动名词。 because of + n. / pron. / doing because The trip was cancelled because it was stormy. 后面接完整句子。 because + 句子 Phrases Phrase Compare: agree with / agree to agree with I agree with your idea. 同意某人的意见、想法。 agree with sb. / an idea agree to They agreed to help us. 同意某事或同意去做某事。 agree to do sth. / agree to sth. Exercise Practice 3: 根据中文提示完成句子 1. 由于大雨，我们今晚待在帐篷里。 We stayed in the tent __________ __________ the heavy rain tonight. 2. 我同意你关于安全的看法。 I __________ __________ you about safety. 3. 听到咳嗽声后，孩子们向四面八方跑开了。 After hearing the cough, the children ran __________ __________ __________. 4. 火车过桥后开始加速。 The train began to __________ __________ after crossing the bridge. 5. 你没有必要因为一次争吵而失望。 It is __________ for you to feel disappointed because of one argument. 6. 遇到紧急情况时，请保持安静。 Please __________ __________ in an emergency. 【答案】 1. because of 2. agree with 3. in all directions 4. speed up 5. unnecessary 6. keep quiet Review Integrated Practice: 完形填空 阅读下面短文，从短文后所给的 A、B、C、D 四个选项中选出能填入相应空白处的最佳选项。 Last Saturday, our class went camping near a lake. Before we left, our teacher ______1______ that we should keep quiet and stay together. At first, everyone felt excited, but one little boy became ______2______ when he heard a strange sound behind the trees. Soon we found out that it was only a bird, so there was no need to feel so much ______3______. Later, one student wanted to run into the forest, but the teacher ______4______ to let him go alone. She said it might be dangerous in an ______5______. After dinner, the wind grew strong. Some papers flew ______6______, and we had to hold the tent tightly. Because of the dark sky, we packed up quickly and began to ______7______ our work. Although the trip ended earlier than we expected, it was not a(n) ______8______ day. We learned that it was ______9______ to ignore safety rules, and we should never ______10______ with the teacher when he is trying to protect us. Options A. mentioned B. disagreed C. delivered D. pointed 2. A. backward B. frightened C. necessary D. quiet 3. A. fear B. pleasure C. speed D. service 4. A. agreed B. wanted C. refused D. learned 5. A. direction B. emergency C. argument D. question 6. A. in all directions B. by mistake C. at first D. on time 7. A. speed up B. take off C. keep out D. grow up 8. A. disappointing B. backward C. ugly D. crazy 9. A. safe B. unnecessary C. impossible D. wrong 10. A. argue B. mention C. cough D. fear Answers: 1. A 2. B 3. A 4. C 5. B 6. A 7. A 8. A 9. D 10. A Imagine, stay calm, and choose wisely See you next time $