Unit 8--第1课时 （内文）-【学导练】2026年八年级下册英语课件PPT（沪教版）

该初中英语课件聚焦八年级下册Unit 8“地球与宇宙探索”主题词汇，系统讲解frightened、fear、refuse等8个核心词汇，通过词性辨析、搭配示例及情境例句（如宇航员探索火星、外星信号等）搭建学习支架，帮助学生从词汇理解过渡到实际应用。 其亮点在于以宇宙探索情境串联词汇教学，通过frightened与frightening的对比辨析培养思维品质，结合填空、完形填空等分层练习提升语言能力，助力学生掌握词汇学习策略。学生能在主题情境中深化理解，教师可直接利用系统讲解与练习提升教学效率。

英语 八年级 下册 配上海教育版 返回目录 英语 八年级 下册 配上海教育版 Unit 8 Imagine that! 返回目录 英语 八年级 下册 配上海教育版 第1课时 Vocabulary 返回目录 英语 八年级 下册 配上海教育版 目 录 CONTENTS 01 要点精讲 02 课堂练习 返回目录 英语 八年级 下册 配上海教育版 要点精讲 frightened 返回目录 英语 八年级 下册 配上海教育版 Some scientists are not frightened of exploring the unknown parts of Mars. 一些科学家不害怕探索火星的未知区域。 The sudden flash of light in space frightened the astronauts. 太空中突然闪过的一道光惊吓到了宇航员们。 Diving in water was a frightening experience for me. 在水里潜水对我来说是一次可怕的经历。 The little boy was frightened to look up at the strange flying object in the sky. 这个小男孩害怕抬头看天空中那个奇怪的飞行物。 返回目录 英语 八年级 下册 配上海教育版 1. Taking planes all by myself used to __________________ (frightened) me. (　　)2. The _____ sound from the dark side of the Moon made the astronauts feel a little _____. A. frightened; frightening B. frightening; frightened C. frightened; frightened D. frightening; frightening frighten B 返回目录 英语 八年级 下册 配上海教育版 3. The girl is frightened of watching alien cartoons. （改为同义句，每空一词） =The girl _________ __________________ ____________ watching alien cartoons. =The girl ______ ______________________________________ ____________ watch alien cartoons. is scared / afraid of is frightened / scared / afraid to 返回目录 英语 八年级 下册 配上海教育版 fear 返回目录 英语 八年级 下册 配上海教育版 His biggest fear was getting lost in the endless space. 他最大的恐惧是在浩瀚的太空中迷路。 Some astronauts fear floating in space without any protection. 一些宇航员害怕在没有任何防护的情况下漂浮在太空中。 They are fearful that the alien signal is a warning from outer space. 他们担心那个外星信号是来自外太空的警告。 The two brothers ran in fear when they saw a strange object moving towards them. 看到一个奇怪的不明物体朝他们移动，兄弟俩恐惧地跑开了。 Her brother has a fear of the dark. 她弟弟对黑暗感到害怕。 返回目录 英语 八年级 下册 配上海教育版 1. She looked at the alien model ____________ (fear) and refused to touch it. 2. People used to have a ____________ (fearful) of the dark sky because they didn't know what was beyond it. 3. He fears _____________________ (take) part in the space camp without his friends. fearfully fear taking / to take 返回目录 英语 八年级 下册 配上海教育版 4. 随着不明飞行物越来越近，这位太空探索者恐惧地闭上了眼睛。（根据汉语意思完成句子，每空一词） The space explorer closed his eyes________ _________ as the UFO got closer and closer. 5. 宇航员们小心翼翼地行走在月球表面，唯恐会损坏他们的宇航服。（根据汉语意思完成句子，每空一词） The astronauts walked carefully on the Moon's surface __________ ____________ ____________ damaging their spacesuits. in fear for fear of 返回目录 英语 八年级 下册 配上海教育版 refuse 返回目录 英语 八年级 下册 配上海教育版 The little boy refused the toy car but accepted the cool model spaceship happily. 那个小男孩拒绝了玩具车，却开心地收下了炫酷的飞船模型。 The brave man refuses to give up the mission even if he meets a big challenge. 即使遇到很大的挑战，这个勇敢的男人也拒绝放弃任务。 The space centre refused the reporters permission to watch the rocket launch closely. 航天中心拒绝了记者们仔细观看火箭发射的请求。 返回目录 英语 八年级 下册 配上海教育版 1. His____________ (refuse) to visit the space museum is very surprising. (　　)2. —Would you like to _____ our invitation to the Space Exploration Club? —Sorry, I have to _____ it because I have a lot of work to do. A. accept; refuse B. refuse; accept C. accept; accept D. refuse; refuse refusal A 返回目录 英语 八年级 下册 配上海教育版 3. 这个女孩拒绝相信外太空有外星人。（翻译句子） _____________________________________________________________ _____________________________________________________________ The girl refuses to believe that there are aliens in outer space. 返回目录 英语 八年级 下册 配上海教育版 emergency 返回目录 英语 八年级 下册 配上海教育版 In an emergency, you can press the red button to contact the Earth control centre at once. 在紧急情况下，你可以按红色按钮立刻联系地球控制中心。 The base had to declare a state of emergency after the alien-like signal damaged the system. 当类似外星人的信号损坏了系统后，基地不得不宣布进入紧急状态。 An emergency plan will be announced if the rocket crashes. 如果火箭坠毁，应急计划将会被公布。 They will show passengers the emergency exit and how to wear their seat belt. 他们会向乘客说明紧急出口在哪里，也会教他们如何系上安全带。 返回目录 英语 八年级 下册 配上海教育版 1. 所有的学生都应该记住：在紧急情况下，安全第一。 All the students should remember: _______ ____________ _________________ , safety comes first. 2. 没有应急计划，一旦出现问题，你很容易会紧张。 Without ________ _______________ ____________ , you will easily get nervous when things go wrong. 根据汉语意思完成句子，每空一词 in an emergency an emergency plan 返回目录 英语 八年级 下册 配上海教育版 unnecessary 返回目录 英语 八年级 下册 配上海教育版 It is unnecessary to take too much food to the space museum. 带太多食物去那个太空博物馆是不必要的。 We recognize the necessity for a written agreement. 我们认为有必要签订一份书面协议。 Some people think communicating with aliens is necessary. 有些人认为和外星人交流是有必要的。 返回目录 英语 八年级 下册 配上海教育版 1. 用necessary的适当形式填空 （1）It is totally ________________ to fear the unknown planets if you learn more about them. （2）He paid attention to the ____________ for good planning and management. （3）If ________________ , you can search for information online to know more about the universe. unnecessary necessity necessary 返回目录 英语 八年级 下册 配上海教育版 （4）Some parents worry _________________ about their children. They should learn to let go. 2. Taking too many photos of the model spaceship is unnecessary. （改为同义句，每空一词） _________ _______ unnecessary ____________ ____________ too many photos of the model spaceship. unnecessarily It is to take 返回目录 英语 八年级 下册 配上海教育版 whether 返回目录 英语 八年级 下册 配上海教育版 The astronaut doesn't know whether he will land on Mars or not. 这位宇航员不知道自己是否会登上火星。 He couldn't tell whether she was laughing or not. 他弄不清楚她是否在笑。 The scientist hasn't decided whether to explore the unknown planet or not. 这位科学家还没决定是否要探索那颗未知的星球。 返回目录 英语 八年级 下册 配上海教育版 1. She asks _________________ there is alien life in the universe. 2. The engineer hasn't decided____________ or not to repair the broken spaceship. 3. She was not sure about ____________ to stay or leave. 4. No one knows____________________ the astronauts can return to the Earth safely. 用whether或if填空 whether / if whether whether whether / if 返回目录 英语 八年级 下册 配上海教育版 disappoint 返回目录 英语 八年级 下册 配上海教育版 The bad weather disappointed the kids because they couldn't go to the space museum. 糟糕的天气让孩子们感到失望，因为他们无法去太空博物馆。 We were disappointed as we didn't find any signs of alien life on the planet. 我们很失望，因为我们没有在这个星球上发现任何外星生命的迹象。 The result of the space exploration was disappointing. 这次太空探索的结果令人失望。 To our disappointment, the spaceship couldn't land on Mars because of a technical problem. 令我们失望的是，由于一个技术故障，飞船没能在火星着陆。 返回目录 英语 八年级 下册 配上海教育版 1. The news about the failed mission made all of us________________________ . 2. To their_________________________ , the space movie was over when they arrived. 3. We received another______________________ report on the missing spacecraft. 4. I hate to____________________ you, but I'm just not interested in the project. 用disappoint的适当形式填空 disappointed disappointment disappointing disappoint 返回目录 英语 八年级 下册 配上海教育版 argue 返回目录 英语 八年级 下册 配上海教育版 Some scientists argue with each other about whether there is water on Mars. 一些科学家就火星上是否存在水而互相争论。 The argument about the unknown space signal lasted for hours. 关于那个未知太空信号的争论持续了好几个小时。 Many experts argue for more investment in space exploration technology. 许多专家主张为太空探索技术投入更多资金。 Some people argue against sending humans to distant planets because of the high risk. 一些人反对将人类送往遥远的星球，因为风险太高。 返回目录 英语 八年级 下册 配上海教育版 1. The two boys had an ____________ （argue） about the best way to fix the toy. 2. Miss Smith argued him into _________ (cut) down the cost. (　　)3. They argued _____ the host over building a new space station on the Moon. A. with B. over C. for D. against (　　)4. The children were arguing _____ which TV programme to watch. A. with B. about C. for D. against argument cutting A B 返回目录 英语 八年级 下册 配上海教育版 一、根据要求写出相应的单词 1. backward—____________ (反义词) 2. refuse—____________ (反义词) 3. crazy—____________ （adv. ) 4. whether—___________ (近义词) 5. emergency—____________________ (复数) 6. disappoint—______________________ （n. ) 课堂练习 forward accept crazily if emergencies disappointment 返回目录 英语 八年级 下册 配上海教育版 7. frightened—____________________ （v. ) 8. fear—____________________ （adj. 害怕的) 9. unnecessary—____________________ (adv. 非必要地) 10. ugly—________________________________________ (反义词) frighten fearful unnecessarily beautiful / pretty / good-looking 返回目录 英语 八年级 下册 配上海教育版 二、用所给单词的适当形式填空 1. The story about alien spaceships is really ____________ (frightened). 2. His____________ (refuse) to pay the bill got him into even more trouble. 3. My sister fears _______________ (go) on a trip by herself. 4. The police advise passengers to travel only if their journey is ___________________ (unnecessary). 5. They were so ___________________ (disappoint) at the result of the game. frightening refusal going / to go necessary disappointed 返回目录 英语 八年级 下册 配上海教育版 6. Lily broke the toy ship during an ____________ (argue) with her brother. 7. He will get very angry if people ____________ (agree) with him. 8. When the police arrived, the crowd left in all____________ (direction). 9. She got a bad grade because of ____________ (be) careless in the exam. 10. You should keep____________ (quietly) because your sister is doing her homework. argument disagree directions being quiet 返回目录 英语 八年级 下册 配上海教育版 三、完形填空 It was a fine day for a walk down the street. A mother and her two little girls walked along the sidewalk, talking ___1___ and laughing. Suddenly, one hundred small alien ships appeared in the sky. They started giving off some bright light to the ground. People screamed (尖叫) in ___2___. (　　)1. A. quietly B. happily C. sadly D. noisily (　　)2. A. fear B. anger C. peace D. excitement B A 返回目录 英语 八年级 下册 配上海教育版 Children cried. All of them were ___3___. There came the sound of glass breaking everywhere. People ___4___ in every direction. The mother was pushed by others and lost hold of her children. She was ___5___ and raced around, shouting and crying for her kids. She thought they were lost forever. (　　)3. A. cheerful B. angry C. interested D. frightened (　　)4. A. passed away B. ran away C. came out D. went out (　　)5. A. surprised B. bored C. worried D. excited D B C 返回目录 英语 八年级 下册 配上海教育版 The sky cleared up. The ___6___ were gone. But there was still no sight of the children. Heart-broken, the mother reached her house, crying her eyes out. She ___7___ some kids call “Mama” suddenly. Were they her kids? She looked around in a hurry. There they were! Hand in hand, they ran towards her. She ran towards them too. Her ___8___ held out eagerly to hug them. (　　)6. A. children B. astronauts C. aliens D. scientists (　　)7. A. saw B. smelled C. felt D. heard (　　)8. A. eyes B. ears C. arms D. legs C D C 返回目录 英语 八年级 下册 配上海教育版 She opened her eyes. The pillow (枕头) was ___9___. It was just a terrible dream! She rushed to her kids' bedroom. At this moment, her lovely girls were ___10___ peacefully. She kissed both of them gently and whispered（低语）, “I love you forever. ” (　　)9. A. wet B. cold C. dry D. dirty (　　)10. A. talking B. sleeping C. singing D. dancing A B 返回目录 英语 八年级 下册 配上海教育版 THANKS! 返回目录 英语 八年级 下册 配上海教育版 $