Unit 4教学课件 2025-2026学年人教版（2024）八年级英语上册

Unit 4 Amazing Plants and Animals 八年级上册 1 Pronunciation 1 Listen and repeat. Add one more word to each group. (答案不唯一) /eɪ/ /aɪ/ /ɔɪ/ /bl/ /kl/ /gl/ /br/ /kr/ /gr/ a, ai, ay i, y, igh oy, oi bl cl gl br cr gr whale rain stay ______ mice fly high ______ toy join choice _____ black blow blue ____ clean climb clock ____ glad glass globe ____ bread bring brown _____ cross cream cry _____ grass great grow ____ cake light boy block class glue brush crew green 自主学习·教材剖析 1. folding /'fəʊldɪŋ/ adj. 折叠式的；可折叠的 n. 褶皱；折叠 fold v. 折叠；对折 folding adj. 折叠式的；可折叠的 folding fan 折扇 folding chair 折叠椅 folding bed 折叠床 folding door 折叠门 fold 短语： fold up 折叠起来 fold the clothes 叠衣服 Mum uses a umbrella because it doesn’t take up much space. You should _________（折叠） the clothes before putting them in the suitcase. 折叠帐篷的说明不够清晰，所以我们在搭建帐篷时遇到了困难。 The instructions for ________ ________ ________ are not clear, so we are having trouble setting it up. folding fold the folding tent 合作探究·教材重点 popular adj. 欢迎的;流行的 popularity n. 流行;受欢迎 be popular with/among sb. 受某人欢迎 get/become popular 变得受欢迎、流行 This kind of mobile phone is very popular with young people. 这种手机很受年轻人欢迎。 Hanfu, a kind of ancient Chinese clothes, is getting more and more popular among Chinese young people now. 汉服是中国古代的一种服饰，现在越来越受到中国年轻人的欢迎。 2. Bamboo is one of the most popular subjects in Chinese paintings. Hua Hua — a panda at Chengdu Giant Panda Base is _______ because of her cute looks. A. popular B. public C. proper D. private Running is getting . It is good for our health and it costs nothing. 这部电影很受学生欢迎。你知道原因吗？ The movie _________ _________ _________ students. Do you know the reason? A popular is popular with 合作探究·教材重点 good (adj.) + -ness (名词后缀)= goodness /ˈɡʊdnəs/n. 美德；营养 【用法释疑】不可数名词，指人的品德高尚或食物的营养成分 for goodness' sake 看在老天的份上 the goodness of sth. 某物的益处 / 美德 have the goodness to do sth. 好心做某事 We should always remember the goodness of our parents. 我们应该永远记住父母的养育之恩。 Much of the goodness in food may be lost in cooking. 食物在烹调中可能失去许多养分。 3. It’s a symbol of goodness in Chinese culture. The ____________ (good) in nuts helps to keep our hearts healthy. 善良和美德是一个人能拥有的最伟大的品质。 ___________ __________ ___________ are the greatest qualities a person can have. goodness Kindness and goodness 合作探究·教材重点 use v. 使用； n. 用途 useful adj. (反义词) useless 无用的 use sth. to do sth 用某物做某事  Can I use your pen? 我能用你的笔吗？ What's the use of this tool? 这个工具的用途是什么 ？ tool (s) n. 工具；手段 tool for doing sth. 做某事的工具 Language is a tool for communication. 语言是交流的工具。 4. People can use it to build houses and make tools and instruments. 合作探究·教材重点 5. actually /'æktʃuəli/ adv. 实际上；居然 actual adj. 真实的；实际的 actually adv. 实际上；事实上 actually 通常用于句首或句中，用来强调所说内容的真实性 We actually have a pet dog. Actually, I forgot to tell you that I have a meeting tomorrow. __________ (actual), I don’t think that’s a good idea. 她其实唱得很好。（翻译句子） ____________________________________________ Actually She actually sings very well. 合作探究·教材重点 shoot n. 幼苗；嫩芽 （复数）shoots v. shoot - shot 开(枪); 射击; (使朝某方向)冲,奔,飞驰; 射门 shoot at 朝…… 射击； shoot sth. 射击某物； shoot up 迅速生长；猛增; shoot down 击落; young shoot（幼苗）； The hunter shot at the target but missed. 猎人朝目标射击，但没打中。 The shoot of the plant is growing rapidly. 这株植物的嫩芽生长迅速。 The prices of houses are shooting up. 房价在猛涨。 6. Actually we eat bamboo shoots too. 事实上我们也会吃竹笋。 【辨析】shoot与shoot at区别 ①“shoot” 射中；射死，强调射击的结果。 ②“shoot at” 强调朝某个方向或目标射击这个动作，不强调是否击中。 He shot the bird.（他射中了那只鸟），重点在鸟被射中这一结果。 He shot at the bird.（他朝那只鸟射击），只说明他朝鸟的方向开枪了，不确定鸟是否被击中。 My mum planted some flower in the backyard. I hope they will grow soon. He __________（射击）at the target but missed. 士兵成功地击落了敌机。 The soldier successfully __________ __________ the enemy plane. 春雨过后，新的幼苗开始冒出头来。（翻译句子） ______________________________________________ shoots shot shot down New shoots are starting to appear after the spring rain. 合作探究·教材重点 7. Why does bamboo often appear in Chinese paintings? 1. appear  v. 出现;呈现 appearance  n. 出现；外观 disappear  v. 消失，失踪 disappearance n. 消失；失踪 appear in 出现在……； appear on 在…… 上出现； 2. appear 系动词, 似乎；好像；看起来 appear to do sth. 似乎要做某事 appear + adj. 看起来…… A strange object appeared in the sky last night. 昨晚天空中出现了一个奇怪的物体She appeared on the stage and began to sing. 她出现在舞台上，开始唱歌。 She appears to know a lot about the subject. 她似乎对这个主题了解很多。 合作探究·教材重点 Although English has a history of over 2,500 years, the first English dictionary didn’t __________ （出现） until the 17th century. Don’t be fooled by his _____________ (appear). 这本书看起来非常有趣。 The book __________ __________ __________very interesting. appear appearance appears to be 合作探究·教材重点 go on 继续（做某事） go on doing sth. “继续做同一件事” go on to do sth. “接着做另一件事” Let's go on studying. 我们继续学习吧。   What's going on here ? 这里发生了什么？   8. Let’s go on!   合作探究·教材重点 9. land /lænd/n. 陆地；土地；v. 降落；着陆；使上岸； on land 在陆地上； by land 经陆路 land on 降落在...上； land in 在…着陆,陷入 Most animals live on land. 大多数动物生活在陆地上。 The plane landed safely at the airport. 飞机安全降落在机场。 一般来说，飞机只能降落在陆地上，不能在水上。 In general, a plane can only __________ ______ __________ , not on water. land on land 10. African /ˈæfrɪkən/ adj. 非洲的；非洲人的 n. 非洲人 Africa n. 非洲 African (复数) African(s) Asia n. 亚洲 Asian (复数) Asian(s) 11. believe /bɪ'liːv/ v. 相信；认为有可能 believe v. believable adj. 可信的 believably adv. unbelievable adj. 难以置信的 unbelievably adv. It’s believed + that 从句 人们认为…… believe it or not “信不信由你” Believe it or not, our cat can open the refrigerator door by itself. believe 相信 believe in 信任，信赖 It’s hard to _________（相信）a tree can develop from a small seed. Boys and girls, work hard! I you will succeed in the exam. I believe that he can help us.（变成否定句） I _________ believe that he _________ help us. 贝蒂，你应该信任自己。这是迈向成功的第一步。 Betty, you should _________ _______ yourself. It is the first step towards success. believe believe don’t can believe in 合作探究·教材重点 12. Bamboo seems to be a very popular plant in China.竹子似乎在中国非常受欢迎。 seem 系动词, “看起来；似乎”  ① seem (to be) + adj. 似乎...... He seems happy. 他看起来很开心。   ② seem to do sth   似乎做某事 They seem to know the answer. 他们似乎知道答案。   ③ It seems/seemed that + 句子 It seems that he is happy. 他看起来很高兴。    13. The cheetah runs the fastest among all land animals. 【详解】among prep. 在……之间（三者或三者以上） She is standing among the trees.（她站在树林中间。）   The book is hidden among the magazines.（书藏在杂志中间。）   【拓展】between prep. 在……之间（两者之间） between ... and ... 在… 和 …之间 The house is between the river and the hill.（房子在河和山之间。）   14. Some could stand up to three meters tall and weigh up to 860kg. 【详解】（1）up to ① 直到：表示时间或数量的上限。   The store is open up to 10 p.m. 商店营业到晚上10点。 ②多达：强调数量。 This bag can hold up to 20 books. 这个袋子最多能装20本书.   ③由……决定：表示选择权。   It's up to you. 由你决定。 （2）weigh v. 称...的重量;重...; 权衡 weight n. 重量 weigh sth. 称某物的重量； weigh up to 重达…… ; weigh up 权衡 He weighed the package before sending it. 他寄出包裹前称了重量。 The elephant weighs about 5 tons. 这头大象重约5吨。 This elephant weighs up to 5 tons. 这头大象重达 5 吨。 He is weighing up the pros and cons of the plan.他正在权衡这个计划的利弊。 put on weight 增重 lose weight 减肥 the weight of... ……的重量 The elephant at the zoo several tons. 你能帮我称一下这个包裹吗？ Can you _________ _________ _________ for me? 我们需要权衡一下放学后踢足球还是休息。 We need to _________ _________ playing football or having a rest after school. weighs weigh this package weigh up 合作探究·教材重点 as prep . & conj. 。   ① prep. “作为” She works as a teacher.（她是一名教师。）   ② conj. 当……时（引导时间状语从句）： He sings as he walks.（他边走边唱。）    ③ conj. 因为（引导原因状语从句）：   We stayed at home as it rained.（因为下雨，我们待在家里。）     15. Chinese people love the ginkgo, as it is a symbol of hope and long life. 合作探究·教材重点 16. kg (=kilogram) 千克；公斤 gram = g 克（符号g）； milligram = mg 毫克（符号mg）； tonne (国际） 公吨 vs ton (英制）吨（符号t） kilometer = km 千米 meter = m 米 decimetre = dm 分米 /ˈdesɪmiːtər/ millimeter = mm 毫米 17. connect v. 关联；连接 connect v. connected adj. 连接的;相关的 connection 连接 connect with 与……连接/关联；with 强调相互联系， connect to 连接到……；to 强调连接的对象 The bridge connects the two cities. 这座桥连接着两座城市。 The story connects with his childhood experiences. 这个故事与他的童年经历有关联。 You can connect the printer to the computer.你可以把打印机连接到电脑上. be connected with / to 与……相连/有关联 The two towns are connected by a railway. 这两个城镇由一条铁路连接. connection /kəˈnekʃn/ n. 联系；连接；连接点；（人际）关系 have a connection with 与…… 有联系 the connection between...and... …… 和…… 之间的联系 make a connection 建立联系 lose connection 失去联系 There is a strong connection between smoking and lung cancer. 吸烟和肺癌之间有很强的联系。 We should make more connections with different people. 我们应该和不同的人建立更多联系。 These wires are __________ (connect) to cables under the street. Not only the highways but also the railway __________ (连接) the two cities. Can you see the _____________ (connect) between this story and our history lesson today? 我的老师告诉我，当她还是学生的时候，她经常把知识和有趣的东西联系起来。My teacher told me that she often ________ the knowledge ______ something interesting when she was a student. connected connects connection connected with 合作探究·教材重点 18. Chinese people love the ginkgo, as it is a symbol of hope and long life. 【详解】as 的用法：   ① prep. She works as a teacher.（她是一名教师。）     ② conj. 当……时（引导时间状语从句） He sings as he walks. 他边走边唱。   ③ conj. 因为（引导原因状语从句） We stayed at home as it rained. 因为下雨，我们待在家里。 19. feel free ( to do sth. ) 随便做某事 Feel free _________ (play) with my toys when you come over. 如果你饿了，可以随便吃桌子上的零食。 If you’re hungry, ________ ______ ____ _______ the snacks on the table. to play feel free to eat 20. take a walk 散步 take a walk = take walks = go for a walk = have a walk “ take + 名词 ”短语： take a look 看一看 take a rest 休息一下 On weekends, my family and I often take a in the woods. 散步可以帮助你放松。 _________________ _____ _______ can help you feel relaxed. walk Taking/Having a walk imagine v.  想象,设想 imaginary adj. 想象的;虚构的   imagination n. 想象力  imagine doing sth. 想象做某事 ； imagine that... 想象…… Can you imagine life without electricity? 你能想象没有电的生活吗？ She imagined herself winning the competition. 她想象自己赢得了比赛。 I can’t imagine what happened there. 我无法想象那里发生了什么。 21. Imagine you go to the supermarket in your area, but there are almost no fruits, vegetables, honey, milk, eggs, or chocolate. I couldn’t ________ what else he has to say. Everyone knows that’s a lie. A. suppose B. imagine C. realize D. consider —Tom, can you _________ (想象) the life of humans on Mars in the future? —I think it must be amazing. I imagine her __________ (study) hard for the exam. B imagine studying 合作探究·教材重点 22. Disappointed? Angry? Sad? At this moment you realize people, plants, and animals are all connected. disappoint v.失望 disappointed adj. disappointment n. disappointing adj. be disappointed (with/at/about sth.) 对某事感到失望。 I'm disappointed with the result of the exam. 我对考试结果感到失望。 be disappointed (in/with sb.) 对某人感到失望 My parents are disappointed in me because I didn't get good grades. be disappointed to do sth. 因做某事而感到失望 He was disappointed to hear that he didn't get the job. to one’s disappointment 令某人失望的是 My brother seemed when he found out he didn’t pass the test. It was ____________ (disappoint) that he refused to help his classmates in the singing competition. 她极力掩饰她是多么失望。 She tried not to show ____________ ________she was. disappointed disappointing how disappointed 合作探究·教材重点 23. action /'ækʃn/ n. 行动；行为 act + -ion = action take action to do sth. 采取行动做某事 action 的同根词： act v./ n. 行动，行为 active adj. 活跃的；积极的；主动的 activity n. 活动；行动 actor n. 男演员 actress n. 女演员 合作探究·教材重点 24. per cent /pə 'sent/ n. 百分之…… adj. & adv. 每一百中 per cent = percent n.“百分之……” ...per cent of...（…… 的百分之……） “基数词 + per cent + of + 名词或代词”结构作主语时，谓语动词用单数或复数要根据结构中的名词或代词的单复数来确定。 The project is 75 __________ (per cent) complete. 地球表面的71%被水覆盖。 surface is covered by water. per cent Seventy-one per cent of the earth’s 合作探究·教材重点 25. In order to store honey, they create honeycombs.为了储存蜂蜜,它们建造蜂巢. 【详解】(1).in order to do sth. = so as to do sth. 为了做某事 in order not to do sth. 为了不做某事 He ran quickly so as to/in order to catch the train. 他跑得很快为了赶上火车。 She tiptoed in order not to wake the baby. 她踮着脚走，为了不吵醒宝宝。 in order that + 从句 = so that + 从句 为了...... He studies hard in order that/so that he can get good grades. 他努力学习以便能取得好成绩。 合作探究·教材重点 (2). create v. 创造,创作 creative adj. 有创意的 creator n. 创造者 creation n. 创作,作品 creature n. 创作物，生物 Artists create beautiful paintings. 艺术家用颜料创作美丽的画作。 She created a new game for children. 她为孩子们设计了一款新游戏。 (3). store v. 贮存，存储； n. 百货商店；商店 store sth. in... 把某物储存在…… ； department store 百货商店； grocery store 杂货店；小卖部；convenience store 便利店 They store vegetables for the winter. here’s a bookstore near my school. 合作探究·教材重点 26. Another interesting thing about bees is how they communicate. 【详解】（1）“another” 表示“又一的，再一个（或一批）的” another + 名词单数 another + 数字 + 名词 We need another three chairs.  one another = each other 互相，彼此 They help one another. 他们互相帮助。 （2）communicate v. 交流,沟通    communication communicate with sb. 与某人交流  We communicate with each other by phone. communicate in + 语言 用某种语言交流   They communicate in English. communicate sth to sb 向某人传达某事 When I have questions, I communicate them to my teacher. 合作探究·教材重点 27. Bees play an important part in the ecosystem of our planet. play a part (in sth)  = play a role (in sth) 参与...... , 在……中起作用 Everyone plays a part in protecting the environment. 每个人都在保护环境中起作用。 play a part in doing sth 在做某事中起作用 Exercise plays a part in keeping healthy. 锻炼在保持健康中起作用。  important importance n. 重要性 the importance of... ……的重要性； He realized the importance of learning English. 合作探究·教材重点 Students play a role in ___________ (keep) the classroom clean. 父母在照顾孩子们方面发挥作用。 Parents _______ ____ ______ ____ taking care of the children. keeping play a role in 合作探究·教材重点 Doing homework is very for students. So I always do my homework first. Parents often teach their children the __________ (important) of honesty. 水对所有生物都非常重要。 Water is ______ ______ ____________to all living things. important importance of great importance 合作探究·教材重点 28. Think about what you can do to protect one of the most amazing animals on earth. protect  v. 保护;防护 protective adj. protection  n. protect...from/against... 保护……免受……； protect the environment 保护环境 Wearing a helmet gives us good head ___________ (protect). We should our teeth by brushing them twice a day. 太阳镜可以保护我们的眼睛免受强烈阳光的照射。 Sunglasses can ___________ our eyes ___________ the bright sunlight. protection protect protect from 合作探究·教材重点 29. human /ˈhjuːmən/ n. 人;人类 adj. 人的；人类的；人本性的 用法：可数名词,复数形式为 humans,常与动物对比,强调人类这一群体; 形容词，作定语修饰名词，描述与人类相关的特征或事物。 human being 人类； human society 人类社会 Humans should protect the environment. 人类应该保护环境。 This is a great human achievement. 这是一项伟大的人类成就。 can build houses, cars, and other things. 作为人类，我们应该关心我们的地球。 _____ _________ _________ , we should care about our planet. Humans As human beings 30. Because of this, they are popular subjects in studies on climate change and the ecosystem. 【详解】 ① because of + n / pron. / phrase， 介词短语，“因为；由于” because + 句子， conj. “因为；由于” We didn't go out because of the rain. 因为下雨，我们没出去。 ② study v. “学习;研究”; n. “学习；研究；书房”。   I have to do my study now. 我现在得学习了。 ③ subject n. 学科；科目;主题;话题;主语。 The subject of our discussion is "environment". 我们讨论的主题是“环境”。 ④ ecosystem（n.）生态系统 派生词：ecology (生态) system= ecosystem n 生态系统 ecotourism n 生态旅游 ecofriendly adj. 对生态环境友好的；环保的 forest ecosystem 森林生态系统； marine ecosystem 海洋生态系统 terrestrial ecosystem 陆地生态系统  Human activities can damage the ecosystem. 人类活动会破坏生态系统。 Protecting the ecosystem is important for our survival. 保护生态系统对我们的生存很重要。 31. However, the number of bees is dropping, and scientists are worried. the number of + 复数 ...的数量 谓语动词用复数 a number of + 复数 许多...... 谓语动词用复数 The number of students in our class is 45. 我们班的学生数是45个。 A number of birds are flying in the sky. 许多鸟正在天上飞。 （2）drop v. 掉落,下降 n. 滴 drop off 开车把某人送到某处 drop in 顺便拜访 a drop of 一滴…… （3）worried adj. 担心的 worry v. be worried about sb./sth. = worry about sb/sth 担心某人/某事 be home to sb./sth. 有……栖息；是……的家乡 The forest is home to many animals. 这片森林是许多动物的家园。   China is home to pandas. 中国是大熊猫的故乡. The Arctic is home __________ polar bears and other cold-weather animals. A. to B. at C. in D. for 非洲是许多独特动物物种的家园。 Africa __________ __________ __________ many unique animal species. 32. They are home to many birds. A is home to the size of ……的大小，用于描述尺寸或规模。   The size of our classroom is about 60 square meters.（我们教室的大小约60平方米。） What's the size of your schoolbag?（你的书包多大？） while的用法 n. adv. & conj. (1) n. for a while 一段时间, 一会儿 (2) conj. ①“当……时候,和……同时”，引导时间状语从句.（强调两个动作同时进行） While I was watching TV, the bell rang. ② “虽然,尽管”,引导让步状语从句 While it was late, he went on working. ③ 连接两个并列句子,表“对比” He went out for a walk, while I stayed at home. 33. The smallest frogs are about the size of a pea, while larger ones can grow as big as a human hand. 34. Blue whales live in all oceans except Arctic Ocean. except prep. “除……之外；除了” Everyone except John passed the test. 除约翰外，大家都通过了考试。 【易错点辨析】besides/except/except for ① besides “除……之外，还有……”，强调包括在内。 Besides English, he also learns French. 除了英语，他还学法语。 ② except “除……之外”，排除在外。 Everyone is here except Tom. 除了汤姆，大家都在这儿。 ③ except for “除……之外”，强调整体中的部分被排除在外。 The room is empty except for a chair.（房间里除了一把椅子外，什么都没有。） watch/see sb do sth：看见某人做了某事；看到全过程或动作经常发生。 I watched him play basketball from start to finish.（我看他打了整场篮球。） watch/see sb doing sth：看见某人正在做某事；看的时候动作正在发生。 I watched him playing basketball when I passed by the playground. 我路过操场时，看到他正在打篮球。 35. Many people like watching blue whales swim. lively /ˈlaɪvli/ adj. 活泼的;生机勃勃的;思维活跃的;生动有趣的 【解析】：作定语修饰名词，描绘人或事物充满活力的特点； 作表语，描述人或场景的活跃状态。 a lively child 一个活泼的孩子； a lively discussion一场热烈的讨论； a lively city 一座充满活力的城市 The party was very lively. 派对非常热闹。 She is a lively girl. 她是个活泼的女孩。 We had a lively discussion about the future.我们对未来进行了一场热烈的讨论. 36. This food lasts for over a year and it helps to create a lively and healthy ecosystem. 37. for this reason 出于这个原因 【解析】用于引出导致某事发生的原因，常放在句首，后面接句子说明结果，使因果关系更清晰。 For this reason, he was late for school. 出于这个原因，他上学迟到了。 For this reason, we decided to change our plan. 出于这个原因，我们决定改变计划。 25.in order to 用法讲解 含义：为了；以便 - 用法：后接动词原形，引导目的状语，表示做某事的目的，可置于句首或句中。 - 例句 He gets up early in order to catch the first bus.（他早起是为了赶上第一班公交车。） In order to improve his English, he reads English books every day. （为了提高英语水平，他每天读英语书。） 02 词汇巩固练习题 一.词汇选择题 1.The movie is very ______ with young people. They all like it. A. boring B. popular C. difficult D. expensive 2.We can't live ______ water. It's very important. A. with B. without C. for D. in 3.The hunter ______ at the bird but missed it. A. shoot B. shoots C. shot D. shooting 4.This kind of flower sends out new ______ in spring. A. shoots B. shoot C. shot D. shooting 5.She was very ______ when she heard the bad news. A. happy B. disappointed C. excited D. interested B B C A B 一.词汇选择题 6.The plane will ______ at the airport in an hour. A. land B. take off C. fly D. arrive 7.He ______ to help me clean the classroom yesterday. A. volunteered B. wanted C. asked D. needed 8.There is a strong ______ between smoking and health problems. A. connect B. connected C. connection D. connecting 9.______ ，he is a very kind - hearted person. A. In fact B. For this reason C. In order to D. At first 10.We should play a ______ in protecting the wild animals. A. part B. role C. game D. A and B A A C A D 二、选词填空（用适当形式） 1.The ______（weigh） of the box is about 5 kilograms. 2.She is very ______（lively） and always makes us laugh. 3.We should learn to ______ （communicate） with others effectively. 4.The Internet makes it easier for people to stay ______（connect）. 5.______（African） culture is very different from ours. weight lively communicate connected African 二、选词填空（用适当形式） 6.He was very sad because he ______ （disappoint） his parents. 7.There are many ______（store） near my home. It's very convenient. 8.We should know the ______ （important） of protecting the environment. 9.She did a lot of ______（volunteer） work during the holidays. 10._____（shoot） at animals is not allowed in the forest. disappointed stores importance voluntary Shooting Thank You! $$