Unit 4 单词讲解课件 2025-2026学年人教版英语八年级上册

2025秋人教八上 单词讲解课件 Unit 4 Amazing Plants and Animals 1 moss /m s/ n. 苔藓 例句:Moss covered the old stones in the garden. 用法: moss (不可数名词) 2 redwood / redw d/ n. 红杉;红木 例句:A single redwood can live for more than 2,000 years. 搭配: redwood tree(红杉树) redwood forest(红杉森林) redwood furniture(红木家具) 3 cheetah / t i t / n. 猎豹 例句:The cheetah is the fastest land animal. 搭配: as fast as a cheetah(像猎豹一样快) cheetah - like speed(猎豹般的速度) 4 folding / f ld / adj. 折叠式的;可折叠的 例句:She bought a folding stroller for her baby. 搭配: folding fan 折扇 folding chair 折叠椅 folding bed 折叠床 folding bicycle 折叠自行车 5 bamboo / b m bu / n. 竹;竹子 例句:Bamboo is not a tree,but a kind of grass. 搭配: bamboo shoot:竹笋 bamboo forest/grove:竹林 bamboo leaf:竹叶 bamboo raft:竹筏 6 popular / p pj l (r)/ adj. 广受欢迎的;流行的 例句:The new singer quickly became popular among teenagers. 搭配: be popular with/among 在…… 群体中受欢迎 变形: popularity n. 流行度、受欢迎程度、普及性 7 goodness/ dn s/ n. 美德;营养 例句:She showed great goodness by helping strangers during the crisis. 用法: goodness 指人内心的善意、道德品质或行为的正直,是不可数名词。 goodness 描述某物的优质特性、营养价值或积极作用。 e.g. Eat more fruits to enjoy the goodness of natural vitamins. 8 tool /tu l/ n. 工具;手段 例句:Language is a powerful tool for communication. 用法: tool n. 工具;手段 (不可数名词) 9 actually / kt u li/ adv. 实际上;居然 例句:I thought she was angry, but actually she was just tired. 用法: 置于句首,修饰整个句子 e.g. Actually, I’ve never been to Paris. 置于句中,位于 be 动词 / 助动词后,实义动词前 e.g. She is actually a talented singer. 置于句末,口语中加强语气 10 shoot / u t/ n. 幼苗;嫩芽 v. (shot / t/) 开(枪);射击 例句:The rose bush has new shoots after winter. 用法: shoot n. 幼苗(可数名词) bamboo shoots 竹笋 shoot v. 开枪;射击 e.g. The hunter shot at a deer but missed. 11 appear / p (r)/ v. 出现;呈现 例句:A shooting star appeared in the sky. 用法: appear v. 显得;看起来 appear to do 看起来.../显得... e.g. The situation appears to be under control. 变形: disappear v. 消失 appearance n. 外表;出现 12 feel free (to do sth) 可以随便做某事 例句:Feel free to ask any questions. 用法: 完整形式:Feel free + to do sth.(不定式作宾语) 简略形式:单独使用 “Feel free.”,适用于简短回应。 e.g. A: “May I enter?” B: “Feel free.” 13 land /l nd/ n. 陆地;土地 v. 降落;着陆 例句:The ship sailed for days before seeing land. 用法: land v. 降落;着落 e.g. The plane will land at Beijing Capital Airport in 30 minutes. land on/at 地点(在某处降落) land safely 安全着陆 14 African / fr k n/ adj. 非洲的;非洲人的 n. 非洲人 例句:He met many Africans during his trip to Kenya. 用法: African n. 非洲人 可数名词 African adj. 非洲的;非洲人的 African culture 非洲文化 African wildlife 非洲野生动物 变形: Africa n. 非洲 15 weigh /we / v. 有……重;称重量 例句:The doctor asked me to weigh myself on the scale. 变形: weight n. 重量 e.g. The package has a weight of 10 pounds. gain/lose weight 增重/减重 e.g. She’s been trying to lose weight by exercising. 16 province / pr v ns/ n. 省份 例句:Guangdong Province is China's most populous province. 用法: Shaanxi Province 陕西省 capital of the province 省会 17 take a walk 散步 例句:I like to take a walk after dinner. 用法: take a walk=go for a walk 散步 e.g. Let’s go for a walk in the park. take a walk along/around(沿……/ 在…… 附近散步) e.g. We took a walk along the beach at sunset. 18 connect /k nekt/ v. 关联;连接 例句:The bridge connects the two sides of the river. 搭配: connect A to/with B(将 A 与 B 相连) e.g. Connect the printer to the computer via USB. be connected with / to 与……相连; 与……有关联 变形:connection n. 连接;关系 19 without /w a t/ prep. 没有;缺乏 例句:Life is impossible without water. 用法: without + 名词 / 代词 e.g. She left the house without her keys. without + 动名词(-ing 形式) e.g. Don’t leave without finishing your work. 20 imagine / m d n/ v. 想象;猜想 例句:Can you imagine life without the internet? 搭配: imagine doing sth. 想象做某事 e.g. I can’t imagine living in a place with no seasons. imagine sb. as sth.把某人想象成…… 变形: imagination(名词):想象力 21 disappointed / d s p nt d/ adj. 失望的;沮丧的 例句:I’m disappointed with the quality of this product. 搭配: be disappointed (in/with/by sb./sth.)对某人 / 某事感到失望 be disappointed to do sth. 变形: disappointing adj.(事物令人失望的) disappointment n. 失望 disappoint v. 使失望 22 pollination / p l ne n/ n. 授粉 例句:Bees play a key role in pollination. 变形: pollinate(vt.):表示 “给…… 授粉”,主语可为传粉者或人。 e.g. Bees pollinate millions of flowers every day. pollen / p l n/ n. 花粉 23 action / k n/ n. 行动;行为 例句:Talk is cheap—we need real action. 搭配: take action 采取行动 e.g. The government must take immediate action to address climate change. action movie 动作片 变形: act v. 行动;扮演 actor n. 演员(男) actress n. 演员(女) 24 in fact 确切地说;实际上 例句:I thought she was from France. In fact, she’s from Belgium. 用法: in fact 用于指出与之前认知或陈述不同的真实情况,可位于句首、句中或句尾。 in fact在已有陈述基础上添加更具体的信息,类似 “actually” 或 “as a matter of fact”。 拓展: fact n. 事实(可数名词) 25 per cent/p sent/ (= percent) n. 百分之…… adj. & adv. 每一百中 例句:The price increased by 5 percent. 搭配: 数字+percent of 百分之...的... e.g. 30 percent of the students are from abroad. “percent of + 名词” 作主语时,谓语动词的单复数由of 后的名词决定。 increase/rise by X percent(增长 X%) decrease/fall by X percent(下降 X%) 26 for this reason 出于这个原因 例句:She missed the train. For this reason, she was late for the meeting. 用法: 用于总结前文提到的原因,并引出相应的结果或结论,相当于 “because of this” 或 “therefore”。 可置于句首和句中,要用逗号隔开。 拓展: the reason for ...的原因 The reason is that... 原因是... 27 in order to 为了;以便 例句:In order to improve his English, he practices speaking every day. 用法: 表示目的,后接动词原形,强调行为的目的性,相当于 “to” 或 “so as to”。 位于句首(强调目的),位于句中(自然衔接目的与行为)。 否定形式:in order not to 为了不... e.g. She tiptoed in order not to wake the baby. 28 store /st (r)/ v. 贮存;存储 n. 百货商店;商店 例句:Convenience stores are open 24/7. 用法: store n. 商店(可数名词) store v. 贮藏;储存(将物品存放起来) 后接具体物品或抽象概念,常与 “in/away/up” 等介词搭配。 e.g. We store winter clothes in the attic. 29 communicate /k mju n ke t/ v. 交流;沟通 例句:She communicates her ideas clearly in meetings. 搭配: communicate with 和...交流 e.g. Teenagers need to communicate with their parents. 变形: communication n. 交流;沟通;通讯 e.g. Good communication is key to a successful team. 30 play a part (in sth) 参与某事 例句:Technology plays a major part in our daily lives. 用法: play a part in sth.=play a role in e.g. Education plays a crucial role in reducing poverty. play a part in + 名词 / 动名词(v.-ing) 其中 “a part” 可替换为 “an important, active,major,small part”,表示作用的程度。 31 ecosystem / i k s st m/ n. 生态系统 例句:The Amazon rainforest ecosystem supports millions of species. 用法: ecosystem n. 可数名词 32 protect /pr tekt/ v. 保护;防护 例句:We must protect wild animals from extinction. 搭配: protect...from...使免受具体的伤害或危险 e.g. Wear a mask to protect yourself from the virus. protect the environment 保护环境 变形: protection n. 保护;防护措施 33 importance / m p tns/ n. 重要性 例句:The importance of education cannot be overstated. 搭配: the importance of ...的重要性 of (great) importance(非常)重要的(相当于形容词)It is of great importance to ... e.g. This decision is of great importance to the company. 变形: important adj. 重要的 be important to... 34 human / hju m n/ n. 人 adj. 人的;人类的 例句:A human can adapt to various environments. 用法: human n. (可数名词) 指单个的人(= human being) human adj. 修饰与人类相关的特征、行为或事物 35 be home to sb / sth 有……栖息; 是……的家乡 例句:The rainforest is home to thousands of species. 用法: 主语(地点) + be home to + 宾语(生物 / 事物 / 群体) 时态根据语境变化(一般现在时最常见),主语单复数决定 be 动词形式。 e.g. These islands are home to ancient tribes. 36 happiness/ h pin s/ n. 幸福;快乐 例句:The pursuit of happiness is a universal human desire. 用法: happiness n. 不可数名词 bring /create happiness(带来 / 创造幸福) seek /pursue happiness(寻求 / 追求幸福) find /discover happiness(找到 / 发现幸福) 变形: happy adj. 幸福的;快乐的 happily adv. 37 disappoint / d s p nt/ v. 使失望;使破灭 例句:Don’t disappoint your teachers—study hard. 变形: disappointed(感到失望的)主语是人 be disappointed with/at/in sb./sth.(对某人 / 某事失望) be disappointed to do sth.(因做某事而失望) disappointing(令人失望的)主语是事物 disappointment 失望,令人失望的人 / 事 38 role /r l/ n. 作用;职能;角色 例句:She played the leading role in the new movie. 搭配: play a role (in sth.) 在某事中起关键 / 重要作用, 可用 key/crucial/vital等形容词修饰role,强调程度。 e.g. Exercise plays a crucial role in maintaining good health. take/play a role (in sth.) 扮演角色 39 climate / kla m t/ n. 气候 例句:Tropical regions have a warm and humid climate. 用法: climate change:气候变化 询问气候:What’s the climate like...? climate和weather的区别 climate 某地区长期的气候特征 weather 某地区短期的天气状况 40 except / k sept/ prep. 除……之外;除了 例句:Everyone passed the exam except Tom. 用法: except + 名词 / 代词,表示 “除…… 之外(不包括该对象)”。 except for + 名词,用于对整体进行修正,后接与主句内容不同类的事物。 except 和besides的区别 except 除…… 之外(不包括) besides 除…… 之外(还包括) 41 tiny / ta ni/ adj. 极小的;微小的 例句:A tiny bird landed on the window sill. 用法: 比较级和最高级 tiny-tinier-tiniest e.g. The tiniest mistake can cause problems. 42 live up to 达到;符合 例句:The movie didn’t live up to my expectations. 用法: live up to + 名词 / 代词,表示 “达到(期望、标准、名声等)” e.g. She strives to live up to her parents’ hopes. 表示 “符合(原则、承诺等)” e.g. A leader should live up to their principles. 43 lively / la vli/ adj. 精力充沛的;生机勃勃的 例句:The lively children ran around the playground. 用法: 修饰人或动物: lively person/child/animal 活泼的人 / 孩子 / 动物 修饰活动或场景: lively discussion/debate 热烈的讨论 / 辩论 修饰事物或表达: lively imagination/style丰富的想象力 / 生动的风格 44 谢谢观看 45 $$