Unit 7 An Amazing Plant-2025-2026学年八年级下册英语重点词汇精讲（教科版）

初中·教科版·8年级下 寒假专版 C版词汇核心考点精讲 【寒假专版】 初中·教科版·8年级下Unit7 An Amazing Plant 单元词汇总览 plenty/'plenti/n.大量：众多pron.from now on /fram nao pn/短语象：想象力：空想 大量：充足 从现在起；今后 fat/faet/n.脂肪；肥肉adj.肥胖 cough /kof/v.&n.咳嗽 prevent /pri'vent/v.预防：阻止；的；肥的 scene/sin/n.场景：场面；景色防止 risk /risk/n.风险：危险：冒险v. awful/'ofl/adj.糟糕的：可怕的：inform/m'fom/v.通知：告知：报冒险：冒…的风险 极坏的 告 bean /bin/n.豆：豆类；豆科植 blood /blad/n.血；血液；血统fire/faIa/n.火；火灾；炉火v.物 cut up /kAt Ap/短语切碎；剁碎；点燃；解雇 vitamin/'vItamin/n.维生素；维 抨击 indoors/.m'dbz/adv.在室内：进他命 uncooked/,n'kkt/ad.未煮过入室内 的：生的 imagination /I maed3I'neIfn/n. 词汇核心考点精讲 l.plenty/'plenti/n.大量；众多pron.大量；充足 ·核心考点：词性：名词(n.)、代词(pron.) 2个核心义：大量（数量多）、充足（足够） ·必记搭配与例句：·plenty of(大量；许多，修饰可数/不可数名词)：There is plenty of food in the fridge. ●in plenty(充足地)：We have time in plenty. ·重点用法：●plenty前不加冠词，后接of,用于肯定句，否定句和疑问句用enough或much/many。 2.awful/'of/adj.糟糕的；可怕的：极坏的 ·核心考点：词性：形容词(adj) 3个核心义：糟糕的（质量差）、可怕的（令人恐惧）、极坏的（程度深） ·必记搭配与例句：·awful weather(糟糕的天气)：The weather is awful today. ●an awful accident(可怕的事故)：There was an awful accident on the road. ●awful mistake(极坏的错误)：I made an awful mistake ·重点派生词：●awfully(副词)：awfully sorry(非常抱歉) 初中·教科版·8年级下 寒假专版 3.prevent /pri'vent/v.预防：阻止：防止 ·核心考点：词性：动词(v) 2个核心义：预防（疾病等）、阻止（行为） ·必记搭配与例句：●prevent...from doing sth.(阻止…做某事)：We should prevent children from playing with fire. ●prevent illness(预防疾病)：Exercise can prevent illness. ·重点派生词：·prevention(名词)：disease prevention(疾病预防) ●preventive(形容词)：preventive measures(预防措施) 4.inform/m'f:m/v.通知：告知；报告 ·核心考点：词性：动词(v) 1个核心义：通知：告知 ·必记搭配与例句：●inform sb.of sth.（告知某人某事)：Please inform me of the result. ●inform sb.that.(通知某人…)：He informed me that the meeting was canceled. ·重点派生词：●information（名词)：a piece of information（一条信息) ●informed(形容词)：an informed decision(有根据的决定) 5.isk /risk/n.风险：危险：冒险v.冒险：冒…的风险 ·核心考点：词性：名词(n)、动词(v.) 2个核心义：风险(n.)、冒险(v.) ·必记搭配与例句：●take a risk(冒险)：He took a risk to save the child. ●at risk(处于危险中)：Smokers are at risk of illness ●risk doing sth.(冒险做某事)：Don't risk climbing that tree.. ·重点派生词：●risky(形容词)：a risky plan(冒险的计划) 6.scene/sin/n.场景；场面；景色 ·核心考点：词性：名词(n) 3个核心义：场景（戏剧/电影)、场面（事件现场）、景色（自然风景） ·必记搭配与例句：●the scene of the accident(事故现场)：Police arrived at the scene of the accident. ●beautiful scene(美丽景色)：We enjoyed the beautiful scene. ●change the scene(换个环境)：Let'sg0 out to change the scene. ·易混词辨析：·scene(具体场景)、scenery(总称景色)：The scene is part of the scenery. 7.imagination1,med3I'nen/n.想象；想象力：空想 ·核心考点：词性：名词(n.) 1个核心义：想象；想象力 初中·教科版·8年级下 寒假专版 ·必记搭配与例句：·use one's imagination(发挥想象力)：Children use their imagination when playing. ●have a good imagination(想象力丰富)：She has a good imagination. ·重点派生词：●imagine(动词)：imagine a picture(想象一幅画) ●imaginative(形容词)：an imaginative story(富有想象力的故事) 8.vitamin/'vitamin/n.维生素；维他命 ·核心考点：词性：名词(n.) 1个核心义：维生素：维他命 ·必记搭配与例句：·vitamin C(维生素C):Oranges are rich in vitamin C. 。lack vitamins(缺乏维生素)：Eating vegetables prevents lacking vitamins. ·用法提示：●通常缩写为V,如vitamin A=VA,为可数名词，复数加s。 9.cut up /kAt Ap/短语切碎；剁碎；抨击 ·核心考点：词性：短语动词 2个核心义：切碎（食物）、抨击（某人） ·必记搭配与例句：●cut up the meat(切碎肉)：Please cut up the meat for cooking: ·cut up sb.(抨击某人)：The newspaper cut up the singer. ·短语拓展：●cut down(砍倒；减少)：cut down trees/cut down expenses 10.from now on/frem nau pn/短语从现在起；今后 ·核心考点：词性：短语副词 1个核心义：从现在起：今后 ·必记搭配与例句：●from now on(用于句首/句末)：From now on,I will study hard./I will study hard from now on. ·易混短语辨析：●from now on（从现在开始，将来时)、from then on(从那时开始，过去时) 1l.uncooked/,n'kkt/adj.未煮过的：生的 ·核心考点：词性：形容词(adj) 1个核心义：未煮过的：生的 ·必记搭配与例句：●uncooked food(生食)：Eating uncooked meat is unhealthy. ●uncooked rice(生米)：We need to cook the uncooked rice. ·构词法：·un-(否定前缀)+cooked(过去分词作形容词) 12.indoors./,m'db:z/ad.在室内；进入室内 初中·教科版·8年级下 寒假专版 ·核心考点：词性：副词(av.) 1个核心义：在室内：进入室内 ·必记搭配与例句：·stay indoors(待在室内)：It's raining,so we stay indoors. ●go indoors(进入室内)：Let's go indoors to avoid the sun. ·易混词辨析：●indoors(副词，在室内)、indoor(形容词，室内的)：indoor activities(室内活 动) 13.fat/faet/n.脂肪；肥肉ad.肥胖的；肥的 ·核心考点：词性：名词(n.)、形容词(ad) 2个核心义：脂肪(n.)、肥胖的(adj) ·必记搭配与例句：·body fat(身体脂肪)：Too much body fat is bad. ●fat person(胖人)：He is a fat person. ·重点派生词：●fatty(形容词)：fatty food(高脂肪食物) 14.cough /kof/V.&n.咳嗽 ·核心考点：词性：动词(v.)、名词(n.) 1个核心义：咳嗽 ·必记搭配与例句：·have a cough(咳嗽)：She has a bad cough. ●cough badly(咳得厉害)：He coughed badly last night.. ·用法提示：●作动词时可及物或不及物：cough(vi.)/cough blood(t.,咳血) 词汇核心考点综合训练 1.一、单项选择 1.There is food in the fridge,so we don't need to buy more. ●A.plenty ·B.plenty of 。C.many ●D.much 2.The weather is today.We can't go for a picnic 。A.awfully 初中·教科版·8年级下 寒假专版 ●B.awful ●C.nice 。D.well 3.We should children from playing with fire. 。A.prevent ·B.stop 。C.keep ●D.all of the above 4.Please me of the meeting time. ●A.inform ·B.tell 。C.speak 。D.say 5.He took a to save the little girl from the river. ●A.risk ·B.scene 。C.imagination ●D.vitamin 6.The police arrived at the of the accident quickly. ●A.scenery ●B.scene ·C.place ·D.spot 7.Children often use their when they play games. 初中·教科版·8年级下 寒假专版 ·A.imagine ●B.imaginative ●C.imagination ·D.imagining 8.Oranges are rich in ●A.vitamin C ●B.vitamins C ●C.vitamin Cs ●D.vitamins Cs 9.Please the meat for cooking. 。A.cut up ●B.cut down ●C.cut of ●D.cut in 10. I will try my best to study English well. ●A.From then on ●B.From now on ●C.Since then 。D.Before now 2.二、根据提示补全句子 1.Eating too much (fat的形容词形式)food is bad for your health. 2.He has a bad (cough的名词形式).He should see a doctor. 3.We need to take (prevent的名词形式)measures to avoid getting sick. 4.She has a good (imagine的名词形式).She can write interesting stories. 初中·教科版·8年级下 寒假专版 5.The (inform的名词形式)you gave me is very useful. 6.It's raining heavily,so we have to stay (indoors的形容词形式)all day.. 7.Don't eat (cook的否定形式)meat.It's not healthy. 8.Smoking is (isk的形容词形式).It can cause many diseases. 3.三、首字母填空 1.There is p of water in the bottle,so you can drink some 2.The movie has a very exciting s.I like it very much. 3.You should i your parents before you go out at night. 4.Staying i is a good choice when the weather is too hot. 5.He is a little f so he decides to exercise more. 4.参考答案 ·一、单项选择 ABCDABCAAB ·二、根据提示补全句子 fatty cough prevention imagination information indoor uncooked risky ·三、首字母填空 plenty scene inform indoors fat