Unit 3 单词详解表 2025-2026学年外研版英语八年级上册
外研版八年级上册Unit 3 单词详解表
单词 | 常见搭配 | 考点提示 | 经典例句 |
fair /feə/ (n. 展览会) | a book fair(书展);a trade fair(商品交易会);art fair(艺术展) | 可数名词,复数为fairs;也可作形容词表“公平的;晴朗的”(fair play;fair weather) | We are going to a science fair this weekend.The fair will be held in the city hall. |
block /blɒk/ (n. 一块(指木头、石头等有直边的硬物)) | a block of wood(一块木头);a block of stone(一块石头);a block of ice(一块冰) | 可数名词,复数为blocks;也可表“街区;大楼”(a city block;an office block) | She bought a block of chocolate for her sister.The building is on the next block. |
artificial /ˌɑːtɪˈfɪʃl/ (adj. 人造的,人工的) | artificial flowers(人造花);artificial intelligence(人工智能,AI);artificial light(人造光) | 形容词,可作定语或表语;反义词为natural(自然的) | These are artificial roses, not real ones.Artificial intelligence is developing fast now. |
condition /kənˈdɪʃn/ (n. 长期疾病) | a heart condition(心脏病);have a medical condition(有慢性病);in good condition(状况良好) | 可数名词(表“疾病”)/不可数名词(表“状况;条件”);复数形式conditions可表“环境;条件” | He has a serious heart condition.The car is still in good condition after years of use. |
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cost /kɒst/ (v. 价格为,需支付(某一数量的钱)) | cost sb. some money(花费某人多少钱);The book costs 20 yuan.(这本书20元) | 不规则动词,过去式/过去分词为cost;主语通常是物,不能是人;也可作名词表“成本;费用”(the cost of living) | The new phone costs me 5000 yuan.The cost of the trip is about 1000 dollars. |
lend /lend/ (v. 借给,借出) | lend sb. sth.(借给某人某物);lend sth. to sb.(把某物借给某人);lend (sb.) a hand(帮助(某人)做事) | 不规则动词,过去式/过去分词为lent;与borrow区分,lend表“借出”,borrow表“借入”(borrow sth. from sb.) | Can you lend me your pen for a minute?He lent a hand to carry the heavy box. |
3-D /ˌθriːˈdiː/ (adj. 三维的,立体的) | 3-D movie(3D电影);3-D printing(3D打印);3-D model(3D模型) | 复合形容词,用于修饰名词;也可写作3D,无复数形式 | We watched a 3-D movie yesterday evening.3-D printing is a new technology in modern times. |
printer /ˈprɪntə/ (n. 打印机) | a laser printer(激光打印机);a 3-D printer(3D打印机);use a printer(使用打印机) | 可数名词,复数为printers;动词形式为print(打印;印刷) | I need to buy a new printer for my home office.Please connect your computer to the printer first. |
invent /ɪnˈvent/ (v. 发明,创造) | invent a machine(发明一台机器);invent a new game(发明一种新游戏) | 及物动词;名词形式为invention(发明物,可数)/inventor(发明家,可数) | Edison invented the light bulb in 1879.He wants to invent a new kind of robot. |
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weigh /weɪ/ (v. 重,重量是……) | weigh 50 kilos(重50公斤);weigh sth.(称某物的重量);How much do you weigh?(你体重多少?) | 不及物动词(表“重量是……”)/及物动词(表“称重量”);名词形式为weight(重量) | The box weighs about 10 kilograms.She weighed the apples before buying them. |
kilogram /ˈkɪləɡræm/ (n. 千克,公斤) | a kilogram of rice(一千克大米);two kilograms of meat(两千克肉) | 可数名词,复数为kilograms;缩写为kg;也可写作kilo(口语中) | I need three kilograms of flour for the cake.The baby weighs 4 kilos at birth. |
fix /fɪks/ (v. 解决(问题)) | fix a problem(解决问题);fix a mistake(纠正错误);fix the computer(修理电脑) | 及物动词;也可表“修理;安装;固定”(fix the TV;fix a shelf on the wall) | Can you help me fix this math problem?My father fixed the broken bike yesterday. |
invention /ɪnˈvenʃn/ (n. 发明(物)) | a great invention(一项伟大的发明);scientific inventions(科学发明);the invention of the phone(电话的发明) | 可数/不可数名词,表“发明物”时可数,表“发明这一行为”时不可数;动词形式为invent | The computer is one of the most important inventions in history.His invention helped many people in daily life. |
download /ˌdaʊnˈləʊd/ (v. 下载) | download a file(下载文件);download music(下载音乐);download an app(下载应用程序 | 及物动词;反义词为upload(上传);名词形式为download(下载,可数/不可数) | I downloaded some English songs from the Internet.Please download the document to your computer. |
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