Unit 4 Waves of Technology-2026-2027学年高中英语词汇精讲精练必修第二册（冀教版）

Unit 4 Waves of Technology 词汇精讲精练 核心词汇概览： normal metal lap convenient Wi-Fi download update blog digital organized battery credit consumer operation efficient track calorie position rate wrist clip onto experiment despite feature 词汇精讲 序号 单词/短语 词汇讲解 convenient 释义：adj.方便的：实用的 /kan'vi:niant/ 词汇变形：convenience(n.)方便：conveniently(adv)方便地 搭配：be convenient for/tosb.对某人方便；It is convenient(for sb) to do sth.某人做某事方便；at one''s convenience在某人方便时 辨析：不可用“人”作主语，如不能说“I am convenient..” 例句：The new subway makes it convenient for people to travel around the city 新地铁使人们出行更加便捷。 2 download 释义：v.下载 /,daun'laod/ 词汇变形：downloadable(adj)可下载的；download(血)下载（的文 件) 搭配：download sth.fiom.从…下载；download an app下载应 用；download speed下载速度 辨析：与upload（上传)相对；名词可数，如：a quick download 例句：You can download the song from the Internet for free, 你可以从网上免费下载这首歌。 update 释义：v.更新：使现代化n.更新：最新消息 ,Ap'dert/ 词汇变形：updated(adj)更新的；up-to-date(adj,)最新的 搭配：update sth.更新某物：keep sb.updated on sth.让某人了解… 的最新进展；software update软件更新 辨析：作名词时常见短语：a news update新闻快讯 例句：Please update your antivirus software regularly to protect your computer. 请定期更新杀毒软件以保护你的计算机： digital 释义：adj.数码的；数字的 /'drd3tl/ 词汇变形：digitally(adv.)数字化地；digitalize(v.)数字化 搭配：digital camera数码相机：digital age数字时代；digital signal数字信号 辨析：与analog(模拟的)相对 例句：Nowadays,most people own a digital device like a smarphone or tablet. 如今，大多数人拥有数字设备，如智能手机或平板电脑。 organized 释义：adj.有条理的；有组织的 /'o:ganaizd/ 词汇变形：organize(v)组织；organization(m)组织；organizer(n) 组织者 搭配：well-organized有条理的：organized crime有组织犯罪；get organized使有条理 辨析：区分organized(有条理的)与organizational(组织的) 例句：She is a very organized perso,;her desk is always tidy. 她是一个很有条理的人：她的桌子总是整洁的。 6 efficient 释义：adj.效率高的：有功效的 /'fifnt/ 词汇变形：efficiency(n)效率；efficiently(adv)高效地 搭配：beef伍cient in doing sth.做某事高效；energy-efficient节能 的 辨析：efficient侧重“高效率”，effective侧重“效果好” 例句：This new machine is more efficient than the old one, 这台新机器比旧机器效率更高。 track 释义：v.跟踪；追踪n.轨道；路径 /traek/ 词汇变形：tracker)追踪者；tracking(m)追踪 搭配：rack sb.sth.追踪；keep track of记录、了解…的动态；lose track of失去…的线索；on track在轨道上、进展顺利 辨析：注意动词与名词的不同用法 例句：Scientists use satellites to track the movement of wildlife 科学家使用卫星追踪野生动物的活动。 8 experiment 释义：n.实验v.进行实验 /ik'sperimant/ 词汇变形：experimental(adj)实验的；experimentally(adv.)通过实 验；experimentation(n.)实验过程 搭配：do/conduct/carry out an experiment做实验；experiment on/with用…做实验；experiment in在…方面实验 辨析：作动词时不及物，常接on/with 例句：The students are conducting an experiment in the chemistry lab. 学生们正在化学实验室做实验。 despite 释义：prep.即使；尽管 /dr'spait/ 词汇变形：同义词in spite of;注意后接名词、动名词或what从句， 不接句子 搭配：despitesth.尽管某事；despite doingsth.尽管做了某事； despite the fact that..尽管事实是… 辨析：与in spite of用法完全相同，但despite更正式 例句：Despite the heavy rain,.they continued the game. 尽管下着大雨，他们还是继续比赛。 10 feature 释义∶n.特征：特色V.以…为特色；由…主演 /'fi:tfa(r)/ 词汇变形：featured(adj)有…特色的；featureless(adj)无特色的 搭配：main feature主要特征；feature in在…中起重要作用； feature film故事片；a special feature特别报道 辨析：作动词时常用被动be featured in..;作名词时与 characteristic同义，但更具体 例句：The new smartphone has many advanced features. 这款新智能手机有许多先进功能。 二、专项训练 (一)单句填空（在空白处填入1个适当的单词或括号内单词的正确形式。） 1.Itis (convenience)for us to shop online anytime. 2.You can (download)the latest software from the official website 3.The system needs to be (update)regularly to ensure safety. 4.Many people prefer (digit)cameras over traditional film cameras 5.She is a highly (organize)person who always plans ahead. 6.The new method is much more (efficiency)than the old one 7.The police are (track)the suspect's movements carefully. 8.The scientist (experiment)with different chemicals to find a cure 9 (despite)the bad weather,they finished the race on time. 10.One (feature)ofthis smartphone is its long battery life. 11.Make sure you keep track of your expenses 12.The (track)system on the app helps users find their lost phones. (二)单句表达（根据汉语提示，用本单元核心词汇/短语完成句子。） 1对我们来说，在网上查找信息很方便。 Itis for us to search for information online 2.请从官网下载最新版本。 Please the latest version the official website. 3你需要定期更新你的密码。 You need to your password 4.数字时代改变了我们的生活方式。 The age has changed our way of life 5他是一个有条理的学生，总能按时完成作业。 He is an student,always finishing homework on time. 6这台机器比那台更高效。 This machine is than that one. 7警察正在追踪逃跑的车辆 The police are the escaping car. 8尽管很累，她还是坚持完成了实验。 the tiredness,she insisted on finishing the experiment. 9这款手机的主要特色是它的长续航。 The main ofthis phone is its long battery life. (三)短文填空 With the rapid development of technology,our daily life has become more 1 (convenient)than ever before.We can 2. (download)various apps and 3. (update)our devices easily.The 4. (digit)age brings us many 5. (feature) like instant communication.However,being 6. _(organize)and 7. (efficiency)is still important.For example,scientists 8. (track)climate change through experiments.9. (despite)some challenges,we continue to innovate.One important 10. (experiment)in renewable energy is showing promising results.We must 11. (track)our progress to ensure success.The 12. (track)system in our devices provides real-time data 三、参考答案 (一)单句填空 1.convenient;2.download;3.updated;4.digital;5.organized;6.efficient;7.tracking; 8.experimented;9.Despite;10.feature;11.of;12.tracking (二)单句表达 1.convenient for;2.download;from;3.update;regularly;4.digital;5.organized;6.more efficient;7.tracking;8.Despite;9.feature (三)短文填空 1.convenient;2.download;3.update;4.digital;5.features;6.organized;7.efficient; 8.track;9.Despite;10.experiment;11.track;12.tracking