Unit 4 Information Technology 高频单词知识课件-2023-2024学年高中英语北师大版（2019）必修第二册

Unit 4 高频单词精讲 1 1 | convenience n.方便;便利;便利的事物 　　provide convenience/education/information提供便利/教育/信息  高频词汇精讲 词汇 情景导学 For convenience, I keep my table lamp near my bed when I am sleeping.为方便起见,我睡觉时 把我的台灯放在床边。 Please give me an answer at your convenience.请在你方便时给我回复。  用法归纳 ①　    sb.’s convenience在某人方便时;在某人适宜的地点 ②　    (the sake of) convenience为方便起见 at for 词汇拓展 ①convenient adj.方便的;附近的 be convenient for sb.对某人来说是方便的 It is/was convenient (for sb.) to do sth.做某事(对某人来说)很方便 •I’ll visit you next weekend if it is convenient for you.如果你方便的话,我下周末就去看望你。 ②conveniently adv.方便地 •Their jaws were not conveniently structured.他们的下颚构造不方便(发音)。 ③inconvenience n.不便 ④inconvenient adj.不方便的 2 | effect n.效应;影响;效力,作用 　　Effects/Impacts效应/影响 (教材P6) 词汇 情景导学 Some ancient laws are still in effect now.有些古老的法律现在仍然有效。 They must finish the work before the new tax rates come into effect.在新税率生效前,他们必 须完成工作。 These new laws should be brought/put into effect as soon as possible.这些新法律应该尽快实 行。 The successful signing of RCEP will have a positive long-term effect on the development of China.《区域全面经济伙伴关系协定》的成功签署将对中国的发展产生长期的积极影 响。　      用法归纳 ①have an effect 　    ...对……有影响/起作用 ②　     effect有效;在实施中;实际上 ③come 　     effect生效;开始实施 ④bring/put...　     effect使……生效;实行/实施…… on in into into 词汇拓展 ①effective adj.有效的;起作用的;实际的 •The measures were effective.这些措施是有效的。 ②effectively adv.有效地;实际上 3 | addicted adj.对……着迷的;上瘾的;沉迷的 　　makes us self-focused/live in an unreal world/addicted to it使我们以自我为中心/活在不 真实的世界里/对它着迷 (教材P6) 词汇 情景导学 He was addicted to playing computer games and he didn’t see the person who came into his room.他沉迷于玩电脑游戏,没有看见进他房间的人。 用法归纳 be/become addicted 　    (doing)...对(做)……上瘾;沉迷于(做)…… to 词汇拓展 ①addict n.对……入迷的人;吸毒成瘾的人 a work addict工作狂 ②addiction n.入迷;嗜好;瘾 (an/one’s) addiction to...(一种/某人)对……的嗜好/瘾 •You should fight your addiction to alcohol.你应该戒除酒瘾。 ③addictive adj.使人上瘾的 •The boy is seriously addicted to video games and he finds them very addictive, thus turning into a video game addict.这个