Unit 2 Reading 1 单词（ppt课件）-2022新牛津译林版《高中英语》选择性必修第四册.pptx

1、版本：新译林版本：新译林单元：选择性必修四单元：选择性必修四 Unit 2(Reading)单单词词课课堂堂空白演示单击输入您的封面副标题1.reactre-(back)+act 作出行动回应 (对)作出反应(基本义)；词块：react to/with sth同族词：act,react,reaction,interact,interaction 等2.gentle词块：a gentle smile/voice；派生词：gently,gentleness3.encodeen-(to make)+code(n 代码、密码)；同前缀词：enable,endanger,enlarge,ensure；反

2、义词：decode4.mail意为“电子邮件”时，近义词：email；意为“邮政”时为美式英语，英式为 post词块：by mail,Express Mail Service(EMS)名词动词化：邮寄5.decodede-(not)+code(n 代码、密码)；反义词：encode6.feedback来自短语动词 feed back(反馈)本单元词汇梳理本单元词汇梳理petentcom-(together)+pete(to seek 寻求)+-ent(形容词后缀)反义词：incompetent；派生词：competently同族词：compete,competence,competent,co

3、mpetition,competitive,competitor词块：very/highly/extremely competent8.obtainob-(in front of)+tain(to hold)向前抓住 获得尤指通过自身的努力、技能或工作而“获得”，比 get 正式同根词：contain,entertain,maintain,sustain词块：obtain sth from sb/sth9.suit词源义是“跟随的一群人”，后指配备给随从的统一的制服，最后演变成套装、西服。名词动词化：适宜；派生词：suited,suitable10.negotiate词块：negotiate

4、with sb(for/about sth)11.enterprise词块：undertake/build an enterprise,a state-owned enterprise12.straightforwardstraight(adj 直的)+forward(adv 向前)13.fold一词多义：基本义“折叠”词块：a folding bike；词族：fold,unfold,folding 14.friction隐喻：物体之间的“摩擦”人、国家之间的“摩擦”；近义词：tension词块：friction between.and.15.clarifyclar(clear)+-ify(t

5、o make)使清楚 澄清；讲清楚；同根词：clarity同后缀词：qualify,identify,classify,justify,beautify16.knowledgeableknowledge+-able(形容词后缀)17.empathyem-(in)+path(feeling)+-y(名词后缀)同源词：passion,sympathy18.sympathysym-(with,together)+path(feeling)+-y(名词后缀)一起有相同的感受 同情(心)同前缀词：symphony,symbol同源词：passion,empathy词块：express/feel symp

6、athy for派生词：sympathetic 19.empathizeempathy+-ize(to make)词块：empathize with sb/sth20.approveap-(to)+prove(to test 验证)去验证某人/某物是好的 赞成、赞同；词块：approve of词族：approve,approval,approving,disapprove,disapproval,disapproving 21.tone词块：in a tone22.gain一词多义：基本义“获得”，日常用语中一般用 get词块：gain confidence/weight,gain(sth)f

7、rom,no pain,no gain 23.gesturegest(to carry 携带、运输)+-ure(名词词尾)手势用来运输(传递)信息以达到交流的目的名词动词化：做手势、用手势表示24.preciselyprecise(adj 精确的)+-ly(副词后缀)意为“准确地”时，近义词：exactly重重难难点点词词精精讲讲react一词多义一词多义词族词族obtain正式用语正式用语词根词根tainsuit辨析辨析义义fold一词多一词多义义sympathy构词构词approve辨析义辨析义gain一词多义一词多义react 构词构词:re-(back)+act 作出行动回应 (对)作

8、出反应(基本义)react 意为“对作出反应”、“产生不良反应”时，同介词 to 搭配；意为“起（化学反应）”时，同介词 with 搭配。react vi （对对）作出反应作出反应(respond)：How did the students react to the monitors suggestion?产生不良反应产生不良反应：Some people react badly to certain food.起（化学）反应：起（化学）反应：It shows us how iron reacts with air and with water.react 语义网络图语义网络图（对（对）作出反应

9、）作出反应react（基本义）（基本义）对食物等有不良对食物等有不良“反应反应”物质等发生化学物质等发生化学 “反应反应”起（化学）反应起（化学）反应产生不良反应产生不良反应【必修三必修三 Unit 2】reaction n U&C 反应；作用：反应；作用：回顾回顾 reaction(构词：构词：react+-ion)sbs first/immediate reactionthe public reaction to the news the reaction of metals with oxygen拓展拓展act 同族词同族词active action actively interact

10、react reaction activist activity actress actor act 男演员男演员 女演员女演员 积极的；积极的；活跃的活跃的积极地积极地相互交流；相互影响相互交流；相互影响行动；行为行动；行为（对（对）作出反应作出反应反应；作用反应；作用积极分子积极分子活动活动interaction 交流；互动；相互作用交流；互动；相互作用obtain构词构词：ob-(in front of)+tain(to hold)向前抓住向前抓住 获得获得vt 正式用语正式用语 获得；得到获得；得到 to get sth,especially by making an effort(g

11、et)：At Oxford,he obtained his Masters degree in electrical engineering.These national parks obtained financial support from tourist companies.词根词根tain词根词根词根词根/词缀词缀vtain（to hold 拿住）ob-(in front of)obtainmain(hand)maintaincon-(together)contain sus-(up from below)sustainenter-(among)entertainsuitbusine

12、ss suitswimming suitn C（一套）衣服（一套）衣服：a business/swimming suitsuit 词源义是“跟随的一群人”，后指配备给随从的统一的制服，最后演变成现在的套装、西服。suitvt（服装、颜色等）适合；对（某人）方便；中（服装、颜色等）适合；对（某人）方便；中的意：的意：I found an evening dress that suited me perfectly.If we meet at 9 a.m.,would that suit you?There is Chinese food to suit everyones taste,with

13、traditional dishes from all over China.suit.to 使使适合：适合：A good teacher suits his lesson to the age of his pupils.suited adj不用于名词前，与不用于名词前，与 for/to连用适合的：连用适合的：be best suited to/forSome tests suggest careers that you may be suited to/for.名词动词化名词动词化suit,fit,match 辨析辨析三者都可用作动词，有“适合适合”之意。suit 主要指服装款式、颜色或花

14、样等适合，也可指合乎需要、口味、主要指服装款式、颜色或花样等适合，也可指合乎需要、口味、性格、条件、身份等。性格、条件、身份等。Red and black are colours that suit me very well.The seven oclock train will suit us very well.Very spicy food doesnt suit my stomach.fit 多指大小、形状等合适，引申为多指大小、形状等合适，引申为“一致一致”“”“吻合吻合”。Her coat fits(her)exactly.All the facts certainly fit y

15、our theory.match 多指大小、色调、形状、性质等相匹配、协调。多指大小、色调、形状、性质等相匹配、协调。The curtains and the carpets match perfectly.Do you think these two colours match?衣服穿在身上漂亮用suit，穿在身上不大不小用fit，协调、匹配用match vt&vi 折叠；折起来；合拢折叠；折起来；合拢 反反 unfold：fold the paper in half fold ones armsfold an umbrellaThe flying vehicle has four wing

16、s that fold up so it can be driven like a car.vt 包；裹：包；裹：fold a baby in a blanket 将布料等将布料等“折叠折叠”起来包裹起来包裹人或人或物物基本义基本义fold v n C 褶；褶痕：褶；褶痕：folds of a dress Cut the paper along the fold.folding adj只用于名词前可折叠的：只用于名词前可折叠的：a folding bike unfold vt&vi（使）展开；打开：（使）展开；打开：Henry folds the bill and slowly unfolds

17、 it again.同前缀词：同前缀词：symbol:sym-(with,together)+bol(to throw)扔在一起（进行比较）找出共性，选出有代表性的事物 象征 symphony:sym-(together)+phon(voice,sound)+-y 组合到一起的声音 交响乐；交响曲 system:sy-(together)+stem(to stand)共处一体的事物 系统；体系sympathy构词：构词：sym-(with,together)+pathy(feeling)一起有相同的感受 同情（心）sympathy n C&U 同情（心）：同情（心）：They felt gre

18、at sympathy for the victims.It is in bad times that we value most highly the support and sympathy of our friends.赞同；支持赞同；支持词汇拓展词汇拓展sympathetic adj 同情的；表示同情的：同情的；表示同情的：a sympathetic look/smilefeel sympathetic towards sb 不用于名词前赞同的；支持的不用于名词前赞同的；支持的approve根据所给汉语，用适当的词块完成句子。根据所给汉语，用适当的词块完成句子。You may not

19、_（赞成）his party-boy lifestyle,but hes still your brother.agree with/approve of vt&vi 折叠；折起来；合拢折叠；折起来；合拢 反反 unfold：fold the paper in half fold ones armsfold an umbrellaThe flying vehicle has four wings that fold up so it can be driven like a car.vt 包；裹：包；裹：fold a baby in a blanket 将布料等将布料等“折叠折叠”起来包裹起来

20、包裹人或人或物物基本义基本义fold v n C 褶；褶痕：褶；褶痕：folds of a dress Cut the paper along the fold.folding adj只用于名词前可折叠的：只用于名词前可折叠的：a folding bike unfold vt&vi（使）展开；打开：（使）展开；打开：Henry folds the bill and slowly unfolds it again.同前缀词：同前缀词：symbol:sym-(with,together)+bol(to throw)扔在一起（进行比较）找出共性，选出有代表性的事物 象征 symphony:sym-(

21、together)+phon(voice,sound)+-y 组合到一起的声音 交响乐；交响曲 system:sy-(together)+stem(to stand)共处一体的事物 系统；体系sympathy构词：构词：sym-(with,together)+pathy(feeling)一起有相同的感受 同情（心）sympathy n C&U 同情（心）：同情（心）：They felt great sympathy for the victims.It is in bad times that we value most highly the support and sympathy of our friends.赞同；支持赞同；支持词汇拓展词汇拓展sympathetic adj 同情的；表示同情的：同情的；表示同情的：a sympathetic look/smilefeel sympathetic towards sb 不用于名词前赞同的；支持的不用于名词前赞同的；支持的approve根据所给汉语，用适当的词块完成句子。根据所给汉语，用适当的词块完成句子。You may not _（赞成）his party-boy lifestyle,but hes still your brother.agree with/approve of