选修八unit2单词
【维词课堂】 人教选修八Unit2 cast
2. cast
图1
图2
细心的亲可能会注意到英文电影片尾里的演员表用cast来表达，而我们描述某影视大片有“强大的演员阵容”，可用a strong cast。
我们知道，电戏剧、影视是近代的产物，cast 用于表示演员阵容肯定是衍生出来的释义，那cast前世又是怎么一回事呢？和小V一起探索cast！
词源追溯
由上图的词源展示可知，cast的名词由动词而来。
cast动词的词源义为“扔”，在历史发展过程中，针对不同的对象和主体而衍生出其他释义。
其释义关系图如下：
维词展示
cast虽然词频较低，但是释义丰富，多出现在高考阅读理解中。
结合语境及其相关词语搭配，能根据其词源义认知各层释义即可。
练一练
在横线上写出cast在句子中的释义。
________ 1. Again she cast a look toward the window. (2011 浙江阅读理解)
________ 2. The play is being cast in both the US and Britain.
________ 3. The site where Zhang Xianzhong cast lumps (块) of pure silver is being dug.
________ 4. To qualify, candidates must get at least 10% of the votes cast.
Keys: 1. 投射 2. 挑选演员 3. 扔；投 4. 投票。
选修8第二单元单词
高中英语选修8 Unit 2differ vi. 不同；相异exact adj. 精确的；准确的△cutting n. 剪枝；剪报；剪纸twin n. 双胞胎之一；孪生儿之一adj. 成对的；成双的△identical adj. 同一的；一模一样的commercial adj. 商业的；贸易的straightforward adj. 简单的；直接的；坦率的△complicated adj. 复杂的；难懂的undertake vt. 着手；从事；承担pay off 得到好结果；取得成功；偿清breakthrough n. 突破procedure n. 程序；步骤；手续△nucleus n. 原子核；中心△somatic adj. 躯体的；肉体的；细胞体的△embryo n. 胚；胚胎；萌芽时期carrier n. 携带者；搬运工；运输工具cast vt. 扔；投；掷cast down 沮丧；不愉快altogether adv. 总共；完全地arbitrary adj. 任意的△fate n. 命运；天命correction n. 改正；纠正；修正object vi. 反对；不赞成objection n. 不赞成；反对；异议△impact n. 撞击；冲击；巨大的影响medium n. (pl media) 媒介；手段；工具the media 大众传播媒体（如电视、报纸等）obtain vt. 获得；赢得attain vt. 获得；到达（水平、年龄、状况等）moral adj. 道德（上）的；伦理的conservative adj. 保守的；守旧的forbid vt. 禁止；不准accumulate vt. 积累；聚保in favour of 赞成；支持side road 旁路；支线；岔道（<美>sidewalk）constitution n. 宪法；章程compulsory adj. 必须做的；义务的；强迫的；强制的opera n. 歌剧；歌剧团；歌剧院chorus n. 合唱；合唱队loaf n. 一条（面包）flour n. 面粉owe vt. 欠（账、钱、人情等）；归功于……shortly adv. 立刻；不久retire vi. 退休；离开bother vt. 打扰vi. 操心n. 烦扰(be) bound to (do) …一定或注定（做）……assumption n. 假定；设想regulation n. 规则；规章；法规△nonsense n. 胡说；无稽之谈；废话△popularity n. 受人喜爱；流行strike vi. & vt. 打；撞击；罢工n. 罢工strike …into one’s heart 使……刻骨铭心△calf n. 小牛；牛犊from time to time 不时；偶尔bring back to life 使复生；使复活initial adj. 最初的；开始的vain adj. 虚荣的；自负的；徒劳的in vain 白费力气；枉费心机resist vt. 抵抗；对抗drawback n. 缺点；不利条件merely adv. 仅；只；不过△restore vt. 恢复；使恢复原状；重建decoration n. 装饰unable adj. 不能的；不会的feather n. 羽毛△fairly adv. 公平地；相当地in good/poor condition 状况很好（坏）；情况很好（坏）turkey n. 火鸡△dye vt. 给……染色；染n. 染色剂claw n. 爪；脚爪adore vt. 崇拜；爱慕；喜爱hatch vt. & vi. 孵出；孵卵；孵化reasonable adj. 合情理的；讲道理的；公道的。
选修八Unit_2 Cloning原文翻译
Unit 2 克隆：他将把我们引向何方？
克隆一直与我们同在，而如今它还要坚持下去。这是一种用来生产与原型完全相同的动植物的方法。当园艺师从生长的植物上剪下枝条来培植新植物时，就会产生这种现象。这种现象也发生在动物身上，从同一个原生卵子产生性别和相貌相同的双胞胎也是克隆。实际上，这些都是自然克隆现象。
On the one hand, the whole scientific world followed the progress of the first successful clone, Dolly the sheep. The fact that she seemed to develop normally was very encouraging. Then came the disturbing news that Dolly had become seriously ill. Cloning scientists were cast down to find that Dolly's illnesses were more appropriate to a much older animal. Altogether Dolly lived six and a half years, half the length of the life of the original sheep. Sadly the same arbitrary fate affected other species, such as cloned mice. The questions that concerned all scientists were: "Would this be a major difficulty for all cloned animals? Would it happen forever? Could it be solved if corrections were made in their research procedure?"
新课标人教版选修八Book8 Unit2 Vocabulary
• 5 forbid vt. (forbade/forbad, forbidden) 禁止；反对 forbid sb. to do sth. 禁止某人做某事 forbid doing sth. 禁止做某事 ①学校不允许学生吸烟。 • The school forbids students to smoke. ②老师严禁带手机到教室。 The teacher forbids carrying cellphones to the classroom. • 6 owe sb. sth.＝owe sth. to sb.欠某人某物 • owe sb. sth. for...因某物欠某人的钱 • owe sb. sth.＝owe sth. to sb.欠某人某物；把……归功于…… • owing to由于 • (1)I owed the garage $20 for the new tyre. 因那个新轮胎我欠汽 车修理厂20美元。 • (2) He owed his success to hard work and practice. 他把他的成 功归功于努力工作和实践 • (3)你欠我一个微笑。 • He owed me a smile./ He owed a smile to me. • (4)他把成功归功于母亲。He owed his success to his mother. • (5)This accident was owing to (由于)his careless driving．
The two buildings differ from each other in style.
• • ②你想通过成为志愿者的方式来作出贡献吗？（起作用）---by means of/ make a difference • 2 pay off得到好结果；取得成功；偿清 • ①They ____________ their debt after ten years 十年后他们还清了债务。 paid off paid off • ②They took a risk but it ____________. 他们冒了很大的风险，但事情成功 了 • pay 其他短语： • 付……的钱；为……而付出代价 pay for 偿付；报答；向……报复 • pay back 访问 pay a visit to
选修8 Unit2 知识点
选修八Unit2 知识点Ⅰ单词1.differ :vi 不同，相异；意见不合differ from : 与…不同differ in : 在…方面不同differ with sb on/about sth :与某人在某事上意见不同be different from :不同于be different in : 在…不同make a/no difference （to）: 有/无关系（影响、作用）①中文与英文在许多方面不同。
Chinese differs from English in many different aspects.②The husband differs with his wife on who is to take charge of the money.③It makes no difference to me ﹙与我无关﹚ whether you are going to stay.2.undertake :v 从事，承担，负责，保证（undertook,undertaken）Undertake a task/responsibility :承担任务/责任Undertake to do sth : 承诺/答应/着手做某事Undertake that : 保证…① She will undertake the organization work ﹙将负责组织工作﹚of the whole project.② I undertake to pay back the money in a week﹙保证一周内还钱﹚③ The travel agent undertook that you would enjoy the trip﹙保证你会喜欢这次旅行﹚.3 object :vi 反对；不赞成，抗议N 物体，目标，对象Objection ：n 不赞成，反对，异议 Objective ：adj 客观的;基于事实的Object to sb/sth :反对，抗议…Object that ：抗议…Have an/no objection to (doing) sth : (不)反对…Raise a storm of objections ：引起一阵强烈的反对There is no objection to sth :没设么不可以的①犀利哥是同情的对象。
(完整版)人教高中英语选修八全册重点单词解析unit1unit2unit3unit4unit5
Unit1 a land of diversity1.illustrate v. 说明, 阐明, 图解, 配图The company's bank statements illustrate its success. 这家公司的银行报表说明了它的成功。
This diagram will illustrate what I mean. 这个图表可说明我的意思She decides to use charts and diagrams to illustrate. 她决定用图表来说明。
Let me illustrate. 让我举出这样一个例子来illustrate by facts 用事实说明Illustrate five of your words. 图解你的五个单词The publisher will illustrate the book .那个出版商将给这本书配图。
illustrated adj. 有插图的illustrative adj. 解说性的,说明性的illustration n. 1.（书、杂志等中的）插图, 图表, 图案 例证, 实例; 说明, 图解, 图示Here is another illustration: 这是另外一个例子。
Acting or serving as an illustration. 作为解释说明的Take an airline as an illustration. 以航空公司为例子.2.distinct adj. 截然不同的; 清晰的,明显的Those two ideas are quite distinct. 这两个主意完全不同。
Gold is distinct from iron. 金在性质上不同于铁。
There is a distinct improvement in your spoken English. 你的英语口语有明显的进步。
2018-2019学年高中新创新一轮复习英语讲义：选修八 Unit 2 Cloning 含答案
Unit 2 Cloning一、刷黑板——词汇全听写(先过识记默写关)Ⅰ.阅读词汇(英译汉)[第一屏听写]1．twin n．双胞胎之一；孪生儿之一adj.成对的；成双的2．straightforward adj.简单的；直接的；坦率的3．carrier n. 携带者；搬运工；运输工具4．arbitrary adj.任意的5．fate n. 命运；天命[第二屏听写]6．medium n．(pl.media)媒介；手段；工具7．the media 大众传播媒体(如电视、报纸等) 8．conservative adj.保守的；守旧的9．constitution n. 宪法；章程10．compulsory adj.必须做的；义务的；强迫的；强制的11．opera n. 歌剧；歌剧团；歌剧院[第三屏听写]12．chorus n．合唱；合唱队13．loaf n. 一条(面包)14．flour n. 面粉15．claw n. 爪；脚爪16．turkey n. 火鸡17．feather n. 羽毛Ⅱ.高频词汇(汉译英)[第四屏听写]1．differ v i.不同；相异2．exact adj.精确的；准确的3．identical adj.同一的；一模一样的4．commercial_ adj.商业的；贸易的5．complicated adj.复杂的；难懂的6．undertake v t.着手；从事；承担7．breakthrough n. 突破[第五屏听写]8．procedure n．程序；步骤；手续9．cast v t.扔；投；掷10．altogether ad v. 总共；完全地11．correction n. 改正；纠正；修正12．object v i.反对；不赞成13．objection n. 不赞成；反对；异议14．obtain v t.获得；赢得[第六屏听写]15．attain v t.获得；到达(水平、年龄、状况等) 16．forbid v t.禁止；不准17．accumulate v t.&v i.积累；聚积18．owe v t.欠(账、钱、人情等)；归功于……19．shortly ad v. 立刻；不久20．retire v i.退休；离开[第七屏听写]21．bother v t.打扰v i.操心n. 烦扰22．assumption n. 假定；设想23．regulation n. 规则；规章；法规24．popularity n. 受人喜爱；流行25．strike_ v t.&v i.打；撞击；罢工n. 罢工[第八屏听写]26．adore v t.崇拜；爱慕；喜爱27．hatch v t.&v i.孵出；孵卵；孵化28．reasonable adj.合情理的；讲道理的；公道的29．resist v t.抵抗；对抗30．drawback n. 缺点；不利条件31．merely ad v. 仅；只；不过32．decoration n. 装饰[第九屏听写]33．unable adj.不能的；不会的34．initial adj.最初的；开始的35．impact n. 撞击；冲击；巨大的影响36．moral adj.道德(上)的；伦理的37．vain adj.虚荣的；自负的；徒劳的38．in_vain 白费力气；枉费心机39．(be)_bound_to_(do)．.. 一定或注定(做)……[第十屏听写]40．strike_..._into_one's_heart使……刻骨铭心41．from_time_to_time_ 不时；偶尔42．bring_back_to_life 使复生；使复活43．in_favour_of 赞成；支持44．in_good/poor_condition 状况很好(坏)；情况很好(坏) 45．cast_down 使失望；使沮丧46．pay_off 得到好结果；取得成功；偿清二、刷清单——热身自盘点(再过基本应用关) (一)核心单词(二)常用短语(三)经典句式一、过重点单词——纵引横联超人一点1．object vi.反对；不赞成[经典例句] Unless our manager objects to Tom's joining the club, we shall accept him as a member.我们愿意接受汤姆为俱乐部的成员，除非经理反对他加入本俱乐部。
Unit 2 词汇课件-2021-2022学年高中英语人教新课标选修八
用于pay off sth 或 pay sth off结构。 通常接account, debt, loan等作宾语。
2. He studied hard before the examination, and it paid off. He
made an A.
取得成功；得到好结果 vi
用于sth pays off 结构。通常用effort, hard work, persistence等作主语。
失去兴趣
12. The boys started to switch off after the first speech.
13. The effects of the drug began to wear off. 逐渐消失
缩合词
telecast = television + (broad)cast 电视广播
newscast = news + (broad)cast 新闻广播 sportscast ／ sportcast = sport + (broad)cast 体育节目
单词 cast 的基本义是“扔、投掷”，衍生出了大量衍生义，如 “浇铸”(把融化的铁水“扔”到模具里)、“钓鱼”(把钓钩“扔” 出去)、“计算、加”(扔石子来计算)、“演员阵容”(把演员“扔” 到舞台上)。词组习语：cast a glance (一瞥)；cast an actor in a play (为某戏剧选演员)；cast a movie (为电影选角)；casting director (选 角导演)；cast sb as (将某人描绘为)。
人教⑧ – 2
③ forbid (sb) doing sth:
The regulations forbid smoking in this room.
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objection n.
n.撞击；冲击；巨大的影响
△impact n
n.媒介；手段；工具
medium n.
大众传播媒体(如电视、报纸等) the media
vt.获得；赢得
obtain vt.
vt.获得；到达（水平、年龄、状况）attain vt.
adj.道德（上）的；伦理的
moral
adj.保守的；守旧的
when the manager accepted his
proposal. (4) She _p_a_id_ 200 yuan _fo_r_ (付……的钱)
Tom’s bike.
( ) －Mom, I can’t see any point in working hard at all the subjects at school. －Come on, dear. Years of hard work will surely _____ in the future of your career. A. make sure B. pay off C. bring back D. pay back
2. undertake (undertake-undertook-undertaken) vt. 承担,从事；着手做某事;答应，同意
undertake responsibility/a task/a project undertake to do…同意;答应；着手做某事 undertake that…同意；答应；担保
adj. 必须做的；义务的；强迫的；强制的 compulsory adj.
n. 歌剧；歌剧团；歌剧院
opera n.
n. 合唱；合唱队
chorus n.
n. 一条（面包）
loaf n.
n. 面粉
flour n.
vt. 欠（账、钱、人情等）；归功于 owe vt.
adv. 立刻；不久
shortly adv.
conservative adj.
vt.禁止；不准
forbid vt.
(forbade,forbad; forbidden)
vt. 积累；聚保
accumulate vt.
赞成；支持
in favour of
旁路；支线；岔道
side road（sidewalk)
n. 宪法；章程
constitution n.
vt.扔；投；掷
cast vt. (cast, cast)
沮丧；不愉快
casttogether adv
adj.任意的
arbitrary adj.
n.命运；天命
△fate n.
n.改正；纠正；修正
correction n.
vi.反对；不赞成
object vi.
n.不赞成；反对；异议
vi. 不同；相异 adj. 精确的；准确的 n. 剪枝；剪报；剪纸 n. 双胞胎之一；孪生儿之一 adj.成对的；成双的 adj. 同一的；一模一样的 adj. 商业的；贸易的 adj. 简单的；直接的；坦率的 adj. 复杂的；难懂的 着手；从事；承担
得到好结果；取得成功；偿清
n.突破 n.程序；步骤；手续 n.原子核；中心 adj.躯体的；肉体的；细胞体的 n.胚；胚胎；萌牙时期 n.携带者；搬运工；运输工具
vi. 退休；离开
retire vi.
vt. 打扰vi.操心 n.烦扰
bother vt.
一定或注定（做）……
(be) bound to (do)
1. differ
vi. 相异；有区别；不同于 1)A differ from B in sth A和B在...方面不同
在这方面法语和英语不同。 French differs from English in this aspect.
differ vi. exact adj. △cutting n. twin n.
△identical adj. commercial adj. straightforward adj. △complicated adj. undertake vt. (undertook, undertaken) pay off breakthrough n procedure n △nucleus n. △somatic adj. △embryo n. carrier n.
adj. different
be different from
[考例] Leaves are found on all kinds of trees, but they differ greatly ____ size and shape. (上海2007) A. on B. from C. by D. in
[词语联想]
pay back 归还；报复
pay for 为……而付款；为……付出代价
用pay 相关短评的适当形式完成句子 (1) I’ll _p_a_y_y_o_u__b_a_c_k(还你钱) next month. (2) You must _p_a_y_f_o_r( 为……付出代价)
your rude words. (3) _H_i_s_e_f_fo_r_t_s_p_a_i_d_o_f_f_ (他努力没有白费)
她答应三个月之内还我钱。 She undertook to pay back the money in three months. 我保证你一定会喜欢这次旅行。 I can undertake that you will enjoy the trip.
3. pay off (1) vi.取得成功，得到回报 (无被动) 约翰在考试前的努力学习没有白费。 Joh’s hard work before the examination paid off 你的计划成功了吗？ Did you plan pay off? (2)偿清 vt. 他所有的债务都是用现金付清的。 All his debt was paid off with cash.
2).differ with/from sb on/about sth 在某事上不同意某人
在这个问题上我不同意你的看法。 I have to differ with/from you on the question.
n. difference
make a/no difference to sb tell the difference between A and B