选修八unit2单词解析(课堂)
选修8U2单词ppt课件
9．strike vt. & vi.打，撞击，冲击，罢工，打动，划燃，侵 袭，突然想起 n．罢工，打击 be struck with(by)为……所侵袭； 为……所触动(感动) It strikes me that...我觉得……；我的印象是…… strike a match划火柴 strike on/upon打在……上；撞到……上 be on strike举行罢工 go on strike实行罢工
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3．cast vt.&vi. (cast, cast) 投掷；投射；抛 cast aside 抛弃，消除，废除 cast away 抛弃，丢掉，使(船)漂流，(船)失事 cast behind 疏远；把……抛在脑后 cast down 使沮丧/不愉快 cast off 丢弃 cast one‘s eyes over 审视 cast one’s mind back to sth. 回顾，回想 cast light on/upon＝throw light upon 弄清楚
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[即学即练3](1)Don‘t be so _c_a__s_t_d_o_w__n__. Just keep up your spirits.不要这么沮丧，打起精神来！ (2)As soon as they reached the fishing area, the fishermen ___c_a_s_t their nets __i_n_t_o_ the sea. 渔民们一到捕鱼区就把渔网撒进了大海。
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(6)I __o_w__e_ it to you that I finished my work in time. 多亏你帮忙，我才及时完成了工作。 (7)__O__w_i_n_g__ to the rain, they could not come. 由于下雨，他们不能来了。
选修八unit2单词解析(课堂PPT)
辨析 altogether, all together 1.let’s all together sing. 全部，一起
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7.object vi 反对(oppose/be opposed to ) object to sb/sth/doing sth
I object to such treatment .
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.
favour n.帮助；恩惠；赞成；支持；偏袒；偏爱 favourable adj.有利的；支持的 favourite adj.& n.最喜欢的 in one’s favour 对某人有利 do sb a favour=do a favour for sb 帮助某人 owe sb a favour 欠某人情
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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 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.
(完整版)人教版选修八第二单元词汇学习
Unit 2 Cloning 词汇学习1．differ vi. 不同；相异different adj. 不同的有区别的相异的difference n. 不同；不同之处differ from... 不同于……differ in... 在……方面不同A differs fromB in...A与B在……方面不同A differs withB about/on/over... A与B就……意见相左be different from 与……不同make a/some/no difference to sb./sth.对某人/某物有/有些/没有影响或作用And everybody's preferences differ.而各人偏好又是千差万别。
Attitudes towards this hot topic differ widely.人们对此热点话题态度不一。
They differ in size but not in kind.它们的区别只是大小不同而实质一样。
I differ with my classmates on that issue.我在这问题上与班里的同学意见相左。
Opinions on various social questions differ from person to person.有关各种社会问题的意见因人而异。
I cannot see where they differ from each other: to me they look exactly alike.我看不出他们彼此有什么不同，在我看来，他们确实很相像。
They differ with each other on moral standards.关于道德标准,他们的见解不同。
[即学即练](1)Men are all alike in their promises. It is only in their deeds that they ______.人在许诺时都一样，不同之处在于他们的行动。
选修 8 unit 2 cloning 单词识记课件
undertake differ
The process of competition • 1. 全班总动员（必答题） • 2. 我们选哪个（选答题）
Group Show
咱们认认吧… Group1 • altogether • adv.总共；完全地 • procedure • n. 程序；步骤；手续 • • • • • cast • commercial • undertake • medium • exact • vt. 仍；投；掷 adj. 商业的；贸易的 vt. 着手；从事；承担 n.媒体；手段 adj.精确的；准确的
单词识记
Ⅰ.重点单词 different 1．differ vi.不同；相异；→ adj 差别；区分 difference n差异，区别 ； 2．exact adj.精确的；准确的 exactly adv.准确地； 精确地 objection 3．object vi.反对；不赞成→ n．不赞成；反 对；异议 → objectiveadj.客观的 4．medium 媒介；手段；工具→ media n．(pl)媒 体；手段；工具 accumulation n. 5． accumulate vt.vi→ 积累；积聚 → 积累 6．retire vi. 退休；离开 →退休；辞职 n. retirement . 7．assumption n.假定；设想→ assume vt.承担；假 定；呈现→ assumed adj . 假定的；假装的；假冒的 mere 8．merely adv.仅；只；不过→ adj.纯粹
咱们认认吧…
Group2
• • • • • • •
carrier object flour forbid exact attain opera
选修8unit2单词详解
1. differ vi. 不同于，意见相左
differ from 不同于...
differ in...在...方面不同
My younger brother and I differ from each other in many ways. 我弟弟和我在许多方面都不同。
6. cast v.扔，投掷
cast down 使失望（一般用于被动语态）
翻译：听到这个坏消息之后，她沮丧了好几天。 She was cast down for several days after she heard the bad news.
7. object vi. 反对，不赞成
object to sb/sth 反对某人/某事
in ______favour of it.
10. I owe_______to my teacher that I have made great progress in it English. 11. --Do you know where my blue coat is?
looking -- Don't bother _______(look) for it, I'm sure it will turn up some
拓展；
different adj. 不同的，有区别的 difference n. 差别，差异
2. exact adj. 精确的，准确的
to be exact(=exactly speaking) 确切地说
翻译：我不知道这个房间的确切面积。 I don't know the exact size of the room.
对..有影响
选修8-Unit2-知识点讲解
选修8-Unit2-知识点讲解选修八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。
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.
人教版高二英语选修八 Unit2 Cloning 知识点讲解
Unit 2 Working the land(耕作土地，在田间耕作) 一．单词考点Section A Warming-up,Reading&Comprehending1.struggle的用法⑴作vi.时，“斗争；拼搏；努力”搭配：for...为……而斗争struggle against...与……作斗争with...与……并肩作战to do sth....努力做某事eg:Millions of people are struggling for survival.⑵作n.时，[C]“斗争；奋斗；努力”搭配：with sb.for sth.与某人一起支持某事的斗争a struggle with sb.against sth.与某人一起反对某事的斗争with sb.to do sth.与某人一起努力做某事between A and B A与B之间的斗争eg:It is a struggle between good and evil.2.hunger的用法⑴作n时，[U]“饥饿”[C]“渴望，欲望”搭配：with hunger因为/由于饥饿die of hunger死于饥饿have a (strong) hunger for sth.(强烈)渴望某物eg:She has a strong hunger for knowledge.⑵作vi时，“渴求；渴望得到”搭配：hunger for/after...渴望得到hunger to do sth.渴望做某事eg:We all hunger for others’ understanding.3.disturbingadj 引起烦恼的；令人不安的—disturbedadj(感到)心烦意乱的；烦恼的—disturbvt使不安eg:What he said was disturbing.4.expand v “使变大；伸展”的用法搭配：expand...into...把……扩展/发展成……expand into...扩展/膨胀成……expand (up)on阐述，详谈eg:①Tom is expanding his story into a novel.②Expand this sentence into a paragraph.区别：expand,extend,enlarge,stretch⑴expand指范围、体积的扩大，尤指向四面八方扩大、扩张。