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2015-2016学年高中英语人教版选修8 UNIT 2 PERIOD 2 VOCABULARY 课件.ppt

1、Unit2 Cloning vocabulary 1、学习本单元的重点词汇。2、掌握辨析词语的方法。3、综合运用所学词汇。学习本单元的重点词汇。以点带面,在了解词义的基础上,结合例句,掌握时态和人称数的变化等词语运用的技巧,即学会灵活使用词语的适当形式。并列出相关短语,以更灵活地掌握这些重点词汇。接着还有练习题,有助于记忆和运用刚学到的重点词汇。掌握辨析词语的方法,有助于写作能力的提高。接下来也有练习题,有助于记忆和运用刚领会其意思的词汇或短语。1.differ vi.不同;相异difference n.不同之处different adj.不同的例句1).Their house differs

2、 from mine in having no garage.他们的房子与我的不同,区别在于他们的没有车库。2).The two sides still differ with each other over the question of pay.双方在报酬的问题上仍各持己见。重点用法A differs from B in.A与B在.方面不同A differs with B about/on/over.A与B就.意见相左重点词汇1.differ vi.不同;相异difference n.不同之处different adj.不同的练习 翻译或按要求填空。1).The two squares d

3、iffer _(介词)color but not _(介词)size.2).The husband differs_(介词)the wife _(介词)who is to take charge of the money.3).It doesn t make a _(differ)to me whether you are going to stay.4).This is a different car _(介词)the one I drove yesterday.重点词汇ininon/about/overwithfromdifference2.undertake vt.(undertook;

4、undertaken)着手;从事;承担;同意,答应,保证(后接to do)例句1).She undertook the responsibility for these changes.她承担了做出这些改变的责任。2).He undertook to pay the money back in one month.他答应在一个月之内还钱。重点用法undertake for 为.承担;保证undertake boldly大胆地从事;大胆地进行重点词汇2.undertake vt.(undertook;undertaken)着手;从事;承担;同意,答应,保证(后接to do)练习 翻译句子。1).

5、他答应在周五之前完成那份工作。He undertook to finish the work before Friday.2).她负责整个项目的组织工作。She undertook the organization work of the whole project.3).我将保证你的安全。I will undertake for your security.重点词汇3.forbid vt.(forbade or forbad;forbidden)禁止;不准;阻止妨碍例句1).The law forbids the use of chemical fertilizers.法律禁止使用化学肥料。

6、2).I forbid you to tell anyone.我不准你告诉任何人。重点用法forbid sth./doing sth.禁止,不许(做某事)forbid sb.to do sth.禁止某人做某事重点词汇3.forbid vt.(forbade or forbad;forbidden)禁止;不准;阻止妨碍练习 翻译句子。1).飞机上禁止吸烟。Smoking is forbidden on the plane.2).他爸爸不准他和她交谈。His father forbade him to talk to her.3).要禁止小孩子不玩电脑游戏很难。It is hard to forb

7、id children(to play)computer games.重点词汇4.accumulate vt.&vi.积累;聚积accumulation n u,c 积累例句1).By investing wisely she accumulated a fortune.她由於投资精明而积蓄了一笔财产。2).Dust and dirt soon accumulate if a house is not cleaned regularly.房屋不经常打扫,尘土很快就越积越多。重点用法 accumulated a fortune 积累财富重点词汇4.accumulate vt.&vi.积累;聚积a

8、ccumulation n u,c 积累练习 翻译或根据句子的意思在括号里填入所给词的适当形式。1).A thick layer of dust _(accumulate)here,so he had to give it a thorough cleaning.2).Despite this _(accumulate)of evidence,He persisted in doing nothing.3).努力工作,你就会积累一笔财产。By working hard you may accumulate a fortune.重点词汇had accumulatedaccumulation5.o

9、we vt.欠;应该把.归功于;感激,感恩例句1).He owes his father 50.=He owes 50 to his father.他欠他父亲50英镑。2).We owe this discovery to Newton.我们的这一发现归功於牛顿。重点用法owe sb sth=owe sth to sb 欠(某人)债owe sth to sb/sth将某事物归因或归功於某人/事重点词汇5.owe vt.欠;应该把.归功于;感激,感恩练习 根据句子的要求在括号里填入适当的介词。1).How much do I owe you _ the groceries?2).He owes

10、his success more _ luck than _ ability.3).I owe a lot _ my wife and children.重点词汇fortototo6.retire vi.退休(役);退出,撤退;就寝例句1).He will retire from the army next year.他明年从部队退役。2).Our forces retired to prepared positions.我们的部队撤退到既设阵地上。重点用法retire from.从.退休(役)/退出retire(from.)(to.)退下,退出,离开(尤指到僻静处)重点词汇6.retire

11、vi.退休(役);退出,撤退;就寝练习 根据句子的要求在括号里填入所给词适当的形式或翻译。1).He _(retire)next year after 30 years with the company.2).She was forced to _ _ _(提前退出)teaching because of ill health.3).He is a _(retire)airline pilot.重点词汇retiredfromearlyretireis retiring7.bother vt.打扰 vi.操心 n.烦扰例句1).I am busy;don t bother me now.我很忙,

12、现在别打扰我。2).I am sorry to bother you,but can you tell me the time.对不起,打扰了,请问现在几点?重点用法bother with/about 一为.而烦恼;因.操心bother to do/doing费神做.重点词汇7.bother vt.打扰 vi.操心 n.烦扰练习 填介词或根据句子的要求在括号里填入所给词适当的形式。1).The problem has been _(bother)me for weeks.2).一Shall I help you with the cases?-Don t _.I can manage.3).D

13、ont bother _(介词)us;we will soon join you.重点词汇botheringbotherabout8.obtain vt.(正式;尤指通过努力或计划)获得;得到obtainable adj能得到的;可获得的例句1).I haven t been able to obtain that record anywhere.我到处都没买到那张唱片。2).He said that the police had obtained this information by illegal means.他说警方是靠非法手段获得这一资料的。重点用法obtain sth from s

14、b/sth 从.获得某物重点词汇8.obtain vt.(正式;尤指通过努力或计划)获得;得到obtainable adj能得到的;可获得的练习 根据句子的要求在括号里填入适当的词或翻译。1).Are his records still _(obtain)?2).Further information can be obtained _(介词)head office.3).他现在可以获得驾驶执照了。重点词汇He can obtain a drivers license now.fromobtainable1.aloud/loud/loudly【解释】aloud adv.重点在于出声(能被人听见

15、,但声音不一定很大)aloud通常与read等词连用:read aloud朗读,读出声shout/call/laugh aloud大声叫喊笑loud作形容词时意为大声的,作副词时特指(谈笑等)大声地,常用比较级形式;loudly大声地,吵闹地,强调声音喧闹、不悦耳,与quietly相对词语辨析1.aloud/loud/loudly【练习】用aloud,loud,loudly的适当形式填空。1).The teacher asked me to read the poem _.2).The radio isn t _ enough.Could you turn it up a little?3).

16、I could hear people over there talking _ with each other about the news.4).Could you speak _?词语辨析louderloudlyloudaloud2.obtain/acquire/gain/earn/achieve【解释】obtain意为获得,买到。指通过努力或请求而得到,含有满足要求或得达到目的的意味,用于正式语体中。acquire意为经过努力逐步获得才能、知识、习惯等,也可用于对财物等的获得,强调一经获得就会长期持有的含义。gain意为通过较大努力获得某种利益或好处;亦可指军事上的武力夺取等。earn

17、意为挣得,赢得。指因工作等而得到报酬或待遇。achieve意为得到;获得,多指成就、目标、幸福的取得。词语辨析2.obtain/acquire/gain/earn/achieve【练习】用obtain,acquire,gain,earn,achieve的适当形式填空。1).How much do you _a week?2).The movie star _ success and wealth.3).He _ experience through practice.4).It is through learning that the individul _ many habitual way

18、s of reacting to situations.5).An investor _ by buying stocks that go up in value.词语辨析gainsachievedacquires obtained earn重点词汇:1.differ vi.不同;相异2.undertake vt.(undertook;undertaken)着手;从事;承担;同意,答应3.forbid vt.(forbade or forbad;forbidden)禁止;不准;阻止妨碍4.accumulate vt.&vi.积累;聚积5.owe vt.欠;应该把.归功于;感激,感恩6.retire vi.退休(役);退出,撤退;就寝7.bother vt.打扰 vi.操心 n.烦扰8.obtain vt.(正式;尤指通过努力或计划)获得;得到重点词组词语辨析:1.aloud/loud/loudly 2.obtain/acquire/gain/earn/achieve

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