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1、Unit 11 Turn it down!,Do you like these?,你对分贝了解多少?,分贝(decibel)dB 分贝是以美国发明家亚历山大格雷厄姆贝尔(英国人,后移居美国)命名的,他因发明电话(1875年贝尔制成了实用的电话装置,1876年建起了世界上第一家电话公司。)而闻名于世。你知道一个声音与另一个声音结合时,会产生什么结果吗?我们都知道60个苹果加60 个苹果,等于120个苹果。但是,这并不适用于以分贝来表示的声音。事实上,60分贝加60分贝只等于63分贝。分贝对人的影响有什么? 1020分贝几乎感觉不到。 2040分贝相当于轻声说话。 4060分贝相当于室内谈话。 6
2、070分贝有损神经。,你对分贝了解多少?, 7090分贝很吵。长期在这种环境下学习和生活,会使人的神经细胞逐渐受到破坏。 90100分贝会使听力受损。 100120分贝使人难以忍受,几分钟就可暂时致聋。 一般声音在30分贝左右时,不会影响正常的生活和休息。 而达到50分贝以上时,人们有较大的感觉,很难入睡。维塔斯的高音是105分贝,而飞机起飞时螺旋桨发出的声音才110分贝!,New words and Expressions,loud adj. 大声的,喧闹的 turn it down 把.关小,调低 interrupt v. 打断 hearing n.听觉 sound n. 声音,响声 de
3、af adj. 聋的 limit n. 限度,极限 decibel n. 分贝(音量单位) continuous adj. 连续不断的 sudden adj. 突然的,New words and Expressions,damage n. 损害 nightclub n. 夜总会 MP3 player n. MP3播放器 experience v. 经历,体验 if adv. conj. 如果 unlucky adj. 不幸的,倒霉的 for ever adv. 永远 level n. 水平 it doesnt matter 没关系 hire v. 租用,New words and Expres
4、sions,fail v. 没有通过(考试) accident n. 事故 ambulance n. 救护车 robbery n. 抢劫 fire n. 火灾,失火 fire service n. 消防署,消防队 thief n. 贼,小偷 prison n. 监狱 apologize v. 道歉 a day off 休息一天 pop concert n. 流行音乐会,Key words,1. failfeil -failurefeilj n(1). 表示“失败”,通常是不及物动词。表示在某一方面失败,通常用介词 in。 e.g: He failed in business. 他经商失败。,(
5、2). 表示“(考试)不及格”,fail 可用作及物或不及物动词(以及物动词为多见),所以在下面例句中 fail 后的介词 in 省略了: He failed (in) his driving-test. 他驾驶考试没及格。,他数学考试没及格。,He has failed his math exam.,(3)其后可接不定式,意为“不能”“没有”“忘记”等。 fail to do sth.e.g: He failed to pass the exam. 他考试没有及格,2. turn it down(1) turn down 调低(2) turn up 调高(3) turn on 打开(4) t
6、urn off 关上,3. hire 录用 聘用 hire sb.4. apologeze vi.道歉,认错;辩解,辩护 apologize to sb for sth. e.g: I apologize for being late.Apologize to your husband for anything you did wrong,习惯用语,apologize to sb. 向某人道歉 apologize to sb. for sth. 向某人为某事(为做了某事)道歉 apologize to sb. for doing sth. 向某人为某事(为做了某事)道歉 apologize f
7、or oneself 为自已解辩或辩护,5. accident 事故,car accident traffic accident,New words and Expressions,loud adj. 大声的,喧闹的 turn it down 把.关小,调低 interrupt v. 打断 hearing n.听觉 sound n. 声音,响声 deaf adj. 聋的 limit n. 限度,极限 decibel n. 分贝(音量单位) continuous adj. 连续不断的 sudden adj. 突然的,New words and Expressions,damage n. 损害 n
8、ightclub n. 夜总会 MP3 player n. MP3播放器 experience v. 经历,体验 if adv. conj. 如果 unlucky adj. 不幸的,倒霉的 for ever adv. 永远 level n. 水平 it doesnt matter 没关系 hire v. 租用,New words and Expressions,fail v. 没有通过(考试) accident n. 事故 ambulance n. 救护车 robbery n. 抢劫 fire n. 火灾,失火 fire service n. 消防署,消防队 thief n. 贼,小偷 pri
9、son n. 监狱 apologize v. 道歉 a day off 休息一天 pop concert n. 流行音乐会,流行音乐会,ambulance,continuous,fail,limit,level,damage,loud,事故,prison,打断,听觉,deaf,thief,hire,没关系,抢劫,分贝,nightclub,消防队,突然的,apologize,不幸的,New words:,Lucy: Dad, that musics loud!Turn it down! William: Sorry, Lucy!Am I interrupting your homework? L
10、ucy: Its not that, Dad.We had a lesson today about hearing.Look at this.,Unit 11 Turn it down!,Notes on the Text,interrupt v. 打断 interrupt sth. =sth is interrupted bye.g: He tried to speak, but she interrupted him. 他尝试着去说出来,但是她打断了他。不要打扰我。,Dont interrupt me!,interrupt 是打断的意思,主要打断别人正在进行的事情,如谈话,或者工作。di
11、sturb是打扰的意思,主要是打扰别人休息。bother是烦扰的意思,主要是指在某一时间段里,持续打扰别人并使别人烦恼。,interrupt & interruption n.,have a lesson about,1. 上周四我们上了一节关于健康的课。(have a lesson about)2. 明年我们要上关于电影的课程。,We had a lesson about health last Thursday.,We are going to have a lesson about films next year.,One person in seven in the UK is dea
12、f, and many of them are deaf because of noise.,Unit 11 Turn it down!,For most people, the safe limit is 85 decibels(dB) for continuous noise, and 103 dB for sudden noise. After fifteen minutes at 105 dB, most people will have some damage to their hearing.,Notes on the Text,One person in seven in the
13、 UK is deaf 谓语动词用单数,两个in分别表示时间和地点,不做主语。because of,of为介词,后跟名词。 e.g: Im here because of you. because conj. 其后接原因状语从句或回答以why开头的问句; e.g: Because he is ill, he is absent today.,Notes on the Text,damage n&v 损坏,伤害1. v. damage sth. 损坏某物2.n. (可数) have some damage to sb./sth. 对某物或某人有伤害,Music in nightclubs is
14、often much louder than the safe limit.19% of young people listen to their MP3 players at 105 to 110 dB for many hours. 75% of them will experience ringing in the ears,and they will feel a bit deaf. If they are lucky, this will last for one or two days. If they are unlucky, the damage will last for e
15、ver.,Unit 11 Turn it down!,Notes on the Text,much louder, 通常用much修饰形容词或副词的比较级,表示“.得多“。类似的词还有 a bit,a little,rather,far,by far,many,a lot,lots,a great deal,any,still,evene.g: We will be a much better football team next year.,experience,experience n.经验,(不可数名词);经历(可数)vt.亲身参与,亲身经历;感受;发现e.g. We had never
16、 experienced this kind of holiday before . (动词),Notes on the Text,条件状语从句:由引导词if或unless引导的状语从句叫做条件状语从句。条件是指某一件事情实现之后(状语从句中的动作),其它事情(主句中的动作)才能发生,通常译作“假如”。If you arent careful, youll become deaf.if引导的条件状语从句: 1. 表示在某种条件下某事很可能发生; 2. if后面的是从句,youll是主句; 3. 从句可以放在前面,也可以放在后面; 4. 主句用一般将来时,从句用一般现在时。,Notes on the Text,If they are lucky, this will last for one or two days. 在由if引导的条件状语从句中,我们遵循主将从现的原则。即:主句用一帮将来时,从句用一般现在时。 e.g: If it is fine tomorrow, we will go outing. 在时间状语从句中,我们也遵循主将从现的原则。 常见的时间状语从句的连词有:as soon as, when, while , as, until等。 e.g: When I grow up, Ill be a nurse and look after patients,