1、Unit 11 Turn it down!Do you like these?你对分贝了解多少?n 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。n n 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。n 分贝对人的影响有什么?n 1020分贝几乎感觉不到。n 2040分贝相当于轻声说话。n 4060分贝相当
2、于室内谈话。n 6070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。n 90100分贝会使听力受损。n 100120分贝使人难以忍受,几分钟就可暂时致聋。n 一般声音在30分贝左右时,不会影响正常的生活和休息。n 而达到50分贝以上时,人们有较大的感觉,很难入睡。n 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 Expressionsn loud adj.大声的,喧闹的大声的,喧闹的n turn it down 把把.关小,调低关小,调低n interrupt v.打断打断n he
3、aring n.听觉听觉n sound n.声音,响声声音,响声n deaf adj.聋的聋的n limit n.限度,极限限度,极限n decibel n.分贝(音量单位)分贝(音量单位)n continuous adj.连续不断的连续不断的n sudden adj.突然的突然的New words and Expressionsn damage n.损害损害n nightclub n.夜总会夜总会n MP3 player n.MP3播放器播放器n experience v.经历,体验经历,体验n if adv.conj.如果如果n unlucky adj.不幸的,倒霉的不幸的,倒霉的n fo
4、r ever adv.永远永远n level n.水平水平n it doesnt matter 没关系没关系 n hire v.租用租用New words and Expressionsn fail v.没有通过(考试)没有通过(考试)n accident n.事故事故n ambulance n.救护车救护车n robbery n.抢劫抢劫n fire n.火灾,失火火灾,失火n fire service n.消防署,消防队消防署,消防队n thief n.贼,小偷贼,小偷n prison n.监狱监狱n apologize v.道歉道歉n a day off 休息一天休息一天n pop co
5、ncert n.流行音乐会流行音乐会Key wordsn1.failfeil-failurefeilj nn(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。n e.g:He failed in business.他经商失败。n(2).表示表示“(考试考试)不及格不及格”,fail 可用作及物可用作及物或不及物动词或不及物动词(以及物动词为多见以及物动词为多见),所以在,所以在下面例句中下面例句中 fail 后的介词后的介词 in 省略了:省略了:nHe failed(in)his driving-test.他驾驶考试没及格。他驾驶考试没及格。他数学考试没及格。他数
6、学考试没及格。He has failed his math exam.n(3)其后可接不定式,意为“不能”“没有”“忘记”等。nfail to do sth.ne.g:He failed to pass the exam.n他考试没有及格2.turn it down(1)turn down 调低调低(2)turn up 调高调高(3)turn on 打开打开(4)turn off 关上关上n3.hire 录用录用 聘用聘用nhire sb.n4.apologeze vi.道歉,认错;辩解,辩护道歉,认错;辩解,辩护napologize to sb for sth.ne.g:I apologiz
7、e for being late.n Apologize to your husband for anything you did wrong习惯用语n apologize to sb.n 向某人道歉向某人道歉n apologize to sb.for sth.n 向某人为某事向某人为某事(为做了某事为做了某事)道歉道歉n apologize to sb.for doing sth.n 向某人为某事向某人为某事(为做了某事为做了某事)道歉道歉n apologize for oneselfn 为自已解辩或辩护为自已解辩或辩护5.accident 事故car accident traffic ac
8、cidentNew words and Expressionsn loud adj.大声的,喧闹的大声的,喧闹的n turn it down 把把.关小,调低关小,调低n interrupt v.打断打断n hearing n.听觉听觉n sound n.声音,响声声音,响声n deaf adj.聋的聋的n limit n.限度,极限限度,极限n decibel n.分贝(音量单位)分贝(音量单位)n continuous adj.连续不断的连续不断的n sudden adj.突然的突然的New words and Expressionsn damage n.损害损害n nightclub n
9、.夜总会夜总会n MP3 player n.MP3播放器播放器n experience v.经历,体验经历,体验n if adv.conj.如果如果n unlucky adj.不幸的,倒霉的不幸的,倒霉的n for ever adv.永远永远n level n.水平水平n it doesnt matter 没关系没关系 n hire v.租用租用New words and Expressionsn fail v.没有通过(考试)没有通过(考试)n accident n.事故事故n ambulance n.救护车救护车n robbery n.抢劫抢劫n fire n.火灾,失火火灾,失火n fi
10、re service n.消防署,消防队消防署,消防队n thief n.贼,小偷贼,小偷n prison n.监狱监狱n apologize v.道歉道歉n a day off 休息一天休息一天n pop concert n.流行音乐会流行音乐会流行音乐会ambulancecontinuousfail limitlevel damageloud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 n Lucy:Dad,that musics loud!n Turn it down!n William:Sorry,L
11、ucy!n Am I interrupting n your homework?n Lucy:Its not that,Dad.n We had a lesson today n about hearing.n Look at this.Unit 11 Turn it down!Notes on the Textn interrupt v.打断打断n interrupt sth.=sth is interrupted byn e.g:He tried to speak,but she interrupted him.n 他尝试着去说出来,但是她打断了他。他尝试着去说出来,但是她打断了他。n 不
12、要打扰我。不要打扰我。Dont interrupt me!n interrupt 是打断的意思,主要打断别人正在进行是打断的意思,主要打断别人正在进行的事情,如谈话,或者工作。的事情,如谈话,或者工作。n disturb是打扰的意思,主要是打扰别人休息。是打扰的意思,主要是打扰别人休息。n bother是烦扰的意思,主要是指在某一时间段里,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。持续打扰别人并使别人烦恼。interrupt&interruption n.have a lesson aboutn 1.上周四我们上了一节关于健康的课。(have a lesson about
13、)n 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 deaf,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
14、 sudden noise.After fifteen minutes at 105 dB,most people will have somedamage to their hearing.Notes on the Textn One person in seven in the UK is deaf n 谓语动词用单数,两个谓语动词用单数,两个in分别表示时间和地点,分别表示时间和地点,不做主语。不做主语。n because of,of为介词,后跟名词。为介词,后跟名词。n e.g:Im here because of you.n because conj.其后接原因状语从句或回答以其后接
15、原因状语从句或回答以why开头的问句;开头的问句;n e.g:Because he is ill,he is absent today.Notes on the Textdamage n&v 损坏,伤害损坏,伤害1.v.damage sth.损坏某物损坏某物2.n.(可数可数)have some damage to sb./sth.对某物对某物或某人有伤害或某人有伤害n Music in nightclubs is often much louder than the safe limit.19%of young people listen to their MP3 players at 10
16、5 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 ever.Unit 11 Turn it down!Notes on the Textn much louder,通常用通常用much修饰形容词或副词的比修饰形容词或副词的比较级,表示较级,表示.
17、得多得多。n 类似的词还有类似的词还有 a bit,a little,rather,far,by far,many,a lot,lots,a great deal,any,still,evenn e.g:We will be a much better football team next year.experiencen experience n.经验,(不可数名词);经历(可经验,(不可数名词);经历(可数)数)n vt.亲身参与,亲身经历;感受;发现亲身参与,亲身经历;感受;发现e.g.We had never experienced this kind of holiday befor
18、e.(动词)(动词)Notes on the Textn 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”。nIf you arent careful,youll become deaf.n if引导的条件状语从句:引导的条件状语从句:n 1.表示在某种条件下某事很可能发生;表示在某种条件下某事很可能发生;n 2.if后面的是从句,后面的是从句,youll是主句;是主句;n 3.从句可以放在前面,也可以放在后面;从句可以放在前面,也可以放在后面;n 4.主句用主句用一般将来
19、时一般将来时,从句用,从句用一般现在时一般现在时。Notes on the Textn If they are lucky,this will last for one or two days.n 在由在由if引导的条件状语从句中,我们遵循主将从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,从句用一般现的原则。即:主句用一帮将来时,从句用一般现在时。现在时。n e.g:If it is fine tomorrow,we will go outing.n 在在时间时间状语从句中,我们状语从句中,我们也也遵循主将从现的原则。遵循主将从现的原则。n 常见的时间状语从句的连词有:
20、常见的时间状语从句的连词有:as soon as,when,while,as,until等等。n e.g:When I grow up,Ill be a nurse and look after patientsPractice:n 1.如果你请他帮忙,他会帮你的。如果你请他帮忙,他会帮你的。n 2.我有时间我就来看你。我有时间我就来看你。n 3.如果雨停了,我就去洗车。如果雨停了,我就去洗车。If you ask him,he will help you.I will visit you if I have time.I will wash the car if it doesnt rain
21、.n Lucy:Youre always listening to n loud music,Dad.n If you arent careful,n youll become deaf.n William:Sorry,Lucy!n What did you say?n Lucy:Oh,Dad!It isnt funny!n William:Of course it isnt.n And I will n turn the sound down.n I promise!Unit 11 Turn it down!条件状语从句Notes on the Textpromise(v.允诺,许诺)允诺,许诺)(1)promise to do sthe.g:He promised to help us.(2)promise sb.sth.=promise sth to sb.承诺给某人某物承诺给某人某物e.g.I cant give you the book because Ive promised it to Susan.n.许诺;希望,指望;允诺的东西许诺;希望,指望;允诺的东西make a promise与turn相关的词组turn down 降低音量降低音量 turn up 开大音量开大音量turn on 打开打开 turn off 关闭关闭