1、Unit 11 Turn it down!第1页Do you like these?第2页你对分贝了解多少?n 分贝(decibel)dB 分贝是以美国创造家亚历山大格雷厄姆贝尔(英国人,后移居美国)命名,他因创造电话(1875年贝尔制成了实用电话装置,1876年建起了世界上第一家电话企业。)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。不过,这并不适合用于以分贝来表示声音。实际上,60分贝加60分贝只等于63分贝。n分贝对人影响有什么?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
2、当于室内谈话。n 6070分贝有损神经。第3页你对分贝了解多少?7090分贝很吵。长久在这种环境下学习和生活,会使人神经细胞逐步受到破坏。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普通声音在30分贝左右时,不会影响正常生活和休息。n而到达50分贝以上时,人们有较大感觉,极难入睡。n维塔斯高音是105分贝,而飞机起飞时螺旋桨发出声音才110分贝!第4页New words and Expressionsnloud adj.大声,喧闹大声,喧闹nturn it down 把把.关小,调低关小,调低ninterrupt v.打断打断nhearing n.听
3、觉听觉nsound n.声音,响声声音,响声ndeaf adj.聋聋nlimit n.程度,极限程度,极限ndecibel n.分贝(音量单位)分贝(音量单位)ncontinuous adj.连续不停连续不停nsudden adj.突然突然第5页New words and Expressionsndamage n.损害损害nnightclub n.夜总会夜总会nMP3 player n.MP3播放器播放器nexperience v.经历,体验经历,体验nif adv.conj.假如假如nunlucky adj.不幸,倒霉不幸,倒霉nfor ever adv.永远永远nlevel n.水平水平n
4、it doesnt matter 没关系没关系 nhire v.租用租用第6页New words and Expressionsnfail v.没有经过(考试)没有经过(考试)naccident n.事故事故nambulance n.救护车救护车nrobbery n.抢劫抢劫nfire n.火灾,失火火灾,失火nfire service n.消防署,消防队消防署,消防队nthief n.贼,小偷贼,小偷nprison n.监狱监狱napologize v.道歉道歉na day off 休息一天休息一天npop concert n.流行音乐会流行音乐会第7页Key wordsn1.failfei
5、l-failurefeilj nn(1).表示“失败”,通常是不及物动词。表示在某首先失败,通惯用介词 in。ne.g:He failed in business.他经商失败。第8页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 后介词后介词 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。他数学考试没及格。He has failed his math exam.第9页
6、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他考试没有及格第10页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 关上关上第11页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 apologize for being late.n Apologiz
7、e to your husband for anything you did wrong第12页习惯用语napologize to sb.n向某人道歉向某人道歉napologize 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napologize 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napologize for oneselfn为自已解辩或辩护为自已解辩或辩护第13页5.accident 事故car accident traffic accident第14页New words and Exp
8、ressionsnloud adj.大声,喧闹大声,喧闹nturn it down 把把.关小,调低关小,调低ninterrupt v.打断打断nhearing n.听觉听觉nsound n.声音,响声声音,响声ndeaf adj.聋聋nlimit n.程度,极限程度,极限ndecibel n.分贝(音量单位)分贝(音量单位)ncontinuous adj.连续不停连续不停nsudden adj.突然突然第15页New words and Expressionsndamage n.损害损害nnightclub n.夜总会夜总会nMP3 player n.MP3播放器播放器nexperience
9、 v.经历,体验经历,体验nif adv.conj.假如假如nunlucky adj.不幸,倒霉不幸,倒霉nfor ever adv.永远永远nlevel n.水平水平nit doesnt matter 没关系没关系 nhire v.租用租用第16页New words and Expressionsnfail v.没有经过(考试)没有经过(考试)naccident n.事故事故nambulance n.救护车救护车nrobbery n.抢劫抢劫nfire n.火灾,失火火灾,失火nfire service n.消防署,消防队消防署,消防队nthief n.贼,小偷贼,小偷nprison n.监
10、狱监狱napologize v.道歉道歉na day off 休息一天休息一天npop concert n.流行音乐会流行音乐会第17页流行音乐会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 apologize不幸 第18页nLucy:Dad,that musics loud!n Turn it down!nWilliam:Sorry,Lucy!n Am I interrupting n your homework?nLucy:Its not th
11、at,Dad.n We had a lesson today n about hearing.n Look at this.Unit 11 Turn it down!第19页Notes on the Textninterrupt v.打断打断ninterrupt sth.=sth is interrupted byne.g:He tried to speak,but she interrupted him.n他尝试着去说出来,不过她打断了他。他尝试着去说出来,不过她打断了他。n不要打搅我。不要打搅我。Dont interrupt me!第20页ninterrupt 是打断意思,主要打断他人正在
12、进行事是打断意思,主要打断他人正在进行事情,如谈话,或者工作。情,如谈话,或者工作。ndisturb是打搅意思,主要是打搅他人休息。是打搅意思,主要是打搅他人休息。nbother是烦扰意思,主要是指在某一时间段里,是烦扰意思,主要是指在某一时间段里,连续打搅他人并使他人烦恼。连续打搅他人并使他人烦恼。interrupt&interruption n.第21页have a lesson aboutn1.上周四我们上了一节关于健康课。(have a lesson about)n2.明年我们要上关于电影课程。We had a lesson about health last Thursday.We
13、are going to have a lesson about films next year.第22页One person in seven in the UK is deaf,and many of them are deaf because of noise.Unit 11 Turn it down!第23页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
14、 will have somedamage to their hearing.第24页Notes on the TextnOne 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。nbecause of,of为介词,后跟名词。为介词,后跟名词。ne.g:Im here because of you.nbecause conj.其后接原因状语从句或回答以其后接原因状语从句或回答以why开头问句;开头问句;ne.g:Because he is ill,he is absent
15、 today.第25页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第26页n Music in nightclubs is 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
16、 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!第27页Notes on the Textnmuch louder,通惯用通惯用much修饰形容词或副词比较修饰形容词或副词比较级,表示级,表示.得多得多。n类似词还有类似词还有 a bit,a little,rather,far,by far,ma
17、ny,a lot,lots,a great deal,any,still,evenne.g:We will be a much better football team next year.第28页experiencenexperience n.经验,(不可数名词);经历(可数)经验,(不可数名词);经历(可数)n vt.亲亲身参加,身参加,亲亲身身经历经历;感受;感受;发觉发觉e.g.We had never experienced this kind of holiday before.(动词)(动词)第29页Notes on the Textn条件状语从句:由引导词if或unless引导
18、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(状语从句中动作),其它事情(主句中动作)才能发生,通常译作“假如”。nIf you arent careful,youll become deaf.nif引导条件状语从句:引导条件状语从句:n1.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;n2.if后面是从句,后面是从句,youll是主句;是主句;n3.从句能够放在前面,也能够放在后面;从句能够放在前面,也能够放在后面;n4.主句用主句用普通未来时普通未来时,从句用,从句用普通现在时普通现在时。第30页Notes on the TextnIf they are luck
19、y,this will last for one or two days.n在由在由if引导条件状语从句中,我们遵照主将从现标引导条件状语从句中,我们遵照主将从现标准。即:主句用一帮未来时,从句用普通现在时。准。即:主句用一帮未来时,从句用普通现在时。ne.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,我们也也遵照主将从现标准。遵照主将从现标准。n常常见时间见时间状状语语从句从句连词连词有:有:as soon as,when,while,as,until等等。ne.g:When I grow up,Ill be
20、a nurse and look after patients第31页Practice:n1.假如你请他帮忙,他会帮你。假如你请他帮忙,他会帮你。n2.我有时间我就来看你。我有时间我就来看你。n3.假如雨停了,我就去洗车。假如雨停了,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.第32页nLucy:Youre always listening to n loud music,Dad.n If you arent careful
21、,n youll become deaf.nWilliam:Sorry,Lucy!n What did you say?nLucy:Oh,Dad!It isnt funny!nWilliam:Of course it isnt.n And I will n turn the sound down.n I promise!Unit 11 Turn it down!条件状语从句第33页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;允诺东西许诺;希望,指望;允诺东西make a promise第34页与turn相关词组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 关闭关闭第35页