新概念英語青少版3A-11課件

Unit11Turnitdown按普通人的聽覺0－20分貝很靜、幾乎感覺不到；20－40分貝安靜、猶如輕聲絮語；40－60分貝一般。普通室內(nèi)談話；60－70分貝吵鬧、有損神經(jīng)；70－90分貝很吵、神經(jīng)細(xì)胞受到破壞；90－100分貝吵鬧加劇、聽力受損；100－120分貝難以忍受、呆一分鐘即暫時致聾；120分貝以上：極度聾或全聾。

一般聲音在30分貝左右時，不會影響正常的生活和休息；而達(dá)到50分貝以上時，人們又較大的感覺，很難入睡。

NewwordsandExpressionsloud/la?d/adj.大聲的，喧鬧的turndownv.+adv.把...關(guān)小，調(diào)低interrupt/??nt?'r?pt/v.打斷hearing/'h??r??/n.聽覺sound/sa?nd/n.聲音，響聲deaf/def/adj.聾的limit/'l?m?t/n.限度，極限decibel/?des?bel/n.分貝（音量單位）continuous/k?n?t?nju?s/adj.連續(xù)不斷的sudden/?s?dn/adj.突然的damage/'d?m?d?/n.損害nightclub/naitkl?b/n.夜總會MP3player/'ple??/n.MP3播放器experience/?k'sp??r??ns/v.經(jīng)歷，體驗if/?f/adv.conj.如果unlucky/?n'l?k?/adj.不幸的，倒霉的forever/f?r'ev?/adv.永遠(yuǎn)level/'lev?l/n.水平LUCY:Dad,thatmusic'sloud！Turnitdown！WILLIAM:Sorry,Lucy！AmIinterruptingyourhomework?OnepersoninsevenintheUKisdeaf,andmanyofthemaredeafbecauseofnoise.Formostpeople,thesafelimitis85decibels(dB)forcontinuousnoise,and103dBforsuddennoise.Afterfifteenminutesat105dB,mostpeoplewillhavesomedamagetotheirhearing.LUCY:You'realwayslisteningtoloudmusic,Dad.Ifyouaren'tcareful,you'llbecomedeaf.WILLIAM:Sorry,Lucy！Whatdidyousay?LUCY:Oh,Dad！Itisn'tfunny！WILLIAM:Ofcourseitisn't.AndIwillturnthesounddown.Ipromise！NewwordsandExpressionsitdoesn'tmatter沒關(guān)系hire/'ha??/v.租用fail/fe?l/v.沒有通過（考試）accident/'?ks?d?nt/n.事故ambulance/'?mbj?l?ns/n.救護(hù)車robbery/'r?b?r?/n.搶劫fire/'fa??/n.火災(zāi)，失火fireservice/'s?:v?s/n.消防署，消防隊thief/θi:f/n.賊，小偷prison/'pr?zn/n.監(jiān)獄apologize/?'p?l?d?a?z/v.道歉adayoff/?dei?f/休息一天popconcert/p?p?k?ns?t/n.流行音樂會PatternPractice1.A:Whatwillyoudoifyoumissthebus?B:I'llgetataxi.2.A:Whydon'tyougetataxi?B:I'llonlygetataxiifImissthebus.3.A:Areyougoingtogetataxi?B:No,butIwillifImissthebus.4.A:You'regoingtomissthebus！B:Itdoesn'tmatter.IfImissthebus,I'llgetataxi.

5.A:Whatwill/What'llhappenifitrainstomorrow?B:They'llgetwet.6.A:It'llprobablyraintomorrow.B:Ifitdoes,they'llgetwet.7.A:Theywon'tgetwettomorrow.B:Theywillifitrains.1.Iftheweather'sfinetomorrow,I'llgotothebeach.2.Iftheweather'sterriblenextweek,I'llstayathome.3.IfIgetupverylatetomorrow,I'llbelateforcollege/work/school.4.IfIhaveadayoffnextweek,I'llvisitmygrandparents.5.IfIgotoapopconcertandthemusic'stooloud,I'llleave.6.Ifsomeoneinvitesmetoanartexhibitionnextweek,I'llwearmybestclothes.HowtoenjoyapartyPicturethis.Yougetanemail.someonehasinvitedyoutoaparty.Howdoyoufeelaboutit?Happy?Excited?Ormiserable?Ifyoufeelmiserable,youarenotalone.Manypeoplefeelthesame.Butashypersoncanenjoyaparty.Here'show.First,don'tgotothepartylate.Ifyougoearly,itwillbeeasierforyoutomeetoneortwopeopleand