新概念英語青少版3A_Unit_11_Turn_it_down

1、Unit 11 Turn it down!Do you like these?你對分貝了解多少？ 分貝（decibel）dB 分貝是以美國發(fā)明家亞歷山大格雷厄姆貝爾（英國人，后移居美國）命名的，他因發(fā)明電話（1875年貝爾制成了實用的電話裝置，1876年建起了世界上第一家電話公司。）而聞名于世。 你知道一個聲音與另一個聲音結(jié)合時，會產(chǎn)生什么結(jié)果嗎？我們都知道60個蘋果加60 個蘋果，等于120個蘋果。但是，這并不適用于以分貝來表示的聲音。事實上，60分貝加60分貝只等于63分貝。 分貝對人的影響有什么？ 1020分貝幾乎感覺不到。 2040分貝相當于輕聲說話。 4060分貝相當于室內(nèi)談話。 6

2、070分貝有損神經(jīng)。 你對分貝了解多少？ 7090分貝很吵。長期在這種環(huán)境下學習和生活，會使人的神經(jīng)細胞逐漸受到破壞。 90100分貝會使聽力受損。 100120分貝使人難以忍受，幾分鐘就可暫時致聾。 一般聲音在30分貝左右時，不會影響正常的生活和休息。 而達到50分貝以上時，人們有較大的感覺，很難入睡。 維塔斯的高音是105分貝，而飛機起飛時螺旋槳發(fā)出的聲音才110分貝！ Lucy: Dad, that musics loud! Turn it down! William: Sorry, Lucy! Am I interrupting your homework? Lucy: Its not

3、 that, Dad. We had a lesson today about hearing. Look at this.Unit 11 Turn it down!Notes on the Text interrupt & interruption n. e.g: He tried to speak, but she interrupted him. interrupt 是打斷的意思，主要打斷別人正在進行的事情，如談話，或者工作。 disturb是打擾的意思，主要是打擾別人休息。 bother是煩擾的意思，主要是指在某一時間段里，持續(xù)打擾別人并使別人煩惱。 that, 代詞，指代前面

4、的一整句。 One person in seven in the UK is deaf, and many of them are deaf because of noise. 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.Unit 11 Turn it down!Note

5、s on the Text One person in seven in the UK is deaf 謂語動詞用單數(shù)，兩個in分別表示時間和地點，不做主語。 because of，of為介詞，后跟名詞。 e.g: Im here because of you. because conj. 其后接原因狀語從句或回答以why開頭的問句； e.g: Because he is ill, he is absent today. decibel 復數(shù)：decibels e.g: Continuous exposure to sound above 80 decibels could be harmfu

6、l. 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 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,

7、the damage will last for ever.Unit 11 Turn it down!Notes on the Text much louder, 通常用much修飾形容詞或副詞的比較級，表示.得多。 類似的詞還有 a bit，a little，rather，far，by far，many，a lot，lots，a great deal，any，still，even e.g: We will be a much better football team next year. experience n.經(jīng)驗，（不可數(shù)名詞）；經(jīng)歷 vt.親身參與，親身經(jīng)歷；感受；發(fā)現(xiàn) e.g: H

8、e has also had managerial experience on every level. I should not be in any danger here, but experience has taught me caution. We had never experienced this kind of holiday before and had no idea what to expect. Lucy: Youre always listening to loud music, Dad. If you arent careful, youll become deaf

9、. William: Sorry, Lucy! What did you say? Lucy: Oh, Dad! It isnt funny! William: Of course it isnt. And I will turn the sound down. I promise!Unit 11 Turn it down!條件狀語從句Notes on the Text If they are lucky, this will last for one or two days. 在由if引導的條件狀語從句中，我們遵循主將從現(xiàn)的原則。即：主句用一幫將來時，從句用一般現(xiàn)在時。 e.g: If it

10、 is fine tomorrow, we will go outing. 在時間狀語從句中，我們也遵循主將從現(xiàn)的原則。 常見的時間狀語從句的連詞有：as soon as, when, while , as, until等。 e.g: When I grow up, Ill be a nurse and look after patientsNotes on the Text promise （v. 允諾，許諾） to do sth e.g: He promised to help us. I cant give you the book because Ive promised it to

11、Susan. n. 許諾；希望，指望；允諾的東西 e.g: Give me your promise that youll never be late again. 與turn相關(guān)的詞組 turn down 降低音量 turn up 開大音量 turn on 打開 turn off 關(guān)閉Key words failfeil -failurefeilj n 1. 表示“失敗”，通常是不及物動詞。表示在某一方面失敗，通常用介詞 in。 e.g: He failed in business. 他經(jīng)商失敗。 2. 表示“(考試)不及格”，fail 可用作及物或不及物動詞(以及物動詞為多見)，所以在下面

12、例句中 fail 后的介詞 in 省略了： He failed (in) his driving-test. 他駕駛考試沒及格。 3.其后可接不定式，意為“不能”“沒有”“忘記”等。e.g: He failed to pass the exam. 他考試沒有及格Key words apologeze vi.道歉，認錯；辯解，辯護 e.g: I apologize for being late. Apologize to your husband for anything you did wrong 習慣用語 apologize to sb. 向某人道歉 apologize to sb. for

13、 sth. 向某人為某事(為做了某事)道歉 apologize to sb. for doing sth. 向某人為某事(為做了某事)道歉 apologize for oneself 為自已解辯或辯護New words and Expressions damage n. 損害 nightclub n. 夜總會 MP3 player n. MP3播放器 experience v. 經(jīng)歷，體驗 if adv. conj. 如果 unlucky adj. 不幸的，倒霉的 for ever adv. 永遠 level n. 水平 it doesnt matter 沒關(guān)系 hire v. 租用New w

14、ords and Expressions loud adj. 大聲的，喧鬧的 turn it down 把.關(guān)小，調(diào)低 interrupt v. 打斷 hearing n.聽覺 sound n. 聲音，響聲 deaf adj. 聾的 limit n. 限度，極限 decibel n. 分貝（音量單位） continuous adj. 連續(xù)不斷的 sudden adj. 突然的New words and Expressions fail v. 沒有通過（考試） accident n. 事故 ambulance n. 救護車 robbery n. 搶劫 fire n. 火災，失火 fire ser

15、vice n. 消防署，消防隊 thief n. 賊，小偷 prison n. 監(jiān)獄 apologize v. 道歉 a day off 休息一天 pop concert n. 流行音樂會流行音樂會ambulancecontinuousfail limitlevel damageloud事故 prison打斷聽覺deaf thief hire沒關(guān)系 搶劫分貝nightclub 消防隊突然的 apologize不幸的 What will you do if you meet James?Ill .What will you do if you meet Lee MinhoLee Minho ?Ill .What will you do if you meet Justin Bieber?Ill .What will you do if you meet Audrey Hepburn