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1、Lecture Five,Fricative 摩擦音,摩擦音（fricative）：,/f/v/唇齿摩擦音/s/z/舌端齿龈摩擦音/舌尖齿背摩擦音/舌端齿龈后部摩擦音/h/声门摩擦音/r/舌尖齿龈后部摩擦音,/f/v/唇齿摩擦音,下唇轻触上齿，气流由唇齿间的缝隙中通过引起摩擦发音。/f/是清辅音，声带不振动/v/是浊辅音，声带振动。/fit/fi:/fed/ft/vik/vi:/vet/vt/,Words Reading,fix if left coffee cliff phone photolaugh enoughvery clever vivid leave,Sentences Readi
2、ng,First come,first served.I left the key in my office.To be frank,I have been fired.Nothing ventured,nothing gained.They love each other very much.They will invite all their friends to the wedding.,/s/z/舌端齿龈摩擦音,舌端靠近齿龈，但不要贴紧，气流由舌端和齿龈间流出，摩擦发音。/s/是清辅音，声带不振动。/z/是浊辅音，声带振动。/s/z/si:/set/zi:/zed/,Words Rea
3、ding,sick busmiss fax sixcite rice science scene NOTE 一般/s/之后的清辅音都读成相应的浊辅音 浊化。stand sister sport school skirt,Words reading,zip zoobuzz Easy pleasePossessexample,Sentences Reading,Self do,self have.Im sea-sick.I give you a box of sweets.As said,so done.This is a smokeless zone.You can stay as long a
4、s you please.,/舌尖齿背摩擦音,舌尖在上下齿之间，略微伸出，气流由舌齿间的窄缝流出，摩擦发音。/是清辅音，声带不振动。/是浊辅音，声带振动。/:d/ri:/i:/,Words Reading,/Think thumbThree teeth/This thoseFather with,Sentences Reading,There are three girls in my family.Im the third.Easier said than done.They who know nothing fear nothing.I will buy a pair of leather
5、 shoes this afternoon.,对比练习,/s/Sing thingSort thoughtSank thank/z/Close clotheSees seethe,/舌端齿龈后部摩擦音,舌尖和舌端抬向上齿龈较后部，整个舌身抬起靠近上颚，形成一条狭长的通道，气流由此通过摩擦发音。双唇稍向前突出。略成长方形。/是清辅音，声带不振动。/是浊辅音，声带振动。/u:/i:p/fi/si:/det/le/,Words Reading,Ship Sure Asia RussiaPressure ConsciousChef situationSocial ocean Pleasure gara
6、ge seizure,Sentences Reading,What shall be shall be.The Chinese dishes he cooks are delicious.Eat at pleasure,drink with measure.I usually watch television in my leisure hours.,/h/声门摩擦音,口自然张开，气流不受阻碍自由冲出口腔，只在通过声门时产生摩擦发音口型依后面的元音而变化。声带振动。/h/hi:/hik/hed/hd/,Reading Exercises,hat heel who wholeA:Do you k
7、now Henry?B:Yes.He is tall.His left hand was hurt in a war.He has a warm heart and often help others.,/r/舌尖齿龈后部摩擦音,舌尖向上卷起，停在口腔中央，舌前部下陷略成凹形，舌身两侧收拢，双唇略突出，气流从舌面与硬腭间留出发音。/r/ri:/rik/red/rd/,Reading Exercises,rat breadsorry carryRest breeds rust.Every morning,Granny prepares breakfast for me.When the breakfast is ready,shell call me.I like best to eat bread and butter.,
