,central vowels,Three central vowels,英语中有3个中元音，/，/，/：/，发音时，舌尖微抵下齿，舌平放口中，双唇扁平或放松，不圆唇。,5.1 /,舌后部的靠前部分稍抬起，舌尖微抵下齿，双唇扁平,1. words,Blood dove mug dumb ton run Dull result bulb brother lover rubberRunner under onion bus luck shut Supper upper butter cutting dusting nothing,2. sentences,1) Its fun to run and jump in the sun. 2) The bus doesnt run on Sunday. 3) Ones lovely, the others ugly. 4) Well begun is half done. 5) He told the funny story just for fun.,3. passage,Hurry up! Run! Suppers ready and mothers come. Once a month she came from London. She bought a ton of luggage with her, and a dozen bunches of roses. The fuss and trouble! Treated us like country cousins. You should have seen the color of her gloves. Must have cost a lot of money.,4. Tongue twister,Betty bought some butter. “But,” she said, “this butters bitter. Put a bit of better butter. Will make my butter better”. So she bought a bit of butter. Better than the bitter butter. And it made her butter better.,5. little poem,School is over, Oh, what fun! Lesson finished, Play begun.,Test,bag/bug bat/but cap/cup cat/cut hat/hut lamp/lump match/much rag/rug ran/run sang/sung,5.2 /:/,舌尖触下齿底部，舌身平放，舌中部稍抬起，牙床开得较窄，双唇中常，稍扁。,1. words,fir her were curve heard word burn earn worn curl girl pearlburned earned world earlier further murder birth church skirt dirtier thirstier worker,2. sentences,1) Thursdays the first day of the term. 2) Its the early birds that catches the worm. 3) He was thirsty when he returned from work. 4) First come, first served. 5) They earned their desserts by hard work.,3. tongue twister,The first person in a dirty shirt works in the third firm.,4. little poem,Worms squirm in the earth When first is heard The murmur and chirp Of the early bird.,5.3 / /,牙床半开, 舌平放口中，双唇中常,1. words,about annoy arrive again alive amount forget balloon agree polite potato correctwoman pictures bottom August breakfast member butter counter lecture accept customer sugar,2. sentences,1) The wonderful weather was over. 2) He cant speak Spanish, but his sister can. 3) The students and teachers will have a get-together the day after tomorrow. 4) She doesnt like to go to the cinema or the lecture. 5) He sang for all of us a few moments ago.,Thank you!,