双元音课件

/ɔi/ ɔ
发音要点：由后，低元音/ɔ/向前， ɔ 高元音/i/滑动，口形由开，圆逐渐 变为合，扁，尾音短促 音素体验：a boy; a toy; a coin; a noise; oil, boil
Dialogues
1) A: Can I help you? B: I want some oil, some oysters, and some boiled eggs. A: Anything else? B: And some corn, that’s all
Speak out
1) Come and enjoy the oysters 2) The smell of oil is most annoying . 3) Let us join hands in friendship.
4) I’m in a hurry, so get to the point.
/ əu /
发音要点：口型由中元音/ə/向后元 音/u/滑动，双唇由扁平变成合圆形， 到/u/的位置就停止发音 音素体验：a potato; a tomato; a nose; a home; a ill you do tomorrow？ B: let’s go to the Summer Palace to row a boat, shall we? A: Oh, I’ve listened to the radio. The broadcast says tomorrow it will rain. A: In that case, we could just stay at home.
A: I’m going to the grocery store. Would you like to go with me? B: Sorry. I have to write a letter. A: Anything I can do for you? B: Can you get some tomatoes for me? A: Ok. How many do you want? B: One kilo. Thanks.
2) A: I want to buy a toy for Roy. B: For Roy? You want to buy him another toy? A: Why not? He enjoys playing with toys. B: He enjoys destroying toys. You’d better not to spoil the boy.
/ ai /
发音要点：由舌位低、口型大的前 元音//向舌位高、口形小的//滑动。 发音时舌尖要抵住下齿。 音素体验：a kite; a knife; a pie; a lighter; an icecream
Dialogues
A: You bought a new motorcycle, didn’t you? B: Yes. How do you like it? A: It’s really stylish. Did you ride it? B: Sure. I’ve tried it.
Speak out
1) Strike while the iron is hot.趁热 打铁 2) Time and tide wait for no man.岁 月不待人。 3) A stitch in time saves nine.及时 处理，事半功倍。
4) Great minds think alike. 英雄所 见略同 5) All day long the sun shines bright, The moon and the stars come out at night. From twilight time they line the skies, And watch the world with quite eyes.
A: Hey, Rachel. Did you take the test？ B: No, I couldn’t make it. A: How come you couldn’t make it? I went to see a Broadway Play. What a shame! When will you take the makeup test? Maybe in April or May?
A: Try the French fries. B: Well, the smell is so nice. Mm, they are fried really well. A: Let’s have icecreams for dessert. B: How many icecreams are there in the fridge? A: Let me see. Nice. Three of them are pineapple flavor. B: Well, I prefer pineapple flavor icecreams.
Great Greek（希腊） grape growers grow great Greek grapes, but the Greeks do not eat the grapes the great Greek grape growers grow.
If you notice this notice, you will notice that this notice is not worth noticing
Speak out
1) Don’t go home alone, Joan. 2) Little stroke fell great oaks.水滴 石穿 3) As you sow, you shall mow.种瓜 得瓜，种豆得豆，
4) A straw will show which way the wind blows.草动知风向。 5) I’d like to propose a toast.我提议 干杯 6) I know what you know. 我知道 你知道什么
Speak out
1) No pain, no gain.不吃苦中苦，没 有甜上甜 2) Call a spade a spade. 实话实说 3) A penny saved is a penny gained.省下的既是赚的
4) Haste makes waste.欲速则不达 5) I hate to trouble you, but…我不 想麻烦你，但是… 6) There’s no way I can get out of it. 我无能为力
双元音
合口双元音与集中双元音
双元音是由两个音合二为一，发音 时由第一个音向第二个音滑动过程 中没有任何停顿。 双元音发音饱满、圆润。第一个音 长而响亮，第二个音短而模糊. 前重 后轻，前长后短 避免把双元音单音化
合口双元音
/ei/ /əu/ /ai / /au/ /ɔi/ ɔ
/ei/
发音要点：口形由/e/向/i/滑动，下 巴向上合拢，舌位随之抬高。 a table; a plate; a cake; a radio; an ashtray; a beefsteak
Dialogues
1) A: What a beautiful cake! B: Yes, it’s Kate’s birthday cake. A: How old is she? B: She is eighteen today. A: Happy birthday to Kate.
2) A: Mrs. Taylor’s a good dressmaker, isn’t she? B: Yes. The newdress she made is great. A: Maybe I need her to make one for me. A: Wait a sec, Jane. It’s time to bake the bread.
/au/
发音要点：由舌位低，口形大的/a/ 向舌位高，口形小的后元音/u/滑动， 结束时双唇收圆稍向前突。 音素体验：a cow; a mouse; a house; a towel; an accountant;
Dialogues
1) A: Nice to meet you, Mrs. Brown. B: Nice to meet you, too. Mr. Howard. A: Listen. Who’s shouting? B: That’s my son singing. But he sounds like he’s shouting.
Tongue twister
No need to light a night light on a light night like tonight.
Ten tiny tigers tied ten tiny ties on their tiny tails.
A tidy tiger tied a tie tighter to tidy her tiny tail
4) Get out of my house now. 5) I’ve heard so much about you. 6) How about going downtown now？
7) The owl(猫头鹰) looked down with his great round eyes. At the low clouds and the dark skies “A good night for scouting（觅食）,” says he. With never a sound I’ll prowling（搜 寻） around. A mouse or two may be found on the ground. Or a fat little bird in a tree.
5) It’s a joy to watch the boy playing with his toy.