Unit 3 Letters and Phonemes --- 张露云
vowels and consonants Questions: Are vowels and consonants the same? Do you know the differences between vowels and consonants? What are the feathers of vowels/consonants?
Differences: Vowels: air stream flows without stop be relax and nature clear and loud Consonants: air stream is stopped by a certain vocal break through the stop less clear and loud
清辅音和浊辅音（ voiceless and voiced consonant ） 发音时声带不振动的辅音叫清辅音。 发音时声带振动的辅音叫浊辅音。 How many voiced consonants have you learnt?
/i/
/i:/ & /i/ sin-seen, fill-feel, hill-heel, sick-seek, pitch-peach, rid-read, grin-green, chick-cheek Phrases: a big clinic, a bit chilly, finish it, bit by bit, little by little, pretty beauty
Learn together 词组、短语练习： real eastate 不动产 body building 健美运 动 sweet dreams 美梦 latchkey kids 自带门房 钥匙的孩子 a Los Angeles freeway 一条洛杉矶超 速干道 句子练习： Believe me. 相信我。 It's a deal. 一言为定。 I mean it. 我是认真的。 Zip your lips! 闭上你的嘴！ It's Greek to me. 我完全听不懂。 Business is business. 公事公办。 A friend in need is a friend indeed. 患难之交才是真朋友。 He is extremely happy. 他高兴极了。 Anything to drink? 喝点什么吗？ What do you feel like eating? 你想吃点什么？ Seems like all you do is eat and sleep. 好像你成天除了吃就是睡。 I beat him down to fifteen. 我把价给他杀到了 15 元。
Diphthongs( 双元音 ) ＊ Diphthongs are sounds which consist of a movement or glide from one vowel to another. ＊ The most important thing is the first part is much longer and stronger than the second part. ＊ There are eight diphthongs.
双元音特点 由 A 向 B 自然过渡 滑动动作大，而且连续 前清楚后模糊 前重后轻 前长后短
Diphthongs: Centring (ending in ә): /iә/, /eә/, /uә/ (ending in i): /ei/, /ai/, / ɔ i/ Closing ( ending in u): /әu/, /au/
/ei/
/e/ & /ei/ said-say, let-late, pen-pain, get-gate, men-main wet-wait, red-rate, ate-eight Phrases: a heavy rain, table tennis, a railway station, a terrible headache, a game of chess No pains, no gains. Haste makes waste. Better late than never.
/ai/
Strike while the iron is hot. Let by-gones be by-gones. Great minds think alike.
/әu/
Phrases: hope so, don't know, so cold, an old soldier, Little strokes fell great oaks. A rolling stone gathers no moss. As you sow you shall mow.
/ ɔ i/