英语语音课件 Unit 03 Consonants Fricatives and Affricates（可编辑）

英语语音课件 Unit 03 Consonants Fricatives and Affricates（可编辑） Consonants: Stops, fricatives and affricates Unit Two: Stops What are stop consonants? How to discriminate and pronounce stop consonants correctly? Introducing yourself Consonants What are consonants? Stops: /?/ /?/ /t/ /?/ /?/ /?/ What are stop consonants? /?/ /?/ /t/ /?/ /?/ /?/ Practice 1: Listening Page 15: Listening Exercise 1 Voiceless stops At the beginning: strong releasing (送气); pat At the end: very weak; lap Voiced stops At the beginning: vibration before releasing; bed At the end: very weak; robe Practice 2: Speaking Page 16: Speaking Exercise 1 A (1- 5) B (1- 5) C (1- 5) Allophonic variations (音位变位) /?/ /t/ /?/ 在 /s/ 后形成辅音连 缀时，发音时不送气 Spot, stop, sky /?/ /?/ /g/ 当和 /l/ 连缀时，称为 舌侧爆破音 Padlock, clock, glad /?/ /?/ /t/ /?/ /?/ /?/ 当位于词 尾，后接辅音时，不完全爆破 Top tea, sit still, take three, rob the man, Dad said so, lag behind /?/ /?/ /t/ /?/ /?/ /?/ 当两个相同的爆破 音相连时，只需要发一次爆破音，并延长发音时间 Stop Pete, let Tim, take Kim, rob Bob, sad Dave, big grapes /?/ /?/ /t/ /?/ /?/ /?/ 当后面 紧跟的是鼻音时，爆破不在口腔，而在鼻腔 Stop him, rob him, button, bread’ n butter, beacon, pig and goat Practice 3: Speaking Page 16: Speaking Exercise 1 A (6-10) B (6-10) C (6-10) Practice 4: Introducing yourself You are now at a party. The purpose of this party is to get to know others in the class. Go around the classroom and introduce yourself to at lease 3 people. Tell him/her your name, your hobbies, where you come from, etc. Remember one rule: try to make others remember you. Unit Three: Fricatives & Affricates What are fricatives and affricates? How to discriminate and pronounce fricatives and affricates correctly? Fricatives: /?/ /?/ /?/ /?/ /s/ /?/ /?/ /?/ /?/ What are fricatives? Fricatives are made by partially blocking the airflow, thus causing the friction-like noise characteristic of these sounds. Practice 1: Listening Page 26: Listening Exercise 1 Online Practice: Say after me A (1-5) B (1-5) C (1-5) D (1-5) E (1-5) Speaking Exercise 2 Listening Exercise 5 Practice 2: Speaking Speaking Exercise 5 A: a student at Guangdong University of Foreign Studies B: a Canadian friend working in Guangzhou Talk about what you are going to do tomorrow Try to speak fluently and naturally * * Learning Objectives Consonants are made by stopping the airflow in your mouth, either partially or completely. The stop consonants are made by completely stopping the airflow in the mouth, and then releasing the airflow into the sounds. What are the differences between stops at the beginning of a word and those at the end? e. g. pat, lap How to discriminate sounds like need and neat? neat & need: which /i:/ is longer? The vowel in front of a voiced consonant is longer than the one in front of a voiceless consonant. Same or different? /p/ peak /p/ speak /t/ /d/ 当处于辅音组合 /tr/ /dr/ 时，发音兼爆破和摩擦的特征 Train, drain /?/ /?/ 当后接前元音或圆唇音时，发音部位会前移或成圆唇 Keen, geese, quarter, goose /t/ 当处于两个元音之间时，听起来像闪音: letter 当 位于成音节 /n/ 或 /l/ 前时，成了声门爆破音: little /k/ 当位于成音节 /n/ 或 /l/ 前时，成了声门爆破音: bacon Learning Objectives *