Read the words below and give the past tense forms. chop connect demand dispute scan fence heat implore insert react list monitor outline reflect rain remember place plan rate pick part participate praise mitigate promote pronounce resent mark lament settle seize select shape judge trim qualify undermine resist diminish 美语发音概述-- 英语发音类别基本分类及常识语音分元音和辅音两大类,每一个语音必定属于这两者之一。元音元音是一种有声音, 发音时用舌头和嘴唇使口腔定形, 声带振动。同时气流从咽腔和口腔不断流出, 不受阻碍, 也没有变狭窄,因而听不出摩擦。辅音(在正常言语中)除元音外所有的其它音都叫辅音。一部分辅音发音时,气流不通过口腔,如[m] ;另一部分辅音发音时,气流在通过口腔时,受到这样或那样的阻碍,或在口腔中的某个点受到摩擦。美语发音概述-- 英语发音类别元音分类 A 根据发音时舌头在口腔中抬起的部位不同,我们把单素元音分为前元音、中元音和后元音。例如: [1] 前元音,口型舒展[ u:] 后元音,口型收拢前元音舌前部向硬颚抬起时发出的元音叫前元音。前元音(Front Vowels) 主要有: 英式英语: [i:] [i] [e] [1] 美式英语: [i] [I] [A] [1] Practice these four sounds in phrases. eat the meat make a wish very well a mad man keep the seat sit down get ready a jazz band three trees best friend a black bag Peter ’s secret a small fish ten men a plastic bag the Chinese people a bit chilly Teddy Bear hand in hand a piece of cheese bit by bit wet with sweat a happy marriage a friend in need fit asa fiddle best seller on behalf of our class 美语发音概述-- 英语发音类别中元音舌中部向硬颚抬起时发出的元音叫中元音。中元音(Central Vowels) 主要有: 英式英语: [4:] [4] [8] 美式英语: 没有[4:] ,多为[4r] ; [4] 与[8] 相同。 Practice these three sounds in phrases. the first term a long term some money learn the words among the workers some honey a firm girl never forget once ina month a nervous nurse a sheet of paper a tough son an early bird a drop of water a funny couple a dirty shirt the teachers of China a sudden jump the third world the doctor ’s daughter just for fun an active learner at the counter blood for blood 美语发音概述-- 英语发音类别后元音发音时舌后部需要向软颚抬起的元音叫作后元音; 后元音(Back Vowels) 主要有: 英式英语: [3][ 3:][u][ u:] 美式英语: [2][3][U][u] Practice these four sounds in phrases. pop music law and order push and pull pop concert daughter-in-law youthful by hook or by crook whose tools a stopwatch according to law the butcher and the crook a new suit clocks and watches talk and walk good looks a g
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