aeiou短音与名词1.ppt

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z;构成发音的最小单位就是音节。一个单词里有多少元音字母就有多少音节。如hotdog. 如何区别开音节和闭音节： 开音节：1.以发音的元音字母结尾的音节，如be, she.结构：辅音+一个元音 2.以辅音字母（w, y除外）+不发音的e结尾的音节。如make, cake.结构：辅音+一个元音+一个或几个辅音+不发音的e 闭音节：以一个或几个辅音字母结尾而中间只有一个元音字母的音节。如map, desk.;元音字母a、e、i、o、u的短音;a的发音[Q] 1.a+辅音， 2.辅音+a+辅音。当a后接[s]时，a发长音[A:],如class had nap van max tag a cat a fat cat a bat a bad bat A bad bat sat on a fat cat. Dad Dad is sad. Dan Dan is mad. Sad dad and mad Dan ran on the sand. ;e的发音[e] 1.e+辅音 2.辅音+e+辅音 fed let when best fell My hen, my hen, Lay an egg everyday. They will hatch, hatch, Grow up slowly. Some of them will be hens, Then I can get more eggs everyday.;i的发音[I] 1.i+辅音 2.辅音+i+辅音。辅音+ild或ind，i发字母本音[aI]，如child, kind.字母组合igh中，gh不发音，i发字母本音[aI]，如high. sit fig till link lip Two big ships sailing on the sea. One is pink, the other is gray. One is to north, the other is to south. Now no ship is on the sea. ;o的发音[X] 1.o+辅音 2.辅音+o+辅音。辅音+old和辅音+oll这两种结构中o发字母本音[Eu]，如fold, roll. spot shop rob clock box In Todd’s room there are many clocks. Clock on the head of bed, Clock on the foot of bed, Clock on the desk, Clock on the wall. But none of them can wake Todd up.;u的发音[V] 1.u+辅音 2.辅音+u+辅音 run cut duck must rug a bug A bug can jump. a bus A bus can stop. The bug jumped up onto the bus. a cop a cop with a gun A cop with a gun is running in the sun.;名词;1.1 名词的种类;1.2 名词的数;名词复数的规则变化;3.以f或fe结尾的词，先将f或fe变成v，再加-es,读[vz]. eg.shelf→shelves[?elvz] knife→knifves[na?vz] 有时，以f或fe结尾的词变复数时，不需按上述变化，而只需在词尾直接加-s。如 belief→beliefs[bIli:fs] chief→chiefs[t?i:fs] roof→roofs[ru:fs] proof→proofs[pru:fs] safe→safes[seIfs] gulf→gulfs[g?lfs] 还有一种特殊情况即手帕(handkerchief)有两种复数形式，加-s或变f为v，再加-es，读音跟以上原则相同。 ;4.以o结尾的词，大部分在词尾加-s，少数加-es，读[z]. eg. hero→heroes[hI?r?uz] Negro→Negroes[ni:gr?uz] potato→potatoes[p?teIt?uz] toma