英语字母e 的发音规则是什么?经常用到[i]和[e]两个音,在不同单词中的发音有没有规律?

元音字母在重读音节中的读音
e
在开音节中
[i:]
he these me Chinese
在闭音节中
[e]
bed let pen desk yes egg
i
在开音节中
[ai]
bike fly drive time nice kite
在闭音节中
[i]
fish big drink sit milk swim
元音字母在非重读音节中的读音
元音字母
读 音
例 词
a
[E]
China another woman breakfast
[i]
orange comrade village cabbage
e
[E]
hundred student open weekend
[i]
chicken pocket begin children
i
[E]/[i]
holiday beautiful family animal
元音字组在重读音节中的读音
元音字组
读 音
例 词
[i:]
teach easy cheap please
[e]
heavy bread sweater weather
[ei]
break great
ear
[iE]
hear dear near clear year
[εE]
bear pear wear
[E:]
earth learn early
ee
[i:]
jeep week green three
eer
[iE]
pioneer deer beer
ei/ey
[ei]
eight neighbour they
[i:]
either key