ear 字母组合在什么时候发〔ir]?什么情况发〔er] 发/3：/的音的单词有什么?

ear\u5230\u5e95\u662f\u8bfb\u201d\u4ebf\u800c\u201c\u8fd8\u662f\u8bfb\u201dei er"?

ear\u4e00\u822c\u60c5\u51b5\u90fd\u662f\u8bfb\u201d\u4ebf\u800c\u201c\uff0c\u6bd4\u5982 year
ere \u624d\u662f\u8bfb\u201dei er"\uff0c\u6bd4\u5982 where

\u53d1/3\uff1a/\u7684\u97f3\u7684\u5355\u8bcd\u6709\uff1a
1\u3001certain /ˈsɜ:tn/ pron. \u67d0\u4e9b
\u4f8b\u53e5\uff1a
One thing is certain, both have the utmost respect for each other
\u6709\u4e00\u70b9\u53ef\u4ee5\u80af\u5b9a\uff0c\u90a3\u5c31\u662f\u53cc\u65b9\u90fd\u975e\u5e38\u5c0a\u91cd\u5bf9\u65b9\u3002
2\u3001skirt /skɜːt/ n. \u88d9\u5b50
\u4f8b\u53e5\uff1a
She skirted round the edge of the room to the door.
\u5979\u8d34\u7740\u623f\u95f4\u7684\u5899\u8fb9\u8d70\u5230\u4e86\u95e8\u53e3\u3002
3\u3001sir /sɜː/ n. \u5148\u751f
\u4f8b\u53e5\uff1a
Good afternoon to you, sir.
\u4e0b\u5348\u597d\uff0c\u5148\u751f\u3002
4\u3001nurse /nɜːs/ n. \u62a4\u58eb
\u4f8b\u53e5\uff1a
This is the Nurse Station, we'll help you.
\u8fd9\u662f\u62a4\u58eb\u7ad9\uff0c\u6211\u4eec\u5c06\u5e2e\u52a9\u4f60\u3002
5\u3001fur /fɜː/ n. \u76ae
\u4f8b\u53e5\uff1a
A fur coat has more utility in winter than in autumn.
\u6bdb\u76ae\u5916\u8863\u5728\u51ac\u5929\u6bd4\u5728\u79cb\u5929\u66f4\u6709\u7528\u3002

\u6269\u5c55\u8d44\u6599\uff1a\u53d1/ɜː/\u97f3\u7684\u5b57\u6bcd\u6216\u5b57\u6bcd\u7ec4\u5408\u7684\u5355\u8bcd\uff1a
1\u3001\u901a\u5e38\u60c5\u51b5\u4e0b\u5b57\u6bcd\u7ec4\u5408er,ir,ur\u5728\u91cd\u8bfb\u97f3\u8282\u4e2d\u90fd\u53d1[ɜː],
\u4f8b\u8bcd\uff1acertain /ˈsɜ:tn/ pron. \u67d0\u4e9b
2\u3001or\u5b57\u6bcd\u7ec4\u5408\u5728w\u540e\u4e5f\u53d1[ɜː],
\u4f8b\u8bcd\uff1aworship /ˈwɜ:ʃɪp/ vt. \u5d07\u62dc
3\u3001ear\u5b57\u6bcd\u7ec4\u5408\u540e\u63a5\u8f85\u97f3\u65f6\u901a\u5e38\u53d1[ɜː],
\u4f8b\u8bcd\uff1aearly /'ɜːlɪ/ adj. \u65e9\u671f\u7684

基本上没有规律可言。同一个单词（同形异音或异义词）比如：tear如果为“眼泪”的意思和tear表示“撕破”时的发音就不一样。bear和beard中的ear发音也不一样。
给你更多的例词你有兴趣去进一步研究吧！
ear
year
clear
gear
fear
dear
wear
swear
hear
lear
linear
near
nuclear
smear
pear
appear
reappear
sear
smear
spear
rear

绝大多数发的是clear中的ear音。

ear [i ]
hear dear near clear year 6-10
[ε ]
bear pear wear swear 6-11
[ :]
earth learn early 6-12
ee [i:] jeep week green three
6-13
eer [i ]
pioneer deer beer
6-14
ei/ey [ei] eight neighbour they
6-15

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