th字母组合的发音规律
1.在th后以字母-er结尾的单词中,th读浊辅音/ð/。例:altogether/ɔ:ltә'geðә/,
farther/'faðә/, feather/'fe ðә/,
whether/'we ðә/,either/'aiðә/,gather/'gæðә/ 2.一般情况下,在代词、冠词、介词、连词或副词中的字母组合th,读浊辅音/ð/。
例:within/wi'ðin/,without/wi'ðaut/,these/ði:z/,therefore/'ðeәfɔ:/,
al-though/ɔ:lðәu/,those/ ðәuz/,the/ ðә/,thus/ ðas/ 发音特殊的单词:through/θru:/,throughout/θru:'aut/ 3.字母组合th在数词(包括基数词和序数词)中读清辅音/θ/。
clothes的th发什么音例:three/θri:/,thirty/'θә:ti/,thirteen/'θә:'ti:n/,third/ θә:d/,fourth/fɔ:θ/,fiftieth/'fiftiiθ/,
thousand/'θauzәnd/,hundredth/'handrәdθ/
4.除上述单词外,一般位于词首的th读/θ/。
例:theatre/'θiәtә/,thick/θik/,thin/θin/,
throat/θrәut/,theory/'θiәri/,thrust/θrast/,
thread/θred/,thorough/'θarә/,Thursday/'θә:zdi/ 5.以th结尾的单词,th读清辅音/θ/。
例:truth/tru:θ/,worth/wә:θ/,breath/breθ/,both/bәuθ/,cloth/klɔθ/,pa th/pa:θ/,wealth/welθ/,length/leŋθ/,strength/streŋθ/
发音特殊的单词,例:smooth/smu:ð/
6.在复合词中,th的读音与在原词中的读音相同。
例:something / 'samθiŋ/,anything/'eniθiŋ/,nothing/'naθiŋ/
还有前面提到的within,without等。
7.其他无规则可循的词分列如下:
maths/mæθs/,arithmetic/ә'riθmәtik/,
clothing/klәuðiŋ/,
clothes/klәuðz/,southern/'saðәn/,northern/'nɔ:ðәn /,
worthy/'wә:ði/,author/'ɔ:θә/,sympathy/'simpәθi/

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