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3)声带一定振动,即元音都是浊音。
4)呼出的气流较弱。
5)全是口腔音。
6)乐音响度大。
(2)辅音:
1)气流在通道上受到某种程度的阻挡。
2)只有构成阻碍的那部分发音器官处于紧张状态。
3)声带不一定振动,有浊音和清音之别。
4)呼出的气流较强。
5)?有口腔音和晕音之分。
6)噪音,响度小。
二.?20?个元音:单元音12个:
/ɑ:/? /?:/ ?/??:/ ?/i:/? /U:/? /?? /? /?/ ?/?/? /?/? /?/? /e/? /?/?
双元音8个:
/e?/? /a?/? ?/??/? ?/??/? /e?/?? /??/? ?/??/? /a?/?
前元音4个:/i:/? /?/? /e/ ?/?/?
中元音3个:/?/? /??:/ /?/?
后元音5个:/ɑ:/? /?/ /?:/ /?/? /?u:/?
圆唇音4个:/?u:?/? /?/? ?/?:/? /?/?
1)?[ɑ:]?字母组合 ar? a?
car? farm? card? arm? garden? fast? class? last? glass? plant? aunt? calm?
2)?[?:?]字母组合al? or? au? our? ar?
small? wall? talk? tall? hall? ball? call? walk? short? more? lord? horse? for? forty? sport?
door? floor? store? author? caught? autumn? four? mourn? court? bought? warm?
quarrel? quarter?
?3)[3:]?字母组合ir? ur? ear? er? or?
girl? shirt? skirt ?thirty? thirteen? third? bird? turn? burn? murder? nurse? turtle? Thursday?
burger? learn? earn? earth? heard term? her? nerd? serve? work? worm? word? world?
4)?[i:]?字母组合:ee ??ea ?e? ie? ei?(eo?ey?i)
three? tree? green sheep meet? beef? see? seek eat? tea? meat ?leave? lead? teacher?