For example, if I have the idiom:
一路平安
Does the tone of the 一 change to a second tone because 路 is fourth tone?
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Sign up to join this communityFor example, if I have the idiom:
一路平安
Does the tone of the 一 change to a second tone because 路 is fourth tone?
Yes it should be pronounced as the 2nd tone because it's put before character with the 4th tone. The sandhi rule applies with idioms too.
The cases 一
should be pronounced as the 1st tone, i.e. shouldn't change the tone, are listed as the follows:
- 单独念时。如:一,一、二、三
- 用在一词或一句的末尾。如:统一祖国,唯一条件,单一成分,表里如一,不论三七二十一
- 表示年、月、日。如:1911年1月1日,一二•九运动,九•一八事变
- 表示序数。如:第一村,第一名,第一等,第一位
(1. when used alone; 2. when used at the end of the word or sentence; 3. when used in date; 4. when used as ordinal number with the meaning "first".)
“一”在上述语境中,不管它后面跟的字是什么声调,“一”的读音都保持其原调阴平,不发生变调。特别要引起注意的是第四种语境,因为许多序数在表述时采用了省略“第”的格式,这时“一”字也应读原调。
(Under the above circumstances, no matter what the following character's tone is, 一
should keep its original tone (i.e. the 1st tone) and doesn't change.)
一张
, that's different with the 4th case listed.