HSK 2
Correct

一下儿 vs 一下子

/ yíxiàr vs yíxiàzǐ /
Strokes
https://i.cchatty2.com/filters:format(webp)/fit-in/684x0/img/202005/一下儿vs一下子-Chinese-grammar-Cchatty-yyyy-1589851984.jpg

Formula

1
Verb + 一下(儿)
2
Verb + 一下(儿)
3
一下子 + Verb
4
一下儿(一下子) + 就 + Verb
5
一下子(一下子) + 就 + Adjective/Noun

Definition

一下儿 is a quantifier, means do something once and do it quickly, Verb + 一下儿

 

一下子 used as an adverb, means "all at once", 一下子 + Verb

Example

Verb + 一下(儿), means to do something once and do it quickly
一下儿 is a quantifier, 儿 can be omitted.
Verb + 一下(儿)
1
àn
le
xià
  
(
ér
  
)
ménlíng
门铃
  

I rang the doorbell.

2
qīn
le
xià
  
(
ér
  
)
háizi
孩子
  

I gave the child a kiss.

Verb + 一下(儿), indicate an action lasts for a short time
It is used to make a suggestion or an advice in an easy manner.
Verb + 一下(儿)
3
néng
jiè
xià
  
(
ér
  
)
de
shū
ma
  
?

Can I borrow your book?

4
Zhōu
周末
yào
hǎohǎo
好好
fàngsōng
放松
xià
  
(
ér
  
)
  

I'm going to have a good relax at the weekend.

一下子 + Verb
It is used as an adverb, means "all at once".
一下子 + Verb
5
xiàzi
一下子
mǎi
le
shí
jiàn
fu
衣服
  

She bought ten clothes at one go.

6
xiàzi
一下子
chī
le
3
3
hànbǎo
汉堡
  

He ate 3 hamburgers at once.

一下儿 and 一下子, their similarities
一下儿 + 就 + …… and 一下子 + 就 + ……, both can be used to express that an action takes place or a state comes into being very quickly.
一下儿(一下子) + 就 + Verb 一下子(一下子) + 就 + Adjective/Noun
7
Kàndào
看到
  
,
xiàr  
下儿
  
(
xiàzi
下子
  
)
jiù
le
  

I cried when I saw him.

8
Tīng
shuō
le
hòu
以后
  
,
xiàr  
下儿
  
(
xiàzi
下子
  
)
jiù
míngbai
明白
le
  

After listening to me, he understood immediately.

9
Shíjiān
时间
guò
de
zhēn
kuài
ā
  
,
xiàr  
下儿
  
(
xiàzi
下子
  
)
jiù
40
40
suì
le
  

How time flies! I'll be forty soon.

10
Yào
xià
下雨
le
  
,
tiān
天一
xiàr  
下儿
  
(
xiàzi
下子
  
)
jiù
hēi
le
  

It was going to rain, and suddenly it was dark.

Exercise

Fill in with 一下儿 and 一下子:

 

1, 把碗洗( )。

2, 我想去( )洗手间。

3, 我家的狗( )生了六只小狗。

4, 我亲了她( ),她( )就脸红了。

5, 我能借( )你的书吗?

6, ( )学这么多生词,我记不住。