Correct

半拉 vs 半个 vs 一半(近义词)

/ Bànlǎ yus bànge yus yībàn /
Strokes

Definition

half (of sth.)/ half( of sth.) /half

Example

用法1
1)半拉 and 半个 are numeralclassifier phrases,while 一半 is a numeral.All the three mean "one half".
2)半拉 and 半个 mean"one half of sth."
1
chī
le
píngguǒ
苹果
  
,
bàn
ge
  
(
  
/
bàn
半拉
  
)
jiù
gòu
le
  

An apple is too much for me and half is enough.

2
Zuótiān
昨天
chī
shèngxià
剩下
de
bàn
ge
  
(
  
/
bàn
半拉
  
)
guā
西瓜
  
,
jīntiān
今天
jīng
已经
huài
diào
le
  

The rest half of the watermelon left yesterday has gone bad.

3
Gōngchéng
工程
hái
yào
需要
bàn
ge
  
(
  
/
bàn
半拉
  
)
yuè
zuǒyòu
左右
  
,
jiù
jiéshù
结束
  

It will take us about half a month to complete the project.

用法2
1)一半 means"1/2"and can be applied to concrete things,e.g.in examples①② 一半 can be used instead.Therefore,when referring to concrete things the three are interchangeable;while in example③,when referring to time,半拉 and 半个 will do,but not 一半.
2)一半 one half that is can be applied to the more abstract:
3)In the two examples above,半拉 or 半个 can't be used,but 半半拉拉 is often used in colloquial speechmeaning unfinished:
4
Zhè
piān
wénzhāng
文章
zhī
xiě
le
bàn
一半
  

Only half of the article has been finished.

5
目的地
háiyǒu
还有
bàn
一半
de
chéng
路程
  

There is still a half journey to go.

6
Wénzhāng
文章
zěnme
怎么
xiě
le
bànbàn
半半拉拉
de
jiù
fàngxià
放下
le
  
?

Why don't you complete the rest of the article?