Tongue twisters are always a very effective and funny way to improve one’s pronunciation.
Since Chinese is a tonal language, this adds another difficulty to the tongue twisters, because they also play around with in the tones while pronunciation eventually stays the same. Here is a popular and quite difficult example:
qīng qīng shān shàng yī gēn téng,
qīng téng de xià guà tóng ling
fēng chuī téng dòng tóng líng dòng
Literal meaning: On a green mountain grows a vine. Under the vine there hangs a copper bell. When the wind blows, the vine moves and so does the bell. When the wind stops, the vine stops and the bell stops too.
The following one is more difficult, let´s try:
chī pútao bù tǔ pútao pí,
bù chī pútao dáo tǔ pútao pí.
Literal meaning: When you are eating grapes, don’t spit out the skin. When you are not eating grapes, do spit out the skin.
Not difficult enough? So how about this one?
sì shí sì, shí shì shí,
shísì shí shísì, sìshí shí sìshí,
sìshísì zhi bùshízǐ zhi shíshīzǐ shì sǐ de.
Literal meaning: 4 is 4, 10 is 10, 14 is 14, 40 is 40, 44 illiterate stone lions are dead.
I think that should be enough tongue twisting for today, give your tongue a rest. Practice them more and improve your Chinese pronunciation. This video is of a Chinese learner trying out a tongue-twister. Very funny, enjoy!