Subject + 被 + 打死
打死 (dǎsǐ) is a resultative verb compound meaning "to beat to death," formed by combining 打 (to hit) and the result complement 死 (to die). This structure shows that the action of hitting led to the result of death. It often appears in the passive construction 被打死 (was beaten to death).
那只老鼠被猫打死了。
Nà zhī lǎoshǔ bèi māo dǎ sǐ le.
That mouse was killed by the cat.
他一巴掌就把蚊子打死了。
Tā yì bāzhang jiù bǎ wénzi dǎ sǐ le.
He killed the mosquito with a single slap.
村民们担心毒蛇会打死家里的小鸡。
Cūnmínmen dānxīn dúshé huì dǎsǐ jiālǐ de xiǎojī.
The villagers worried that venomous snakes would kill the chickens at home.