My favourite animal is the panda.【表示一类东西需要the】
还可这样:
My favourite animals are pandas.Pandas are my favourite animals. 还是Pandas are my favourite animal.
是Pandas are my favourite animal.正确。【pandas当作一种动物,故animal后面不需要-s。】
关于“最喜欢的(东西)”有多种表达:
My favourite animal is the panda. (我最喜欢的动物是熊猫。)
My favourite animal is a panda. (我最喜欢的动物是一只熊猫。)
My favourite animals are pandas. (和1同义)
My favourite animal is pandas. (和1同义)
Pandas are my favourite (animal). (熊猫是我最喜欢的动物。)
The panda is my favourite (animal). (和5同义)