用作定语
▲～+n.
He wears a protective clothing.他穿了一件防护衣。
We feel safe with a protective device in the house.我们因为家里有了防护装置而感到安全。
用作表语
▲S+be+～+prep.-phrase
A mother naturally feels protective towards her children.做母亲的天生要保护自己的孩子。
She's too protective towards her children; she should let them be more independent.她对孩子太过爱护,她应当给她们更多的独立性。
