Methods to prevent cats from scratching curtains:
1. Prepare a few more scratching boards for cats so that they have a place to sharpen their claws, so that they will no longer scratch the curtains.
2. Spray lemon water on the curtains. Cats hate the smell and will stay away from the curtains.

3. When you find a cat scratching the curtains, you should stop it in time, scold it, pat its head gently, and scare it so that it will not dare to scratch it in the future.

4. Buy more toys for the cat to play with. When the cat is attracted by the toys, it will weaken its desire to scratch the curtains.

5. When you find the cat scratching the curtains, spray water on it. The cat will not dare to scratch the curtains again for fear of being sprayed with water.