This is a tut on how to  destract a zombie

1: Build a 5x5 flat stone block platform  -and make sure its high enough that a zombie can go right under it, but still be able to see the villager we will put on top of the platform

2: In the middle of the platform, put a villager and put fencing and/or nether fencing around the villager

When the zombies come, they will try to get to the villager, but it will be impossible for them to do that

Enjoy!