Why are some animals pets and others lunch?

    In some countries, dogs and cats are commonly considered as pets, while chickens, ducks, and {#blank#}1{#/blank#}(猪) are food. However, in some other countries dogs and cats are food, and the food animals are pets.

    People {#blank#}2{#/blank#}(分开,将……分成) animals into several kinds to their own needs. For example, you may have{#blank#}3{#/blank#}(朋友) who keep rabbits as pets. Some people {#blank#}4{#/blank#}(烹饪) rabbits as dishes. People treat a rabbit as a pet because it {#blank#}5{#/blank#} (带来) them pleasure. They eat it, for they think it is a kind of meat. They kill it because they believe it is  {#blank#}6{#/blank#} (有害的) to plants or people.

    People also treat animals differently based on their own cultures. Most of us have dogs as pets. Dogs live in our house, like a {#blank#}7{#/blank#}(成员) of the family. However, in some cultures, dogs are considered unclean. People{#blank#}8{#/blank#}（几乎不）ever keep them as pets. In some parts of Southeast Asia, dogs are on the menu. {#blank#}9{#/blank#}（百万）of dogs are killed every year.

    What's {#blank#}10{#/blank#}（正确的）and wrong in the way we treat animals?