新概念英语二册 Lesson18 He often does this！ 第（3）套免费课件

Why do people have pets?
1.Like animals; 
2. lovely and beautiful; 
3. look as members of the family; 
4.go out for a walk with them; 
5.can show how rich they are;
6.help people guide the house
7.make family enjoyable;
8. help person feel less lonely;