1. He eats like a bird.
2.A bird in the hand is worth two in the bush.
3.We’re all early birds in my family because we live on a farm.
4. Birds of a feather flock together.
5.That’s for the birds!
6.It’s an ill bird that fouls own nest.
7. A little bird told me.
Horse
8. He eats like a horse.
9.That’s just a lot of horse and donkey dust!
10.It’s time to study now and stop horsing around.
11.I got it straight from the horse s mouth.
12. Just hold your horses!
13. She works like a horse all day long.
14.That’s a horse of a different color!
15.You can take a horse to the water,but you can't make him drink!
Monkey
16.Don't get your monkey up for nothing.
17. You shouldn't monkey about with that machine, if you don't know how to fix it.
18.What kind of monkey business has been going on while I've been away?
Chicken
19.Come on! Don’t be chicken!
20.Well,she’s certainly no spring chicken.
21.Don't count your chickens before they're hatched!
Owl
22. He is as blind as an owl.
23. He’s a wise old owl.
Bear
24.Every time l see my grandfather,he gives me a big bear hug.
25.Her husband is a real bear.
Bee
26.She’s always as busy as a bee.
Snail
27.He walks at a snail's pace.
Worm
28.He wormed his way through the narrow passage.
29.Every time l take the kids to the movies,they always worm around in their seats.
30.l am a worm today.
31.A worm will turn.
Ants
32.You’d think he has ants in his pants.
Bug
33.It really bugs me when the bus comes late and l can’t go to work on time。
34.l don’t feel well.I think I picked up some kind of bug in my travels abroad
35.He’s a camera bug.
Fish
36.Never offer to teach fish to swim[谚」不要班门弄斧。
37.He’s like a fish out of water.
38.He drinks like a fish。
39.All’s fish that comes to his net。
hog
40.When we were young,my sister and l shared the same bed,but she usually