Crocodiles (鳄鱼) lay their eggs and leave them under leaves or sand. Baby crocodiles use their teeth  (break) their way out of the shells.

    Crocodiles are  (find) in Australia   America. They spend most of their time  (lie) around in the rivers. The crocodile's long tail is used when the animal is swimming. It is   excellent weapon(武器). It can be used to strike(打击) the enemies. One blow will knock down a man or even a big animal at once. The crocodile has a hard neck. It cannot turn (it) head from side to side, so it can only see something in front of itself. The crocodile has its teeth (clean) by the crocodile bird. For its food this bird takes the bits in the crocodile's mouth. This helps the crocodile a lot,  it cannot move its tongue up and down. With its terrible  (tooth) it catches its food. The food may be a fish, an animal, or even a  (careful) man.