The first crocodiles(鳄鱼) lived on the Earth about 240 million years ago. How much do you know about these dangerous animals? Here are some amazing facts about them.
◆ The biggest crocodile is the saltwater crocodile. It can be as long as seven metres!
◆ If you take a bright light at night over a river with crocodiles inside, you will see pairs of red spots (点). Those are the crocodiles’ eyes. They can see well at night.
◆ When you see a crocodile with its mouth open, don’t be scared. That just tells you it’s too hot.
◆ On the beach, crocodiles get tired very quickly, but they can stay in the water for 2-3 hours.
◆ Most crocodiles can live up to 70 years old!
When did the first crocodiles live?
A.About 2,400,000,000 years ago. | B.About 240,000,000 years ago. |
C.About 24,000,000 years ago. | D.About 2,400,000 years ago. |
The writer thinks the crocodile is .
A.lovely | B.dangerous |
C.fun | D.cool |
What’s the meaning of the underlined word “scared”?
A.Happy. | B.Sad. |
C.Comfortable. | D.Afraid. |
Which of the following is right?
A.Crocodiles often open their mouths when it’s hot. |
B.Crocodiles can stay on the beach for 2-3 hours. |
C.All the crocodiles can live up to 70 years old. |
D.The writer talks about four facts about crocodiles. |