Question

The first crocodiles(鱷魚) 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 (點). 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!

1. 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.

2. The writer thinks the crocodile is 　　 .

A. lovely B. dangerous

C. fun D. cool

3. What’s the meaning of the underlined word “scared”?

A. Happy. B. Sad.

C. Comfortable.D. Afraid.

4. 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.

 

Answer 1

1.B

2.B

3.D

4.A

【解析】

試題分析：本文敘述了鱷魚在2.4億年前就生活在地球上，最大的鱷魚是鹽水里的鱷魚，長達7米，晚上鱷魚的視力也很好。當(dāng)鱷魚感到熱的時候，它就會張著嘴。它的壽命一般能達到70年。

1.細節(jié)理解題。根據(jù)The first crocodiles(鱷魚) lived on the Earth about 240 million years ago.鱷魚在240，000，000年前生活在地球上，故選B。

2.細節(jié)理解題。根據(jù)How much do you know about these dangerous animals? 可知作者認為鱷魚是危險的動物，故選B。

3.小題3】詞義猜測題。根據(jù)When you see a crocodile with its mouth open 可推知這里可能誤認為鱷魚要吃人，所以人們都會感到害怕，故選D。

4.4】細節(jié)理解題。根據(jù)When you see a crocodile with its mouth open，That just tells you it’s too hot.可知鱷魚熱的時候就張著嘴，故選A。

考點：科普類短文閱讀。