Question

【题目】 Did you ever see a fish with its very own lights? Some fish have built-in lights. That is, the lights are really part of the fish’s body! One such fish lives in the Red Sea. It is called the “flashlight fish” because it has special body parts, or organs, that give off light.

The flashlight fish has one light organ underneath (在下面）each eye. These lights are bright and greenish in color, and they are always “on”. But a flashlight fish can hide its lights by raising an extra (额外的）piece of skin up over each organ. Then, when the fish lowers the skin,the lights can be seen again.

What are these special lights for? The light organs help the fish find food at night along the Red Sea reefs (暗礁).They also help the fish run away. Usually,the lights are flashed “on” and “off’ about once every 20 seconds. But when the fish is worried, it will blink (眨眼）its lights about 75 times in 1 minute. Can you imagine 20 or 30 flashlight fish blinking their lights all at the same time?

【1】In the passage,the underlined word “organ” means _____.

A.an extra piece of skinB.a special body part

C.a kind of eyeD.a kind of ear

【2】The flashlight fish uses its lights to hunt for food and to .

A.change colorB.hide its eyes

C.run away from dangerD.catch other fish

【3】When a flashlight fish is worried, its lights will .

A.flash more slowlyB.flash faster

C.turn bright greenD.blink many times

【4】How often are the lights usually flashed?

A.Three times a minute.B.Twice a minute.

C.About 75 times a minute.D.Once a minute.

Answer 1

【答案】

【1】B

【2】C

【3】B

【4】A

【解析】

本文主要介绍了生活在红海中的闪灯鱼。

【1】词义猜测题。根据前面的“because it has special body parts”可以猜测出organs意为“特殊的身体部位”。故选B。

【2】细节理解题。根据第三段“They also help the fish run away.”可知闪灯鱼用它的灯除了可以觅食，还可以逃跑。故选C。

【3】细节理解题。根据第三段“Usually, the lights are flashed “on” and “off’ about once every 20 seconds. But when the fish is worried, it will blink (眨眼）its lights about 75 times in 1 minute.”可知通常闪灯鱼每20秒钟闪灯一次，但他害怕时，每分钟闪灯75次。

可以推算出闪烁次数快了很多。故选B。

【4】推理判断题。根据第三段“Usually, the lights are flashed “on” and “off’ about once every 20 seconds. ”可知每20秒一次，一分钟是60秒，所以可以推算出，一分钟闪烁3次。故选A。