Question

【題目】 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 (額外的）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】

本文主要介紹了生活在紅海中的閃燈魚。

【1】詞義猜測題。根據(jù)前面的“because it has special body parts”可以猜測出organs意為“特殊的身體部位”。故選B。

【2】細(xì)節(jié)理解題。根據(jù)第三段“They also help the fish run away.”可知閃燈魚用它的燈除了可以覓食，還可以逃跑。故選C。

【3】細(xì)節(jié)理解題。根據(jù)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.”可知通常閃燈魚每20秒鐘閃燈一次，但他害怕時，每分鐘閃燈75次。

可以推算出閃爍次數(shù)快了很多。故選B。

【4】推理判斷題。根據(jù)第三段“Usually, the lights are flashed “on” and “off’ about once every 20 seconds. ”可知每20秒一次，一分鐘是60秒，所以可以推算出，一分鐘閃爍3次。故選A。