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“Shine in the dark” dolphins may seem li...

    “Shine in the dark” dolphins may seem like something straight out of a science fiction movie. However, that is precisely what Newport Coastal Adventures' Captain Ryan Lawler and professional videographer Patrick Coyne witnessed, when they set out to explore the spectacular blue tides that have been lighting up the waters off Southern California's coast since mid-April.

The partner scanned the ocean for hours and was returning to shore when they spotted the “electric” dolphins swimming through the bloom of shining plankton(浮游生物). The videographer, who had seen the phenomenon only once before in a Netflix show, says catching the scenes proved to be a lot harder than he had expected. “For starters, the shining plankton has sweet spots to where it shows up and then fades away, so while on the water, it's impossible to just find it,” Coyne says. “Also, conditions have to be absolutely perfect for the shining plankton to show and for animals to swim through it so we can film it.”

Though witnessing shining sea life is rare, the electrifying blue ocean scenery is a fairly common sight around Southern California between February and September. The phenomenon can be attributed to the presence of millions of plankton, which tend to gather and reproduce in large quantities in the warm coastal waters during this time.

Though a majority of California's red tides are caused by plankton species that do not produce deadly poison, some algal blooms(藻花)can be dangerous for sea animals, especially when they stay for long periods of time. In 2018, an almost year-long “red tide” along Florida's Gulf coast caused by the excessive growth of microalgae Karenia Brevis, killed hundreds of fish and other sea animals.

1.What does the underlined phrase “sweet spots” in paragraph 2 mean?

A.A sea plant. B.A lost world.

C.A perfect moment. D.A missing camera.

2.What is the main reason for the sea life shining?

A.They absorb the light in the ocean and then reflect it.

B.They are surrounded by millions of shining plankton.

C.They swim through the ocean with electricity in large quantities.

D.They benefit from the warm water to power themselves.

3.What caused the death of some sea animals according to the text?

A.Red tides. B.Human exploration. C.Warm water. D.Algal blooms.

4.In which section of a newspaper may this text appear?

A.Science. B.Health. C.Entertainment. D.Education.

 

1.C 2.B 3.D 4.A 【解析】 这是一篇说明文。文章介绍了发光的浮游生物,以及说明了浮游生物过度生长会导致海洋生物的死亡。 1. 词义猜测题。由第二段中的的“For starters, the shining plankton has sweet spots to where it shows up and then fades away, so while on the water, it's impossible to just find it,”首先,发光的浮游生物在它们出现和消失的地方都有自己的闪光点,所以当它们在水面上的时候,要找到它们是不可能的。可知,发光的浮游生物在它们出现和消失的地方都有自己的闪光点,可以推断,“sweet spots”指的是浮游生物出现和消失的地方,是一个完美的时刻。故选C项。 2. 细节理解题。由第三段中的“Though witnessing shining sea life is rare…The phenomenon can be attributed to the presence of millions of plankton, which tend to gather and reproduce in large quantities in the warm coastal waters during this time.”虽然亲眼目睹闪亮的海洋生物是罕见的……这种现象可以归因于数以百万计的浮游生物的存在,它们在这段时间里倾向于在温暖的沿海水域大量聚集和繁殖。可知,海洋生物发光的主要原因是,它们被数百万闪亮的浮游生物包围着。故选B项。 3. 细节理解题。由第三段中的“Though a majority of California's red tides are caused by plankton species that do not produce deadly poison, some algal blooms(藻花)can be dangerous for sea animals, especially when they stay for long periods of time… killed hundreds of fish and other sea animals.”尽管多数加州的赤潮是由不能产生致命的毒药的浮游生物物种造成的,一些藻花对海洋动物是危险的,特别是当它们保持很长一段时间……导致数百条鱼类和其他海洋动物死亡。可以推断,造成海洋生物死亡的原因是藻类的繁殖。故选D项。 4. 推理判断题。根据文章内容可知,文章介绍了发光的浮游生物,以及说明了浮游生物过度生长会导致海洋生物的死亡。可以推断,这篇说明文可能出现在报纸的科学版面。故选A项。
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