Jellyfish (水母) are badly named. They are neither a fish nor made of jelly. Instead, their bodies are made up of 95% water and 5% solid matter. They have been in existence for at least half a billion years. Therefore, they are older than dinosaurs. Surprisingly, they don’t have a...
A sea turtle(乌龟)swims through the water and sees a white object floating(漂浮). “Yum!” it thinks. “A jellyfish!”, the turtle eats it as its dinner. But the object isn’t a jellyfish﹣it’s a plastic bag that could make the sea turtle sick. This sea creature isn’t alone:...
Fish breathe ___ through their gills.5. 填空题：Did you ever watch a ___ (小蛇) slither?6. 选择题：What do we call the famous American space agency?A. NASA B. ESA C. JAXA D. CNSA 7. 听力题：The classroom is ___ (quiet/noisy).8. 填空题：The puppy grows into a big ___....
As you make your way to the beach this summer, you might want to brush up on your knowledge of one of the ocean’s most simple but elegant creatures – the jellyfish. They are comprised of 95 percent water and have just a basic nervous system that allows them to smell, detect light,...
A sea turtle(乌龟)swims through the water and sees a white object floating(漂浮).“Yum!” it thinks. “A jellyfish!”, the turtle eats it as its dinner. But the object isn’t a jellyfish﹣it’s a plastic bag that could make the sea turtle sick. This sea creature isn’t alone: ...
B A se a turtle swims through the water and spots a white object floating near the surface. “Yum!" it thinks. “ A jellyfish!"Chasing after its dinner, the turtle swallows the item. But the floating object isn't a jellyfish-it's a plastic bag that could make the se a turtle sic...
The jellyfish commonly known as a Portuguese man o’ war is neither Portuguese, nor a jellyfish, nor a man, nor even a singular organism. If you can cope with those facts, you can begin to understand River McIntyre, an elite high school swimmer who’s bad at counting laps. ...
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those low pressure whirlpools form near the creature's forward-facing surfaces, sucking in the water ahead of the lamprey and propelling the animal forward. the jellyfish is the same way: both animals essentially suction their way through earth’s oceans. sean p. colin that mechanism makes ...
Settling Johnny into a kayak, Jeff eased himself into the water. Swimming while dragging another person was very tough. But worst of all, Jeff had to struggle with jellyfish. “I occupied my mind by counting the number of times I got stung (蛰),” he says.After the two men completed ...