Whales and dolphins aren't fish. They have to rise to the surface for air. They sleep by resting half the brain at a time. The other half remembers to come up and breathe!词汇 predator /'predato(r)/ n.捕食性动物detect/di'tekt/ v.察觉速记eyelid /'arlid/ n.眼皮still /stil/ adj....
解析 答案见上【答案】B【核心短语/词汇】sleep: 睡觉【翻译】你知道鱼睁着它们的眼睛睡觉吗?【解析】A 什么; B做连接词时,无实意;C 谁;D 如何。结合句子大意”你知道__鱼睁着它们的眼睛睡觉吗?“可知,此处know(知道)后面的宾语从句是一个结构和意思都完整的句子,所以此处连接词只能用that; 故答案是B...
Almost all animals need to sleep to stay healthy. But sleeping can be dangerous. other animals may hunt sleeping animals, animals have many different ways of sleeping that help them stay safe. Some of these ways may surprise you! 介绍 几乎所有的动物都...
They have flippers, which help them to steer, and blowholes, which allow them to breathe. The tail is made of two lobes called flukes. The tail moves up and down (as opposed to the side-to-side movement of most fish) to propel the whale through the water. Their torpedo shape also ...
Animals sleeping in the sea can be astrange sight. Fish sleep with their eyes open. They do not haveeyelids, so they seem to stare into the depths while theynap. Sea otterssometimes sleep in beds ofseaweed. This keeps them from floating away.Parrotfishblow aclear gelfrom their mouths when...
But how do you know if a fish is sleeping? 1.___ Fish do not lie down either.Although fish may not sleep like people, they do rest. One way to know if a fish is resting is to watch what it is doing. 2.___ Some fish move at the bottom of the water. Some move slowly ...
I Shh! Be Quiet!How do animals sleep in the wild? Animals usually lie down to sleep, but some animals sleep standing up, and even sleep while swimming or flying! So strange! Look! They are sleeping! Be quiet!An owl is sleeping with one eye open. A fish is sleeping with two eyes ...
小学英语作文:How to keep healthy 8 We should keep a healthy body.A, insist to take exercise an hour every day to eat fruit and vegetables every day, dont sleep late, early to bed and early to rise, a month to see a dentist, brush your teeth in the morning and evening, eat three ...
The environment plays a crucial role in how fish sleep. Fish that live in environments with high predation risk may have developed the ability to remain more alert during rest. Additionally, some fish may choose specific locations to rest, such as the bottom of a body of water, where they ...
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