Sharks
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SHARKS PowerPoint PPT Presentation


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SHARKS. Paragraph 1:Sharks Definition Paragraph 2:Shark’s Detection System Paragraph 3:Shark’s Eggs Paragraph 4:The Most Dangerous Shark Paragraph 5:Shark’s Enemy. General Classification. General Classification. General Classification. General Classification. Discription.

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SHARKS

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Sharks

SHARKS

  • Paragraph 1:Sharks Definition

  • Paragraph 2:Shark’s Detection System

  • Paragraph 3:Shark’s Eggs

  • Paragraph 4:The Most Dangerous Shark

  • Paragraph 5:Shark’s Enemy

General

Classification

General

Classification

General

Classification

General

Classification

Discription

Lexicogramaticall:Simple Present Tense


Paragraph 1 sharks definition

Paragraph 1Sharks Definition

AShark is a carnivorous fish that can be found all over the world.Many people think,shark is a dangerous creature.But,from 350 species,only 27 species which have ever attacked people.In fact,many sharks only eat fish.


Paragraph 2 shark s detection system

Paragraph 2Shark’s Detection System

AShark has a perfect detection system to cacth its prey.It can smell blood in radius of 100m.The other system is lateral line.Using it,a shark can detect the wave movement that is caused by its prey.A shark can also detect its prey’s electrical wave,using a detector that is called Lorenzini Blister.


Paragraph 3 shark s eggs

Paragraph 3Shark’s Eggs

Mermaid’s pocket

Shark is an ovipar animal.In many species,the shark’s eggs hatch inside its parent’s body,and will go out alive after they hatch.But,one of some species, like a dogfish shark,it will put its eggs outside the parent’s body.Then, it will go away,and let the eggs hatch itself. The shark’s eggs are growing inside a pocket,called “Mermaid’s pocket”.One egg is in one pocket.


Paragraph 4 the most dangerous sharks

Paragraph 4The Most Dangerous Sharks

Many people think,the most dangerous shark is Great White Shark that can reach more than 6 meters long.Although it has a “man-eater” reputation, In fact,This shark seldomattacks people .Theyusually just eat seal or fish.On the other side,the biggest shark isn’t a dangerous animal.It only eat plankton.


Paragraph 5 shark s enemy

Paragraph 5Shark’s Enemy

Sharks also have enemiesincluding the other sharks,whales,dolphin,and human. Dolphin and whales can beat a shark easily.In a battle,a dolphin will attack the shark’s belly using its spout.However,the shark’s primary enemy is human.


The end

THE END


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