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课件网) Unit 1 R·七年级下册 别让人类成为最孤单的生命！ Reading Plus Objectives know some amazing things about octopuses draw a mind map of amazing things about octopuses know some amazing things about other animals know some amazing things about snails do some exercise about snails Among the many amazing animals in the world, few are as strange and unusual as the octopus. There are around 300 different kinds of octopuses, and they come in all sizes! The smallest is only around 2.5 centimetres long, but some octopuses can grow up to more than five metres long. There was even an octopus over nine metres long! The Amazing Octopus The octopus's body is very interesting. All octopuses have eight arms. Their brain is not just in their head, but also in their arms! This helps them to think about and do more than one thing at once. Octopuses can also fit into small places because they do not have any bones! And did you know that octopuses have three hearts These hearts work with different parts of the body. Octopuses can also do many amazing things. They can change how they look. They can change their colour and shape to look like plants or other sea animals. Octopuses can also make ink. They keep it inside very small bags in their body. When they produce ink, the ink makes it hard for other animals to see them. This helps octopuses to get away fast. What's more, when an octopus loses an arm, it can grow it back! Studying amazing animals like the octopus is important because we can learn a lot from them. But they also show us how wonderful nature is and why it is important to protect it! 1 Body Read the text. Choose six amazing things about octopuses to complete the map. The octopus Ability have eight arms with brains do not have any bones have three hearts think about and do more than one thing at once fit into small places change their colour and shape to look like plants or other sea animals produce ink to get away fast grow their arms back -What are they like They grow hard and heavy shells. The shell is made of calcium carbonate and shaped like a spiral. -What can they do They can thrive successfully in many habitats with different temperatures and conditions -What is amazing about their bodies or abilities The snail’s body is soft and shaped like a tube. Other physical features include a muscular foot, several pairs of tentacles protruding from their head, and two stalks that have eyes on their end. 2 Think of some other amazing animals. Discuss them. Types of Snails Breaf introduction of Snails Snails are a species of mollusks that belong to the family of gastropods. They are easily identifiable by their spiral shell, which they retract into when they are in danger or are resting. The only other species of gastropods are called slugs, with the main difference between them and the snail being the lack of a shell in slugs. They are languid creatures, which has also led to the word “snail” ... ...
