老师：Hello, boys and girls. I'm very happy to have class with you. I miss Yu. Do you get your English book, your pen and your notebook ready? Okay. Let's begin. Today we will talk about Unit 5, Nature and Culture, Lesson 3. In Lesson 1 and Lesson 2, we Learned seasonal weathers, activities and festivals. In this lesson, we are going to learn something about animals. Let's watch a video first.
老师：This is where we go. Amazing. Animal world, right? Look, Bill and his friends are talking about animals, too. Let's join them, listen and number what they say.
学生：The children are talking about their visit to Animal World. Good morning, everyone. What kinds of animals did you see at Animal World yesterday? What were they like?
老师：I went to see the mammals. The elephants were so strong and big. Elephants have long noses, big ears and short tails.
学生：I went to Bird World. My favorite birds were the penguins and ostriches. Penguins can't fly, but they can swim. Ostriches are the biggest birds in the world, but they can't.
老师：Fly. I went to see the insects. There is one very big, beautiful butterfly. I also went to Seaworld. I saw a whale shark. It's a really large fish.
学生：I went to Reptile World. I saw many snakes and crocodiles. The crocodiles have big.
老师：Mouths and many teeth. I think they wanted to eat me. You got right numbers. Good. Yesterday they went to Animal World. What animals did they see? What kinds of animals are they and what are these animals like? Do you remember? Who wants to say something about Bill?
学生：Bill saw elephants. They are the mammals. The elephants were so strong and big. Elephants have long noses, big ears and short tails.
老师：Good. How about Jenny? She went to Bird World. Her favorite.
学生：Birds were the penguins and ostriches. Ostriches are the.
老师：Biggest birds in the world, but they can fly. Look, it's an ostrich. It can walk and run. They are ostriches. They live in grassland. Now let's move on to Ted. What animals did he see?
学生：He saw insects. There was one very beautiful butterfly. He also went to Seaworld. He saw a whale shark. It's a really large fish.
老师：This is a whale shark. And how about this one? Good. It's a whale. Do you know the differences between them? Yes, a whale shark is a fish, but the whale is a mammal.
老师：How about Sherry? She went to Reptile World. She saw many snakes and crocodiles. The crocodiles have Big Mouse and many kids. Just now they talked about the name classification and appearance of some animals.
老师：Now let's learn more about classification. Mammals and birds are warm blooded, but fish and reptiles are cold blooded and amphibians are also cold blooded. We call them vertebrates. How about invert rates? They have two parts. One is with jointed legs, for example, ins
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