Unit 7 Natural World Lesson 7 Science （课件）-2023-2024学年剑桥国际少儿英语第五册

Unit 7 Natural World Science-- Extinct animals Extinct animals 2 3 。 Let’s play a guessing game. What are these animals? Animals can become extinct when all of their species of family die. elephant hippopotamus dinosaur What other extinct animals do you know? Dodo Bluebuck Thylacine When can animals become extinct? Why do animals become extinct? What are the examples of the actions of people? Animals can become extinct when all of their species of family die. There are many different reasons for this. For example, more animals eat it, there are sudden changes in the weather, natural disasters and new diseases. Also, the actions of people can be another reason. People cut down trees for wood, kill the animals for their fur and pollute the environment. When did dinosaurs die out? What is plate movement? What is an asteroid? What did the asteroid do? What happened to the weather? Why couldn’t bigger animals live? More than 65 million years ago. Volcanic eruptions, earthquakes, tsunamis and changes in the sea level. A very big rock from space. It hit the earth and made a big hole. The weather became colder. Because they didn’t have anything to eat. Read again and find words that mean 1.a family of animals 2. when an animal family dies 3.a big rock from space 4.when the earth moves 5. the opposite of die. 1 Three of the following reasons: more animals eat them, sudden changes in the weather, natural disasters, new diseases, the actions of people 2 more than 65 million years ago 3 The most popular idea is that an asteroid hit the earth. 4 It made a big hole and started a lot of fires, earthquakes, tsunamis and storms. 5 It became colder. PB70. ACTIVITY 1. Read and answer. Focus pupils on the Activity 1 instruction and on the pictures. Ask different pupils to read the questions aloud. Don’t explain words in the text at this stage. Pupils read the text quickly (and silently) to find answers to the five questions. They check and discuss their answers in pai