绘本 Planet Earth （课件）-通用版小学英语课后服务素质拓展类

Planet Earth Teaching Goals 1.Have students get to know about our planet earth. 2.Guide students to talk about the structure of the earth. 3.Students are interested in science. Lead-in Do you know about our planet earth? atmosphere clouds space Vocabulary What can you see in the picture? _________________. Practice The air around the earth is called the ___________. Above the atmosphere is __________. There is no air in ________. atmosphere space Practice 1km 9km 20km 10km 100km _____ live on surface. The tallest building is about ____. The highest mountain is about ____. Practice How many layers are there under the earth’s surface? Can you say? Let’s learn. crust mantle core layers Let’s learn. This is the ______ layer. (first/ second/ third) It is the ________. Let’s learn. Which layer do people live on? People live on the earth’s _____. core crust mantle Practice How thick is the layer? How hot is the layer? What is the layer made of? Is the layer a solid, a liquid or a