Unit 7 The natural world教学设计（5课时） 2025-2026学年英语译林版八年级上册

第1课时　Welcome to this unit Study of the Text　　　　　　　　　　　　　　　　　　　　　　　　　 What: This text focuses on ecosystems. Four facts about various ecosystems are given, like “Half of the world s animals and plants live in rainforests.” Students are asked to tick the facts they already know. Then, there s a dialogue between Kitty and David. They discuss how grasslands in different places have different animals and talk about the features of deserts. Finally, students are asked to share other interesting facts about ecosystems they know. The text aims to introduce students to basic knowledge about ecosystems and encourage communication and sharing. Why: The purpose is to cultivate students interest in ecosystems and improve their English communication and knowledge-sharing abilities. By presenting interesting facts and providing a model dialogue, it helps students expand their vocabulary related to ecosystems and practise expressing their thoughts. It also encourages students to observe and think about the natural world. Through sharing more facts, students can deepen their understanding of ecosystems while enhancing their English language skills. How: It uses simple and easy-to-understand English, along with pictures related to ecosystems, which is suitable for English learners. It guides students to engage with the topic by having them read facts, tick known information, and follow a model dialogue. The combination of pictures and text makes it easier for students to understand and participate. The dialogue flows naturally, helping students learn how to discuss the topic in daily communication. Teaching Objectives　　　　　　　　　　　　　　　　　　　　　　　　　 By the end of this lesson, students will be able to: 1.acquire and restate basic features, major species, and climates in ecosystems; 2.collaborate to describe the features of ecosystem; 3.reflect on the importance of protecting environment and respecting the rules of ecosystems. Teaching Process　　　　　　　　　　　　　　　　　　　　　　　　　 Teaching Objectives Teaching Activities Effectiveness Evaluation 1.To acquire and restate basic features, major species, and climates in ecosystems. 2.To collaborate to describe the features of ecosystem. Step 1　Lead-in 1.Play a video clip about biodiversity. Guide students to watch and answer questions. Q: What makes up biodiversity 2.Show a word cloud with ecosystem-related terms and ask students to identify key vocabulary. Step 2　Presentation 1.Show pictures of rainforests, coral reefs, grasslands, and the polar ice. Ask students to identify them and introduce new vocabulary with pronunciations. 2.Have students read and tick the facts they already know about ecosystems. 3.Students discuss other ecosystem knowledge in groups and write ideas on the board in the brainstorming & group discussion. 4.Play the dialogue between Kitty and David. Students fill in the blanks with missing words/phrases. 5.Students listen again and imita ... ...