Lesson 8 Why Are Plants Important 教案

UNIT 2　Plant a Plant! Lesson 8: Why Are Plants Important 设计说明 首先，通过问题导入新课。利用图片和句子，教授新单词和短语，为本课的学习扫清障碍。播放本课的录音文件，让学生了解对话的大体内容；快速阅读对话，回答问题，然后细读对话，完成Let’s Do It! No. 1。在对话中找出相关短语，根据对话内容，完成短文填空，并复述短文。接着做Let’s Do It! No. 2和No. 3中的相关练习。再进行语言点的讲解，帮助学生解决学习中的疑惑和重难点。最后，通过当堂达标训练，检查本课节的掌握情况。 教学目标 通过本课节的教学，学生达成以下目标： 1.知识目标 掌握单词：basic 接触单词：pleasant, shade, fulfill, soil 短语和句型：take energy from…,in a word It’s pleasant to do… 2.能力目标 (1)能听懂、读懂有关谈论植物的重要性的对话。 (2)能运用所学语言谈论植物的重要性。 3.情感目标 通过本节课的学习，了解植物的重要性，增强环保意识。 重点难点 1.重点：掌握本课节的单词、短语和句型。 2.难点：运用所学语言谈论植物的重要性。 教学准备 PPT 课件；本课节用到的音频文件。 授课时数 1课时 教学过程 Step 1　Lead-in 1. Free talk T: We learned Lesson 7 Planting Trees. Can you tell me why we plant trees S1: Trees help clean the air. S2: It’s pleasant to walk in the forest. S3: Trees and other plants cover the soil. The wind and water don’t carry the soil away. … 2. Ask the students to discuss the questions. What plants grow near your home Why do we need trees Step 2　Presentation 1. Teach the new words and expressions of this lesson. In summer, trees provide shade for us. 　　　　　　　　　 shade n. 树阴；阴凉处 It’s pleasant to sit in the shade. It’s pleasant to do…做……很愉快。 pleasant adj. 使人愉快的 The trees and plants take energy from the sun and turn it into food. take energy from从……获取能量 In a word, we can’t live without plants! in a word总之；一句话 2. Ask the students to read the new words and expressions in groups. pleasant adj. 使人愉快的 shade n. 树阴；阴凉处 fulfill v. 达到；执行 basic adj. 基本的；基础的 soil n. 土；土壤 take energy from从……获取能量 in a word总之；一句话 3. Ask the students to fill in the blanks. (1)It’s 　　　　 (愉快的) to climb mountains. (2)We can sit in the 　　　　 (树阴). It is a big tree. (3)Without them you will not be able to f　　　　 the tasks. (4) Farmers grow rice in the rich s　　　　. (5) Drums are b　　　　 to African music. Answers: (1) pleasant　(2) shade　(3) fulfill　(4) soil　(5) basic Step 3　Listening and reading Task 1 Listening Listen to the lesson and fill in the blanks. 1. With plants, the air will be　　　　 and fresh. 2. People can use plants in many different 　　　　. 3. Nobody can live　　　　 plants. Answers:1. clean　2. ways　3. without Task 2 Fast-reading Read the lesson and answer the questions. 1. Why does Jenny love the forest 2. Where can the trees and plants take energy from 3. Why are trees and other plants important to people Answers: 1. Because the air is always clean and fresh. 2. The trees and plants take energy from the sun. 3. Because they help us fulfill our basic needs. Task 3 Careful-reading 1. Ask the students to r ... ...