UNIT 2 Lesson 8教学详案—冀教版中学英语八年级下

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 read the lesson again and tick the items mentioned. （Let’s Do It! No. 1） People can eat plants or use them as medicine. Plants help make the air clean and fresh. Many animals live in the forest. Books, paper, pencils and erasers all come from plants. Animals eat the fruit from the trees. The plants cover the soil and can stop the dust. When the weather is sunny and hot, people can sit in the shade under a tree. The plants make everything look beautiful. People use wood from trees to build houses and furniture. Answers: 除去Books, paper, pencils and erasers all come from plants.和People use wood from trees to build houses and furniture. 外，其他内容课文中均有提到。 Task 4 After-reading 1. Read the lesson again and find out these phrases. Ask the students to translate them into English. 在树下的树阴里 in the shade under a tree (长)在树上 on trees 对……来说重要 be important to… 满足某人的需要 fulfill one’s needs 从……当中获取能量 take energy from... 由……制成（看不出原材料） be made from... 把……搬走 carry...away 总而言之，简言之 in a word 2. Fill in the blanks and try to retell the passage. Danny, Jenny and Brian are walking in a forest. Brian thinks that trees and other plants help 　　　　 the air. Jenny says it is pleasant 　　　　 in the forest. She believes trees and other plants are important to people. They help people 　　　　 their basic needs. The trees and plants take energy from the sun and 　　　　 food. Medicine and clothing are also 　　　　 trees and plants. And many animals live in the forest and plants also 　　　　 everything look beautiful! Answers: clean; to walk; fulfill; turn it into; made from; make Step 4　Practice 1. Complete the passage with the correct forms of the words in the box.(Let’s Do It! No. 2) There are many trees and plants. It’s 　　　　 to walk in the forest. When the weather is sunny and hot, you can sit in the 　　　　 under a tree. Trees and other plants are one of our 　　　　 needs for life. Many things are made from trees and plants. Most animals live in the 　　　　 and eat the fruit from the trees. And plants 　　　　 the soil. That way, the wind and water don’t carry the soil away. 2. Ask the students to do the exercise independently, then check the answers in groups, and finally as a class. Answers: pleasant; shade; basic; forest(s); cover Step 5　Pair work 1. Ask the students to work in pairs to finish Let’s Do It! No. 3. Think about why we need plants. Discuss it and fill in the mind map. You can use some ideas from Activity 1. Step 6　Discussion Ask the students to discuss the importance of the plants. For the environment: Plants help clean the air. Plants cover the soil. So the wind and water don’t carry the soil away. For human’s daily needs: The plants take energy from the sun and turn it into food. Medicine and clothing are made from plants. For animals: Many animals live in the forest and eat the fruit from the trees or other plants. Step 7　Summary 1. New words: pleasant, shade, fulfill, basic, soil 2. Phrases: take energy from…, in a word 3. Sentences: ①It’s pleasant to walk in the forest. ②Medicine and clothing are also made from trees and plants. ③That way, the wind and water don’t carry the soil away. ④In a word, we can’t live without plants！ Step 8　Language points 1. It’s pleasant to walk in the forest.在森林里散步是令人愉快的。 （1）It’s pleasant to do sth.意为“做某事很愉快”，这是It’s +adj.+to do sth.句式，句中it是形式主语，真正的主语是后面的动词不定式（短语）。 It’s pleasant to play with friends.和朋友们一起玩耍是令人愉快的。 It’s important to learn Chinese well.学好汉语很重要。 （2） pleasant 形容词，意为“使人愉快的”。 It’s a pleasant evening.那是一个令人愉快的夜晚。 Our school trip was pleasant.我们的学校旅行是令人愉快的。 【拓展】①please 感叹词，意为“请”。 Could you please clean up the living room 请把起居室打扫一下好吗？ ②pleased 形容词，意为“高兴的，满意的”。 He was pleased with the result.他对这个结果感到满意。 ③pleasure作不可数名词时,意为“愉悦,愉快”；作可数名词时,意为“乐事；快事”。 With pleasure.乐意效劳。 It’s a pleasure to meet you.认识你很高兴。 2. Medicine and clothing are also made from trees and plants. 药物和衣服也是用树木和植物制成的。 be made from意为“由……制成”,表示从成品上看不出原材料。 The wine is made from grapes.这酒是由葡萄制成的。 【拓展】①be made of意为“由……制成”,表示从成品上能看出原材料。 The desk is made of wood.这张桌子是由木头制成的。 ②be made by意思是“被……制成”,其后接制造者,表示成品是由谁制作的。 The card is made by Lucy.这张卡片是由露西做的。 ③be made in意思是“在……制造”,其后接地名,强调生产地点。 This bag is made in China.这个包是中国制造的。 ④be made up of意思是“由……组成”,强调组成部分。 The team is made up of six workers.这支团队是由六个工人组成的。 3. That way, the wind and water don’t carry the soil away. 那样，风和水就不会使土壤流失。 carry…away意思是“把……搬走，把……移走”，还可作carry away,是“动词+副词”结构的短语，当其宾语是名词时,名词可放在carry和away之间,也可放在away后，当其宾语是人称代词时,要将人称代词放在carry与 away之间。 Can you carry away the book =Can you carry the book away 你能把这本书带走吗 Here are your clothes. Please carry them away. 这些是你的衣服。请把它们带走。 4. In a word, we can’t live without plants！ 总之，没有植物，我们就不能生存！ in a word 意为“总之，一句话” ，常放在句首表示归纳和总结。 In a word, your speech cheered up many people and helped them work out a lot of problems. 总之，你的演讲让许多人振作起来了，并且帮助他们解决了很多问题。 In a word, I have a bad day in the theme park. 总之，我在主题公园玩得很不开心。 Step 9 Homework 1. Try to remember the new words and expressions of this lesson. 2. Preview Lesson 9. 当堂达标 I.单项选择 1.The barbecue(烧烤) was 　　　　 and everybody was 　　　　, chatting and relaxing themselves. A. pleasant; pleased B. pleased; pleasant C. pleasant; pleasant D. pleased; pleased 2. Books are made 　　　 paper while paper is mainly made 　　　 wood. A. of; of B. from; from C. of; from D. from; of 3. In 　　　　 word, we believe what our teachers said. A．the B．a C．an D．/　 4. Plants cover the soil. Then the wind and water don’t carry the soil 　　　　. A. in B. out of C. away D. on 5. Can you see seven monkeys 　　　　 the tree？ A. on B. in C. of D. above Ⅱ. 根据汉语意思完成句子 1. 一些女孩正在树阴下玩游戏。 Some girls are playing 　　　　 　　　　 　　　　. 2. 繁重的工作把那个年轻的男子变成了一个疲惫的人。 Hard work 　　　　 the young man 　　　　 a tired person. 3. 在游泳池游泳是令人愉快的。 It’s 　　　　 　　　　 swim in the pool. 4. 我们能从食物和饮料中获取能量。 We can 　　　　 　　　　 　　　　 the food and drink. 答案:Ⅰ.1—5 ACBCB Ⅱ.1. in the shade　2. turned ,into　3. pleasant to　4. take energy from 板书设计 UNIT 2　Plant a Plant! Lesson 8: Why Are Plants Important 单词：pleasant, shade, fulfill, basic, soil 短语：take energy from…,in a word 句子： ① It’s pleasant to walk in the forest. ②Medicine and clothing are also made from trees and plants. ③That way, the wind and water don’t carry the soil away. ④In a word, we can’t live without plants！
教学反思